XMM-Newton Status of EPIC Operations Guillermo Buenadicha & Pedro Calderón Mallorca 8-April-2008.

XMM-NewtonXMM-Newton

Status of EPIC OperationsStatus of EPIC Operations

Guillermo Buenadicha & Guillermo Buenadicha &

Pedro CalderónPedro Calderón

Mallorca 8-April-2008Mallorca 8-April-2008

G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group


8 Apr 2008 Pag. 2

OverviewOverview

Routine operationsRoutine operations New DB itemsNew DB items Nominal OCR operationsNominal OCR operations Not nominal eventsNot nominal events AOB’sAOB’s



8 Apr 2008 Pag. 3

Routine OperationsRoutine Operations

RBI clock resync every ~194 daysRBI clock resync every ~194 days– Last on December 10Last on December 10th th 2007, next on June 212007, next on June 21stst..

Eclipse season fully nominal.Eclipse season fully nominal.– Almost everything performed automatically by timeline.Almost everything performed automatically by timeline.– Extra heating event happened because of human error Extra heating event happened because of human error

on operations due to being in eclipse season, but not due on operations due to being in eclipse season, but not due to the eclipse itself.to the eclipse itself.

– Moon eclipse on 06/04/08 (last Sunday…) requiring to Moon eclipse on 06/04/08 (last Sunday…) requiring to manually uplink the automatic commanding due to manually uplink the automatic commanding due to limited time available before perigee.limited time available before perigee.

Other than this, not badOther than this, not bad



8 Apr 2008 Pag. 4

New ODB 5.9New ODB 5.9

Released on 17Released on 17thth March March Includes (at instrument level):Includes (at instrument level):

– Refinements to avoid possible repeat of the extra heating Refinements to avoid possible repeat of the extra heating eventevent

– New hot stuff for MOS and PN (Bright Pixels)New hot stuff for MOS and PN (Bright Pixels)– Sequences for MOS 3x3 offset calculationSequences for MOS 3x3 offset calculation– Updated PN offset Activity (needed for mosaic)Updated PN offset Activity (needed for mosaic)– New Activity for PN Mosaic observation mode (with New Activity for PN Mosaic observation mode (with

CLOSE offset calculation followed by FW selection for CLOSE offset calculation followed by FW selection for OBS)OBS)

First fully planned revolution at SOC shall be First fully planned revolution at SOC shall be 1530, however some items (MOS) have been 1530, however some items (MOS) have been taken from 1520 (timeline at MOC)taken from 1520 (timeline at MOC)



8 Apr 2008 Pag. 5

New Hot StuffNew Hot Stuff

New versions of the MOS Bright Pixel TablesNew versions of the MOS Bright Pixel Tables– Now at version V10Now at version V10– Numbers still well within the limit of 50 per CCDNumbers still well within the limit of 50 per CCD– Checking derived parameter upgradedChecking derived parameter upgraded

New versions of the PN Bad Pixel TablesNew versions of the PN Bad Pixel Tables– Further reduction of the bright 64 column in CCD 11Further reduction of the bright 64 column in CCD 11

Changes in place since Rev 1515 (March 17Changes in place since Rev 1515 (March 17thth ) but ) but they will be not in full use until Rev 1530 (April they will be not in full use until Rev 1530 (April 1616thth) for PN, and 1520 for MOS.) for PN, and 1520 for MOS.



8 Apr 2008 Pag. 6

PN MOSAIC observation modePN MOSAIC observation mode

General idea:– Calculate the offset tables in slow

mode (100 repetitions) and with the FW=Closed

– Then observe continuously (with the requested filter) when the S/C moves from a pointing of the mosaic to the next one, and so on.

Will be offered in AO-8 (August this year).

The other instruments do not need operational modifications, impact only at Mission Planning level.

