MTA Monitoring Report 10/19/01 - 10/25/01

Archive of Monthly reports

Radiation

During this period, several radiation warnings were issued. The first set of warnings at 13:45 Oct 21 were due to a class X1.6 x-ray flare appeared on Oct 18-19. The ACE proton flux reached to 1.93e+05 p/(cm^2-s-sr-MeV). The load was halted at Oct 21 at 11:38am EDT, resumed on Oct 23 at 4:00am EDT
The second set of warnings were issued on Oct 25. The ACE proton flux was around 8.71e+04p/(cm^2-s-sr-MeV) on Oct 25 4a.m. On October 25 at 0800 UT ACE observed a P3 (130Kev) fluence of 3.6e8 particles/cm2-ster-MeV within 2 hours ) Load was stoppped after perigee passage at 2317 UT.
A new X1.4-flare was also reported on Oct 25. We expect the shock to arrive sometime on October 27 (DOY 300).

CTI Trend

Average of ACIS-I CCDs (MnKa) slope 1.379e-8 CTI/day
Detrended slope 1.284e-8 CTI/day

ACIS Warm Pixels

	CCD2	CCD3	CCD4	CCD5	CCD6	CCD7	CCD8
New this week/ Reappeared			(247,364)
Previously reported - still observed	(483,816) (526,66)			(1-3,775-1024) (226,565) (232-245, 313) (509, spurious rows) (510-511,775-1024) (512,775) (513,776-1024) (607,281) (1022,166)	(360,249) (766,501)	(1-3,1-1024) (4,spurious rows) (509, spurious rows) (510-515,775-1024) (516,spurious rows) (1022,775)	(62,482) (587,544)
Previously reported - not observed during this period

ACIS Focal Temperature

Day (DOY)	Temp (C)	Width (Days)
293.64	-117.77	0.43	a shoulder on the right side
296.29	-115.83	0.39

SIM Movements

Telemetry

3RCTUBPT (RCTU BASEPLATE (+X)): red warning. Max: 278.81 (upper red limit: 278.8)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 282.1 (upper yellow limit: 282.0)

1DPPWRB (DP Power): red warning. Min: 7.29 (lower red limit: 9.0)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 284.5 (upper yellow limit: 282.0)
BOXTEMP (SEA Box Temperature): yellow warning. Max: 292.15 (upper yellow limit: 292.0)
TSCIUSF1 (SC-IUS FITTING-1 TEMP): red warning. Max: 352.84 (upper red limit: 349.7)
TSCIUSF8 (SC-IUS FITTING-8 TEMP): red warning. Max: 352.84 (upper red limit: 349.7)

1DPPWRB (DP Power): red warning. Min: 7.76 (lower red limit: 9.0)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 284.5 (upper yellow limit: 282.0)
BOXTEMP (SEA Box Temperature): yellow warning. Max: 292.15 (upper yellow limit: 292.0)
TSCIUSF1 (SC-IUS FITTING-1 TEMP): red warning. Max: 352.84 (upper red limit: 349.7)
TSCIUSF8 (SC-IUS FITTING-8 TEMP): red warning. Max: 352.84 (upper red limit: 349.7)

1DPPWRB (DP Power): red warning. Min: 7.76 (lower red limit: 9.0)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 283.7 (upper yellow limit: 282.0)
TSCIUSF1 (SC-IUS FITTING-1 TEMP): red warning. Max: 354.41 (upper red limit: 349.7)
TSCIUSF8 (SC-IUS FITTING-8 TEMP): red warning. Max: 354.41 (upper red limit: 349.7)

1PDEAAT (PSMC DEA PS A TEMP): yellow warning. Max: 316.39 (upper yellow limit: 316)
3RCTUBPT (RCTU BASEPLATE (+X)): red warning. Max: 280.90 (upper red limit: 278.8)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 283.2 (upper yellow limit: 282.0)
TSCIUSF1 (SC-IUS FITTING-1 TEMP): red warning. Max: 355.98 (upper red limit: 349.7)
TSCIUSF8 (SC-IUS FITTING-8 TEMP): red warning. Max: 354.98 (upper red limit: 349.7)
TPZLGABM (LOW-GAIN ANTENNA BOOM TEMP): yellow warning. Min: 207.85 (lower yellow limit: 208)

1DPPWRB (DP Power): red warning. Min: ~8 (lower red limit: 9.0)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 283.2 (upper yellow limit: 282.0)
TPZLGABM (LOW-GAIN ANTENNA BOOM TEMP): yellow warning. Min: 207.85 (lower yellow limit: 208)

Recent Observations

Trending

Most msids are keeping the same trends from the previous reporting period ( 08/03/01 - 08/09/01 weekly), however, some discontinuities were observed around dom 750 (around Aug 10; just around the previous reporting period) for grating motions.
Interesting trends are indicated with "*".

