MTA Monitoring Report 07/17/09 - 07/23/09

Chandra MUPS Tank Pressure Drop on 19 July 2009

On DOY 200, it was discovered that MUPS tank pressure suddenly dropped ~21 psi over 45 minutes, from 255 psia to 234 psia. It stabilized for a while, then began a slow drop to the last known value of 217.3 psia at 202:1600 GMT.

Ground calculations show that the change in pressure correlates to ~6 lbm of propellant lost (51.8 lbm on DOY 199 to 45.5 lbm on DOY 202). There were no significant changes in rates, momentum, or propulsion system temperatures. For information, please see MUPS Tank Pressure Drop (rev c) presentation slide.

MUPS Tank Pressure (PMTANKP)

Fuel Tank Inlet Pressure (PFTANKIP)

MUPS Tank Temperature (PMTANK1T)

Archive of all weekly reports

Archive of monthly reports

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: 1.352e-9 CTI/day (1.559e-9 CTI/day)
Detrended slope: 7.270e-9 CTI/day (7.276e-9 CTI/day)

Average of ACIS-I CCDs (MnKa) slope:	1.352e-9 CTI/day	(1.559e-9 CTI/day)
Detrended slope:	7.270e-9 CTI/day	(7.276e-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	(153,205)	(802,665)	(526,66)	(811,637)	(247,364) (227,467) (283,224)	(233,321) (233,322) (233,323) (233,324) (233,325) (258,797) (263,317) (280,313) (352,544) (367,511) (369,376) (669,577) (745,313)		(662,995)	(829,997) (881,53)	(626,819)
Flickering Warm Pixels	(153,205)	(802,665) (910,239)	(206,757) (526,66) (764,98)	(703,739) (931,553)	(247,364) (227,467) (283,224)	(233,315) (233,328) (233,326) (282,385) (367,511) (745,313) (1023,166)	(884,31) (1000,214)	(335,412)	(913,165)	(40,49) (569,1016) (637,819) (724,821)
Current Hot Pixels
Flickering Hot Pixels
Warm column candidates						509 514 1021			509
Flickering Warm Column Candidates	509 518						509		514 516 1021	509

