Subject: JEMX Monday Meeting 2004-12-07

Present: CAO, JC, CBJ, NL, ILR, NJW

Status for JEMX: Due to the VC exercise the anode activity plot shows
      unusually high activity for the anodes through the calibration
      sources since the data from these have been included in the science
      data (normally they are transmitted in the HK data).
      
VC exercise: Voltage levels: 1120, 640, 800, 960, 1280, and 1120 V applied
      to the cathodes. First impression is that the gain varies little
      so the (cautious) conclusion is that the detector gas is OK.
      
X-ray transient: The 600 Hz pulsating transient IGR J00291+5934 will be
      difficult to analyze wrt. pulse analysis due to low intensity and
      short period with JEMX data.
      
Gain fitting during Crab calibrations: CAO: Rev. 239 shows some bad
      gain fitting periods due to interruptions and change of anode
      voltage.( See email from CAO, 2004-12-07 "BTI and bad SCWs")
      Other Crab calibration periods seem to be fitted well.

/NJW
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Niels J. Westergaard
Danish Space Research Institute
Juliane Maries Vej 30, DK 2100 Copenhagen O
Phone: +45 35 32 57 05; FAX:  +45 35 36 24 75