MTA Monitoring Report 03/15/02 - 03/21/02

Archive of monthly reports

Radiation

The following alerts were issued:

Date: Mon, 18 Mar 2002 05:01:03 (EST)
A Radiation violation of P3 (130Kev) has been observed by ACE
Observed = 3.6267e+08 (limit = fluence of 3.6e8 particles/cm2-ster-MeV within 2 hours)

Date: Mon, 18 Mar 2002 07:20:02 (EST)
ACIS fluence = 1.06e+09 p/(cm^2-sr-MeV), in previous 22.6 hrs
Above limit=1.0E+09 at 112 - 187 keV.
Latest ACIS proton flux = 2.19e+05 p/(cm^2-s-sr-MeV).

Date: Mon, 18 Mar 2002 08:35:02 (EST)
ACIS fluence = 3.03e+09 p/(cm^2-sr-MeV), in previous 23.8 hrs
Above limit=3.0E+09 at 112 - 187 keV.
Latest ACIS proton flux = 4.29e+05 p/(cm^2-s-sr-MeV).

CTI Trend

Average of ACIS-I CCDs (MnKa) slope 1.113e-8 CTI/day
Detrended slope 1.084e-8 CTI/day

ACIS Warm Pixels

The following pixels consistently showed a bias level more than 5 sigma away the chip's mean level during this period.
We suspect some of the recurring bad pixels may be due to biases which are taken just after perigee, when the focal plane is somewhat warm. For more information see the link above and MTA monthly reports.

	CCD0	CCD2	CCD3	CCD4	CCD5	CCD6	CCD7	CCD8	CCD9
New this week/ Reappeared					(514,786) (514,871)
Previously reported - still observed	(995,200)	(483,816)	(811,637)	(227,467)	(1-3,775-1024) (262,565) (232-245,313) (509,spurious rows) (510-511,775-1024) (512,775) (513,776-1024) (514,850) (514,940) (607,281) (1022,166)	(360,249) (766,501)	(1-3,1-114) (1-3,775-1024) (4,spurious rows) (509,spurious rows) (510-511,775-1024) (512,775) (513-515,775-1024) (516,spurious rows) (1021,1) (1021,198) (1021,408) (1021,684) (1022,775)	(62,482) (587,544) (952,1)	(150,373)
Previously reported - not observed during this period

ACIS Focal Plane Temperature

Day (DOY)	Temp (C)	Width (Days)
73.91	-114.54	0.36
76.60	-110.17	0.40
79.17	-113.41	0.44

SIM Movements

Telemetry

FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 283.3 (upper yellow limit: 282.0)
TSCIUSF1 (SC-IUS FITTING-1 TEMP): yellow warning. Max: 349.7 (upper yellow limit: 346.9)
TSCIUSF8 (SC-IUS FITTING-8 TEMP): yellow warning. Max: 349.7 (upper yellow limit: 346.9)
TFSSBKT1 (FSS BRACKET-1 TEMP +Y): yellow warning. Max: 333.98 (upper yellow limit: 333.0)
TFSSBKT2 (FSS BRACKET-2 TEMP -Y): yellow warning. Max: 333.98 (upper yellow limit: 333.0)

HKBBIASLEAKI (HK B bias leakage current): yellow warning. Max: 0.64 (upper yellow limit: 0.50)
TEPHIN (EPHIN SENSOR HOUSING TEMP): yellow warning. Max: 302.09 (upper yellow limit: 300.2)
5EPHINT (EPHIN TEMP): yellow warning. Max: 301.95 (upper yellow limit: 300.0)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 283.6 (upper yellow limit: 282.0)
TSCIUSF1 (SC-IUS FITTING-1 TEMP): red warning. Max: 351.27 (upper red limit: 349.7)
TSCIUSF8 (SC-IUS FITTING-8 TEMP): red warning. Max: 351.27 (upper red limit: 349.7)
TFSSBKT1 (FSS BRACKET-1 TEMP +Y): yellow warning. Max: 333.98 (upper yellow limit: 333.0)
TFSSBKT2 (FSS BRACKET-2 TEMP -Y): yellow warning. Max: 333.98 (upper yellow limit: 333.0)
TMZP_CNT (-Z PNL TEMP:CENTER): yellow warning. Max: 327.66 (upper yellow limit: 327.4)
OOBTHR56 (RT 158: TFTE AFT CYLINDER): yellow warning. Max: 288.83 (upper yellow limit: 288.6)