ACIS Focal Plane Temperature

Day (DOY)	Temp (C)	Width (Days)
198.29	-116.80	0.13
203.63	-111.79	0.46

SIM Movements

8 TSC moves this period
weekly average time/step 0.00131 s
mission average time/step 0.00134 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	07/18/09	07/19/09	07/20/09	07/21/09	07/22/09	07/23/09	yellow limits (lower) upper	red limits (lower) upper	Units	Description
1CRAT	152.40					157.20		(143.16) 148.16	(131.16) 183.16	K	#COLD RADIATOR TEMP. A
1CRBT						157.20		(143.16) 148.16	(131.16) 183.16	K	#COLD RADIATOR TEMP. B
1DPPWRA	(20.48)	(20.48)						(23.4) 59.5	(-999) 999	W	# DPA POWER A
1DPPWRB	(7.23)	(7.46)		(7.19)	(7.49)	(7.68)		(18.2) 59.5	(-999) 999	W	# DPA POWER B
5EPHINT	318.14	323.97	322.10	313.88	313.88	314.30	321.63	(261.0) 300.0	(258.0) 303.0	K	#EPHIN TEMP
HKEBOXTEMP	323.67	328.16	326.61				326.61	(268.0) 308.0	(253.0) 343.0	K	#EPHIN HOUSEKEEPING EBOX: TEMPERATURE (5EHSE300)
HKFBIASLEAKI	3.85	4.88	4.88	2.41	2.41	2.41	4.77	(-100.0) 2.0	(-200.0) 3.0	uA	#EPHIN HOUSEKEEPING F-BIAS: LEAKAGE CURRENT (5EHSE900)
TEIO	337.13	340.27	340.27			333.98	337.13	(253.0) 320.2	(250.2) 323.0	K	#EPHIN ELECTRONICS HOUSING TEMP
TEPHIN	317.77	324.48	323.42			315.29	322.36	(260.8) 300.2	(258.0) 303.0	K	#EPHIN SENSOR HOUSING TEMP
3RCTUBPT				294.46				(253.0) 293.0	(230.5) 315.5	K	#RCTU BASEPLATE (+X)
3TSMXSPT	283.26	285.76	283.26	283.26		283.26	283.26	(203.0) 283.0	(148.0) 353.0	K	#-X TURTLE SHELL NR ACIS SS
3TTHRC1T				294.46				(243.0) 293.0	(218.5) 353.0	K	#TT AT HRC BIPOD ATTACH #1
3TTHRC2T				298.48				(243.0) 293.0	(218.5) 353.0	K	#TT AT HRC BIPOD ATTACH #2
TCYLAFT1		298.48						(260.8) 294.1	(227.4) 349.7	K	#CNT CYL TEMP:16-IN FWD OF SC-TS FIT-1
TCYLAFT6		299.51						(260.8) 294.1	(227.4) 349.7	K	#CNT CYL TEMP:16-IN FWD OF SC-TS FIT-6
TFSSBKT1	346.67	348.63	348.63	344.71		344.71	346.67	(237.4) 333.0	(223.0) 348.0	K	#FSS BRACKET-1 TEMP (+Y)
TFSSBKT2	348.63	348.63	348.63	344.71		344.71	348.63	(237.4) 333.0	(223.0) 348.0	K	#FSS BRACKET-2 TEMP (-Y)
TMZLGABM						329.78		(244.1) 321.9	(208.0) 388.0	K	#-Z LOW-GAIN ANTENNA BOOM TEMP
TMZP_CNT	341.12	342.75	341.12					(237.4) 327.4	(227.4) 349.7	K	#-Z PNL TEMP:CENTER
TSCTSF1		295.00						(260.8) 294.1	(253.0) 303.0	K	#SC-TS FITTING -1 TEMP
4RT575T	289.13	289.74	289.44				289.44	(281.9) 288.6	(250.2) 308.0	K	#RT 575 - OB CONE TEMP
4RT576T	283.60	283.92	283.60				283.60	(280.8) 283.0	(250.2) 308.0	K	#RT 576 - OB CONE TEMP
4RT578T		289.44	289.13				288.83	(281.9) 288.6	(250.2) 308.0	K	#RT 578 - OB CONE TEMP
4RT581T	289.13	289.13	289.13	289.13			288.83	(281.9) 288.6	(250.2) 308.0	K	#RT 581 - OB CONE TEMP
4RT584T	290.01	290.27	290.27	290.27			290.01	(281.9) 288.6	(250.2) 308.0	K	#RT 584 - STRUT TEMP
4RT585T	290.27	290.27	290.27	290.27			290.27	(281.9) 288.6	(250.2) 308.0	K	#RT 585 - STRUT TEMP
4RT590T	290.27	291.03	290.52	290.27	289.26	288.75	290.01	(281.9) 288.6	(250.2) 308.0	K	#RT 590 - STRUT TEMP
4RT700T	289.74	290.36	290.05	288.83		288.83	290.05	(281.9) 288.6	(250.2) 308.0	K	#RT 700 - OB BULKHEAD TEMP
4RT705T		282.04	282.04					(278.6) 281.9	(250.2) 308.0	K	#RT 705 - OB BULKHEAD TEMP
OOBTHR04		290.07	290.07	290.03				(281.9) 288.6	(250.2) 308.0	K	#RT 27: HRMA STRUT
OOBTHR05	290.10	290.19	290.23	290.19			290.14	(281.9) 288.6	(250.2) 308.0	K	#RT 28: HRMA STRUT
OOBTHR08		288.99	288.77				288.69	(281.9) 288.6	(250.2) 308.0	K	#RT 31: OBA CONE
OOBTHR19	289.23	290.40	290.10				289.97	(281.9) 288.6	(250.2) 308.0	K	#RT 41: OBA CONE
OOBTHR20		289.43	289.13				289.00	(281.9) 288.6	(250.2) 308.0	K	#RT 42: OBA CONE
OOBTHR25		289.68	289.47				289.29	(281.9) 288.6	(250.2) 308.0	K	#RT 47: OBA CONE
OOBTHR26	289.94	291.11	290.85	289.11			290.59	(281.9) 288.6	(250.2) 308.0	K	#RT 48: OBA CONE
OOBTHR27	289.11	290.02	289.76				289.54	(281.9) 288.6	(250.2) 308.0	K	#RT 49: OBA CONE
OOBTHR28	289.38	290.29	290.12	288.77			289.86	(281.9) 288.6	(250.2) 308.0	K	#RT 50: OBA CONE
OOBTHR30		289.42	289.29				289.03	(281.9) 288.6	(250.2) 308.0	K	#RT 52: OBA CONE
OOBTHR31	292.59	292.16	291.72	292.99			291.59	(281.9) 289.7	(250.2) 308.0	K	#RT 53: OBA AFT BULKHEAD
OOBTHR39	288.03	288.34	288.21	287.47			288.16	(281.9) 285.8	(250.2) 308.0	K	#RT 61: TFTE CONE
OOBTHR40		285.80						(281.9) 285.8	(250.2) 308.0	K	#RT 62: TFTE CONE
OOBTHR44		288.68						(281.9) 288.6	(250.2) 308.0	K	#RT 66: TFTE COVER
OOBTHR45		292.24	292.07					(281.9) 288.6	(250.2) 308.0	K	#RT 67: TFTE COVER
OOBTHR51	289.89	290.76	290.29	289.89	289.02		289.72	(281.9) 288.6	(250.2) 308.0	K	#RT 77: S/C STRUT
OOBTHR56		295.71	295.44				295.44	(281.9) 288.6	(250.2) 308.0	K	#RT 158: OBA CONE
OOBTHR57	294.28	294.28	294.19	294.01		291.87	294.01	(281.9) 288.6	(250.2) 308.0	K	#RT 150: OBA CONE
OOBTHR58		289.19	289.01				288.83	(281.9) 288.6	(250.2) 308.0	K	#RT 151: OBA CONE
OOBTHR59	288.65	289.19	289.19				289.10	(281.9) 288.6	(250.2) 308.0	K	#RT 152: OBA CONE
OOBTHR60	288.65	289.90	289.63				289.46	(281.9) 288.6	(250.2) 308.0	K	#RT 153: OBA CONE

