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 <<O>>  Difference Topic SpeXter (r1.28 - 01 Oct 2004 - MarcoLeoni)

META TOPICPARENT WorkAreaOne
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SpeXter - On-the-fly Extraction of Spectra

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SpeXter - On-the-fly Extraction of Spectra


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SpeXter.GIF
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SpeXter.GIF

Motivation

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The usefulness of current large astronomical archives are limited by the fact that users have to visually inspect and pre-select spectroscopic data. This makes it difficult for archive researchers to identify specific observations which might be of interest to them. Within the context of the AVO, this fundamental limitation should be remedied.

The aXe spectral extraction tool will be a starting point for an AVO spectral pre-viewer and data selection tool. This method was already successfully applied to both HST's ACS slitless spectroscopy data and to VLT's FORS2 multi-object slit spectroscopy.

Line: 22 to 21

Processing Steps

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ACS

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ACS


  • archive request: _FLT images were used
  • IRAF: split mutli-extension fits into two files (science extensions 1 & 4)
  • sExtractor: get target list from direct images (configurations files .sex, .par)
  • aXe: extract set of 1-D spectra (configurations files a4vo_FORS.0, a4vo_FORS.1)
  • return results (e.g. plot with Specview)
Changed:
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FORS2

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FORS2


  • archive request: raw, master bias (once), fims (once)
  • python script: patch FITS header (where needed)
  • aXe: extract set of 1-D spectra (configurations files a4vo_ACS1, a4vo_ACS4)
Line: 41 to 38

Solved & Open Issues

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ACS

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ACS


name description status
direct-grism pair files automatically pick the right files from set of archive products for aXe processing open
sextractor conf. detection sensitivity needs to be set for each frame open
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FORS2

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FORS2


name description status
new chipset prescan, overscan, binning solved
slit positions patch in missing positions solved
Line: 55 to 52
background subtraction automatic? possible? necessary?1 open
1 use reference slits to get sky spectrum, then subtract it from image spectrum?
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Sample Spectra

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ACS

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ACS


  image sc. ext. 1 sc. ext. 4 spectrum ext.1 spectrum ext.4
direct j8hp9kfvq_flt.fits.gz j8hp9kfvq_flt_1.fits.gz j8hp9kfvq_flt_4.fits.gz - -
grism j8hp9kfwq_flt.fits.gz j8hp9kfwq_flt_1.fits.gz j8hp9kfwq_flt_4.fits.gz j8hp9kfwq_1.spc.fits.gz j8hp9kfwq_2.spc.fits.gz
Line: 70 to 65

     Sc. ext. 1 - 14, 33, 40, 41, 45
    Sc. ext. 4 - 21, 25, 27, 31, 34
Changed:
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FORS2

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FORS2


image (science/sky/mxu) slit (test/slit/image) bias2 spectrum
FORS2.2002-10-04T04:05:23.476 FORS2.2002-10-04T03:28:41.302 M.FORS2.2003-04-28T09:54:22.726.fits .gz
FORS2.2000-08-11T16:31:40.018     .gz
Line: 81 to 75

Spectrum examples:

  • Fig. 1 shows an example of result spectrum obtained with aXe on FORS2 image ( data set ID = FORS2.2002-06-08T01:56:08.677, slit ID = FORS2.2002-06-08T01:51:03.195, bias ID = M.FORS2.2002-10-23T08:45:16.541). In Fig. 2 there are two spectra of the same object, showing difference using/not using aXe_BE task to remove background (see a zoom in Fig. 3)
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  • Fig. 4 shows spectrum from image FORS2.2002-10-04T04:05:23.476 (OBJ=155; RA=53.1221583333; DEC=-27.8470055556)

Requirements

Hardware

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  CPU cycles data volume
input - scratch - output 		memory other
ACS        
FORS2        

Software

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  • OS
    • Unix (Solaris 8) / Linux (RedHat 7.3, SuSe 8.1)
Deleted:
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Deleted:
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  • external libraries
    • Python Scientific & Statistics libraries
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  • ...

Line: 131 to 119

Tech. Contact

MarcoLeoni, MarkusDolensky

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Line: 143 to 131

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<!-- -->
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META FILEATTACHMENT refslit.jpg attr="" comment="FORS2.2002-06-08T03:04:36.99[89] refslit targets" date="1062071362" path="refslit.jpg" size="99668" user="MarkusDolensky" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1.fits.gz attr="h" comment="j8hp9kfwq_flt_1.fits (.gz)" date="1063199577" path="j8hp9kfwq_flt_1.fits.gz" size="29654174" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4.fits.gz attr="h" comment="j8hp9kfwq_flt_4.fits (.gz)" date="1063199633" path="j8hp9kfwq_flt_4.fits.gz" size="29689598" user="MarcoLeoni" version="1.1"

 <<O>>  Difference Topic SpeXter (r1.27 - 07 May 2004 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

SpeXter - On-the-fly Extraction of Spectra

Line: 96 to 96

Software

  • OS
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    • Unix (Solaris 8) / Lunix (RedHat 7.3, SuSe 8.1)
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    • Unix (Solaris 8) / Linux (RedHat 7.3, SuSe 8.1)

  • tools
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 <<O>>  Difference Topic SpeXter (r1.26 - 26 Apr 2004 - MarkusDolensky)

META TOPICPARENT WorkAreaOne

SpeXter - On-the-fly Extraction of Spectra

Line: 16 to 16

It provides non-optimal but quick and robust bulk extraction and full calibration of spectra which can be used to browse the spectral content of a dataset stored in an archive. Such a capability will be a first, yet fundamental step towards successfully using spectroscopic data within the AVO.

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<		 Florian Kerber (ESO), Norbert Pirzkal (ESO)
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>		 Florian Kerber (ESO/ST-ECF), Norbert Pirzkal (ESO/ST-ECF)

 Mar. 20, 2003
Line: 114 to 114

Status

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<		 A number of spectra FORS2 and ACS spectra were extracted at ESO and results have been reviewed by scientists. The automatic procedure yields mediocre quality spectra suited for previewing. No further efforts are scheduled at present (Jan. 2004).
>
>		 A number of FORS2 and ACS spectra were extracted at ESO and results have been reviewed by scientists. The goal of producing previews which are sufficient for selecting interesting observations for consequent archive retrieval has been achieved. No further efforts are scheduled at present (Jan. 2004).

A summary report (.pdf, .ppt) from M. Leoni is available.


 <<O>>  Difference Topic SpeXter (r1.25 - 20 Apr 2004 - MarkusDolensky)

META TOPICPARENT WorkAreaOne

SpeXter - On-the-fly Extraction of Spectra

Line: 114 to 114

Status

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<		 Test pipeline of aXe for FORS2 and ACS data is being set up at ESO.
>
>		 A number of spectra FORS2 and ACS spectra were extracted at ESO and results have been reviewed by scientists. The automatic procedure yields mediocre quality spectra suited for previewing. No further efforts are scheduled at present (Jan. 2004).

A summary report (.pdf, .ppt) from M. Leoni is available.


