MTA Monitoring Report 09/10/10 - 09/16/10

Archive of all weekly reports
Archive of monthly reports

Due to a scheduled power outage at 60 Garden St., the HEAD mail and web servers will be down from 1700 EDT Sept 17 until 0700 EDT Sept 19.
Please use the backup M&TA portal to access the Chandra Snapshot during this period:
http://asc1.cfa.harvard.edu/mta/Snap/snarc.html
Alert generation will remain active during this period through backup processes at the OCC.

Radiation

Quiet.

Detrended CTI

Although we have quoted CTI values of the cleanest data (FT <= -119.7 C, int time > 7000sec), the data fills these conditions are getting rare. We quote CTI temperature factor corrected ones. The values in the parentheses are CTI based on the cleanest data.

Average of ACIS-I CCDs (MnKa) slope:	1.530e-9 CTI/day	(1.269e-9 CTI/day)
Detrended slope:	7.426e-9 CTI/day	(7.274e-9 CTI/day)

ACIS Warm Pixels

We display all bad pixels showed up in past, and, if any, previously unknown bad pixels appeared in the last 14 days. We also list hot pixels (defined as 1000 above the average of bias background). Warm columns 509-514 are probably due to a computational artificial effect due to boundaries.

	CCD0	CCD1	CCD2	CCD3	CCD4	CCD5	CCD6	CCD7	CCD8	CCD9
Previously Unknown Bad Pixels
Current Warm Pixels			(206,757) (526,66) (726,537)		(227,467) (247,364)	(233,321) (233,322) (233,323) (233,325) (233,326) (233,327) (233,324) (258,797) (263,317) (280,313) (282,385) (352,544) (367,511) (369,376) (669,577)	(843,420)		(182,474) (829,997) (833,325) (881,53)	(636,819)
Flickering Warm Pixels	(153,205)	(802,665) (910,239)	(206,757) (526,66)	(334,88) (703,739) (931,553)		(745,313) (233,315) (1023,166) (233,328)	(884,31)	(199,678) (335,412) (662,995) (638,65)	(913,165) (139,109) (197,241) (587,544) (356,902) (1024,454) (1024,455)	(40,49) (991,128)
Current Hot Pixels
Flickering Hot Pixels
Warm column candidates
Flickering Warm Column Candidates	509 518		509 514 1021			509 514 1021	518 517		514 1021	509

ACIS Focal Plane Temperature

For this period, 3 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
253.67	-113.73	0.22
257.22	-118.62	1.02
259.03	-115.19	0.19

Weekly focal plane temperature with sun angle, earth angle, and altitude overplotted. Sun angle is the solar array angle, that is the angle between the sun and the optical axis (+X axis). The earth angle is the angle between earth and the ACIS radiator (+Z axis). Altitude varies from 34 kkm to 128 kkm.

SIM Movements

10 TSC moves this period

weekly average time/step	0.00133 s
mission average time/step	0.00134 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	09/10/10	09/11/10	09/12/10	09/13/10	09/14/10	09/15/10	09/16/10	yellow limits (lower) upper	red limits (lower) upper	Units	Description
5EPHINT	317.71	324.91	324.44	322.57	321.16	323.97	322.57	(261.0) 300.0	(258.0) 303.0	K	EPHIN
HKEBOXTEMP	322.97	329.78	328.96	327.38	325.85	328.16	327.38	(268.0) 308.0	(253.0) 343.0	K	EPHIN HOUSEKEEPING EBOX: TEMPERATURE (5EHSE300)
HKFBIASLEAKI	3.69	4.88	4.88	4.88	4.57	4.88	4.88	(-100.0) 2.0	(-200.0) 3.0	uA	EPHIN HOUSEKEEPING F-BIAS: LEAKAGE CURRENT (5EHSE900)
TEIO	338.70	343.41	343.41			343.41	341.84	(253.0) 320.2	(250.2) 323.0	K	EPHIN ELECTRONICS HOUSING TEMP
TEPHIN	318.59	326.60	325.54	321.30	321.30	324.48	324.48	(260.8) 300.2	(258.0) 303.0	K	EPHIN SENSOR HOUSING
LLDIALV	163.00	163.00	163.00	163.00	163.00	163.00	163.00	(130.0) 132.0	(129.0) 133.0		Lower level disc setting
3RCTUBPT	297.48							(234.1) 276.3	(231.6) 278.8	K	RCTU BASEPLATE
TFSSBKT1	351.03	353.42	353.42			353.42	353.42	(233.0) 345.2	(223.0) 348.0	K	FSS BRACKET-1 TEMP
TFSSBKT2	351.03	353.42	353.42			353.42	353.42	(233.0) 345.2	(223.0) 348.0	K	FSS BRACKET-2 TEMP
4RT577T		292.52	292.21					(281.9) 292.0	(250.2) 308.0	K	RT 577 - OB CONE TEMP
4RT584T	290.52	291.03	291.03	291.03	290.52	290.52	290.52	(281.9) 290.0	(250.2) 308.0	K	RT 584 - STRUT TEMP
4RT591T	292.31	292.82	292.82					(281.9) 292.0	(250.2) 308.0	K	RT 591 - STRUT TEMP
4RT710T		288.83	288.83	288.83				(281.9) 288.6	(250.2) 308.0	K	RT 710 - OB BULKHEAD TEMP
4RT711T		289.13	288.83	288.83				(281.9) 288.6	(250.2) 308.0	K	RT 711 - OB BULKHEAD TEMP
OOBTHR04	290.29	290.81	290.86	290.77	290.25	290.38	290.38	(281.9) 290.0	(250.2) 308.0	K	RT 27: HRMA STRUT
OOBTHR05	290.54	291.06	291.10	290.97	290.45	290.54	290.58	(281.9) 290.0	(250.2) 308.0	K	RT 28: HRMA STRUT
OOBTHR45		292.99	292.99	292.64		292.55	292.73	(281.9) 292.0	(250.2) 308.0	K	RT 67: TFTE COVER
OOBTHR52		292.19	292.36					(281.9) 292.0	(250.2) 308.0	K	RT 78: S/C STRUT
OOBTHR56		296.51	296.42	295.08	295.08	296.07	296.51	(281.9) 295.0	(250.2) 308.0	K	RT 158: OBA CONE

