JEM-X MONDAY MEETING #55: 2/5/2005
	
SUMMARY
	Instrument status: ISDC connections working very slowly for ftp. HV has
		been set down one step. Long hotspot found by CBJ has 
		disappeared again. Gain decreased by about 11% at beginning of
		rev. 311. 10.21% gain resolution for HV=78 (old value)
		10.36% gain resolution for HV=77 (new, current value since 311)
	OSA 5.0: j_ima_iros delivered to ISDC. No sign when OSA 5.0 release
		will be - should be before summer hols. SDAST meeting clashes
		with grand opening of DNSC. Ubertini would like to hold a
		joint consortium meeting, probably also in June.
	Observations: Have observed ginga source GS 1843+009 but only one 
		pointing in JEM-X FCFOV, rev. 308 pid=63. Hard spectrum with
		about 10mCrab below 10 keV, rising towards 20 keV.
		Silvia has looked at Scutum observations and found several
		known sources. Had an unconfirmed GRB in scutum are during
		rev. 308, part of GPS. 
	Crab calibration: NL has put all 19 shadowgrams from the fine dither
		on top of each other, to give detector illumination and
		subtracted his back projection model. Radial flower structure,
		with 3-fold rotational symmetry can clearly be seen. Also see
		a dark inner ring that could be mask support structure. Ratio
		of obs/model shows collimator modulation and effect of dead
		anodes.
	Swift has been up a few months and seen lots of GRBs but they are
		very faint at optical frequencies, so could be `dark bursts'.
	Nyborg meeting: NL and JC have sent abstracts, and SB intends to do so
		too.