Subject: JEM-X Monday Meeting 2006-03-13

Participants: CBJ, CAO, NL, NJW.

JEM-X status (CBJ):  As usual. An alert has been seen
with "hi anode reject" rate, but data from the
period seem OK.  There has been Sco X-1 observations
and somewhat increased background level. No visible hotspot.

For quicklook analysis the shadowgram displayed is (TBC)
not cleaned for hotspots. A strange lightcurve can then
be checked against the shadowgram for existence of a
(timevarying) hotspot.

A very strong short duration (1 s) burst has been seen
in JEM-X data (outside FOV) and later confirmed in SPI
ACS data (IBIS data stream was interrupted for
a short while). Also seen in Swift.

Gain situation (CAO): During revolution 410 (Sco X-1
observations) there was not enough data for the
correct gain calibration. An improved gain history
table was put on the gain web page by CAO.

Crab calibration (NL): will happen in revolution 422
(28-31/3 2006). The HV will be exercised with two
lower than nominal setting interlaced with nominal
settings.

AOB: Lightcurve check from revol. 297. NL will do that.
     (NJW) Source finding search tool 'jwfindsrc' finished
     in a preliminary version.

/NJW
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Niels J. Westergaard
Danish National Space Center
Juliane Maries Vej 30, DK 2100 Copenhagen O
Phone: +45 35325705; FAX:  +45 35362475