Status of EPICs Operations

1. Status of EPICs Operations Guillermo Buenadicha Neil Cheek MALLORCA 26/10/2006

2. SUMMARY • General XMM activities in the period • PN events • MOS events • OBSW report • Slew Survey • General description • Preparatory tests • Rev #1242 • Future activities

3. General XMM activities • Summer eclipse 2006 • From rev. #1211 to rev. #1222, 12 eclipses after perigee. • Longest eclipse duration: 59’ • No significant changes w.r.t previous eclipses, operations automatically handled from TL or time tagged TC’s. • One instrument reconfiguration after eclipse affected due to a TC failure (G/S failure).

4. General XMM activities

5. General XMM activities • OTHER ACTIVITIES • Training to MOC: One week review of Instrument Activities and Operations, (one MOC engineer per instrument) designed to provide redundant first level support in case of manpower shortage or redistribution. • DB release version 5.4 deployed in 1221 (08/08/06), mainly providing needed inputs for Slew Survey plus other fixes. • RBI clock resynchronization on rev #1173 (05/05/06), next on #1270 (16/11/06)

6. General XMM activities • Ground segment for XMM • S2K Ground system, release 9.5 under testing, ready to deploy. Should be the final version to freeze. • All ESTRACK network planned to migrate from X-25 to TCP/IP. Affects PERTH and KOUROU. Some minor impacts during testing, plus impact from KOUROU suffering maintenance. • No more regular SANTIAGO support as of 2007. Gap with no TC but with TM around apogee. Instruments radiation protection TBD. • Possible loss of KOUROU in parts of 2007 due to ULYSSES nutation control campaign. TBC strategy, STG provides redundant coverage.

7. PN OPERATIONS • PN new BRAT of 24 Kbps is now permanent, selected from the T/L or manually reconfigured if required. • RGS2 in SETUP from 1207 to 1210, due to analysis of NCR-113 (no science produce, anomaly found correlated to temperature of electronics). Impact on the gain of PN, due to electronics cool down. • TC failure in PN F0096 in rev #1214, one quadrant not responding to it and remaining in ROM version. Detected through consistency among all EPEA SW versions.

8. PN OPERATIONS • Special Tests for PN • PN Timing with modified threshold during the NRCO-63 in Omega Centauri, rev. #1227 (threshold lowered by 4 ADU to 548 without offset calculation). • Future tests for November 2006 • Lower threshold by 4 ADU in LW during RCO of OM. Offsets to be calculated with or without new value??? • NRCO-57 repeat, source PKS2155-304, SW with offsets in closed FW set to Thin-Medium-Thick  final Offsets in Thick

9. PN OPERATIONS • PN LCL failure in rev 1201, 30/06/06 • SEU opening of LCL for EPIC PN Branch A, causing loss of power to the instrument. • Thermal situation under control thanks to CDMU J CSF function and good operator and engineering responses. • MOS thermal impact due to the use of redundant heaters.

10. PN OPERATIONS LCL failure PN OFF Redundant heater off Recovery, EPDH K load PN ON,TH ctrl back CSF triggeredheaters ON Nom heater off

11. PN OPERATIONS • As a result, several procedure changes (covering cases of instrument autonomous switch-off with FW open, heater handling to minimize impact on the MOS, etc). • CDMU J CSF function triggered for second time, PN thermally safe!!! • MOS impact up to some extent, they were not stopped (science useless) but limited to 3.5 hours • Very good reaction from all sides in general

12. MOS OPERATIONS • Pinhole test in NRCO-63 (Omega Cen) • Diagnostic RPP mode • FW positions away from calibrated ones, 12 and 20 degrees from Medium to Thin-2 • Series of 5 diagnostics of CCD1, 2 and 7 • New mode for diagnostics to be executed Nov 2006 • 3 full frame for all 7 CCDs • 10 frames CCD1 SW + 1 FF peripherals with CCD1 in SW • 5 frames CCD1 LW + 1 FF peripherals with CCD1 in LW • 10 frames CCD1 TI + 1 FF peripherals with CCD1 in TI

13. Only 26 seconds!!! MOS 1 SW Rev 1159 Obs ID: 0410180301 SOURCE: RS Oph SAS, emproc Rev 1159, ID: 0410180301, RS Oph, MOS1 in SW MOS OPERATIONS • DB modifications • MOS: Correction of sequences of IDLE to avoid problems with new BRAT. The sequence handling the Go To Idle is now 200 s. long. • The new BRAT was also affecting diagnostics. The diagnostic sequences have been modified to reset 16 Kbps BRAT before and go to 12 at the end. • DB now detects through DP’s the case of HBR stuck on 25% occupancy, to prevent NCR-42

14. PENDING SW Activities No Changes!!!

15. PENDING SW ACTIVITIES • One minor ECR open (implementation of HK flagging mechanism in EPDH) • Set of MOS Clock sequences needed to cover the redundant node readout, in case of failure. To be developed by ESAC with PI support. • Some ideas for EPEA? (EK, Mallorca 2005) • Any other?

