Gain Notes for Revolution 467
	
JEM-X1: Another delicate revolution affected by the combination of as very
strong source in the FOV, grey filtering and a weak calibration source
(#4, purple/orange). See notes for revolution 410 for a full description of
this problem. If you have ANY questions
about how to use an IC gain history file or how best to process this data,
contact me at oxborrow@spacecenter.dk.

This problem is now fixed by using OSA 6.0 and later versions. The corrected
gain history table, with the outlying points corrected, is delivered to ISDC
as an instrument characteristics (IC) file. The analysis scripts can find these
IC files if one exists for a particular revolution, and use it instead of the
automatically generated file. If you don't have OSA 6.0 installed, or do not
have the latest IC files use the following quick fix. The results shown here
without the label `uncorrected' have been derived using the IC gain history.

The Xe analysis shows that the gain calibration produces energies with a tendancy
to be a little higher than they should be. Average Xe position is 29.96 keV
compared to the ideal value of 29.6 keV. However for most of the revolution the
line position is within about 3% of the ideal value, which is a reasonable
result.

QUICK FIX: Download the corrected gain history table that has all the source
four outliers removed. This is to be found in column `Other data and results' of
the table containing these notes. Put the file in your own private directory 
say <myDir>, and unzip it (gzip -d JMX1_gainHistoryIC_rev0467_001.fits.gz).
When you run the OSA GUI you must correct the hidden parameter gainHist so that
it points the the corrected gain history table:

COR_gainHist = <path to myDir/<myDir>/JMX1_gainHistoryIC_rev0467_001.fits[JMX1-GAIN-OCL,1]



JEM-X2: No scientific data or gain history for this unit.

CAO 30/8/2007