OBS MODE FW X

OFFSET FW CLOSE

OBS MODE FW X

OFFSET FW X

OBS MODE FW X

OFFSET FW X

OBS MODE FW X

OFFSET FW X



8 Apr 2008 Pag. 7

Last check of MOS1 CCD6Last check of MOS1 CCD6

Agreement from Cal Meeting Oct 2006 to execute Agreement from Cal Meeting Oct 2006 to execute a CCD-6 health check periodically every 6 monthsa CCD-6 health check periodically every 6 months

Last check performed on February 22Last check performed on February 22th th 20082008 The operation was quick and easy (ad hoc Event The operation was quick and easy (ad hoc Event

Designator created in DB since March 2007)Designator created in DB since March 2007) No changes in results (still full of No changes in results (still full of AFFAAFFA hex events) hex events) Furthermore: We even tried with a non foreseen Furthermore: We even tried with a non foreseen

pseudo extraheating that did not resurrect broken pseudo extraheating that did not resurrect broken CCD (surprised ???)… we’ll keep on trying…CCD (surprised ???)… we’ll keep on trying…

AAnthonynthonyFFAFFAbbeybbey



8 Apr 2008 Pag. 8

CCD6 image from SOCCCD6 image from SOC



8 Apr 2008 Pag. 9

CCD6 data from MOCCCD6 data from MOCObtained using LELA

LELA has capabilities to monitor in Real Time the science data, but no archive or retrieval mechanisms



8 Apr 2008 Pag. 10

MOS noise reduction testMOS noise reduction test

MOS low energy noise suppression tests were performed in revolutions 1453 and 1470 (16th Nov and 18th Dec).

Closing action from last Calibration from Meeting @Peguera November 2007

VID voltage of MOS-1 CCD2, MOS-1 CCD4, MOS-2 CD2, and MOS-2 CCD5 were raised from the nominal 20V to 25V.

A Cal_Closed exposure was taken under this settings.

Looks like there is no improvement after data analysis (M. Stuhlinger).



8 Apr 2008 Pag. 11

Unintended “Extra” HeatingUnintended “Extra” Heating

On 27th January, just at the end of the last eclipse of the season, the EPIC CCD substitution heaters switch-OFF telecommand failed at ground (software problem, understood and now solved)

The operator did not realised the impact, and did not reissued the TC.

Also, reaction to subsequent triggering alarm was not adecuate

Both CCD substitution heaters (A + B) were ON along 4 hours affecting all three EPIC cameras

Maximum temps: PN –52 °C, MOS –75 °C Looks like no impact was seen in subsequent CAL

observations



8 Apr 2008 Pag. 12

Unintended “Extra” HeatingUnintended “Extra” Heating



8 Apr 2008 Pag. 13

MOS into radiation, rev 1519MOS into radiation, rev 1519

On 26/03/08 LELA system was not receiving TM due to a misconfiguration of system

No alarm raised. LELA is now source for radiation parameters based on instrument inputs– 19:01 z EDS001 / KDS001 went OOL (seen

only at SOC the day after)– 19:32 parameter FD103 HL (MOC

calculated) – 22:35 z Radmon alert– 3.5 hours impact

NCR-VIL-131 raised to cover it LELA now connected to MCS system, task

in XMCS detects if LELA stops issuing data (granularity 1 minute)

OOL Xref table upgraded to become even more robust and close MOS in case of PN closure for FD103 (HL) or FD131 (HH)

NCTRS-A NCTRS-B

LELA XMCS



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MOS 3x3 OFFSET MOS 3x3 OFFSET Test on 19th March, once the new ODB was available Aim was to perform an offset calculation On Board by MOS

instruments with settings set for 3x3 mode, followed by an small observation making use of the offsets derived.

Last offset calculation performed in 2000, and was 1x1 !!! The current available 3x3 offsets were theoretically derived

by T. Abbey back in 2006 2 problems (believed uncorrelated) found:

– MOS-1 offset patch from ground failed– understood, wrong TC used not allowed in IDLE mode. – A new DB is required in order to allow for one. – Offsets were calculated and sent to ground for all CCD’s,

data under analysis.– MOS-2 failed the offset calculation on CCD-1 (first one to

be called).– Seems a controlled failure (event report sent to ground)– no further activity performed.