Pitch Angle and System Temperature

This is a test implementation, not all #'s have been verified.
On the weekly plots, long green ticks indicate obsid starts. The shorter orange ticks indicate rad zone events.

The following table shows the maximum temperature (in K) appeared during the observations. All data are taken between Jul 07 and July 13, 2009- DOY 188-194.

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

TFSSBKT1 351.0 351.0 348.6 347.7 344.7

TFSSBKT2 351.0 351.0 348.6 347.7 343.6

TEPHIN 325.5 325.5 325.5 323.4 323.4

TEIO 340.3 340.3 340.3 340.3 339.0

5EPHINT 324.7 324.9 324.9 322.0 323.5

HKEBOXTEMP 329.8 329.8 329.8 326.6 328.2

OHRTHR38 290.0 290.0 290.0 289.9 290.1

4RT568T 288.7 288.7 288.7 288.7 288.7

4PRT4AT 217.7 217.7 217.7 217.7 216.5

OOBTHR06 288.6 288.6 288.6 288.6 288.6

4RT583T 288.0 288.0 288.0 288.0 288.0

4RT586T 288.8 288.8 288.8 288.8 288.8

PLINE01T 286.8 286.8 286.8 289.8 289.8

PLINE02T 312.0 312.0 307.8 307.8 307.8

PLINE03T 309.2 309.2 305.2 305.2 305.2

Pitch Angle	60 - 75	75 - 90	90 - 110	110 - 130	130 - 145
TFSSBKT1	351.0	351.0	348.6	347.7	344.7
TFSSBKT2	351.0	351.0	348.6	347.7	343.6
TEPHIN	325.5	325.5	325.5	323.4	323.4
TEIO	340.3	340.3	340.3	340.3	339.0
5EPHINT	324.7	324.9	324.9	322.0	323.5
HKEBOXTEMP	329.8	329.8	329.8	326.6	328.2
OHRTHR38	290.0	290.0	290.0	289.9	290.1
4RT568T	288.7	288.7	288.7	288.7	288.7
4PRT4AT	217.7	217.7	217.7	217.7	216.5
OOBTHR06	288.6	288.6	288.6	288.6	288.6
4RT583T	288.0	288.0	288.0	288.0	288.0
4RT586T	288.8	288.8	288.8	288.8	288.8
PLINE01T	286.8	286.8	286.8	289.8	289.8
PLINE02T	312.0	312.0	307.8	307.8	307.8
PLINE03T	309.2	309.2	305.2	305.2	305.2

* PLINE temperatures are weekly minimum temps.