Line: 177 to 179
META FILEATTACHMENT 162sens_5.fits attr="h" comment="FORS2 sensitivity" date="1070627840" path="162sens_5.fits" size="8640" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT a4vo_ACS1 attr="h" comment=" aXe configuration file (ACS, chip 1 = sc. ext. 1)" date="1070628024" path="a4vo_ACS1" size="4955" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT a4vo_ACS4 attr="h" comment=" aXe configuration file (ACS, chip 2 = sc. ext. 4)" date="1070628058" path="a4vo_ACS4" size="4028" user="MarcoLeoni" version="1.1"
Added:
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META FILEATTACHMENT SpeXter.pdf attr="" comment="Spexter project summary by M. Leoni" date="1082478238" path="SpeXter.pdf" size="1637906" user="MarkusDolensky" version="1.1"
META FILEATTACHMENT SpeXter.ppt attr="" comment="Spexter project summary by M. Leoni" date="1082478517" path="SpeXter.ppt" size="367104" user="MarkusDolensky" version="1.1"

META TOPICMOVED MarcoLeoni? date="1069834712" from="Avo.Spexter" to="Avo.SpeXter"

 <<O>>  Difference Topic SpeXter (r1.24 - 09 Dec 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

SpeXter - On-the-fly Extraction of Spectra

Line: 77 to 77
FORS2.2000-08-11T16:31:40.018     .gz
FORS2.2002-05-13T08:35:13.686     .gz
FORS2.2002-05-11T09:19:33.924     .gz
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<!--

... ... ... ...
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2 Usually master bias files are used (M.FORS2.yyyy-mm-ddThh:mm:ss.mmm.fits). If no master are present, normal biases are chosen.

Spectrum examples:


 <<O>>  Difference Topic SpeXter (r1.23 - 05 Dec 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

SpeXter - On-the-fly Extraction of Spectra

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<		 SpeXter.GIF
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>
SpeXter.GIF

TOC: No TOC in "Avo.SpeXter"
Line: 18 to 18

Florian Kerber (ESO), Norbert Pirzkal (ESO)
Mar. 20, 2003

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Processing Steps

Line: 27 to 26

  • archive request: _FLT images were used
  • IRAF: split mutli-extension fits into two files (science extensions 1 & 4)
Changed:
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<
  • aXe 1: SExtractor on direct images to get target list
  • aXe 2: extract set of 1-D spectra
  • return results (e.g. plot with Specview)
>
>
  • sExtractor: get target list from direct images (configurations files .sex, .par)
  • aXe: extract set of 1-D spectra (configurations files a4vo_FORS.0, a4vo_FORS.1)
  • return results (e.g. plot with Specview)

FORS2

  • archive request: raw, master bias (once), fims (once)
Changed:
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<
  • patch FITS header
  • aXe extracts set of 1d spectra
>
>
  • python script: patch FITS header (where needed)
  • aXe: extract set of 1-D spectra (configurations files a4vo_ACS1, a4vo_ACS4)

  • return results (e.g. plot with Specview)

Line: 180 to 179
META FILEATTACHMENT a4vo_FORS.1 attr="h" comment="aXe configuration file (FORS2)" date="1070612806" path="a4vo_FORS.1" size="341" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_1.spc.fits.gz attr="h" comment="j8hp9kfwq - sc. ext. 1 - spectrum" date="1070613650" path="j8hp9kfwq_1.spc.fits.gz" size="1865681" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_2.spc.fits.gz attr="h" comment="j8hp9kfwq - sc. ext. 4 - spectrum" date="1070613683" path="j8hp9kfwq_2.spc.fits.gz" size="1469047" user="MarcoLeoni" version="1.1"
Added:
>
>
META FILEATTACHMENT 162sens_5.fits attr="h" comment="FORS2 sensitivity" date="1070627840" path="162sens_5.fits" size="8640" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT a4vo_ACS1 attr="h" comment=" aXe configuration file (ACS, chip 1 = sc. ext. 1)" date="1070628024" path="a4vo_ACS1" size="4955" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT a4vo_ACS4 attr="h" comment=" aXe configuration file (ACS, chip 2 = sc. ext. 4)" date="1070628058" path="a4vo_ACS4" size="4028" user="MarcoLeoni" version="1.1"

META TOPICMOVED MarcoLeoni? date="1069834712" from="Avo.Spexter" to="Avo.SpeXter"

 <<O>>  Difference Topic SpeXter (r1.22 - 05 Dec 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

SpeXter - On-the-fly Extraction of Spectra

Line: 152 to 152

 -->
META FILEATTACHMENT refslit.jpg attr="" comment="FORS2.2002-06-08T03:04:36.99[89] refslit targets" date="1062071362" path="refslit.jpg" size="99668" user="MarkusDolensky" version="1.1"
Deleted:
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META FILEATTACHMENT j8hp9kfwq_flt_1_1.SPC.fits.gz attr="h" comment="j8hp9kfwq_flt_1_1.SPC.fits (.gz)" date="1063199482" path="j8hp9kfwq_flt_1_1.SPC.fits.gz" size="898594" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_1.SPC.fits.gz attr="h" comment="j8hp9kfwq_flt_4_1.SPC.fits (.gz)" date="1063199516" path="j8hp9kfwq_flt_4_1.SPC.fits.gz" size="704047" user="MarcoLeoni" version="1.1"

META FILEATTACHMENT j8hp9kfwq_flt_1.fits.gz attr="h" comment="j8hp9kfwq_flt_1.fits (.gz)" date="1063199577" path="j8hp9kfwq_flt_1.fits.gz" size="29654174" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4.fits.gz attr="h" comment="j8hp9kfwq_flt_4.fits (.gz)" date="1063199633" path="j8hp9kfwq_flt_4.fits.gz" size="29689598" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt.fits.gz attr="h" comment="j8hp9kfvq_flt.fits (.gz)" date="1063200569" path="j8hp9kfvq_flt.fits.gz" size="116893144" user="MarcoLeoni" version="1.1"

 <<O>>  Difference Topic SpeXter (r1.21 - 05 Dec 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

SpeXter - On-the-fly Extraction of Spectra

Line: 63 to 63

ACS

Changed:
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<
  image sc. ext. 1 sc. ext. 4 catalog ext.1 catalog ext.4 spectrum ext.1 spectrum ext.4
direct j8hp9kfvq_flt.fits.gz j8hp9kfvq_flt_1.fits.gz j8hp9kfvq_flt_4.fits.gz j8hp9kfvq_flt_1.cat.gz j8hp9kfvq_flt_4.cat.gz - -
grism j8hp9kfwq_flt.fits.gz j8hp9kfwq_flt_1.fits.gz j8hp9kfwq_flt_4.fits.gz j8hp9kfwq_flt_1_1.cat.gz j8hp9kfwq_flt_4_1.cat.gz j8hp9kfwq_flt_1_1.SPC.fits.gz j8hp9kfwq_flt_4_1.SPC.fits.gz

Some images (.jpg) of the spectra
    Sc. ext. 1 - 14, 33, 40, 41, 45
    Sc. ext. 4 - 25, 27, 29, 34

>
>
  image sc. ext. 1 sc. ext. 4 spectrum ext.1 spectrum ext.4
direct j8hp9kfvq_flt.fits.gz j8hp9kfvq_flt_1.fits.gz j8hp9kfvq_flt_4.fits.gz - -
grism j8hp9kfwq_flt.fits.gz j8hp9kfwq_flt_1.fits.gz j8hp9kfwq_flt_4.fits.gz j8hp9kfwq_1.spc.fits.gz j8hp9kfwq_2.spc.fits.gz

Some images (.pdf) of the spectra
    Sc. ext. 1 - 14, 33, 40, 41, 45
    Sc. ext. 4 - 21, 25, 27, 31, 34


