MTA Monitoring Report 04/04/03 - 04/10/03

Quiet

Detrended CTI

CTI analysis is now computed with "detrending":
Detrend CTI = Measured CTI + S3 amplitude reject rate * Detrend factor.

Average of ACIS-I CCDs (MnKa) slope 8.609e-9 CTI/day
Detrended slope 8.849e-9 CTI/day

ACIS Warm Pixels

	CCD0	CCD3	CCD5	CCD6	CCD7	CCD8	CCD9
New this week/ Reappeared	(1024,40)		(263,317),(352,544) (258,797)			(62,482),(1024,454) (1024,456)
Previously reported - still observed			(226,565),(357,303) (369,376),(341,427) (383,586),(607,281) (669,577)	(360,249) (776,501)
Previously reported - not observed during this period						(587,544)	(150,374) (825,292)
Flickering pixels	(1024,40)	(811,637)	(263,317) (352,544),(367,511)		(199,678),(335,412)
Warm column candidates

ACIS Focal Plane Temperature

For this period, 4 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
094.73	-118.58	1.43
097.24	-118.90	0.80
100.12	-117.45	>0.71	Double peak left
100.30	-115.67	>0.25	Double peak right

SIM Movements

6 TSC moves this period
weekly average time/step 0.00119 s
mission average time/step 0.00136 s

Telemetry

blue cells

here

MSID	04/04	04/05	04/06	04/07	04/08	04/09	04/10	yellow limits (lower) upper	red limits (lower) upper	Units	Description
1CRAT				152.40		150.0	152.40	(143.16) 148.16	(131.16) 183.16	K	#COLD RADIATOR TEMP. A
1CRBT				152.40		150.0	152.40	(143.16) 148.16	(131.16) 183.16	K	#COLD RADIATOR TEMP. B
TEPHIN				302.09	303.89			(260.8) 300.2	(258.0) 303.0	K	#EPHIN SENSOR HOUSING TEMP
5EPHINT				301.53	303.23			(261.0) 300.0	(258.0) 303.0	K	#EPHIN TEMP
HKBBIASLEAKI	0.54			0.58	0.69			(-100.0) 0.5	(-200.0) 0.7	uA	#EPHIN HOUSEKEEPING B-BIAS: LEAKAGE CURRENT (5EHSE500)
HKEBIASLEAKI					31.13			(-100.0) 30.0	(-200.0) 40.0	uA	#EPHIN HOUSEKEEPING E-BIAS: LEAKAGE CURRENT (5EHSE800)
HKEBOXTEMP					308.45			(268.0) 308.0	(253.0) 343.0	K	#EPHIN HOUSEKEEPING EBOX: TEMPERATURE (5EHSE300)
HKP27I	5.44			5.68	6.07			(3.66) 5.24	(3.46) 5.44	AMP	#HK 27 Volts Rail - Current
HKP6V					(5.755)			(5.76) 5.86	(5.74) 5.88	V	#HK 6 Volts Rail - Voltage
AAOTH2MT				287.76	287.76			(286.50) 287.53	(286.40) 287.63	K	#AC OPT TEL ASSY SECONDARY MIRROR TEMP (HRMA)
AIRU1G1I	163.20	151.20	151.20	153.60	151.20	160.80	189.60	(-5.0) 150	(-10.0) 200.0	MAMP	#IRU-1 GYRO #1 CURRENT
TMZLGABM		324.48			324.48	322.36	322.36	(244.1) 321.9	(208.0) 388.0	K	#-Z LOW-GAIN ANTENNA BOOM TEMP
TFSSBKT1					333.98			(237.4) 333.0	(223.0) 348.0	K	#FSS BRACKET-1 TEMP (+Y)
OOBTHR56	289.10	288.65	288.74	289.28	289.28		288.83	(281.9) 288.6	(250.2) 308.0	K	#RT 158: OBA CONE

A real-time procedure was completed on Mar 30 to perform a manual unload of momentum using thrusters A-1 (100%), A-2 and A-3. The unload duration was longer than expected for nominal thruster performance and consistent with prior anomalous unloads. A software patch was uplinked to allow collection of high sample rate telemetry of the bus current, and the data are under analysis.

