1. Guillermo Buenadicha SOC Operations Support Group Page 1 XMM-Newton EPIC SW Status Guillermo Buenadicha TOS/OFX, SOC Operations Support Group Palma de Mallorca, 1 st February 2005

2. Guillermo Buenadicha SOC Operations Support Group Page 2 XMM-Newton Introduction ACTIVITIES SINCE LAST TTD –SW Versions –EMDH K upload –EPIC PN Spare testing 5 YEARS OBSW, WRAP UP. –Why modifying SW? –Examples –Where are we –What’s next? OBSW Contract expiration

3. Guillermo Buenadicha SOC Operations Support Group Page 3 XMM-Newton Current SW releases

4. Guillermo Buenadicha SOC Operations Support Group Page 4 XMM-Newton EMDH K UPLOAD The EMDH K was uploaded on the 5 th of May 2004, after testing on the Spare and a prior uplink end of April. A refined version used (just SW reallocation), to avoid alarms related to boot of the EMDH Slave processor. All items for extended BP handling in place, only pending issue is the modification of the ground SW to ingest them into the relevant FITs. This will be implemented into the new S2K system. Also in place the preventive correction for the FW movement in presence of a sensor failure, and the HK flagging mechanism. Any ideas for the later???

5. Guillermo Buenadicha SOC Operations Support Group Page 5 XMM-Newton EPIC MOS: EMDH K ECR #7 After cooling in rev 533, reduction by 8 in the number of Bright Pixels. However, management still deemed necessary to cope with future increase. Preliminary analysis of options in ISS-MOS-BPT-TN-01 (July 2002). Option selected for a demonstration prototype is to increase up to 250 pixels per HBR, using a data reduction strategy in the BPT storage. The constraints in any implementation are the reduced and limited data space in the EMDH processors. The implementation chosen also impacts in the BPT uplink and report mechanisms, and the rejection procedure, although limited changes are foreseen there to maintain performance.

6. Guillermo Buenadicha SOC Operations Support Group Page 6 XMM-Newton EPIC MOS: EMDH K ECR 12 Existing logic, Safe entering Logic After EMDH K Prime sensor Closed Redun sensor Closed Ext Temp sensor < 60 deg What if FW Open, and Ext Temp broken (temp >60)??? Prime sensor Closed Redun sensor Closed Ext Temp sensor < 60 deg Check Override bit Move FW If bit set to 0, no differences w.r.t. current situation. If bit set to 1, FW will move in any case.

7. Guillermo Buenadicha SOC Operations Support Group Page 7 XMM-Newton EPIC PN SPARE TESTING EPIC PN Testing on the Spare Performed on the Panter facility on the last two weeks of Nov. 2004. LABEN, ESAC, PI’s. Purpose of it was to verify the readiness of the Spare Chain, and to upgrade it with the latest SW (EPEA 517, EPDH K, latest Ops DB procedures). Special test devoted to perform the fast dump of the offsets via HBR. Dedicated set of tools developed to support testing and data analysis. Identified the need of a warm reset in case of a CDMU crash (quite unlikely!!!). Procedure change.

8. Guillermo Buenadicha SOC Operations Support Group Page 8 XMM-Newton EPIC PN: ECR # 2 EPDH EPEA FIFO 8 Kwords HBR Buffer 40 Kwords CDMU BRAT selected: 16 Kbps for 1 quad 34 Kbps for 2 quad 25999 words (130 Words + 10 msec) * 200 >= 2 secs Up to 68000 reads per second??? PST HK 4 Science Queue 16 Packets NP 4 VC-7 TM GROUND TC F0106 Xqt_offs Dump_offset 1 packet every 250 msec.

9. Guillermo Buenadicha SOC Operations Support Group Page 9 XMM-Newton NEW OFFSET DATA STRUCTURE EPIC PN: ECR # 2 CURRENT OFFSET DATA STRUCTURE + 59 x x 216 + x 64 + x 200 Q = Quadrant Id C = CCD Id T = Table Id B = Block Id P = Pixel Status O = Offset Value S = Seconds of Offset Calculation F = Fraction of Seconds I= Pixel I coordinate J = Pixel J coordinate Q = Quadrant Id C = CCD Id O = Offset Value

10. Guillermo Buenadicha SOC Operations Support Group Page 10 XMM-Newton 5 years of SW modifications

11. Guillermo Buenadicha SOC Operations Support Group Page 11 XMM-Newton EPIC OBSW RELEASES EPEA 517EMDH I EPDH I EPDH JEMDH JEPDH K EMDH J+ EMDH K

12. Guillermo Buenadicha SOC Operations Support Group Page 12 XMM-Newton 5 years of EPIC SW EMDH  4 versions EMDH I, J, J+, K EPDH  3 versions EPDH I, J, K EPEA  1 version EPEA 517 No other units modified

