Subject: JEMX Monday Meeting - just for the record

2005-10-03
Present: SB, JC, NL, CAO, CBJ, ILR, NJW

Status for JEM-X instruments (NL): The hotspot has increased to 4
            cts/s on average in revol 362
            We will follow it to see if a better rejection should be
            investigated.
            Check parameters for j_cor_position to see if threshold
            for rejection can be optimized.
            The test of the setting must be done on data from revol
            362, but data in category 'survey' exist.

Next Crab calibration (NL): Our wishes are built into the present
            observation plan to be carried out in
            revolution 365. 15+15 TM packets will be available in the
            JEM-X pointing period.
            The 'TEST' format will also be tested.
            OMC flatfield (later): 7 HV settings for JMX1. For JMX2
            the 22 keV will be brought into
            the PHA range where the 6 keV usually is found. We expect
            to get a much improved uderstanding
            of the behaviour near the electronic lower threshold.

Status for software and parameter update (NL):
            Recapitulation of spectral sensitivity investigations
            (submeeting at 11:00 Tuesday).
            SDAST meeting action: How can we get the background
            spectrum displayed at ISDC under OSM
            in a standard way. The other action is how to make the
            production of an approved gain history
            table. First we should specify our concrete requirements
            for such a file (or system). SB will
            start this process.

            BPL update for JMX2 and new positions from j_ima_iros (NL
            & NJW): The new parameter set gives
            better agreement between positions from SRCL-RES and peak
            Gauss fitting and better agreement
            between found position and catalog position for the Crab
            in revolution 239. This will continue for JMX1.

GX 3+1 work (JC): Curve with luminosity, temperature and apparent
radius as functions of time was presented.

ISDC consortium meeting (NL): A lot of thinking on what to do in ISDC
            after INTEGRAL. Our main interest is
            Planck on the software side. For XEUS we are mostly
            hardware involved.
            NL and NJW will go there.

/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