The IRU-1 gyro-1 current has continued to display elevated and noisy behavior above its yellow limit (150mA) but below its red limit (200mA). Following discussions with the vendor, procedures and products for a B-side IRU swap are being readied in the event that they are needed. The gyro bias level has remained unaffected by the change in current and so to date, there has been no impact to science or operations.

Recent Observations

"Prob" means that there was probably bad time data included in the manual runs. This will be corrected in future processing.

OBSID	DETECTOR	GRATING	TARGET	ANALYSIS	ACA
4385	ACIS-I	NONE	SN1006	OK	OK
4390	ACIS-I	NONE	SN1006	OK	Prob
4389	ACIS-I	NONE	SN1006	OK	OK
4388	ACIS-I	NONE	SN1006	OK	OK
4387	ACIS-I	NONE	SN1006	OK	OK
4386	ACIS-I	NONE	SN1006	OK	OK
3838	ACIS-I	NONE	SN1006	OK	OK
3946	ACIS-S	NONE	NGC1831	OK	OK
4228	ACIS-I	NONE	SS47	OK	OK
4244	ACIS-I	NONE	SD17	OK	OK
4259	ACIS-I	NONE	SS20	OK	OK
4271	ACIS-I	NONE	SS44	OK	OK
4280	ACIS-I	NONE	SS58	OK	OK
4266	ACIS-I	NONE	SS43	OK	OK
4254	ACIS-I	NONE	SS19	OK	OK
4239	ACIS-I	NONE	SD38	OK	OK
4223	ACIS-I	NONE	SS46	OK	OK
4233	ACIS-I	NONE	SS48	OK	OK
4249	ACIS-I	NONE	SD18	OK	OK
4218	ACIS-I	NONE	SS45	OK	OK
4234	ACIS-I	NONE	SS37	OK	OK
3617	ACIS-I	NONE	NOAOFIELDF26	OK	Prob
3601	ACIS-I	NONE	NOAOFIELDF1	OK	OK
3607	ACIS-I	NONE	NOAOFIELDF2	OK	OK
3623	ACIS-I	NONE	NOAOFIELDF16	OK	OK
3639	ACIS-I	NONE	NOAOFIELDF30	OK	OK
3655	ACIS-I	NONE	NOAOFIELDF11	OK	OK
3629	ACIS-I	NONE	NOAOFIELDF50	OK	OK
3650	ACIS-I	NONE	NOAOFIELDF21	OK	OK
3634	ACIS-I	NONE	NOAOFIELDF40	OK	OK
3618	ACIS-I	NONE	NOAOFIELDF15	OK	OK
3628	ACIS-I	NONE	NOAOFIELDF39	OK	OK
3602	ACIS-I	NONE	NOAOFIELDF57	OK	OK
3596	ACIS-I	NONE	NOAOFIELDF56	OK	OK
3612	ACIS-I	NONE	NOAOFIELDF14	OK	OK
3644	ACIS-I	NONE	NOAOFIELDF20	OK	OK
3660	ACIS-I	NONE	NOAOFIELDF66	OK	OK
3597	ACIS-I	NONE	NOAOFIELDF45	OK	OK
3613	ACIS-I	NONE	NOAOFIELDF3	OK	OK
3645	ACIS-I	NONE	NOAOFIELDF31	OK	OK

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
HSTRTGRD1	-2.396e+00	5.744e-02	-4.600e-02	-7.710e-03	K	RT25-RT26: HRMA STRUTS
HSTRTGRD2	-1.399e+00	1.402e-01	-7.494e-02	6.583e-03	K	RT26-RT27: HRMA STRUTS
HSTRTGRD3	-2.936e-01	6.530e-02	-1.343e-02	1.276e-03	K	RT27-RT28: HRMA STRUTS
HSTRTGRD4	1.177e+00	2.947e-01	1.861e-01	-1.238e-02	K	RT28-RT29: HRMA STRUTS
HSTRTGRD5	1.699e+00	1.120e-01	6.685e-02	-1.035e-02	K	RT29-RT30: HRMA STRUTS

