SCS 107 ran on Chandra at 2003:128:20:08, due to a RADMON trip, due to high EPHIN rates on E1300 and P4GM. SCS 107 ran nominally and the instruments are safed correctly. The radiation trip seems to be due to another early radiation belt event. The SCS107 trip happened 13 hours and 1 minute before perigee.
CTI analysis is now computed with "detrending":
Detrend CTI = Measured CTI + S3 amplitude reject rate * Detrend factor.
Average of ACIS-I CCDs (MnKa) slope 8.511e-9 CTI/day
Detrended slope 8.732e-9 CTI/day
CCD0 | CCD1 | CCD2 | CCD3 | CCD4 | CCD5 | CCD6 | CCD7 | CCD8 | CCD9 | |
---|---|---|---|---|---|---|---|---|---|---|
New this week/ Reappeared | (247,364),(227,467) |
(357,303),(263,317) (367,511),(352,544) (383,586),(383,587) (258,797),(669,577) | (360,249) | (199,678),(336,412) | (150, 374 | |||||
Previously reported - still observed |
(226,565)(280,313) (341,427)(357,303) (369,376)(607,281) (258,797)(383,586) | |||||||||
Previously reported - not observed during this period | (587,544) | |||||||||
Flickering pixels | (811,637) |
(263,317) (352,544),(367,511) | (360,249) | (199,678) (335,412) |
(1024,454) (1024,455),(1024,456) | |||||
Warm column candidates |
Day (DOY) | Temp (C) | Width (Days) | |
---|---|---|---|
124.14 | -114.05 | 0.28 | |
126.29 | -118.74 | 0.91 | |
126.89 | -117.61 | 0.24 | |
128.84 | -119.06 | 0.48 |
MSID | 05/02 | 05/03 | 05/04 | 05/05 | 05/06 | 05/07 | 05/08 | yellow limits (lower) upper | red limits (lower) upper | Units | Description |
1CRAT | 152.40 | 150.00 | (143.16) 148.16 | (131.16) 183.16 | K | #COLD RADIATOR TEMP. A | |||||
1CRBT | 152.40 | 150.00 | (143.16) 148.16 | (131.16) 183.16 | K | #COLD RADIATOR TEMP. B | |||||
1DPICACU | (0.40) | (0.90) 1.75 | (-1000) 1000 | AMP | #DPA INPUT CURRENT A | ||||||
1DPICBCU | (0.44) | (0.70) 1.75 | (-1000) 1000 | AMP | #DPA INPUT CURRENT B | ||||||
1DPPWRA | (11.82) | (23.4) 59.5 | (-999) 999 | W | # DPA POWER A | ||||||
1DPPWRB | (7.49) | (18.2) 59.5 | (-999) 999 | W | # DPA POWER B | ||||||
TEPHIN | 302.69 | 303.29 | (260.8) 300.2 | (258.0) 303.0 | K | #EPHIN SENSOR HOUSING TEMP | |||||
5EPHINT | 302.80 | 303.23 | 300.25 | (261.0) 300.0 | (258.0) 303.0 | K | #EPHIN TEMP | ||||
HKBBIASLEAKI | 0.65 | 0.70 | 0.53 | (-100.0) 0.5 | (-200.0) 0.7 | uA | #EPHIN HOUSEKEEPING B-BIAS: LEAKAGE CURRENT (5EHSE500) | ||||
HKEBIASLEAKI | 31.66 | (-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 | 5.91 | 6.15 | 5.52 | (3.66) 5.24 | (3.46) 5.44 | AMP | #HK 27 Volts Rail - Current | ||||
HKP6V | 44.52 | (5.76) 5.86 | (5.74) 5.88 | V | #HK 6 Volts Rail - Voltage | ||||||
TEMPHOUS | 288.35 | 288.35 | 288.35 | (4.85) 288.0 | (-22.95) 290.0 | C | #temp 2 - AC housing (AACH1T) | ||||
TEMPPRIM | (-54.45) 288.0 | (-58.45) 290.0 | C | #temp 3 - lens cell (AAOTALT) | |||||||
AAOTH2MT | 287.76 | 287.76 | 287.76 | (286.50) 287.53 | (286.40) 287.63 | K | #AC OPT TEL ASSY SECONDARY MIRROR TEMP (HRMA) | ||||
AIRU1G1I | 170.40 | 180.00 | 151.20 | 153.60 | 172.80 | 163.20 | 196.80 | (-5.0) 150 | (-10.0) 200.0 | MAMP | IRU-1 GYRO #1 CURRENT |
TPZLGABM | (207.85) | (208.0) 321.9 | (206.0) 388.0 | K | #+Z LOW-GAIN ANTENNA BOOM TEMP | ||||||
OOBTHR56 | 289.28 | 289.37 | 289.01 | 288.83 | (281.9) 288.6 | (250.2) 308.0 | K | #RT 158: OBA CONE |
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. The procedure and products to perform a swap to IRU-2 were approved last week by the Flight Director Board and are available in the event they are needed.
