This page (revision-10) was last changed on 18-Apr-2021 19:22 by LouisaBradley

This page was created on 17-Oct-2008 12:33 by JianSun

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Version Date Modified Size Author Changes ... Change note
10 18-Apr-2021 19:22 5 KB LouisaBradley to previous
9 08-Jul-2010 09:47 5 KB LouisaBradley to previous | to last
8 08-Jul-2010 09:46 5 KB LouisaBradley to previous | to last
7 20-May-2010 12:08 4 KB LouisaBradley to previous | to last
6 19-May-2010 15:54 4 KB LouisaBradley to previous | to last
5 13-Aug-2009 14:28 2 KB LouisaBradley to previous | to last Comment by LouisaBradley
4 17-Oct-2008 13:08 2 KB JianSun to previous | to last
3 17-Oct-2008 12:36 2 KB JianSun to previous | to last
2 17-Oct-2008 12:35 2 KB JianSun to previous | to last
1 17-Oct-2008 12:33 2 KB JianSun to last

Page References

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TopBottomHotWarmMaps
TopBottomHotWarmMaps

Version management

Difference between version and

At line 1 added 2 lines
[{ALLOW edit EISMainUsers}]
[{ALLOW view Anonymous}]
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EIS continues calibration operation (eg. [REGCAL071|http://msslxr.mssl.ucl.ac.uk:8080/SolarB/studyeis/studydef/study_000027.def.txt]/[REGCAL072|http://msslxr.mssl.ucl.ac.uk:8080/SolarB/studyeis/studydef/study_000028.def.txt]) to generate hot and warm pixels maps for [EIS_PREP|Eis_prep] routine use: e.g. to mark the hot/warm pixel positions and smooth the values on those positions.
EIS continues calibration operation (eg. [REGCAL071|https://vsolar.mssl.ucl.ac.uk/SolarB/studyeis/studydef/study_000027.def.txt]/[REGCAL072|https://vsolar.mssl.ucl.ac.uk/SolarB/studyeis/studydef/study_000028.def.txt]) to generate hot and warm pixels maps for [EIS_PREP|Eis_prep] routine use: e.g. to mark the hot/warm pixel positions and smooth the values on those positions.
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However, in post-launch phase, the top and bottom of the CCDs were introduced to cover __whole CCDs area__ (ie. ''Y-axis: 0-1023 rows, X-axis: 0-4095 columns''). Thus hot/warm pixels maps for EIS CCDs have been generated accordingly as top and bottom maps (in detail: [REGCAL072|http://msslxr.mssl.ucl.ac.uk:8080/SolarB/studyeis/studydef/study_000028.def.txt] study for top of CCDs and [REGCAL071|http://msslxr.mssl.ucl.ac.uk:8080/SolarB/studyeis/studydef/study_000027.def.txt] study for bottom). The [EIS_PREP|Eis_prep] routine has also changed in order to use top and bottom hot/warm pixels maps.
However, in post-launch phase, the top and bottom of the CCDs were introduced to cover __whole CCDs area__ (ie. ''Y-axis: 0-1023 rows, X-axis: 0-4095 columns''). Thus hot/warm pixels maps for EIS CCDs have been generated accordingly as top and bottom maps (in detail: [REGCAL072|https://vsolar.mssl.ucl.ac.uk/SolarB/studyeis/studydef/study_000028.def.txt] study for top of CCDs and [REGCAL071|https://vsolar.mssl.ucl.ac.uk/SolarB/studyeis/studydef/study_000027.def.txt] study for bottom). The [EIS_PREP|Eis_prep] routine has also changed in order to use top and bottom hot/warm pixels maps.
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--[LouisaBradley|http://null], 13-Aug-2009
-- Louisa Bradley, 13-Aug-2009
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Following an update to the EIS reformatter software (Feb 2010) the 'recovered' data for REGCAL071 and REGCAL072 can now be used to provide hot and warm pixel maps. Previous to this change the recovered data could not be trusted as it did not appear in the correct position of the CCD. When a file is recovered it means that some of the data is missing, in the case of the REGCAL071 and REGCAL072 files (which are FULL CCD exposures) typically a CCD half will be missing, i.e. 25% of the data cannot be used. [Click here|http://msslxr.mssl.ucl.ac.uk:8080/eiswiki/attach/TopBottomHotWarmMaps/recovered_regcal072_11May2010.pdf] to see images from a recovered REGCAL072 file. The remaining 75% of the data can be used and is processed as normal.
Following an update to the EIS reformatter software (Feb 2010) the 'recovered' data for REGCAL071 and REGCAL072 can now be used to provide hot and warm pixel maps. Previous to this change the recovered data could not be trusted as it did not appear in the correct position of the CCD. When a file is recovered it means that some of the data is missing, in the case of the REGCAL071 and REGCAL072 files (which are FULL CCD exposures) typically a CCD half will be missing, i.e. 25% of the data cannot be used. [Click here|https://vsolar.mssl.ucl.ac.uk/eiswiki/attach/TopBottomHotWarmMaps/recovered_regcal072_11May2010.pdf] to see images from a recovered REGCAL072 file. The remaining 75% of the data can be used and is processed as normal.
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--[LouisaBradley|http://null], 19-May-2010
-- Louisa Bradley, 19-May-2010
----
__Hot and warm pixel maps for 06 June 2010__
The hot and warm pixel maps for 06 June 2010 were replaced on 07 July 2010. The original maps were from rescued data and CCDA left was missing. The new maps are a complete set (the reformatter had a little hiccup on 06 June and some files had to be reformatted again). There is also now maps for the top CCD rows where as previously the maps were for the bottom CCD rows only.
If you have run eis_prep on data from 04-09 June 2010 it might be worth re-running it so that eis_prep finds the updated maps.
-- Louisa Bradley, 08-July-2010
This page (revision-10) was last changed on 18-Apr-2021 19:22 by LouisaBradleyTop