Pitch Angle	60 - 75	75 - 90	90 - 110	110 - 130	130 - 145

Pitch Angle	60 - 75	75 - 90	90 - 110	110 - 130	130 - 145
TFSSBKT1	346.7	346.7	346.7	344.3	342.4
TFSSBKT2	348.6	348.6	346.7	344.1	341.3
TEPHIN	314.5	322.4	322.4	322.4	322.4
TEIO	335.6	338.7	338.7	338.7	337.8
5EPHINT	313.0	321.2	321.6	321.6	321.6
HKEBOXTEMP	318.4	325.9	325.9	325.9	326.6
OHRTHR38	289.2	289.8	289.8	289.8	289.8
4RT568T	287.8	288.4	288.4	288.4	288.4
4PRT4AT	215.9	216.5	216.5	216.5	216.5
OOBTHR06	287.9	288.2	288.2	288.2	288.3
4RT583T	287.2	287.5	287.5	287.5	287.5
4RT586T	288.0	288.5	288.5	288.5	288.5
PLINE01T	285.6	285.6	285.6	287.2	285.6
PLINE02T	297.9	297.9	297.4	297.8	297.3
PLINE03T	293.9	293.6	293.6	294.1	293.6
PLINE16T	291.3	293.1	291.3	297.7	293.5

* PLINE temperatures are weekly minimum temps.

IRUs

Recent Observations

OBSID	DETECTOR	GRATING	TARGET	ANALYSIS	ACA
11330	ACIS-456789	NONE	PGC1179083	OK	OK
11733	ACIS-35678	NONE	Abell 1930	OK	OK
13120	ACIS-01236	NONE	Abell 2146	OK	OK
11336	ACIS-456789	NONE	SDSSJ145944.77+020752.1	OK	OK
12241	ACIS-01236	NONE	NGC 7016	OK	OK
13018	ACIS-7	NONE	NGC 5408 X-1	OK	OK
12115	ACIS-456789	HETG	1H0707-495	OK	OK
11830	ACIS-23567	NONE	GRB 100816A	OK	OK
11737	ACIS-35678	NONE	3C 449	OK	OK
11584	ACIS-35678	NONE	RXJ104723.37+540412.6	OK	OK
12116	ACIS-456789	HETG	1H0707-495	OK	OK
12243	ACIS-01236	NONE	MACSJ0140.0-0555	OK	OK
12261	ACIS-01236	NONE	ACT J0616-5227	OK	OK
11314	ACIS-456789	NONE	NGC5831	OK	OK
11847	ACIS-012367	NONE	Centaurus A	OK	OK
12294	ACIS-235678	NONE	Mrk 573	OK	OK

Min/max envelopes in dark blue appear on the trending plots. The envelopes are 4th degree fits to the monthly minimum and maximum values for each MSID. The final polynomial form and binning are still being experimented with. We will soon add to the trending pages a report of the fits and predictions they give on future limit violations. The light blue curve is our original smoothing of all the data over 30 day moving boxcars. The green/yellow line is a linear fit to all the data; the break occurs at a limit change.