FORS2

image (science/sky/mxu) slit (test/slit/image) bias2 spectrum
Changed:
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<
FORS2.2002-10-04T04:05:23.476 FORS2.2002-10-04T03:28:41.302 M.FORS2.2003-04-28T09:54:22.726.fits FORS2.2002-10-04T04:05:23.476_1.SPC.fits.gz
FORS2.2000-08-11T16:31:40.018     FORS2.2000-08-11T16:31:40.018_1.SPC.fits.gz
FORS2.2002-05-13T08:35:13.686     FORS2.2002-05-13T08:35:13.686_1.SPC.fits.gz
FORS2.2002-05-11T09:19:33.924     FORS2.2002-05-11T09:19:33.924_1.SPC.fits.gz
>
>
FORS2.2002-10-04T04:05:23.476 FORS2.2002-10-04T03:28:41.302 M.FORS2.2003-04-28T09:54:22.726.fits .gz
FORS2.2000-08-11T16:31:40.018     .gz
FORS2.2002-05-13T08:35:13.686     .gz
FORS2.2002-05-11T09:19:33.924     .gz

<!--

... ... ... ...
Line: 102 to 102

Software

  • OS
Changed:
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    • Unix (Solaris 8) / Lunix (RedHat? 7.3, SuSe? 8.1)
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    • Unix (Solaris 8) / Lunix (RedHat 7.3, SuSe 8.1)

Line: 152 to 152

 -->
META FILEATTACHMENT refslit.jpg attr="" comment="FORS2.2002-06-08T03:04:36.99[89] refslit targets" date="1062071362" path="refslit.jpg" size="99668" user="MarkusDolensky" version="1.1"
Deleted:
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META FILEATTACHMENT j8hp9kfwq_flt_1_1.cat.gz attr="h" comment="j8hp9kfwq_flt_1_1.cat (.gz)" date="1063195688" path="j8hp9kfwq_flt_1_1.cat.gz" size="2798" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_1.cat.gz attr="h" comment="j8hp9kfwq_flt_4_1.cat (.gz)" date="1063195793" path="j8hp9kfwq_flt_4_1.cat.gz" size="2378" user="MarcoLeoni" version="1.1"

META FILEATTACHMENT j8hp9kfwq_flt_1_1.SPC.fits.gz attr="h" comment="j8hp9kfwq_flt_1_1.SPC.fits (.gz)" date="1063199482" path="j8hp9kfwq_flt_1_1.SPC.fits.gz" size="898594" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_1.SPC.fits.gz attr="h" comment="j8hp9kfwq_flt_4_1.SPC.fits (.gz)" date="1063199516" path="j8hp9kfwq_flt_4_1.SPC.fits.gz" size="704047" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1.fits.gz attr="h" comment="j8hp9kfwq_flt_1.fits (.gz)" date="1063199577" path="j8hp9kfwq_flt_1.fits.gz" size="29654174" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4.fits.gz attr="h" comment="j8hp9kfwq_flt_4.fits (.gz)" date="1063199633" path="j8hp9kfwq_flt_4.fits.gz" size="29689598" user="MarcoLeoni" version="1.1"
Deleted:
<
<
META FILEATTACHMENT j8hp9kfvq_flt_1.cat.gz attr="h" comment="j8hp9kfvq_flt_1.cat (.gz)" date="1063199730" path="j8hp9kfvq_flt_1.cat.gz" size="3434" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_4.cat.gz attr="h" comment="j8hp9kfvq_flt_4.cat (.gz)" date="1063199761" path="j8hp9kfvq_flt_4.cat.gz" size="2868" user="MarcoLeoni" version="1.1"

META FILEATTACHMENT j8hp9kfvq_flt.fits.gz attr="h" comment="j8hp9kfvq_flt.fits (.gz)" date="1063200569" path="j8hp9kfvq_flt.fits.gz" size="116893144" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt.fits.gz attr="h" comment="j8hp9kfwq_flt.fits (.gz)" date="1063200748" path="j8hp9kfwq_flt.fits.gz" size="116260788" user="MarcoLeoni" version="1.1"
Changed:
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<
META FILEATTACHMENT acs.sex attr="h" comment="SExtractor configuration file" date="1062674808" path="acs.sex" size="3905" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT acs.par attr="h" comment="SExtractor catalog parameters" date="1062674868" path="acs.par" size="1247" user="MarcoLeoni" version="1.1"
>
>
META FILEATTACHMENT acs.sex attr="h" comment="SExtractor configuration file" date="1070612546" path="acs.sex" size="3899" user="MarcoLeoni" version="1.2"
META FILEATTACHMENT acs.par attr="h" comment="SExtractor catalog parameters" date="1070612579" path="acs.par" size="1247" user="MarcoLeoni" version="1.1"

META FILEATTACHMENT spexter040903.txt attr="" comment="Meeting minutes Sep. 4, 2003" date="1062688384" path="spexter040903.txt" size="2097" user="MarkusDolensky" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_1.fits.gz attr="h" comment="j8hp9kfvq_flt_1.fits (.gz)" date="1062777465" path="j8hp9kfvq_flt_1.fits.gz" size="30061035" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_4.fits.gz attr="h" comment="j8hp9kfvq_flt_4.fits (.gz)" date="1062777528" path="j8hp9kfvq_flt_4.fits.gz" size="30077294" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT SpeXter_FORS2_nobckg.jpg attr="h" comment="FORS2 spectrum result example" date="1063012295" path="SpeXter_FORS2_nobckg.jpg" size="90969" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT SpeXter_FORS2_bckg_onoff.jpg attr="h" comment="FORS2 spectrum: with&without aXe_BE task" date="1063012410" path="SpeXter_FORS2_bckg_onoff.jpg" size="164857" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT SpeXter_FORS2_bckg_onoff_zoom.jpg attr="h" comment="FORS2 spectrum: with&without aXe_BE task (zoom)" date="1063012439" path="SpeXter_FORS2_bckg_onoff_zoom.jpg" size="113015" user="MarcoLeoni" version="1.1"
Deleted:
<
<
META FILEATTACHMENT j8hp9kfwq_flt_1_obj14.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 1 - obj. 14" date="1063032825" path="j8hp9kfwq_flt_1_obj14.jpg" size="82747" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_obj33.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 1 - obj. 33" date="1063032865" path="j8hp9kfwq_flt_1_obj33.jpg" size="93610" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_obj40.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 1 - obj. 40" date="1063032901" path="j8hp9kfwq_flt_1_obj40.jpg" size="82448" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_obj41.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 1 - obj. 41" date="1063032929" path="j8hp9kfwq_flt_1_obj41.jpg" size="79892" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_obj45.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 1 - obj. 45" date="1063032957" path="j8hp9kfwq_flt_1_obj45.jpg" size="231336" user="MarcoLeoni" version="1.1"
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META FILEATTACHMENT SpeXter.GIF attr="h" comment="" date="1070289846" path="SpeXter.GIF" size="48448" user="MarcoLeoni" version="1.1"
Added:
>
>
META FILEATTACHMENT j8hp9kfwq_1.spc.14A.pdf attr="h" comment="j8hp9kfwq - sc. ext. 1 - obj. 14A" date="1070611414" path="j8hp9kfwq_1.spc.14A.pdf" size="62264" user="MarcoLeoni" version="1.1"
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META FILEATTACHMENT a4vo_FORS.0 attr="h" comment="aXe configuration file (FORS2, no sensitivity)" date="1070612749" path="a4vo_FORS.0" size="257" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT a4vo_FORS.1 attr="h" comment="aXe configuration file (FORS2)" date="1070612806" path="a4vo_FORS.1" size="341" user="MarcoLeoni" version="1.1"
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META FILEATTACHMENT j8hp9kfwq_2.spc.fits.gz attr="h" comment="j8hp9kfwq - sc. ext. 4 - spectrum" date="1070613683" path="j8hp9kfwq_2.spc.fits.gz" size="1469047" user="MarcoLeoni" version="1.1"