1CRAT (COLD RADIATOR TEMP. A): yellow warning. Max: 157.2 (upper yellow limit: 148.16)
1CRBT (COLD RADIATOR TEMP. B): yellow warning. Max: 157.2 (upper yellow limit: 148.16)
1CRATC (COLD RADIATOR TEMP. A): yellow warning. Max: -115.95 (upper yellow limit: -125.0)
1CRBTC (COLD RADIATOR TEMP. B): yellow warning. Max: -115.95 (upper yellow limit: -125.0)

Nominal HETG Insertion/Retraction

1DPICACU (DPA INPUT CURRENT A): yellow warning. Min: 0.40 (lower yellow limit: 0.9)
1DPICBCU (DPA INPUT CURRENT B): yellow warning. Min: 0.25 (lower yellow limit: 0.9)
1DPPWRA (DPA POWER A): yellow warning. Min: 11.82 (lower yellow limit: 23.4)
1DPPWRB (DPA POWER B): yellow warning. Min: 7.49 (lower yellow limit: 18.2)
HKBBIASLEAKI (HK B bias leakage current): yellow warning. Max: 0.56 (upper yellow limit: 0.50)
TEPHIN (EPHIN SENSOR HOUSING TEMP): yellow warning. Max: 301.06 (upper yellow limit: 300.2)
5EPHINT (EPHIN TEMP): yellow warning. Max: 300.67 (upper yellow limit: 300.0)
OOBTHR56 (RT 158: TFTE AFT CYLINDER): yellow warning. Max: 288.74 (upper yellow limit: 288.6)

1CRAT (COLD RADIATOR TEMP. A): yellow warning. Max: 152.4 (upper yellow limit: 148.16)
1CRBT (COLD RADIATOR TEMP. B): yellow warning. Max: 152.4 (upper yellow limit: 148.16)
1DPICACU (DPA INPUT CURRENT A): yellow warning. Min: 0.40 (lower yellow limit: 0.9)
1DPICBCU (DPA INPUT CURRENT B): yellow warning. Min: 0.26 (lower yellow limit: 0.9)
1DPPWRA (DPA POWER A): yellow warning. Min: 11.93 (lower yellow limit: 23.4)
1DPPWRB (DPA POWER B): yellow warning. Min: 7.68 (lower yellow limit: 18.2)
1CRATC (COLD RADIATOR TEMP. A): yellow warning. Max: -120.75 (upper yellow limit: -125.0)
1CRBTC (COLD RADIATOR TEMP. B): yellow warning. Max: -120.75 (upper yellow limit: -125.0)
OOBTHR56 (RT 158: TFTE AFT CYLINDER): yellow warning. Max: 288.85 (upper yellow limit: 288.6)
Nominal HETG Insertion

IRUs

• Gyro Bias Drift
• Gyro Bias Drift Histogram

Recent Observations

All data reported below are based on manual processing. "Prob" means that there was probably bad time data included in the manual runs.

Trending

Trends last reported on Jan 03.

This is a Beta version of a new trending presentation which uses the MTA Databases. The databases currently contain values for the period July 2001 through March 2002. We are aware of several bugs which are being worked, so there is no need to report bugs, but comments on the new format are welcome to Scott or Brad.

Provided below are trending and limit predictions for various Chandra subsystems. For each msid the data are plotted and the mean, standard deviation, and first and second derivatives are calculated. Two plots are displayed for each msid. Plot 1 includes data points, a first degree fit line (first derivative), and a curve representing the data smoothed over a suitable period (10 or 30 days in most cases). Plot 2 shows the point-to-point slopes of the smoothed curve and a fit line (second derivative) to this data.

