MTA Monitoring Report 04/11/03 - 04/17/03

SCS107 ran autonomously at 2003:107:20:36 UT, triggered by a RADMON trip of the EPHIN P4GM channel near radiation zone entry. The last 3.3 ks of obsid 3577 were affected. Science resumed with obsid 4190 on perigee exit as originally scheduled.

From Joe DePasquale:
It is highly probable that the EPHIN P4 channel was contaminated by excessive electron flux in this trip. If you look at the EPHIN E150 9 day plot, notice that for the last perigee transit before today the E150 rates were approaching, and probably exceeding 10^5 cts/sec/cm^2/sr at ingress. The P4 channel was very close to tripping SCS107 on this orbit as well...most likely due to electrons and not protons.

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 8.576e-9 CTI/day
Detrended slope 8.813e-9 CTI/day

ACIS Warm Pixels

	CCD0	CCD3	CCD5	CCD6	CCD7	CCD8	CCD9
New this week/ Reappeared
Previously reported - still observed
Previously reported - not observed during this period	(1024,40)		(226,565),(357,303) (369,376),(341,427) (383,586),(607,281) (669,577)	(776,501)		(587,544)	(150,374) (825,292)
Flickering pixels		(811,637)	(263,317) (352,544),(367,511)	(360,249)	(199,678) (335,412)	(62,482),(1024,454) (1024,455),(1024,456)
Warm column candidates

ACIS Focal Plane Temperature

For this period, 3 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
102.08	-118.74	1.03
103.00	-117.45	0.27
105.55	-117.12	0.24

SIM Movements

7 TSC moves this period
weekly average time/step 0.00134 s
mission average time/step 0.00136 s

Telemetry

blue cells

here

MSID	04/11	04/12	04/13	04/14	04/15	04/16	04/17	yellow limits (lower) upper	red limits (lower) upper	Units	Description
1CRAT		150.00			150.00			(143.16) 148.16	(131.16) 183.16	K	COLD RADIATOR TEMP. A
1CRBT		150.00			150.00			(143.16) 148.16	(131.16) 183.16	K	COLD RADIATOR TEMP. B
TEPHIN			301.06	301.58	302.69			(260.8) 300.2	(258.0) 303.0	K	EPHIN SENSOR HOUSING TEMP
5EPHINT				301.10	301.95			(261.0) 300.0	(258.0) 303.0	K	EPHIN TEMP
HKBBIASLEAKI		0.53	0.50	0.56	0.63			(-100.0) 0.5	(-200.0) 0.7	uA	EPHIN HOUSEKEEPING B-BIAS: LEAKAGE CURRENT (5EHSE500)
HKP27I			5.44	5.60	5.83	5.28		(3.66) 5.24	(3.46) 5.44	AMP	HK 27 Volts Rail - Current
HKP6V					5.76			(5.76) 5.86	(5.74) 5.88	V	HK 6 Volts Rail - Voltage
AIRU1G1I	172.80	153.60	153.60	153.60	153.60	156.00	153.60	(-5.0) 150	(-10.0) 200.0	MAMP	IRU-1 GYRO #1 CURRENT
FAMTRTEMP			282.6	284.2	286.2		284.65	(260.0) 282.0	(255.0) 285.0	K	FA motor temperature
PSUTEMP					322.15			(313.8) 321.85	(312.6) 323.05	K	SEA power supply temperature (3FAPSAT)
BOXTEMP				292.65	293.65		292.65	(278.0) 292.0	(276.0) 294.0	K	SEA box temperature
TSCIUSF1				354.41	354.41		354.41	(230.2) 346.9	(227.4) 349.7	K	SC-IUS FITTING-1 TEMP
TSCIUSF8				354.41	354.41		354.41	(230.2) 346.9	(227.4) 349.7	K	SC-IUS FITTING-8 TEMP
TCYLAFT1					295.00	295.00		(260.8) 294.1	(227.4) 349.7	K	CNT CYL TEMP:16-IN FWD OF SC-TS FIT-1
TCYLAFT6					295.00			(260.8) 294.1	(227.4) 349.7	K	CNT CYL TEMP:16-IN FWD OF SC-TS FIT-6
TMZP_CNT				328.72	330.84		327.66	(237.4) 327.4	(227.4) 349.7	K	-Z PNL TEMP:CENTER
TFSSBKT1			335.56	335.56	337.13		333.98	(237.4) 333.0	(223.0) 348.0	K	FSS BRACKET-1 TEMP (+Y)
TFSSBKT2			335.56	335.56	337.13		333.98	(237.4) 333.0	(223.0) 348.0	K	FSS BRACKET-2 TEMP (-Y)
OOBTHR56		288.83	289.01	288.65				(281.9) 288.6	(250.2) 308.0	K	RT 158: OBA CONE
OOBTHR57			288.65	289.10	289.01		289.19	(281.9) 288.6	(250.2) 308.0	K	RT 150: OBA CONE
Nominal SCS 107 related limit trips
1DPICACU							(0.39)	(0.90) 1.75	(-1000) 1000	AMP	DPA INPUT CURRENT A
1DPICBCU							(0.24)	(0.70) 1.75	(-1000) 1000	AMP	DPA INPUT CURRENT B
1DPPWRA							(11.8)	(23.4) 59.5	(-999) 999	W	DPA POWER A
1DPPWRB							(7.1)	(18.2) 59.5	(-999) 999	W	DPA POWER B

IRUs

The IRU-1 gyro-1 current has settled around 151-153 mA and become less noisy during this period. 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.