META TOPICMOVED MarcoLeoni? date="1069834712" from="Avo.Spexter" to="Avo.SpeXter"

 <<O>>  Difference Topic SpeXter (r1.20 - 01 Dec 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

SpeXter - On-the-fly Extraction of Spectra

Changed:
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<		 TOC: No TOC in "Avo.SpeXter"
>
>		 SpeXter.GIF

Added:
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>		 TOC: No TOC in "Avo.SpeXter"

Motivation

Line: 136 to 138

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>
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Line: 144 to 147

Added:
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>

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Deleted:
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META FILEATTACHMENT refslit.jpg attr="" comment="FORS2.2002-06-08T03:04:36.99[89] refslit targets" date="1062071362" path="refslit.jpg" size="99668" user="MarkusDolensky" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_1.cat.gz attr="h" comment="j8hp9kfwq_flt_1_1.cat (.gz)" date="1063195688" path="j8hp9kfwq_flt_1_1.cat.gz" size="2798" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_1.cat.gz attr="h" comment="j8hp9kfwq_flt_4_1.cat (.gz)" date="1063195793" path="j8hp9kfwq_flt_4_1.cat.gz" size="2378" user="MarcoLeoni" version="1.1"
Line: 179 to 180
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Added:
>
>
META FILEATTACHMENT SpeXter.GIF attr="h" comment="" date="1070289846" path="SpeXter.GIF" size="48448" user="MarcoLeoni" version="1.1"

META TOPICMOVED MarcoLeoni? date="1069834712" from="Avo.Spexter" to="Avo.SpeXter"

 <<O>>  Difference Topic SpeXter (r1.19 - 26 Nov 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

SpeXter - On-the-fly Extraction of Spectra

Line: 100 to 100

Software

  • OS
Changed:
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<
    • Unix (all test were made on Solaris 8)
>
>
    • Unix (Solaris 8) / Lunix (RedHat? 7.3, SuSe? 8.1)

Line: 110 to 110

  • external libraries
Changed:
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<
    • Python Scientific & Statistics libraries ()
>
>
    • Python Scientific & Statistics libraries

Changed:
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<
  • other
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>
  • ...


 <<O>>  Difference Topic SpeXter (r1.18 - 26 Nov 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne
Changed:
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<

Spexter - On-the-fly Extraction of Spectra

>
>

SpeXter - On-the-fly Extraction of Spectra


TOC: No TOC in "Avo.SpeXter"

Line: 179 to 179
META FILEATTACHMENT j8hp9kfwq_flt_4_obj29.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 4 - obj. 29" date="1063033056" path="j8hp9kfwq_flt_4_obj29.jpg" size="190483" user="MarcoLeoni" version="1.1"
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META FILEATTACHMENT fors2_goods8_406.JPG attr="h" comment="FORS2.2002-10-04T04:05:23.476" date="1063195980" path="fors2_goods8_406.JPG" size="93548" user="MarcoLeoni" version="1.1"
Added:
>
>
META TOPICMOVED MarcoLeoni? date="1069834712" from="Avo.Spexter" to="Avo.SpeXter"

 <<O>>  Difference Topic SpeXter (r1.17 - 10 Nov 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 14 to 14

It provides non-optimal but quick and robust bulk extraction and full calibration of spectra which can be used to browse the spectral content of a dataset stored in an archive. Such a capability will be a first, yet fundamental step towards successfully using spectroscopic data within the AVO.

Changed:
<
<		 Florian Kerber (ESO), Norbert Pirzkal (ESO)
>
>		 Florian Kerber (ESO), Norbert Pirzkal (ESO)

 Mar. 20, 2003


 <<O>>  Difference Topic SpeXter (r1.16 - 11 Sep 2003 - MarkusDolensky)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 62 to 62

ACS

  image sc. ext. 1 sc. ext. 4 catalog ext.1 catalog ext.4 spectrum ext.1 spectrum ext.4
Changed:
<
<
direct j8hp9kfvq_flt.fits.gz j8hp9kfvq_flt_1.fits.gz j8hp9kfvq_flt_4.fits.gz j8hp9kfvq_flt_1.cat.gz j8hp9kfvq_flt_4.cat.gz - -
>
>
direct j8hp9kfvq_flt.fits.gz j8hp9kfvq_flt_1.fits.gz j8hp9kfvq_flt_4.fits.gz j8hp9kfvq_flt_1.cat.gz j8hp9kfvq_flt_4.cat.gz - -

grism j8hp9kfwq_flt.fits.gz j8hp9kfwq_flt_1.fits.gz j8hp9kfwq_flt_4.fits.gz j8hp9kfwq_flt_1_1.cat.gz j8hp9kfwq_flt_4_1.cat.gz j8hp9kfwq_flt_1_1.SPC.fits.gz j8hp9kfwq_flt_4_1.SPC.fits.gz

Some images (.jpg) of the spectra


 <<O>>  Difference Topic SpeXter (r1.15 - 10 Sep 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 72 to 72

FORS2

image (science/sky/mxu) slit (test/slit/image) bias2 spectrum
Added:
>
>
FORS2.2002-10-04T04:05:23.476 FORS2.2002-10-04T03:28:41.302 M.FORS2.2003-04-28T09:54:22.726.fits FORS2.2002-10-04T04:05:23.476_1.SPC.fits.gz
FORS2.2000-08-11T16:31:40.018     FORS2.2000-08-11T16:31:40.018_1.SPC.fits.gz
FORS2.2002-05-13T08:35:13.686     FORS2.2002-05-13T08:35:13.686_1.SPC.fits.gz
FORS2.2002-05-11T09:19:33.924     FORS2.2002-05-11T09:19:33.924_1.SPC.fits.gz

<!--


... ... ... ...
Added:
>
>		 -->

2 Usually master bias files are used (M.FORS2.yyyy-mm-ddThh:mm:ss.mmm.fits). If no master are present, normal biases are chosen.

Changed:
<
<		 Spectrum example:
    Fig. 1 shows an example of result spectrum obtained with aXe on FORS2 image ( data set ID = FORS2.2002-06-08T01:56:08.677, slit ID = FORS2.2002-06-08T01:51:03.195, bias ID = M.FORS2.2002-10-23T08:45:16.541)
    In Fig. 2 there are two spectra of the same object, showing difference using/not using aXe_BE task to remove background (see a zoom in Fig. 3)
>
>		 Spectrum examples:
  • Fig. 1 shows an example of result spectrum obtained with aXe on FORS2 image ( data set ID = FORS2.2002-06-08T01:56:08.677, slit ID = FORS2.2002-06-08T01:51:03.195, bias ID = M.FORS2.2002-10-23T08:45:16.541). In Fig. 2 there are two spectra of the same object, showing difference using/not using aXe_BE task to remove background (see a zoom in Fig. 3)

Added:
>
>
  • Fig. 4 shows spectrum from image FORS2.2002-10-04T04:05:23.476 (OBJ=155; RA=53.1221583333; DEC=-27.8470055556)