• HRMA Thermal

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4RT555T	2.943e+02	6.892e-06	2.728e-08	0.000e+00	K	RT 555 - HRMA TEMP
4RT556T	2.940e+02	4.866e-02	-1.423e-03	0.000e+00	K	RT 556 - HRMA TEMP
4RT557T	2.940e+02	0.000e+00	-2.228e-11	0.000e+00	K	RT 557 - HRMA TEMP
4RT558T	2.940e+02	0.000e+00	-2.228e-11	0.000e+00	K	RT 558 - HRMA TEMP
4RT559T	2.940e+02	0.000e+00	-2.228e-11	0.000e+00	K	RT 559 - HRMA TEMP
4RT560T	2.946e+02	0.000e+00	2.814e-12	0.000e+00	K	RT 560 - HRMA TEMP
4RT561T	2.936e+02	5.373e-02	1.924e-02	-5.896e-02	K	RT 561 - HRMA TEMP
4RT562T	2.950e+02	0.000e+00	-7.278e-11	0.000e+00	K	RT 562 - HRMA TEMP
4RT563T	2.951e+02	3.670e-02	-7.557e-02	0.000e+00	K	RT 563 - HRMA TEMP
4RT564T	2.946e+02	0.000e+00	7.596e-11	0.000e+00	K	RT 564 - HRMA TEMP
4RT565T	2.940e+02	0.000e+00	-2.228e-11	0.000e+00	K	RT 565 - HRMA TEMP
4RT567T	2.955e+02	3.286e-02	-7.841e-03	0.000e+00	K	RT 567 - HRMA TEMP
4RT568T	2.861e+02	1.392e-01	2.944e-01	-1.115e+00	K	RT 568 - HRMA TEMP
4RT569T	2.941e+02	1.237e-03	-3.193e-05	0.000e+00	K	RT 569 - HRMA TEMP
4RT570T	2.941e+02	7.939e-07	-1.613e-08	0.000e+00	K	RT 570 - HRMA TEMP
4RT575T	2.855e+02	2.455e-01	5.740e-01	-8.908e-01	K	RT 575 - OB CONE TEMP
4RT576T	2.817e+02	3.210e-04	1.183e-05	0.000e+00	K	RT 576 - OB CONE TEMP
4RT577T	2.842e+02	2.966e-01	5.362e-01	-1.725e+00	K	RT 577 - OB CONE TEMP
4RT578T	2.838e+02	1.433e-01	1.350e-01	-9.662e-02	K	RT 578 - OB CONE TEMP
4RT579T	2.834e+02	1.925e-01	-1.772e-01	4.106e-01	K	RT 579 - OB CONE TEMP
4RT580T	2.833e+02	2.847e-01	7.009e-02	-1.477e+00	K	RT 580 - OB CONE TEMP
4RT581T	2.842e+02	8.171e-01	-2.090e-02	-3.542e-01	K	RT 581 - OB CONE TEMP



• HRMA Strut Temperatures

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4RT582T	2.840e+02	0.000e+00	3.429e-11	0.000e+00	K	RT 582 - STRUT TEMP
4RT583T	2.862e+02	7.894e-02	1.377e-01	-2.779e-01	K	RT 583 - STRUT TEMP
4RT584T	2.878e+02	2.416e-01	6.098e-01	-2.671e+00	K	RT 584 - STRUT TEMP
4RT585T	2.880e+02	2.592e-01	6.641e-01	-2.775e+00	K	RT 585 - STRUT TEMP
4RT586T	2.867e+02	7.848e-02	1.413e-01	-1.321e-01	K	RT 586 - STRUT TEMP
4RT587T	2.851e+02	1.213e-01	8.182e-03	-7.377e-01	K	RT 587 - STRUT TEMP
4RT588T	2.833e+02	1.271e-01	-3.219e-02	0.000e+00	K	RT 588 - STRUT TEMP
4RT589T	2.831e+02	1.969e-01	-2.131e-02	0.000e+00	K	RT 589 - STRUT TEMP
4RT590T	2.851e+02	1.083e+00	2.209e+00	-1.262e+01	K	RT 590 - STRUT TEMP
4RT591T	2.856e+02	1.120e+00	2.356e+00	-1.315e+01	K	RT 591 - STRUT TEMP
4RT592T	2.831e+02	2.302e-01	-1.567e-02	0.000e+00	K	RT 592 - STRUT TEMP
4RT593T	2.833e+02	1.258e-01	-1.364e-02	0.000e+00	K	RT 593 - STRUT TEMP
4RT594T	2.875e+02	5.114e-02	3.531e-02	0.000e+00	K	RT 594 - TFTE TEMP
4RT595T	2.829e+02	1.227e-01	2.329e-01	-3.038e-01	K	RT 595 - TFTE TEMP
4RT596T	2.807e+02	1.466e-01	-1.017e-01	9.482e-02	K	RT 596 - TFTE TEMP
4RT597T	2.848e+02	5.216e-01	1.364e+00	-4.375e+00	K	RT 597 - TFTE TEMP
4RT598T	2.846e+02	5.806e-01	1.541e+00	-4.346e+00	K	RT 598 - TFTE TEMP



