Subject: JEMX Monday Meeting 2004-10-25

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

Status for JEMX:
     SB: JMX1 gain evolution is increase of 1% in 8.6 days.
     Nominal HV decreased with one step around Rev. 245 (CAO will update
     page with changes in beginning of November).
     
     A web page for JEMX status: During the latest chat Peter Kretschmar
     suggested the JEMX team to make and maintain a web page with current
     status of the instrument(s), mainly for the operators now that
     the presence of JEMX team in ISDC will be reduced.
     SB was appointed as responsible and the content will be:
              Anodestatus (map or other graphical representation)
              List of sources known to cause high variability
              Telephone numbers
     Later other information can be added as the need arises.
     
Disk situation: The large disk with JEMX and other INTEGRAL data is running
     full. Eventually we will only keep a copy of the revision 2 consolidated
     data. We will continue to download NRT data for quick analysis but
     remove them when rev_2 data are available.
     The internal disk of lin6 should only be used for analysis and long
     time storage transferred to /r6/jemx
     
Perseus: NL: The interesting high energy features turned out to have origin
     in the enhanced background at the edge of the detector. The fact that
     this was a staring observation made this confusion possible.
     Another outcome
     of the analysis carried out is the need for a revision of the pixel
     redistribution (also called pixel_fold) as measured during the Ferrara
     campaign.

AO3: A proposal is being composed.

GRB meeting: SGR1806 bursts seen in JEMX on the average contain so many
     counts that a detailed spectral analysis is not possible but the
     general shape of the spectra should be obtainable.

/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