8 Apr 2008 Pag. 17

Anomalous image in MOS 2Anomalous image in MOS 2 MOS2 show an anomalous MOS2 show an anomalous

image when observing into image when observing into a slew in Full Frame mode, a slew in Full Frame mode, and with the filter wheel in and with the filter wheel in Cal Close positionCal Close position. PN . PN show a bright source at show a bright source at almost the same time, when almost the same time, when observing with FW=Medium observing with FW=Medium (EFF). MOS1 saw nothing (EFF). MOS1 saw nothing unusual with FW = Cal unusual with FW = Cal Close. The telemetry show a Close. The telemetry show a singly different time singly different time distribution for MOS1 and distribution for MOS1 and PN events (see PN events (see APID_Statistics). APID_Statistics).

Problem is… Why on MOS-2 Problem is… Why on MOS-2 and not MOS-1? Why so long and not MOS-1? Why so long period transmitting data period transmitting data (not compatible with slew (not compatible with slew FoV transit?)FoV transit?)



8 Apr 2008 Pag. 18

Anomalous image in MOS 2Anomalous image in MOS 2Analysis of the first minute of data

Light curve shows 3 chunks of data, with two holes

Consistent with information from counting mode

09:17:09 to 09:17:25 (16 seconds) 09:17:49 to 09:18:09 (21 seconds)

Pattern analysis points to 31, Optical…

Removal of pattern 31

Strong optical sources? YES, Canopus…

See it in PN FOV…M. Stuhlinger, R. Saxton, M. Guanazzi



8 Apr 2008 Pag. 19

Anomalous image in MOS 2Anomalous image in MOS 2What happened?2008.056.09.14.32 CMD F0003 PN OBS

2008.056.09.14.59 CMD EU046 WD M1

2008.056.09.15.09 CMD E0049 FW PWR ON

2008.056.09.15.09 CMD KU046 WD M1

2008.056.09.15.14 CMD E0085 FW TO CLS CL

2008.056.09.15.29 CMD K0049 FW PWR ON

2008.056.09.15.34 CMD K0085 FW TO CLS CL

2008.056.09.16.14 CMD E0050 FW PWR OF

2008.056.09.16.19 CMD E0031 LOAD HBR

2008.056.09.16.24 CMD E0037 REP HBR

2008.056.09.16.29 CMD E0081 STOP SEQ

2008.056.09.16.34 CMD K0050 FW PWR OF

2008.056.09.16.39 CMD E0003 M1 OBS

2008.056.09.16.39 CMD K0031 LOAD HBR

2008.056.09.16.44 CMD K0037 REP HBR

2008.056.09.16.49 CMD K0081 STOP SEQ

2008.056.09.16.59 CMD K0003 M2 OBS

M. Stuhlinger



8 Apr 2008 Pag. 20

Anomalous image in MOS 2Anomalous image in MOS 2

8 Kwords

48 Kwords

Pinhole in the CLOSE filter

Light entering through Cal Hole

Light collected during FW movement in open filter positions and transmitted only after Enter Obs

How is it possible to produce two counting periods?

Where is all the data archived??? Size of buffers, including FIFO…

Why just CCD 1??? Is the slew time compatible with this???

What is more fun. Enter OBS should reset the 8 Kwords FIFO, thus leading to no data up the chain. Also pointers in HBR should be reset

Why is the CCD-1 data starting on frame 11?

What now?

Redefine the sequencer strategy during FW movement?

Screen for data for other similar events?

Does it affect start of exposure only in slews? Slew survey.

1 event = 6 words

Around 7000 events

transmitted

Counting accounts for

10000!!!

1 CCD slew 7 seconds

XMM-Newton Status of EPIC Operations Guillermo Buenadicha & Pedro Calderón Mallorca 8-April-2008.

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Transcript of XMM-Newton Status of EPIC Operations Guillermo Buenadicha & Pedro Calderón Mallorca 8-April-2008.