Requirements

Line: 134 to 138



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>


<!-- -->

Added:
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META FILEATTACHMENT refslit.jpg attr="" comment="FORS2.2002-06-08T03:04:36.99[89] refslit targets" date="1062071362" path="refslit.jpg" size="99668" user="MarkusDolensky" version="1.1"
Changed:
<
<
META FILEATTACHMENT j8hp9kfwq_flt_1_1.cat.gz attr="h" comment="" date="1062670264" path="j8hp9kfwq_flt_1_1.cat.gz" size="2798" user="MarcoLeoni" version="1.1"
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META FILEATTACHMENT j8hp9kfwq_flt_1_1.SPC.fits.gz attr="h" comment="" date="1062670301" path="j8hp9kfwq_flt_1_1.SPC.fits.gz" size="898594" user="MarcoLeoni" version="1.1"
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META FILEATTACHMENT j8hp9kfwq_flt_1.fits.gz attr="h" comment="" date="1062670611" path="j8hp9kfwq_flt_1.fits.gz" size="29654174" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4.fits.gz attr="h" comment="" date="1062670648" path="j8hp9kfwq_flt_4.fits.gz" size="29689598" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_1.cat.gz attr="h" comment="" date="1062670760" path="j8hp9kfvq_flt_1.cat.gz" size="3434" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_4.cat.gz attr="h" comment="" date="1062670777" path="j8hp9kfvq_flt_4.cat.gz" size="2868" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt.fits.gz attr="h" comment="" date="1062670840" path="j8hp9kfvq_flt.fits.gz" size="116893144" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt.fits.gz attr="h" comment="" date="1062670923" path="j8hp9kfwq_flt.fits.gz" size="116260788" user="MarcoLeoni" version="1.1"
>
>
META FILEATTACHMENT j8hp9kfwq_flt_1_1.cat.gz attr="h" comment="j8hp9kfwq_flt_1_1.cat (.gz)" date="1063195688" path="j8hp9kfwq_flt_1_1.cat.gz" size="2798" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_1.cat.gz attr="h" comment="j8hp9kfwq_flt_4_1.cat (.gz)" date="1063195793" path="j8hp9kfwq_flt_4_1.cat.gz" size="2378" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_1.SPC.fits.gz attr="h" comment="j8hp9kfwq_flt_1_1.SPC.fits (.gz)" date="1063199482" path="j8hp9kfwq_flt_1_1.SPC.fits.gz" size="898594" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_1.SPC.fits.gz attr="h" comment="j8hp9kfwq_flt_4_1.SPC.fits (.gz)" date="1063199516" path="j8hp9kfwq_flt_4_1.SPC.fits.gz" size="704047" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1.fits.gz attr="h" comment="j8hp9kfwq_flt_1.fits (.gz)" date="1063199577" path="j8hp9kfwq_flt_1.fits.gz" size="29654174" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4.fits.gz attr="h" comment="j8hp9kfwq_flt_4.fits (.gz)" date="1063199633" path="j8hp9kfwq_flt_4.fits.gz" size="29689598" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_1.cat.gz attr="h" comment="j8hp9kfvq_flt_1.cat (.gz)" date="1063199730" path="j8hp9kfvq_flt_1.cat.gz" size="3434" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_4.cat.gz attr="h" comment="j8hp9kfvq_flt_4.cat (.gz)" date="1063199761" path="j8hp9kfvq_flt_4.cat.gz" size="2868" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt.fits.gz attr="h" comment="j8hp9kfvq_flt.fits (.gz)" date="1063200569" path="j8hp9kfvq_flt.fits.gz" size="116893144" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt.fits.gz attr="h" comment="j8hp9kfwq_flt.fits (.gz)" date="1063200748" path="j8hp9kfwq_flt.fits.gz" size="116260788" user="MarcoLeoni" version="1.1"

META FILEATTACHMENT acs.sex attr="h" comment="SExtractor configuration file" date="1062674808" path="acs.sex" size="3905" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT acs.par attr="h" comment="SExtractor catalog parameters" date="1062674868" path="acs.par" size="1247" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT spexter040903.txt attr="" comment="Meeting minutes Sep. 4, 2003" date="1062688384" path="spexter040903.txt" size="2097" user="MarkusDolensky" version="1.1"
Changed:
<
<
META FILEATTACHMENT j8hp9kfvq_flt_1.fits.gz attr="h" comment="" date="1062777465" path="j8hp9kfvq_flt_1.fits.gz" size="30061035" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_4.fits.gz attr="h" comment="" date="1062777528" path="j8hp9kfvq_flt_4.fits.gz" size="30077294" user="MarcoLeoni" version="1.1"
>
>
META FILEATTACHMENT j8hp9kfvq_flt_1.fits.gz attr="h" comment="j8hp9kfvq_flt_1.fits (.gz)" date="1062777465" path="j8hp9kfvq_flt_1.fits.gz" size="30061035" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_4.fits.gz attr="h" comment="j8hp9kfvq_flt_4.fits (.gz)" date="1062777528" path="j8hp9kfvq_flt_4.fits.gz" size="30077294" user="MarcoLeoni" version="1.1"

META FILEATTACHMENT SpeXter_FORS2_nobckg.jpg attr="h" comment="FORS2 spectrum result example" date="1063012295" path="SpeXter_FORS2_nobckg.jpg" size="90969" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT SpeXter_FORS2_bckg_onoff.jpg attr="h" comment="FORS2 spectrum: with&without aXe_BE task" date="1063012410" path="SpeXter_FORS2_bckg_onoff.jpg" size="164857" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT SpeXter_FORS2_bckg_onoff_zoom.jpg attr="h" comment="FORS2 spectrum: with&without aXe_BE task (zoom)" date="1063012439" path="SpeXter_FORS2_bckg_onoff_zoom.jpg" size="113015" user="MarcoLeoni" version="1.1"
Line: 166 to 178
META FILEATTACHMENT j8hp9kfwq_flt_4_obj27.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 4 - obj. 27" date="1063033030" path="j8hp9kfwq_flt_4_obj27.jpg" size="206222" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_obj29.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 4 - obj. 29" date="1063033056" path="j8hp9kfwq_flt_4_obj29.jpg" size="190483" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_obj34.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 4 - obj. 34" date="1063033083" path="j8hp9kfwq_flt_4_obj34.jpg" size="264721" user="MarcoLeoni" version="1.1"
Added:
>
>
META FILEATTACHMENT fors2_goods8_406.JPG attr="h" comment="FORS2.2002-10-04T04:05:23.476" date="1063195980" path="fors2_goods8_406.JPG" size="93548" user="MarcoLeoni" version="1.1"

 <<O>>  Difference Topic SpeXter (r1.14 - 09 Sep 2003 - MarkusDolensky)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra


 <<O>>  Difference Topic SpeXter (r1.13 - 08 Sep 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 65 to 65
direct j8hp9kfvq_flt.fits.gz j8hp9kfvq_flt_1.fits.gz j8hp9kfvq_flt_4.fits.gz j8hp9kfvq_flt_1.cat.gz j8hp9kfvq_flt_4.cat.gz - -
grism j8hp9kfwq_flt.fits.gz j8hp9kfwq_flt_1.fits.gz j8hp9kfwq_flt_4.fits.gz j8hp9kfwq_flt_1_1.cat.gz j8hp9kfwq_flt_4_1.cat.gz j8hp9kfwq_flt_1_1.SPC.fits.gz j8hp9kfwq_flt_4_1.SPC.fits.gz
Added:
>
>		 Some images (.jpg) of the spectra
    Sc. ext. 1 - 14, 33, 40, 41, 45
    Sc. ext. 4 - 25, 27, 29, 34

FORS2

image (science/sky/mxu) slit (test/slit/image) bias2 spectrum
Line: 73 to 77

 2 Usually master bias files are used (M.FORS2.yyyy-mm-ddThh:mm:ss.mmm.fits). If no master are present, normal biases are chosen.