IRUs

Recent Observations

OBSID	DETECTOR	GRATING	TARGET	ANALYSIS	ACA
10345	ACIS-235678	NONE	F02021-2103	OK	OK
10231	ACIS-01236	NONE	NGC 70	OK	OK
10560	ACIS-356789	NONE	Mrk 209	OK	OK
10523	ACIS-235678	NONE	AX J154905-5420	OK	OK
10133	ACIS-235678	NONE	Vela PWN	OK	OK
10123	ACIS-7	NONE	N49	OK	OK
10112	ACIS-235678	NONE	G1.9+0.3	OK	OK
10687	ACIS-012367	NONE	IGR J11321-5311	OK	OK
9953	ACIS-235678	NONE	PN DS 1	OK	OK
10549	ACIS-235678	NONE	NGC 2305	OK	OK
56946	ACIS-456789	NONE		OK	Missing
10389	ACIS-456789	NONE	NGC3894	OK	OK
9952	ACIS-57	NONE	RS Ophiuchi	OK	OK
10412	ACIS-01236	NONE	ZwCl 1829.3+6912	OK	OK
10633	HRC-I	NONE	Vega	CAL	OK
10634	HRC-S	NONE	Vega	CAL	OK
10635	HRC-S	NONE	Vega	CAL	OK
10636	HRC-S	NONE	Vega	CAL	OK
10751	ACIS-23567	NONE	SDSS J1411+5736	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	297.78	2.06	1.106e+00	1.473e-01	K	AC BASEPLATE TEMP (PRIME)
AACBPRT	293.36	1.68	9.008e-01	1.814e-01	K	AC BASEPLATE TEMP (RDNT)
AACCCDPT	255.80	2.00	-1.010e+00	-1.510e-02	K	AC CCD TEMP (PRI)
AACH1T	290.59	1.38	7.455e-01	1.360e-01	K	AC HOUSING TEMP (ACH1)
AACH2T	290.64	1.38	7.432e-01	1.268e-01	K	AC HOUSING TEMP (ACH2)
AAOTALT	290.36	1.34	7.376e-01	1.912e-01	K	AC OPT TEL ASSY LENS TEMP
AAOTAPMT	289.77	1.30	7.020e-01	1.148e-01	K	AC OPT TEL ASSY PRIMARY MIRROR TEMP
AAOTASMT	289.93	1.29	7.123e-01	1.780e-01	K	AC OPT TEL ASSY SECONDARY MIRROR TEMP
AAOTH2MT	290.28	1.34	7.384e-01	1.829e-01	K	AC OPT TEL ASSY SECONDARY MIRROR TEMP (HRMA)

IRU Temperatures and Electron ics


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
AOCSSI1	0.03	2.594e-02	-9.577e-04	2.727e-03	MAMP	CSSA1 A/D DATA
AOCSSI2	0.02	4.345e-02	-1.278e-03	9.067e-04	MAMP	CSSA2 A/D DATA
AOCSSI3	0.01	2.540e-02	-9.254e-04	1.089e-03	MAMP	CSSA3 A/D DATA
AOCSSI4	0.02	3.016e-02	-1.033e-03	1.650e-03	MAMP	CSSA4 A/D DATA

FTS Temperature and Gradient


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OHRTHR42	294.14	4.082e-02	1.570e-02	4.964e-03	K	RT 133: PERISCOPE
OHRTHR43	293.28	0.15	5.919e-02	1.247e-02	K	RT 134: PERISCOPE
OOBAGRD3	0.80	0.11	-4.551e-02	-7.696e-03	K	RT 505 TO RT 504: PERISCOPE GRADIENT
OOBAGRD6	0.04	9.026e-03	2.903e-03	3.374e-04	K	RT 507 TO RT 506: PERISCOPE GRADIENT

Reaction Wheel Rates

Drift Rate to Gyros