16. HLCL + OBDH + Power CCOE ISU TC + ACK/NAK + REP EGSE.log TM OTHERS EXP-COE EXT TC + ACK/NAK + REP TM TM NCTRS S2K S2K.log TC + ACK/NAK + REP DB Editors OBSW: S2K for the EGSE • Major problem is how to translate from spare environment procedures to flying unit ones and vice versa, plus how to maintain usability. • Meeting held at ESAC in Sept. to assess needs for S2K usage at EGSE. • Analysis from ESAC of data in the current EGSE and also in the S2K environment. • Several needs identified, analysis ongoing to assess cost and timescale. • T. Abbey coordinator, ESAC acts as consultant.

17. Slow Slew Survey SLEW SURVEY

18. Slow Slew Survey – Overview • New Operating Mode proposed to increase flexibility and use of XMM-Newton with respect to future Science Operations. • Full Sky Survey taking ~190 revolutions • Galactic Plane Survey taking ~15 revolutions • PN designated as prime instrument and to be used in Full Frame (Medium). • MOS to use new 3x3 binning mode (Medium). • RGS using CCD5 (Oxygen Line) and CCD9 (Soft Proton Detection) with polling sequence (55555559).

19. Slow Slew Survey – Overview (cont) • OM requires new High Time Resolution mode (RTRD) to be developed. • Feasibility testing at both Spacecraft and MOC/SOC systems level had to be completed by end September 2006. • Complete revolution (1242) dedicated for first Survey across the Galactic Centre.

20. Slow Slew Survey – Preparation • MOC perform testing of slew speeds at both 20 deg/h and 30 deg/h. The later is chosen to be used during rev 1242. • PN Offset calculation repetition rate increased to 100 to gain cleaner pixel by pixel offset values. Testing indicates no problems. Database definitions already present hence no further work required. • MOS 3x3 binning mode implemented with its reduced frame time of 0.4s in comparison to Full frame (2.7s). Initial testing performed manually during rev 1210, with relevant definitions consequently being applied in the database and re-tested during rev 1228.

21. Slow Slew Survey – Preparation (cont) • Updated Database released to support rev 1242 Survey. • Due to no proposals being available for Slew Survey, and consequently no targets, the planning could not be performed using the Proposal Handling System. This meant that a high level of manual intervention was required to produce the POS/ICP. • Rules and Constraints file used to integrate database components into planning cycle. Thereby, offering full flexibility and by passing the need for Activities.

22. Slow Slew Survey – MOS 3x3 Binning • First test during rev 1210 (CALCLOSED) was performed only on MOS-1, without any Bright Pixel masking and theoretical offset tables (TC’s manually modified). The test being performed with both 0.4s and 0.5s integration times. • Second test, to verify database entries, was performed during rev 1228 (CALCLOSED) on both MOS-1 and MOS-2. Bright Pixel Tables were derived from the 1x1 Sequences and Offsets based on results seen during rev 1210. No further changes were necessary for rev 1242. • Clock sequences used were the same as for 3x3 diagnostic. • Bandwidth remained at roughly 6kb/s during above testing. Therefore, no appreciable increase compared to 1x1 (CALCLOSED).

23. Image shows QLA interpretation (!) of MOS-2 3x3 data in Full Frame (Closed Cal) using 203 lines x 201 columns per CCD. View on right showing all CCDs in comparison to the zoomed view on the left. Slow Slew Survey – MOS 3x3 Bin. (cont)

24. Slow Slew Survey – Rev 1242 • Survey consisted of 16 Open Loop slews across the Galactic Centre each lasting around 1.5 hours at a rate of 30 deg/h with each leg being separated by 15 arcmin. A Closed Loop Slew (~17 mins) then being used to move from the end of one OLS to the start of the next. • In order to keep filter wheel movements to a minimum EPICs remained in an Medium position during all slews. • To ensure EPIC safety against radiation, RGS remained observing during both Open and Closed Loop slews thereby providing soft proton detection at all times.

25. Slow Slew Survey – Rev 1242 (cont) • MOS/PN sent to idle at end of each Open Loop Slew (FW remained in Medium) This ensured correct termination of data products for each leg. • During the Closed Loop Slew PN down-linked discarded lines. • RGS used as originally foreseen. • OM used in Image+Fast (UVM2) with reduced window size (2 windows of 22x23).

26. Slow Slew Survey – Future Activities • Super ED’s required to rejoin instruments during an Open Loop Slew, thereby removing the current constraint of re-joining at the start of the next leg (worse case loss of 1.5 hours). • Incorporate inputs from calibration team for 3x3 mode (new offsets/Bright Pixel Tables) into Database (i.e. fully commission mode). • PN observations will be extended into the Closed Loop Slews by sacrificing down-link of discarded lines. Requires new ED. • Implement strategy for reduction of manual activities required for POS/ICP Generation.