Spectrum example:

Changed:
<
<		     Fig. 1 shows an example of result spectrum obtained with aXe on FORS2 image (data set ID = FORS2.2002-06-08T01:56:08.677, slit ID = FORS2.2002-06-08T01:51:03.195, bias ID = M.FORS2.2002-10-23T08:45:16.541)
    In Fig. 2 there are two spectra of the same object, showing difference using/not using aXe_BE task to remove background (see a detail in Fig. 3)
>
>		     Fig. 1 shows an example of result spectrum obtained with aXe on FORS2 image ( data set ID = FORS2.2002-06-08T01:56:08.677, slit ID = FORS2.2002-06-08T01:51:03.195, bias ID = M.FORS2.2002-10-23T08:45:16.541)
    In Fig. 2 there are two spectra of the same object, showing difference using/not using aXe_BE task to remove background (see a zoom in Fig. 3)

Line: 150 to 157
META FILEATTACHMENT SpeXter_FORS2_nobckg.jpg attr="h" comment="FORS2 spectrum result example" date="1063012295" path="SpeXter_FORS2_nobckg.jpg" size="90969" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT SpeXter_FORS2_bckg_onoff.jpg attr="h" comment="FORS2 spectrum: with&without aXe_BE task" date="1063012410" path="SpeXter_FORS2_bckg_onoff.jpg" size="164857" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT SpeXter_FORS2_bckg_onoff_zoom.jpg attr="h" comment="FORS2 spectrum: with&without aXe_BE task (zoom)" date="1063012439" path="SpeXter_FORS2_bckg_onoff_zoom.jpg" size="113015" user="MarcoLeoni" version="1.1"
Added:
>
>
META FILEATTACHMENT j8hp9kfwq_flt_1_obj14.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 1 - obj. 14" date="1063032825" path="j8hp9kfwq_flt_1_obj14.jpg" size="82747" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_obj33.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 1 - obj. 33" date="1063032865" path="j8hp9kfwq_flt_1_obj33.jpg" size="93610" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_obj40.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 1 - obj. 40" date="1063032901" path="j8hp9kfwq_flt_1_obj40.jpg" size="82448" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_obj41.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 1 - obj. 41" date="1063032929" path="j8hp9kfwq_flt_1_obj41.jpg" size="79892" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_obj45.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 1 - obj. 45" date="1063032957" path="j8hp9kfwq_flt_1_obj45.jpg" size="231336" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_obj25.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 4 - obj. 25" date="1063032996" path="j8hp9kfwq_flt_4_obj25.jpg" size="226241" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_obj27.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 4 - obj. 27" date="1063033030" path="j8hp9kfwq_flt_4_obj27.jpg" size="206222" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_obj29.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 4 - obj. 29" date="1063033056" path="j8hp9kfwq_flt_4_obj29.jpg" size="190483" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_obj34.jpg attr="h" comment="j8hp9kfwq_flt - sc. ext. 4 - obj. 34" date="1063033083" path="j8hp9kfwq_flt_4_obj34.jpg" size="264721" user="MarcoLeoni" version="1.1"

 <<O>>  Difference Topic SpeXter (r1.12 - 08 Sep 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 26 to 26
  • archive request: _FLT images were used
  • IRAF: split mutli-extension fits into two files (science extensions 1 & 4)
  • aXe 1: SExtractor on direct images to get target list
Changed:
<
<
  • aXe 2: extract set of 1d spectra
>
>
  • aXe 2: extract set of 1-D spectra

  • return results (e.g. plot with Specview)

FORS2

Line: 67 to 67

FORS2

Added:
>
>
image (science/sky/mxu) slit (test/slit/image) bias2 spectrum
... ... ... ...

2 Usually master bias files are used (M.FORS2.yyyy-mm-ddThh:mm:ss.mmm.fits). If no master are present, normal biases are chosen.

Spectrum example:
    Fig. 1 shows an example of result spectrum obtained with aXe on FORS2 image (data set ID = FORS2.2002-06-08T01:56:08.677, slit ID = FORS2.2002-06-08T01:51:03.195, bias ID = M.FORS2.2002-10-23T08:45:16.541)
    In Fig. 2 there are two spectra of the same object, showing difference using/not using aXe_BE task to remove background (see a detail in Fig. 3)

Requirements

Line: 138 to 147
META FILEATTACHMENT spexter040903.txt attr="" comment="Meeting minutes Sep. 4, 2003" date="1062688384" path="spexter040903.txt" size="2097" user="MarkusDolensky" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_1.fits.gz attr="h" comment="" date="1062777465" path="j8hp9kfvq_flt_1.fits.gz" size="30061035" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_4.fits.gz attr="h" comment="" date="1062777528" path="j8hp9kfvq_flt_4.fits.gz" size="30077294" user="MarcoLeoni" version="1.1"
Added:
>
>
META FILEATTACHMENT SpeXter_FORS2_nobckg.jpg attr="h" comment="FORS2 spectrum result example" date="1063012295" path="SpeXter_FORS2_nobckg.jpg" size="90969" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT SpeXter_FORS2_bckg_onoff.jpg attr="h" comment="FORS2 spectrum: with&without aXe_BE task" date="1063012410" path="SpeXter_FORS2_bckg_onoff.jpg" size="164857" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT SpeXter_FORS2_bckg_onoff_zoom.jpg attr="h" comment="FORS2 spectrum: with&without aXe_BE task (zoom)" date="1063012439" path="SpeXter_FORS2_bckg_onoff_zoom.jpg" size="113015" user="MarcoLeoni" version="1.1"

 <<O>>  Difference Topic SpeXter (r1.11 - 05 Sep 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 62 to 62

ACS

  image sc. ext. 1 sc. ext. 4 catalog ext.1 catalog ext.4 spectrum ext.1 spectrum ext.4
Changed:
<
<
direct j8hp9kfvq_flt.fits.gz - - j8hp9kfvq_flt_1.cat.gz j8hp9kfvq_flt_4.cat.gz - -
>
>
direct j8hp9kfvq_flt.fits.gz j8hp9kfvq_flt_1.fits.gz j8hp9kfvq_flt_4.fits.gz j8hp9kfvq_flt_1.cat.gz j8hp9kfvq_flt_4.cat.gz - -

grism j8hp9kfwq_flt.fits.gz j8hp9kfwq_flt_1.fits.gz j8hp9kfwq_flt_4.fits.gz j8hp9kfwq_flt_1_1.cat.gz j8hp9kfwq_flt_4_1.cat.gz j8hp9kfwq_flt_1_1.SPC.fits.gz j8hp9kfwq_flt_4_1.SPC.fits.gz

FORS2

Line: 136 to 136
META FILEATTACHMENT acs.sex attr="h" comment="SExtractor configuration file" date="1062674808" path="acs.sex" size="3905" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT acs.par attr="h" comment="SExtractor catalog parameters" date="1062674868" path="acs.par" size="1247" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT spexter040903.txt attr="" comment="Meeting minutes Sep. 4, 2003" date="1062688384" path="spexter040903.txt" size="2097" user="MarkusDolensky" version="1.1"
Added:
>
>
META FILEATTACHMENT j8hp9kfvq_flt_1.fits.gz attr="h" comment="" date="1062777465" path="j8hp9kfvq_flt_1.fits.gz" size="30061035" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_4.fits.gz attr="h" comment="" date="1062777528" path="j8hp9kfvq_flt_4.fits.gz" size="30077294" user="MarcoLeoni" version="1.1"

