OSIRIS Full Team Meeting Welcome, Introduction, Logistics Holger Sierks Max-Planck-Institut für Sonnensystemforschung sierks@mps.mpg.de

OSIRIS - Scientific Camera System NAC – Narrow Angle Camera FOV 2.2°, IFOV 18.6 µrad/px SiC, 2k x 2k BI E2V CCD, AB 3-mirror off-axis, f/8, 717mm WAC – Wide Angle Camera FOV 12°, IFOV 101 µrad/px Al bench, 2k x 2k BI E2V CCD, AB 2-mirror off-axis, f/5.6, 140mm plus 3 E-Boxes (35.6 kg total) 22 % of Rosetta p/l

Overview OSIRIS: 15.5 months of prime mission by now in operation 6 months to end of nominal mission (at 2 AU outbound), mission 9 months extended OSIRIS is healthy and in good shape (fingers crossed) Statistics: 13.800 NAC images, 15.651 WAC images taken since 20 March 2014 Door cycles per camera: NAC 3.040, WAC 4.050 door open time: NAC total of 5 days 11:22h; WAC total of 12 days 02:10h Filter-wheel moves to date: NAC 36.459, WAC 40.452 (filter-to-filter changes) OSIRIS cameras are at 2/3 of the lifetime usage (wrt consumables) 3 Science papers, 18+ A&A papers, 1+1 Nature paper, working A&A wave 2 Intensify x-team interaction on science planning, campaigns, & science data analysis Need to go close for detection and monitoring of surface changes, link to activity Issues: NAC curtains, WAC shut down, memory overruns, doors, filter wheel WAC Need to find out about dust on mirrors! Calibration issues: stray light infield, out-of-field, deconvolution algorithm worked Team at its limits on planning and data verification

Technical Issues Open NCRs: #229 NAC CRB HK out of limits for one short phase #230 OSIRIS requested LCL off by PCM HK limit violation #231 WAC door failure in closing (2 by now) #232 NAC door failure in closing #233 WAC Filter Wheel #1 position readout and / shutters NAC & WAC (parameter/performance tunes) / memory overruns (o/b software issue on compression, queuing)

NAC Curtains February and May 2015: Total of 36 images

WAC Unlocking Errors > 500 errors in April/May (STP053-055), -> 1 week shut down

Logistics Meeting is 2.5 days Team dinner: Reservation in Sambesi on Wednesday at 20:00 (Dutch treat) Support: Fee von Saltzwedel, ext. 267 Note Rosetta SWT #42 14-18 September 2015 @ MPS

SWT #42 @ MPS Göttingen 14-18 September 2015

Backup

Lifetime Limits shutter doors filter wheels qualification: 100.000 activations good for 30.000 activation in flight   doors qualification: 10.000 cycles good for 5.000 door cycles in flight filter wheels qualification: 200.000 filter to filter moves good for 100.000 filter to filter moves in flight