• OB FWD Bulkhead Temperatures

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4RT700T	2.859e+02	2.676e-01	6.647e-01	-1.744e+00	K	RT 700 - OB BULKHEAD TEMP
4RT701T	2.847e+02	1.988e-01	5.040e-01	-6.642e-01	K	RT 701 - OB BULKHEAD TEMP
4RT702T	2.846e+02	1.840e-01	4.171e-01	-1.485e+00	K	RT 702 - OB BULKHEAD TEMP
4RT703T	2.843e+02	1.423e-01	2.796e-01	-1.276e+00	K	RT 703 - OB BULKHEAD TEMP
4RT704T	2.843e+02	1.348e-01	1.327e-01	-3.878e-01	K	RT 704 - OB BULKHEAD TEMP
4RT705T	2.804e+02	8.715e-03	2.004e-03	0.000e+00	K	RT 705 - OB BULKHEAD TEMP
4RT706T	2.791e+02	0.000e+00	1.054e-11	0.000e+00	K	RT 706 - OB BULKHEAD TEMP
4RT707T	2.827e+02	1.879e-03	9.474e-06	0.000e+00	K	RT 707 - OB BULKHEAD TEMP
4RT708T	2.830e+02	1.217e-02	2.567e-03	0.000e+00	K	RT 708 - OB BULKHEAD TEMP
4RT709T	2.842e+02	1.266e-01	2.435e-01	-1.203e-01	K	RT 709 - OB BULKHEAD TEMP
4RT710T	2.847e+02	2.044e-01	5.202e-01	-1.086e+00	K	RT 710 - OB BULKHEAD TEMP
4RT711T	2.848e+02	2.030e-01	4.711e-01	-1.212e+00	K	RT 711 - OB BULKHEAD TEMP



• Pre Collimator Temperatures

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4PRT1AT	2.126e+02	5.852e-01	3.825e-02	2.411e-01	K	IP A: PRE-COLLIMATOR PRT 1 TEMPERATURE
4PRT1BT	1.477e+02	0.000e+00	-1.267e-11	0.000e+00	K	IP B: PRE-COLLIMATOR PRT 1 TEMPERATURE
4PRT2AT	2.113e+02	5.458e-01	-1.190e-02	3.526e-01	K	IP A: PRE-COLLIMATOR PRT 2 TEMPERATURE
4PRT2BT	1.473e+02	2.737e-04	-4.964e-06	0.000e+00	K	IP B: PRE-COLLIMATOR PRT 2 TEMPERATURE
4PRT3AT	2.579e+02	2.458e-01	-1.237e-01	-1.152e-02	K	IP A: PRE-COLLIMATOR PRT 3 TEMPERATURE
4PRT3BT	1.473e+02	2.737e-04	-4.964e-06	0.000e+00	K	IP B: PRE-COLLIMATOR PRT 3 TEMPERATURE
4PRT4AT	2.149e+02	5.702e-01	1.062e-01	6.395e-01	K	IP A: PRE-COLLIMATOR PRT 4 TEMPERATURE
4PRT4BT	1.477e+02	3.732e-02	1.364e-02	0.000e+00	K	IP B: PRE-COLLIMATOR PRT 4 TEMPERATURE
4PRT5AT	2.085e+02	6.578e-01	-5.880e-03	3.470e-01	K	IP A: PRE-COLLIMATOR PRT 5 TEMPERATURE
4PRT5BT	1.473e+02	2.737e-04	-4.964e-06	0.000e+00	K	IP B: PRE-COLLIMATOR PRT 5 TEMPERATURE