• Grating Voltages and Rotation Angles A
• Grating Voltages and Rotation Angles B

  MSID	DESCRIPTION	COMMENT
  4MP5AV	MCE A: +5 VOLT MONITOR VDC	scattered between 0.5 and 2.3
  4MP28AV	MCE A: +28 VOLT MONITOR	scattered between 0.4 and 1.5
  4HPOSARO	HETG ROTATION ANGLE POSITION MONITOR A	min around 7, max around 79.8
  4LPOSARO	LETG ROTATION ANGLE POSITION MONITOR A	min around 7, max around 79.1
  4MP5BV	MCE B: +5 VOLT MONITOR VDC	scattered between 1.0 and 2.5
  4MP28BV	MCE B: +28 VOLT MONITOR	scattered between 4 and 12
  4HPOSBRO	HETG ROTATION ANGLE POSITION MONITOR B	min around 7, max around 80.6
  4LPOSBRO	LETG ROTATION ANGLE POSITION MONITOR B	min around 5, max around 78.4

  
  
• Grating Motions

  MSID	DESCRIPTION	COMMENT
  N_MOVES_HETG_INSR	Total number of moves when inserting HETG	constant @1
  N_MOVES_HETG_RETR	Total number of moves when retracting HETG	constant @1
  *N_MOVES_LETG_INSR	Total number of moves when retracting LETG	jumped from 8 to 18 around dom 750, then back to 14
  *N_MOVES_LETG_RETR	Total number of moves when inserting LETG	lower to 8
  N_LONG_HETG_INSR	Number of long moves when inserting HETG	constant @1
  N_LONG_HETG_RETR	Number of long moves when retracting HETG	constant @1
  N_LONG_LETG_INSR	Number of long moves when inserting LETG	constant @1
  N_LONG_LETG_RETR	Number of long moves when retracting LETG	constant @1
  T_LONG_HETG_INSR	Duration of long move when inserting HETG	154.8 to 155.3 s
  T_LONG_HETG_RETR	Duration of long move when retracting HETG	154.8 to 155.3 s
  T_LONG_LETG_INSR	Duration of long move when inserting LETG	152.0 to 153.0 s
  T_LONG_LETG_RETR	Duration of long move when retracting LETG	153.0, 153.2 s
  N_SHORT_HETG_INSR	Number of short moves when inserting HETG	n/a, always 0
  N_SHORT_HETG_RETR	Number of short moves when retracting HETG	n/a, always 0
  *N_SHORT_LETG_INSR	Number of short moves when inserting LETG	jump from 7 to 18 around dom 750 back to 13
  N_SHORT_LETG_RETR	Number of short moves when retracting LETG	5-9
  EMF_MIN_LONG_HETG_INSR	Long move min EMF when inserting HETG	5.1 to 5.5
  EMF_MIN_LONG_HETG_RETR	Long move min EMF when retracting HETG	4.95 to 5.5
  EMF_MIN_LONG_LETG_INSR	Long move min EMF when inserting LETG	5.8 to 6.1
  EMF_MIN_LONG_LETG_RETR	Long move min EMF when retracting LETG	5.9
  EMF_AVG_LONG_HETG_INSR	Long move avg EMF when inserting HETG	5.75 to 5.9
  EMF_AVG_LONG_HETG_RETR	Long move avg EMF when retracting HETG	5.75 to 5.9
  EMF_AVG_LONG_LETG_INSR	Long move avg EMF when inserting LETG	6.37
  EMF_AVG_LONG_LETG_RETR	Long move avg EMF when retracting LETG	6.35
  EMF_MAX_LONG_HETG_INSR	Long move max EMF when inserting HETG	6.2 to 6.5
  EMF_MAX_LONG_HETG_RETR	Long move max EMF when retracting HETG	6.2 to 7.2
  EMF_MAX_LONG_LETG_INSR	Long move max EMF when inserting LETG	7.0
  EMF_MAX_LONG_LETG_RETR	Long move max EMF when retracting LETG	7.0
  EMF_MIN_SHORT_HETG_INSR	Short move min EMF when inserting HETG	n/a
  EMF_MIN_SHORT_HETG_RETR	Short move min EMF when retracting HETG	n/a
  EMF_MIN_SHORT_LETG_INSR	Short move min EMF when inserting LETG	4.0 to 5.5
  EMF_MIN_SHORT_LETG_RETR	Short move min EMF when retracting LETG	4.0 to 5.5
  EMF_AVG_SHORT_HETG_INSR	Short move avg EMF when inserting HETG	n/a
  EMF_AVG_SHORT_HETG_RETR	Short move avg EMF when retracting HETG	n/a
  EMF_AVG_SHORT_LETG_INSR	Short move avg EMF when inserting LETG	4.3 to 5.8
  EMF_AVG_SHORT_LETG_RETR	Short move avg EMF when retracting LETG	5.0 to 5.7
  EMF_MAX_SHORT_HETG_INSR	Short move max EMF when inserting HETG	n/a
  EMF_MAX_SHORT_HETG_RETR	Short move max EMF when retracting HETG	n/a
  EMF_MAX_SHORT_LETG_INSR	Short move max EMF when inserting LETG	5.6 to 6.5
  EMF_MAX_SHORT_LETG_RETR	Short move max EMF when retracting LETG	5.8 to 6.3
  OBC_ERRS_HETG_INSR	Number of OBC errors when inserting HETG	0
  OBC_ERRS_HETG_RETR	Number of OBC errors when retracting HETG	0
  OBC_ERRS_LETG_INSR	Number of OBC errors when inserting LETG	0 to 14
  OBC_ERRS_LETG_RETR	Number of OBC errors when retracting LETG	0 to 6