 <<O>>  Difference Topic SpeXter (r1.10 - 04 Sep 2003 - MarkusDolensky)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 43 to 43

ACS

name description status
direct-grism pair files automatically pick the right files from set of archive products for aXe processing open
Added:
>
>
sextractor conf. detection sensitivity needs to be set for each frame open

FORS2

name description status
new chipset prescan, overscan, binning solved
slit positions patch in missing positions solved
out of range errors need to divide global slit list by chip to avoid them solved
Changed:
<
<
reference slits how to detect them? and should they be excluded? open
>
>
reference slits exclude targets named 'refslit' solved

background subtraction automatic? possible? necessary?1 open
1 use reference slits to get sky spectrum, then subtract it from image spectrum?
Line: 134 to 135
META FILEATTACHMENT j8hp9kfwq_flt.fits.gz attr="h" comment="" date="1062670923" path="j8hp9kfwq_flt.fits.gz" size="116260788" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT acs.sex attr="h" comment="SExtractor configuration file" date="1062674808" path="acs.sex" size="3905" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT acs.par attr="h" comment="SExtractor catalog parameters" date="1062674868" path="acs.par" size="1247" user="MarcoLeoni" version="1.1"
Added:
>
>
META FILEATTACHMENT spexter040903.txt attr="" comment="Meeting minutes Sep. 4, 2003" date="1062688384" path="spexter040903.txt" size="2097" user="MarkusDolensky" version="1.1"

 <<O>>  Difference Topic SpeXter (r1.9 - 04 Sep 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 60 to 60

ACS

Added:
>
>
  image sc. ext. 1 sc. ext. 4 catalog ext.1 catalog ext.4 spectrum ext.1 spectrum ext.4
direct j8hp9kfvq_flt.fits.gz - - j8hp9kfvq_flt_1.cat.gz j8hp9kfvq_flt_4.cat.gz - -
grism j8hp9kfwq_flt.fits.gz j8hp9kfwq_flt_1.fits.gz j8hp9kfwq_flt_4.fits.gz j8hp9kfwq_flt_1_1.cat.gz j8hp9kfwq_flt_4_1.cat.gz j8hp9kfwq_flt_1_1.SPC.fits.gz j8hp9kfwq_flt_4_1.SPC.fits.gz

FORS2

Line: 128 to 132
META FILEATTACHMENT j8hp9kfvq_flt_4.cat.gz attr="h" comment="" date="1062670777" path="j8hp9kfvq_flt_4.cat.gz" size="2868" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt.fits.gz attr="h" comment="" date="1062670840" path="j8hp9kfvq_flt.fits.gz" size="116893144" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt.fits.gz attr="h" comment="" date="1062670923" path="j8hp9kfwq_flt.fits.gz" size="116260788" user="MarcoLeoni" version="1.1"
Added:
>
>
META FILEATTACHMENT acs.sex attr="h" comment="SExtractor configuration file" date="1062674808" path="acs.sex" size="3905" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT acs.par attr="h" comment="SExtractor catalog parameters" date="1062674868" path="acs.par" size="1247" user="MarcoLeoni" version="1.1"

 <<O>>  Difference Topic SpeXter (r1.8 - 04 Sep 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 80 to 80
Changed:
<
<
>
>

Line: 118 to 118

 -->

META FILEATTACHMENT refslit.jpg attr="" comment="FORS2.2002-06-08T03:04:36.99[89] refslit targets" date="1062071362" path="refslit.jpg" size="99668" user="MarkusDolensky" version="1.1"
Added:
>
>
META FILEATTACHMENT j8hp9kfwq_flt_1_1.cat.gz attr="h" comment="" date="1062670264" path="j8hp9kfwq_flt_1_1.cat.gz" size="2798" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_1.cat.gz attr="h" comment="" date="1062670282" path="j8hp9kfwq_flt_4_1.cat.gz" size="2378" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1_1.SPC.fits.gz attr="h" comment="" date="1062670301" path="j8hp9kfwq_flt_1_1.SPC.fits.gz" size="898594" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4_1.SPC.fits.gz attr="h" comment="" date="1062670335" path="j8hp9kfwq_flt_4_1.SPC.fits.gz" size="704047" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_1.fits.gz attr="h" comment="" date="1062670611" path="j8hp9kfwq_flt_1.fits.gz" size="29654174" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt_4.fits.gz attr="h" comment="" date="1062670648" path="j8hp9kfwq_flt_4.fits.gz" size="29689598" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_1.cat.gz attr="h" comment="" date="1062670760" path="j8hp9kfvq_flt_1.cat.gz" size="3434" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt_4.cat.gz attr="h" comment="" date="1062670777" path="j8hp9kfvq_flt_4.cat.gz" size="2868" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfvq_flt.fits.gz attr="h" comment="" date="1062670840" path="j8hp9kfvq_flt.fits.gz" size="116893144" user="MarcoLeoni" version="1.1"
META FILEATTACHMENT j8hp9kfwq_flt.fits.gz attr="h" comment="" date="1062670923" path="j8hp9kfwq_flt.fits.gz" size="116260788" user="MarcoLeoni" version="1.1"

 <<O>>  Difference Topic SpeXter (r1.7 - 04 Sep 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 71 to 71
ACS        
FORS2        
Deleted:
<
<

Software

Line: 112 to 111

Changed:
<
<
>
>



<!--


 <<O>>  Difference Topic SpeXter (r1.6 - 02 Sep 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 19 to 19

Changed:
<
<

Processing Steps

>
>

Processing Steps

ACS


Deleted:
<
<
  1. ACS

    • archive request: _FLT images were used
    • IRAF: split mutli-extension fits into two files (science extensions 1 & 4)
    • aXe 1: SExtractor on direct images to get target list
    • aXe 2: extract set of 1d spectra
    • return results (e.g. plot with Specview)
Changed:
<
<
  1. FORS2
>
>

FORS2


    • archive request: raw, master bias (once), fims (once)
    • patch FITS header
    • aXe extracts set of 1d spectra
Line: 35 to 38

Changed:
<
<

Solved & Open Issues

>
>

Solved & Open Issues


Changed:
<
<
  1. ACS
>
>

ACS


name description status
direct-grism pair files automatically pick the right files from set of archive products for aXe processing open
Changed:
<
<
  1. FORS2
>
>

FORS2


name description status
new chipset prescan, overscan, binning solved
slit positions patch in missing positions solved
Line: 53 to 56

Changed:
<
<

Sample ACS Spectra

>
>

Sample Spectra


Changed:
<
<
>
>

ACS


Changed:
<
<

Sample FORS2 Spectra

>
>

FORS2


Changed:
<
<

Hardware Requirements

>
>

Requirements

Hardware


Changed:
<
<
  1. ACS
    • CPU cycles
    • data volume: input, scratch, output
    • memory
    • other
  2. FORS2
    • CPU cycles
    • data volume: input, scratch, output
    • memory
    • other
>
>
  CPU cycles data volume
input - scratch - output 		memory other
ACS        
FORS2        

Changed:
<
<

Software Requirements

>
>

Software


  • OS
    • Unix (all test were made on Solaris 8)
Added:
>
>

Changed:
<
<
>
>

  • external libraries
    • Python Scientific & Statistics libraries ()
Changed:
<
<
>
>

  • other

Changed:
<
<

Status

>
>

Status


Test pipeline of aXe for FORS2 and ACS data is being set up at ESO.

