SDAST Monday Meeting #135: 10th April 2007 Instrument Status: CBJ seen hotspot activity on 8th April: one weakish spot that disappeared very quickly and a stripe that exhibited clear charge/discharge behaviour. Both have disappeared now. Hotspot activity occurred during TOO observations on SGRs and high countrates could be cause of extra charging. JC couldn't do NJW's data downloads for revolutions 545, 546, 547. NJW comes home from holiday next Tuesday. ISWT/IUG meetings: Mission extension beyond 2010? ISWT should be closed down now Core Program is ended. Worries that INTEGRAL appears like a closed PI mission and not a real observatory mission, could affect chances of extension. Big changes at ESTEC (Tony Peacock etc. left): high energy astrophysics losing it's high profile/status. SPC (November) decided not to fund some projects already up with completed studies. ESA must decide how to split budget between XMM and INTEGRAL. Operations for these two missions to merge next year to save money. Funding till 2010 more or less certain. Mission Extension Operations Review (MEOR) 7-8th May: project must show that operations will continue to work sufficiently well to merit an extension. INTEGRAL's 5th birthday in October. Ubertini to organise small workshop for this occassion and will need lots of good science results. Crab Calibration: How do spectra really look? Cross calibration with XMM. Absolute peak timing differs between JEM-X and ISGRI data needs to be looked at. This amounts to about 200 muSecs. Could it be timing jitter? Sunayev presented russian view of garanteed time. Not much room for discussion since rules are so clear. Russians want no KP data, so actual Open Time available is now very small (25-30%) which limits our observatory mission status. In new AO 6 Msecs is for Key Programs, 6 Msecs for russians, and 11-12 Msecs for Open Time. No competing gamma-ray missions so we have more individual users than XMM, which might count in our favour. RW showed data on how Crab position varies with temperature due to mask distortions. ISGRI have lost 2 detectors in all. No one suggested to close down PicSiT yet, but telemetry budget is working well. MEOR to be presented 27-28th April and discussed 8-9th May. ISDC Consortium Meeting: NL to attend on behalf of JEM-X. Working on new deadtime corrections for OSA 6.1. NL should also mention CBJ's method being implemented with Stephane at ISDC. AO5: JC to send two proposals to 2 different KPs, which will be same project, but two different source lists. SB could propose to analyse KP proposal data with new burst detection software only available to JEM-X team. Science Results: SB found a big burst from SGR1806-20 which unfortunately hit count ceiling and gave lots of buffer loss. Double sharp peaks lasted about 1/2 second together: starquake magnetar with after shock. CAO 16/4/2007