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

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TopBottomHotWarmMaps
TopBottomHotWarmMaps

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At line 1 changed one line
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. The hot/warm pixels maps are distributed with [SolarSoft|http://www.mssl.ucl.ac.uk/surf/surfsolarsoft.html] under [hinode/eis/data/cal|http://sohowww.nascom.nasa.gov/solarsoft/hinode/eis/data/] branch.
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.
At line 3 changed one line
Before EIS launch, the CCD read-out section was assumed in the __middle 512 rows__ of the CCD. That means [EIS_PREP|Eis_prep] only needs hot/warm pixels maps of middle section of CCDs. 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.
The hot/warm pixels maps are distributed with [SolarSoft|http://www.mssl.ucl.ac.uk/surf/surfsolarsoft.html] under [hinode/eis/data/cal|http://sohowww.nascom.nasa.gov/solarsoft/hinode/eis/data/] branch.
At line 5 added 4 lines
Before EIS launch, the CCD read-out section was assumed in the __middle 512 rows__ of the CCD. That means [EIS_PREP|Eis_prep] only needs hot/warm pixels maps of middle section of CCDs.
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.
At line 9 changed one line
The EIS camera electronics __do not__ readout CCD ''row 0'' in the y-direction (this is due to how the electronics work, row 0 is always discarded), so for the bottom of the CCDs EIS camera readout from row 1 to row 512 (inclusive), and for the top the camera readout from row 512 to row 1023 (inclusive). So we can see there is an overlap at the 512th row, ie.:
The EIS camera electronics __do not__ readout CCD ''row 0'' in the y-direction (this is due to how the electronics work, row 0 is always discarded), so for the bottom of the CCDs EIS camera readout from row 1 to row 512 (inclusive), and for the top the camera readout from row 512 to row 1023 (inclusive).
At line 15 added 2 lines
So we can see there is an overlap at the 512th row, ie.:
This page (revision-10) was last changed on 18-Apr-2021 19:22 by LouisaBradleyTop