Reaction wheel speeds have occasionally dropped below the limit of 52.4 rad/s due to our increased momentum envelope.

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
3973	ACIS-S	NONE	1136-135	OK	OK
4110	ACIS-S	NONE	F12112+0305	OK	OK
4433	ACIS-S	NONE	SATURN	OK	Prob
3725	ACIS-S	NONE	SATURN	OK	OK
4139	ACIS-S	NONE	FIRST J142114+282452	OK	OK
3979	ACIS-S	NONE	M87	OK	OK
4144	ACIS-S	NONE	J2044+7044	OK	OK
3835	ACIS-S	NONE	RX J0007.0+7303	OK	OK
4039	ACIS-S	NONE	2MASS112751+243208	OK	OK
4108	ACIS-S	NONE	Z11598-0112	OK	OK
3984	ACIS-S	NONE	B2 1553+24	OK	OK
3983	ACIS-S	NONE	B2 1422+26B	OK	OK
3929	ACIS-I	NONE	NGC 5746	OK	OK
4126	ACIS-S	NONE	TXS 1428+370	OK	OK
4091	ACIS-S	NONE	SDSS J143030.22-001115.1	OK	OK
4394	ACIS-I	NONE	SN1006	OK	OK
4393	ACIS-I	NONE	SN1006	OK	OK
4392	ACIS-I	NONE	SN1006	OK	OK
4391	ACIS-I	NONE	SN1006	OK	OK


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
EB1CI	3.758e-01	2.549e-02	-6.825e-03	-7.236e-03	AMP	BATT 1 CHARGE CURRENT
EB1V	3.279e+01	1.147e-01	-3.279e-02	-4.427e-02	V	BATT 1 VOLTAGE
EB2CI	3.861e-01	2.706e-02	-5.770e-03	-1.179e-02	AMP	BATT 2 CHARGE CURRENT
EB2V	3.278e+01	1.226e-01	-4.487e-02	-1.244e-01	V	BATT 2 VOLTAGE
EB3CI	3.824e-01	2.656e-02	-7.374e-03	-1.070e-02	AMP	BATT 3 CHARGE CURRENT
EB3V	3.250e+01	1.141e-01	-4.500e-02	-1.532e-01	V	BATT 3 VOLTAGE
EOESAC1C	1.423e+01	1.206e+00	1.262e-02	-1.843e-01	AMP	-Y SOLAR ARRAY CURRENT - COUNTS (ESAMYI)
EOESAC2C	1.514e+01	1.208e+00	-1.735e-01	-5.704e-01	AMP	+Y SOLAR ARRAY CURRENT - COUNTS (ESAPYI)

Spacecraft Main Temperatures


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
TCYLAFT1	2.862e+02	4.242e+00	2.001e+00	-3.158e+00	K	CNT CYL TEMP:16-IN FWD OF SC-TS FIT-1
TCYLAFT6	2.848e+02	4.749e+00	2.237e+00	-3.635e+00	K	CNT CYL TEMP:16-IN FWD OF SC-TS FIT-6
TMZLGABM	2.986e+02	1.009e+01	6.597e+00	-1.797e+00	K	-Z LOW-GAIN ANTENNA BOOM TEMP
TMZP_CNT	3.137e+02	1.087e+01	2.895e+00	-7.861e+00	K	-Z PNL TEMP:CENTER
TPZLGABM	2.116e+02	2.266e+00	-1.373e-01	-1.126e+00	K	+Z LOW-GAIN ANTENNA BOOM TEMP

Spacecraft Ancilliary Temperatures


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
TFSSBKT1	3.183e+02	1.250e+01	3.226e+00	-8.938e+00	K	FSS BRACKET-1 TEMP (+Y)
TFSSBKT2	3.174e+02	1.304e+01	2.694e+00	-8.209e+00	K	FSS BRACKET-2 TEMP (-Y)

Battery Temperatures


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
TB1T3	2.707e+02	3.310e-01	-4.251e-03	3.892e-03	K	BATT 1 TEMP 3
TB2T3	2.732e+02	3.076e-01	-4.733e-03	3.027e-02	K	BATT 2 TEMP 3
TB3T3	2.735e+02	3.350e-01	-2.543e-02	9.115e-03	K	BATT 3 TEMP 3

Spacecraft Electronics


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
ELBV	3.037e+01	4.348e-01	-2.571e-01	2.017e-01	V	LOAD BUS VOLTAGE
ESAMYI	1.458e+01	1.126e+00	-2.864e-01	1.489e-01	AMP	S/A -Y CURRENT
ESAPYI	1.376e+01	1.107e+00	-1.022e-01	2.966e-01	AMP	S/A +Y CURRENT

Spacecraft Electronics side A

Spacecraft Electronics side B