Reaction wheel speeds have occasionally dropped below the limit of 52.4 rad/s
due to our increased momentum envelope.
"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 |
---|---|---|---|---|---|
4114 | ACIS-S | NONE | F17208-004 | OK | OK |
3761 | ACIS-S | HETG | DOAR21 | OK /Not yet avail. | OK |
3963 | ACIS-S | NONE | SDSSJ222845-075755 | OK | OK |
3515 | ACIS-I | NONE | RCW103 | OK | OK |
3745 | ACIS-S | HETG | ETACARINAE | OK /OK | OK |
3803 | ACIS-S | HETG | H1743-322 | OK /Not yet avail. | OK |
3997 | ACIS-S | NONE | NGC4450 | OK | OK |
3837 | ACIS-I | NONE | TYCHO'SSNR | OK | OK |
4014 | ACIS-S | NONE | NGC4102 | OK | OK |
4356 | HRC-I | NONE | ACISBACKGROUND | OK | OK |
Followings are plots for 1DPAMYT(DPA -Y PANEL TEMP) and 1DPAMZT (DPA -Z PANEL TEMP) of acis temperature for the last 3 months (for the entire mission, see the table below). These show the limit violation due to the extended Orion pointing at about 140 degrees at about DOM 1270.
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
1CBAT | 2.110e+02 | 1.584e-02 | 3.306e-03 | 1.742e-06 | K | CAMERA BODY TEMP. A |
1CBBT | 2.130e+02 | NaN | 0.000e+00 | 1.754e-06 | K | CAMERA BODY TEMP. B |
1CRAT | 1.454e+02 | 8.547e-01 | 4.843e-03 | 1.579e-05 | K | COLD RADIATOR TEMP. A |
1CRBT | 1.458e+02 | 1.156e+00 | 1.055e-02 | 2.822e-04 | K | COLD RADIATOR TEMP. B |
1DACTBT | 2.569e+02 | 1.394e+00 | 3.664e-03 | 1.765e-04 | K | DA COLLIMATOR TEMP. B |
1DEAMZT | 2.813e+02 | 1.627e+00 | 2.929e-02 | -7.345e-05 | K | DEA -Z PANEL TEMP |
1DPAMYT | 2.827e+02 | 1.728e+00 | 3.223e-02 | 1.006e-04 | K | DPA -Y PANEL TEMP |
1DPAMZT | 2.868e+02 | 1.229e+00 | 2.439e-02 | 6.449e-05 | K | DPA -Z PANEL TEMP |
1OAHAT | 2.440e+02 | 9.395e-01 | 5.307e-03 | 5.683e-05 | K | OPEN ACTUATOR HOUSING TEMP. A |
1OAHBT | 2.402e+02 | 6.751e-01 | 3.639e-03 | 3.412e-05 | K | OPEN ACTUATOR HOUSING TEMP. B |
1PDEAAT | 3.027e+02 | 5.347e+00 | -3.434e-02 | 1.385e-03 | K | PSMC DEA PS A TEMP |
1PDEABT | 2.932e+02 | 4.905e+00 | -3.348e-02 | 1.264e-03 | K | PSMC DEA PS B TEMP |
1PIN1AT | 2.877e+02 | 4.470e+00 | -2.046e-02 | 8.774e-04 | K | PSMC TEMP 1A |
1WRAT | 1.917e+02 | 6.989e-02 | 3.801e-03 | 1.201e-06 | K | WARM RADIATOR TEMP. A |
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
2CHTRPZT | 2.895e+02 | 1.930e+00 | 9.370e-03 | 3.139e-04 | K | CENTRAL ELECTRONICS BOX TEMP |
2CONDMXT | 2.862e+02 | 1.889e+00 | 1.683e-02 | 3.737e-04 | K | CONDUIT -X FACE TEMPERATURE |
2DCENTRT | 2.869e+02 | 1.815e+00 | 4.915e-03 | 3.891e-04 | K | DETECTOR HOUSING TEMP 2 |
2DTSTATT | 2.872e+02 | 1.768e+00 | 9.469e-03 | 3.214e-04 | K | DETECTOR HOUSING TEMP 1 |
2FHTRMZT | 2.882e+02 | 1.818e+00 | 1.541e-02 | 4.198e-04 | K | FRONT END ELECTRONICS BOX TEMPERATURE |
2FRADPYT | 2.848e+02 | 1.792e+00 | 1.806e-02 | 5.329e-04 | K | FRONT END ASSEMBLY +Y AT RADIATOR CENTER TEMP |
2PMT1T | 2.870e+02 | 2.124e+00 | 8.024e-03 | 8.483e-04 | K | PMT 1 TEMPERATURE |
2UVLSPXT | 2.831e+02 | 2.094e+00 | -1.104e-02 | 4.012e-04 | K | UV LIGHT SHIELD NEXT TO SNOUT TEMP |