Changed:
<
<

References

>
>

References


Line: 109 to 106

Changed:
<
<

Tech. Contact

MarcoLeoni, MarkusDolensky

>
>

Tech. Contact


Added:
>
>		 MarcoLeoni, MarkusDolensky

Added:
>
>


<!--


 <<O>>  Difference Topic SpeXter (r1.5 - 02 Sep 2003 - MarcoLeoni)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Changed:
<
<
Florian Kerber (ESO), Norbert Pirzkal (ESO)
Mar. 20, 2003
>
>		 TOC: No TOC in "Avo.SpeXter"

Changed:
<
<

Motivation

>
>

Motivation


The usefulness of current large astronomical archives are limited by the fact that users have to visually inspect and pre-select spectroscopic data. This makes it difficult for archive researchers to identify specific observations which might be of interest to them. Within the context of the AVO, this fundamental limitation should be remedied.

Line: 15 to 14

It provides non-optimal but quick and robust bulk extraction and full calibration of spectra which can be used to browse the spectral content of a dataset stored in an archive. Such a capability will be a first, yet fundamental step towards successfully using spectroscopic data within the AVO.

Changed:
<
<		 Florian Kerber , Norbert Pirzkal
>
>		 Florian Kerber (ESO), Norbert Pirzkal (ESO)
Mar. 20, 2003

Processing Steps

  1. ACS
Changed:
<
<
    • archive request: ???What's calibration level of retrieved ACS grism???
    • ???
    • aXe 1: Sextractor on direct image to get target list
>
>
    • archive request: _FLT images were used
    • IRAF: split mutli-extension fits into two files (science extensions 1 & 4)
    • aXe 1: SExtractor on direct images to get target list

    • aXe 2: extract set of 1d spectra
Deleted:
<
<
    • ??? further analysis ???

    • return results (e.g. plot with Specview)
  1. FORS2
    • archive request: raw, master bias (once), fims (once)
    • patch FITS header
Deleted:
<
<
    • ???

    • aXe extracts set of 1d spectra
Deleted:
<
<
    • ??? further analysis ???

    • return results (e.g. plot with Specview)

Line: 42 to 38

Solved & Open Issues

  1. ACS
Changed:
<
<
    • automatically pick the right files from set of archive products for aXe processing (open)
    • ???
>
>
name description status
direct-grism pair files automatically pick the right files from set of archive products for aXe processing open

  1. FORS2
Changed:
<
<
    • new chipset: prescan, overscan, binning (solved)
    • slit positions: patch in missing positions (solved)
    • need to divide global slit list by chip to avoid out of range errors (solved)
    • how to detect reference slits and should they be excluded? (open)
    • background subtraction: automatic? possible? necessary? (open)
    • ???
>
>
name description status
new chipset prescan, overscan, binning solved
slit positions patch in missing positions solved
out of range errors need to divide global slit list by chip to avoid them solved
reference slits how to detect them? and should they be excluded? open
background subtraction automatic? possible? necessary?1 open
1 use reference slits to get sky spectrum, then subtract it from image spectrum?

Line: 80 to 79

Software Requirements

  • OS
Added:
>
>
    • Unix (all test were made on Solaris 8)

  • tools
Added:
>
>

  • external libraries
Added:
>
>
    • Python Scientific & Statistics libraries ()

  • other


 <<O>>  Difference Topic SpeXter (r1.4 - 02 Sep 2003 - MarkusDolensky)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 23 to 23

Processing Steps

  1. ACS
Changed:
<
<
    • archive request: calibrated?
>
>
    • archive request: ???What's calibration level of retrieved ACS grism???

    • ???
    • aXe 1: Sextractor on direct image to get target list
    • aXe 2: extract set of 1d spectra
Line: 42 to 42

Solved & Open Issues

  1. ACS
Added:
>
>
    • automatically pick the right files from set of archive products for aXe processing (open)

    • ???
  1. FORS2
    • new chipset: prescan, overscan, binning (solved)
Line: 49 to 50
    • need to divide global slit list by chip to avoid out of range errors (solved)
    • how to detect reference slits and should they be excluded? (open)
    • background subtraction: automatic? possible? necessary? (open)
Added:
>
>
    • ???


 <<O>>  Difference Topic SpeXter (r1.3 - 02 Sep 2003 - MarkusDolensky)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Line: 17 to 17

Florian Kerber , Norbert Pirzkal

Added:
>
>

Changed:
<
<
>
>

Processing Steps

  1. ACS
    • archive request: calibrated?
    • ???
    • aXe 1: Sextractor on direct image to get target list
    • aXe 2: extract set of 1d spectra
    • ??? further analysis ???
    • return results (e.g. plot with Specview)
  2. FORS2
    • archive request: raw, master bias (once), fims (once)
    • patch FITS header
    • ???
    • aXe extracts set of 1d spectra
    • ??? further analysis ???
    • return results (e.g. plot with Specview)

Solved & Open Issues

  1. ACS
    • ???
  2. FORS2
    • new chipset: prescan, overscan, binning (solved)
    • slit positions: patch in missing positions (solved)
    • need to divide global slit list by chip to avoid out of range errors (solved)
    • how to detect reference slits and should they be excluded? (open)
    • background subtraction: automatic? possible? necessary? (open)

Sample ACS Spectra

Sample FORS2 Spectra

Hardware Requirements

  1. ACS
    • CPU cycles
    • data volume: input, scratch, output
    • memory
    • other
  2. FORS2
    • CPU cycles
    • data volume: input, scratch, output
    • memory
    • other

Software Requirements

  • OS
  • tools
  • external libraries
  • other

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References


Tech. Contact

MarcoLeoni, MarkusDolensky


 <<O>>  Difference Topic SpeXter (r1.2 - 28 Aug 2003 - MarkusDolensky)

META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

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META FILEATTACHMENT refslit.jpg attr="" comment="FORS2.2002-06-08T03:04:36.99[89] refslit targets" date="1062071362" path="refslit.jpg" size="99668" user="MarkusDolensky" version="1.1"

 <<O>>  Difference Topic SpeXter (r1.1 - 27 Aug 2003 - MarkusDolensky)
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META TOPICPARENT WorkAreaOne

Spexter - On-the-fly Extraction of Spectra

Florian Kerber (ESO), Norbert Pirzkal (ESO)
Mar. 20, 2003

Motivation

The usefulness of current large astronomical archives are limited by the fact that users have to visually inspect and pre-select spectroscopic data. This makes it difficult for archive researchers to identify specific observations which might be of interest to them. Within the context of the AVO, this fundamental limitation should be remedied.

The aXe spectral extraction tool will be a starting point for an AVO spectral pre-viewer and data selection tool. This method was already successfully applied to both HST's ACS slitless spectroscopy data and to VLT's FORS2 multi-object slit spectroscopy.

It provides non-optimal but quick and robust bulk extraction and full calibration of spectra which can be used to browse the spectral content of a dataset stored in an archive. Such a capability will be a first, yet fundamental step towards successfully using spectroscopic data within the AVO.

Florian Kerber , Norbert Pirzkal

Status

Test pipeline of aXe for FORS2 and ACS data is being set up at ESO.

Tech. Contact

MarcoLeoni, MarkusDolensky

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