axial, radial, diametral gradients OBA Cone

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
HCONEGRD17	-4.085e-01	6.296e-02	-1.651e-02	3.709e-02	K	RT39-RT40: OBA Cone Panel
HCONEGRD18	8.525e-01	2.545e-01	9.800e-02	-1.682e-02	K	RT39-RT46: OBA Cone Panel
HCONEGRD19	-9.927e-02	1.818e-02	4.391e-04	-7.474e-03	K	RT40-RT31: OBA Cone Panel
HCONEGRD21	1.433e-01	3.541e-02	2.024e-02	2.752e-03	K	RT41-RT42: OBA Cone Panel
HCONEGRD23	4.913e-01	1.140e-01	3.414e-02	-2.416e-04	K	RT42-RT43: OBA Cone Panel
HCONEGRD24	6.241e-02	9.553e-02	-2.598e-02	3.457e-03	K	RT42-RT49: OBA Cone Panel
HCONEGRD35	3.190e-01	1.152e-01	4.259e-02	3.187e-02	K	RT48-RT49: OBA Cone Panel
HCONEGRD36	-6.793e-01	1.438e+00	-2.246e-01	-1.813e-01	K	RT48-RT53: OBA Cone Panel
HCONEGRD37	4.588e-01	1.945e-01	8.050e-02	6.927e-02	K	RT49-RT50: OBA Cone Panel
HCONEGRD44	-4.748e-01	8.236e-01	-1.176e-01	-2.375e-01	K	RT52-RT53: OBA Cone Panel
HCONEGRD7	-4.503e-01	1.015e-01	5.861e-02	-4.336e-03	K	RT34-RT35: OBA Cone Panel

axial, radial, diametral gradients Spacecraft Struts

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
HSSTRTGRD1	-8.444e-02	4.971e-03	-1.180e-03	-2.768e-04	K	RT75-RT76: Spacecraft Struts
HSSTRTGRD2	-1.267e+00	9.590e-01	-5.697e-01	-2.704e-01	K	RT76-RT77: Spacecraft Struts
HSSTRTGRD3	-2.867e-01	2.359e-01	-8.208e-02	2.454e-02	K	RT77-RT78: Spacecraft Struts
HSSTRTGRD4	1.631e+00	6.067e-01	2.644e-01	-1.018e-01	K	RT78-RT79: Spacecraft Struts
HSSTRTGRD5	1.095e-01	5.303e-03	2.945e-03	-2.555e-04	K	RT79-RT80: Spacecraft Struts

axial, radial, diametral gradients TFTE

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
HTFTEGRD1	1.629e-01	6.746e-03	-1.331e-03	4.003e-04	K	RT58-RT59: TFTE Forward Cylinder
HTFTEGRD10	2.095e+00	1.929e-01	1.199e-01	1.349e-02	K	RT67-RT68: TFTE Cover
HTFTEGRD11	2.655e+01	4.076e-01	2.860e-01	-1.055e-01	K	RT68-RT69: TFTE Cover
HTFTEGRD12	-5.776e+00	5.769e-02	-2.057e-02	1.722e-03		HTFTEGRD12
HTFTEGRD2	-2.187e-02	6.164e-03	-7.281e-04	-7.550e-04	K	RT59-RT60: TFTE Forward Cylinder
HTFTEGRD3	-1.412e-01	9.970e-03	2.213e-03	2.322e-03	K	RT60-RT58: TFTE Forward Cylinder
HTFTEGRD4	1.035e+00	1.142e-01	7.245e-02	1.300e-02	K	RT61-RT62: TFTE Cone
HTFTEGRD5	7.516e-01	8.503e-02	6.030e-02	4.197e-03	K	RT62-RT63: TFTE Cone
HTFTEGRD6	-1.788e+00	1.591e-01	-1.019e-01	-1.318e-02	K	RT63-RT61: TFTE Cone
HTFTEGRD7	5.807e+00	3.047e-02	1.072e-02	8.259e-03	K	RT64-RT65: TFTE Cover
HTFTEGRD8	-2.650e+01	4.611e-01	-3.255e-01	-5.573e-02	K	RT65-RT66: TFTE Cover
HTFTEGRD9	-2.219e+00	2.328e-01	-1.233e-01	-1.049e-02	K	RT66-RT67: TFTE Cover