ACA Thermal


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
AACBPPT	298.31	2.27	1.045e+00	1.149e-01	K	AC BASEPLATE TEMP (PRIME)
AACBPRT	293.81	1.87	8.579e-01	1.619e-01	K	AC BASEPLATE TEMP (RDNT)
AACCCDPT	255.45	2.02	-8.613e-01	1.770e-02	K	AC CCD TEMP (PRI)
AACCCDRT	293.41	2.01	9.452e-01	1.662e-01	K	AC CCD TEMP (RDNT)
AACH1T	290.98	1.57	7.233e-01	1.344e-01	K	AC HOUSING TEMP (ACH1)
AACH2T	291.03	1.56	7.198e-01	1.288e-01	K	AC HOUSING TEMP (ACH2)
AAOTALT	290.73	1.51	7.126e-01	1.679e-01	K	AC OPT TEL ASSY LENS TEMP
AAOTAPMT	290.13	1.47	6.805e-01	1.255e-01	K	AC OPT TEL ASSY PRIMARY MIRROR TEMP
AAOTASMT	290.29	1.46	6.864e-01	1.569e-01	K	AC OPT TEL ASSY SECONDARY MIRROR TEMP
AAOTH2MT	290.66	1.51	7.114e-01	1.837e-01	K	AC OPT TEL ASSY SECONDARY MIRROR TEMP (HRMA)

ACA Thermal - Past 90 days

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
AACH1T	293.53	0.55	1.626e+00	1.151e+01	K	AC HOUSING TEMP (ACH1)
AACH2T	293.57	0.54	1.660e+00	1.150e+01	K	AC HOUSING TEMP (ACH2)
AAOTASMT	292.64	0.53	1.638e+00	1.081e+01	K	AC OPT TEL ASSY SECONDARY MIRROR TEMP
AAOTH2MT	293.09	0.54	1.571e+00	1.446e+01	K	AC OPT TEL ASSY SECONDARY MIRROR TEMP (HRMA)

FTS Gradients


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OHRTHR27	297.12	3.633e-02	7.737e-04	1.217e-03	K	RT 20 : PERISCOPE
OHRTHR42	294.15	4.904e-02	1.680e-02	6.177e-03	K	RT 133: PERISCOPE
OHRTHR43	293.32	0.17	6.103e-02	1.473e-02	K	RT 134: PERISCOPE
OOBAGRD3	0.78	0.13	-4.619e-02	-8.507e-03	K	RT 505 TO RT 504: PERISCOPE GRADIENT
OOBAGRD6	0.04	9.858e-03	2.902e-03	3.663e-04	K	RT 507 TO RT 506: PERISCOPE GRADIENT

FTS Gradients - Past 90 days

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OHRTHR27	297.14	7.944e-03	-8.886e-03	3.621e-02	K	RT 20 : PERISCOPE
OHRTHR42	294.26	2.841e-02	6.712e-02	4.046e-01	K	RT 133: PERISCOPE
OHRTHR43	293.64	7.237e-02	1.906e-01	1.564e+00	K	RT 134: PERISCOPE
OOBAGRD3	0.54	4.658e-02	-1.249e-01	-1.158e+00	K	RT 505 TO RT 504: PERISCOPE GRADIENT
OOBAGRD6	0.06	2.159e-03	8.232e-03	3.197e-02	K	RT 507 TO RT 506: PERISCOPE GRADIENT

Drift rate updates to gyros


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
AOGBIAS1	-3.783e-06	9.524e-07	-2.632e-07	7.086e-08	RADPS	GYRO DRIFT RATE ESTIMATE (ROLL)
AOGBIAS2	-5.856e-06	5.419e-06	-1.408e-06	1.151e-08	RADPS	GYRO DRIFT RATE ESTIMATE (PITCH)
AOGBIAS3	-2.783e-06	3.610e-06	-9.421e-07	8.188e-08	RADPS	GYRO DRIFT RATE ESTIMATE (YAW)

Drift rate updates to gyros - Past 90 days

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
AOGBIAS1	-4.088e-06	1.251e-07	1.750e-06	-2.064e-06	RADPS	GYRO DRIFT RATE ESTIMATE (ROLL)
AOGBIAS2	-9.315e-06	9.258e-08	1.295e-06	3.225e-07	RADPS	GYRO DRIFT RATE ESTIMATE (PITCH)
AOGBIAS3	-4.547e-06	1.136e-07	1.588e-06	-3.024e-06	RADPS	GYRO DRIFT RATE ESTIMATE (YAW)

IRU Temperature and Electronics - Past 90 days

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
AFSSPC1V	3.50	4.958e-03	-3.876e-03	9.651e-02	V	FSS POWER CONV 1 VOLTAGE
AGWS2V	2.70	7.213e-04	1.030e-03	-2.466e-02	V	GYRO WHEEL SUPPLY 2 INPUT VOLTAGE
AIRU2BT	310.11	0.24	2.505e-01	2.298e+00	K	IRU-2 BASE TEMP
AIRU2G1I	111.10	2.39	2.177e+01	-3.261e+02	MAMP	IRU-2 GYRO #1 CURRENT
AIRU2G1T	342.26	0.000e+00	0.000e+00	0.000e+00	K	IRU-2 GYRO #1 TEMP
AIRU2G2I	107.10	0.93	-4.152e+00	-2.758e+01	MAMP	IRU-2 GYRO #2 CURRENT
AIRU2G2T	342.49	0.000e+00	0.000e+00	0.000e+00	K	IRU-2 GYRO #2 TEMP
AIRU2VFT	334.67	0.000e+00	0.000e+00	0.000e+00	K	IRU-2 VFC TEMP

If you have any questions, please contact: swolk@head.cfa.harvard.edu