2014-2015 tgain updates
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avikhlinin
Apr 25, 2016, 10:33:38 AM4/25/16
to chandra-av
Hi CHAV friends,
Tgain calibration in the chav distribtuion has not been updated since August 2014. I've just uploaded a set of files which make the calibration current through 2016-02:
http://hea-www.cfa.harvard.edu/~alexey/CHAV/tgain/
Please note what you currently have (look inside $CH/CAL/tgain) and upload the newer calibration files.
If you use the process_acis_data GUI or process_lev1_data_exe scripts, or your equivalent, then you will need to reprocess observations taken after the validity date of your current set of tgain files (i.e., the date in the name of the last tgain file + 3 month). Tgain evolution has been mild, but still it's best to reprocess.
If you use CIAO processing to get cleaned lev2 data, no action is required.
Best,
Alexey
Tgain calibration in the chav distribtuion has not been updated since August 2014. I've just uploaded a set of files which make the calibration current through 2016-02:
http://hea-www.cfa.harvard.edu/~alexey/CHAV/tgain/
Please note what you currently have (look inside $CH/CAL/tgain) and upload the newer calibration files.
If you use the process_acis_data GUI or process_lev1_data_exe scripts, or your equivalent, then you will need to reprocess observations taken after the validity date of your current set of tgain files (i.e., the date in the name of the last tgain file + 3 month). Tgain evolution has been mild, but still it's best to reprocess.
If you use CIAO processing to get cleaned lev2 data, no action is required.
Best,
Alexey
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