13. Guillermo Buenadicha SOC Operations Support Group Page 13 XMM-Newton Reasons for SW modifications The OBSW is typically modified after launch due to 3 scenarios: Need to correct launch SW bug and to tailor the OBSW during the commissioning phase. CORRECT Fit the unit to the nominal performance and implementation of improvements. ADAPT Preparation of the instrument for an extended lifetime and prevention/correction of HW failures or degradation. PROTECT

14. Guillermo Buenadicha SOC Operations Support Group Page 14 XMM-Newton OBSW changes XMM CORRECT ADAPT PROTECT

15. Guillermo Buenadicha SOC Operations Support Group Page 15 XMM-Newton Examples EPIC: Correct  EPEA 517 NCR’s 5 and 12, Low energy noise, Image correction consistent.  EMDH I TC rejected, FW movement, Headers and trailers not matching. (NCR’s 3, 9, 14) TC rejected, FW movement, Headers and trailers not matching. (NCR’s 3, 9, 14)  EPDH I TC rejected

16. Guillermo Buenadicha SOC Operations Support Group Page 16 XMM-Newton Examples EPIC: Adapt EMDH J, J+ Internal LABEN fixes, Watchdog Function Internal LABEN fixes, Watchdog Function EPDH J Watchdog function Watchdog function EPDH K Fast dump of Offsets Fast dump of Offsets

17. Guillermo Buenadicha SOC Operations Support Group Page 17 XMM-Newton Examples EPIC: Protect CDMU J NCR 83, PN Operating heater autonomous switch off EMDH K Extended BP capability Extended BP capability Prevent possible sensor failure impacting on FW ???

18. Guillermo Buenadicha SOC Operations Support Group Page 18 XMM-Newton Where are we? After 5 years, it is time to sum up SW status and see what is needed. Several NCR’s declared as “Unresolvable”, ground W/A in place. Are we happy? Adaptations needed. –Any performance improvements? –Security issues –Do we need to monitor performance? HW failures –How to deal with them –Mission lifetime and unit specifications

19. Guillermo Buenadicha SOC Operations Support Group Page 19 XMM-Newton Unresolvable items NCR-39 PN quadrants not listening. Performance. NCR – 75 Fail to reset EPEA Time at 32400. Processor performace. NCR –99 Late start of time in EPEA. Fixed in SAS but still problem OB. Processor performace NCR-97 TC E0001 fails transmission. SW bug. NCR-100 Erroneous fine Time in the Time verification packet. SW bug. NCR –103, Corrupted events confused with time info’s. Processor performance. NCR-106 Failure of F0119 (LBR error) NCR –107 3 rows missing in MOS-2 CCD 6. Not clear.

20. Guillermo Buenadicha SOC Operations Support Group Page 20 XMM-Newton Performance and security NCR’s like 75 (EPEA time reset), 103 (FFFF words) affect quality of data, so far taken care by On Ground SW. 107 3 rows missing in MOS2 CCD6 MOS Offset??? Response of PN quadrants to TC’s TREND MONITORING?, ACTIONS?

21. Guillermo Buenadicha SOC Operations Support Group Page 21 XMM-Newton EPIC PN: Time Problems 3 Revs. 478 to 510: FAILS / EVENTS ratio

22. Guillermo Buenadicha SOC Operations Support Group Page 22 XMM-Newton HW failures, possible impact µP performance, future degradation Impact on BW and quality of the data transmitted (EPEA problems) HW failures(PN Q2 Voltage converter current out of limit, EMAE 28 volts line down). RGS ADC error. LCL trip of, NCR 83 on PN. Processor resets, radiation harness, non EDAC memories. Changes in SW variables CCD degradation or unavailability.

23. Guillermo Buenadicha SOC Operations Support Group Page 23 XMM-Newton WHAT’s NEXT? Better flagging and SW debugging? Becomes more and more important. Information on scheduled process, variable status, buffer occupation… Failures HW related? Do we know the impact of LCL failures, quadrants not working, status of redundant channels (readout nodes, units, etc)? Any preventive measure like NCR 83 or ECR 12 OB? Degradation and performance How to cope with CCD degradation. How to handle more failures or worse response from the event analyzers. New modes foreseen Is there anything expected? Old modes to be revisited? Instrument operations in reduced coverage scenario? Can we operate them with longer outage periods?

24. Guillermo Buenadicha SOC Operations Support Group Page 24 XMM-Newton OBSW Contract The OBSW contract ESA/Consortium expires mid 2005. Is the HW going to be kept? Expertise maintenance? Any foreseen activity before expiration?