MTA Monitoring Report 10/26/01 - 11/01/01

Archive of Monthly reports

Radiation

No alerts during this period, but active sunspot regions bear watching.

CTI Trend

Average of ACIS-I CCDs (MnKa) slope 1.364e-8 CTI/day
Detrended slope 1.258e-8 CTI/day

ACIS Warm Pixels

	CCD0	CCD2	CCD3	CCD4	CCD5	CCD6	CCD7	CCD8
New this week/ Reappeared	(995,200)				(514,971)
Previously reported - still observed		(483,816) (526,66)		(247,364)	(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)
301.60	-118.58	0.26
304.27	-118.41	0.31

SIM Movements

Telemetry

1DPPWRB (DP Power): red warning. Min: 7.68 (lower red limit: 8.0)

FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 282.6 (upper yellow limit: 282.0)

HETG Insertion

1PDEAAT (PSMC DEA POWER SUPPLY TEMP A): yellow warning. Max: 316.39 (upper yellow limit: 316.0)
1PDEAATC (Acis Thermal): yellow warning. Max: 43.24 (upper yellow limit: 43.0)
3RCTUBPT (RCTU BASEPLATE (+X)): red warning. Max: 281.32 (upper red limit: 278.8)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 284.2 (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: 355.98 (upper red limit: 349.7)
TSCIUSF8 (SC-IUS FITTING-8 TEMP): red warning. Max: 355.98 (upper red limit: 349.7)

HETG Retraction

1DPPWRB (DP Power): red warning. Min: 7.29 (lower red limit: 8.0)

TEPHIN (EPHIN SENSOR HOUSING TEMP): yellow warning. Max: 300.55 (upper yellow limit: 300.2)
5EPHINT (EPHIN TEMP): yellow warning. Max: 300.25 (upper yellow limit: 300.0)

Recent Observations

Trending

No significant changes since last reported ( 08/09/01- 08/15/011 weekly).

• ACIS Thermal Control

  MSID	DESCRIPTION	COMMENT
  1CBAT	CAMERA BODY TEMP. A	flat @210.79
  1CBBT	CAMERA BODY TEMP. B	flat @213.26
  1CRAT	COLD RADIATOR TEMP. A	flat @145, some scatter up to 148
  1CRBT	COLD RADIATOR TEMP. B	flat @145, some scatter up to 148
  1DACTBT	DA COLLIMATOR TEMP. B	slightly upward trend,between 254 and 258
  1DEAMZT	DEA -Z PANEL TEMP	scattered around 281 between 279 and 283
  1DPAMYT	DPA -Y PANEL TEMP	slightly upward trend between 281 and 284
  1DPAMZT	DPA -Z PANEL TEMP	slightly upward trend between 285.5 and 287.0
  1MAHCAT	DOOR CLOSE ACTUATOR TEMP A	around 714.3, about 0.5 drop around DOM 450
  1MAHCBT	DOOR CLOSE ACTUATOR TEMP B	around 713.8
  1MAHOAT	DOOR OPEN ACTUATOR TEMP A	around 714, about 0.5 drop around DOM 450
  1MAHOBT	DOOR OPEN ACTUATOR TEMP B	around 712.7, about 0.5 drop around DOM 450
  1OAHAT	OPEN ACTUATOR HOUSING TEMP. A	lower boundary at 243.1, scatter upward to 244.5
  1OAHBT	OPEN ACTUATOR HOUSING TEMP. B	concentrated around 240.6, but scattered between 239.8 and 241.0
  1PDEAAT	PSMC DEA PS A TEMP	upward trend, scattered between 294 and 306
  1PDEABT	PSMC DEA PS B TEMP	upward trend, scattered between 286 and 296
  1PIN1AT	PSMC TEMP 1A	slightly upward trend, scattered between 282 and 290
  1WRAT	WARM RADIATOR TEMP. A	@191.15, some scatter upward
  1WRBT	WARM RADIATOR TEMP. B	@191.15, some scatter

  
  
• ACIS Electronics Side A

  MSID	DESCRIPTION	COMMENT
  1DAHACU	DA HEATER CURRENT A	@0.0
  1DAHAVO	DA HEATER VOLTAGE A	@0.0
  1DAHHAVO	DA HOUSING HEATER INPUT VOLTAGE A	@0.0
  1DE28AVO	DEA +28V INPUT A	annual cycle, range 29 to 30.2, peaked around DOM 700, the max is lower than the previous cycle
  1DEICACU	DEA INPUT CURRENT A	scattered between 1.0 and 1.8
  1DEN0AVO	DEA -6V VOLTAGE A	scattered between -6.4 and -6.2
  1DEN1AVO	DEA -15V VOLTAGE A	scattered between -16.2 and -15.6
  1DEP0AVO	DEA +6V VOLTAGE A	scattered between 6.1 and 6.2
  1DEP1AVO	DEA +15V ANALOG A	scattered between 15.5 and 16.2
  1DEP2AVO	DEA +24V ANALOG A	scattered between 25.0 and 25.2
  1DEP3AVO	DEA +28V ANALOG A	scattered between 30.5 and 30.7
  1DP28AVO	DPA +28V INPUT A	annual cycle, range 29 to 30.2, peaked around DOM 700, the max is lower than the previous cycle
  1DPICACU	DPA INPUT CURRENT A	periodic trend +/- 0.5 around 1.39
  1DPP0AVO	DPA +5V ANALOG A	around 5.30

  
  
• ACIS Electronics Side B

  MSID	DESCRIPTION	COMMENT
  1DAHBCU	DA HEATER CURRENT B	around 0.55, slightly downward trend
  1DAHBVO	DA HEATER VOLTAGE B	scattered between 7.6 and 8.5, slightly downward trend
  1DAHHBVO	DA HOUSING HEATER INPUT VOLTAGE B	annual cycle, range 28.8 to 30.0, peaked around DOM 700, the max is lower than the previous cycle
  1DE28BVO	DEA +28V INPUT B	annual cycle, range 29.2 to 30.4, peaked around DOM 700, the max is lower than the previous cycle
  1DEICBCU	DEA INPUT CURRENT B	around 16.38
  1DEN0BVO	DEA -6V VOLTAGE B	@-0.16
  1DEN1BVO	DEA -15V VOLTAGE B	@-0.39
  1DEP0BVO	DEA +6V VOLTAGE B	around 0.07 - 0.08
  1DEP1BVO	DEA +15V ANALOG B	around 0.19
  1DEP2BVO	DEA +24V ANALOG B	around 0.29 - 0.30
  1DEP3BVO	DEA +28V ANALOG B	around 0.37
  1DP28BVO	DEA +28V ANALOG B	annual cycle, range 29.2 to 30.6, peaked around DOM 700, the max is lower than the previous cycle
  1DPICBCU	DPA INPUT CURRENT B	periodic trend +/- 0.5 around 1.1 8
  1DPP0BVO	DPA +5V ANALOG B	around 5.26 - 5.27

  
  
• ACIS Mechanism Controller

  MSID	DESCRIPTION	COMMENT
  1HOPRAPR	DIFFERENTIAL HOUSING PRESSURE A	@ -2.83
  1HOPRBPR	DIFFERENTIAL HOUSING PRESSURE B	@ -2.55