Chandra X-Ray Observatory
	(CXC)

Short-term Schedule

Every week an observing request (OR) list is generated from the long term schedule (LTS) target list for that week, plus some unconstrained (pool) targets. This OR list is over-subscribed to allow an efficient schedule to be generated. The short-term schedule consists of those targets from the OR which will actually be observed; those targets not scheduled are then returned to the pool to be selected for future weeks.

The short-term schedule is the plan for a week's observing time. If there are no interruptions, all observations will be carried out close to the times listed. However, schedules can be interrupted by TOO observations, by solar-flare particle events, and by operational difficulties. This schedule is not a guarantee that the observation will occur when indicated.

NB: RA and DEC listings are for the star tracker, not the target position!

The RA and DEC on the short term pages are derived from the spacecraft quaternion. So the coordinates are that of the aspect camera, not the HRMA. The offset between the two coordinate systems is roughly 1.5 arcminutes in both y and z.

There is a link to previous weeks' short-term schedules at the bottom of this page.

FEB2220A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
801890    23165 0              A1240 2020:053:16:01:37.847  13.0 ACIS-I NONE 170.9026  43.1063 147.99 144.51  98.53 dss pspc rass
201281    22312 2 Eta Carinae deep min 2020:053:20:30:11.641  30.0 ACIS-S NONE 161.2220 -59.6914 351.96 109.86 163.78 dss pspc rass
801835    21553 0   SPT-CLJ2335-5434 2020:054:05:20:40.399  26.5 ACIS-I NONE 353.8614 -54.5552 204.68  46.67  67.41 dss pspc rass
801905 P1 23169 0 RMJ100750.4+003154.7 2020:054:13:25:17.323  10.0 ACIS-I NONE 151.9638   0.5216 337.22 169.66 123.14 dss pspc rass
503174    22451 0         GRB200219A 2020:054:16:54:23.260  19.4 ACIS-S NONE 342.6737 -59.1073 188.49  49.36 121.20 dss pspc rass
201329    23164 1            Brey 84 2020:054:22:50:33.860  22.1 ACIS-S HETG  84.6209 -69.0829 302.95  87.11  44.02 dss pspc rass
 ----     47434       CAL-ER (CTI07) 2020:055:05:33:57.261   3.0   --    --  152.0000   3.0000 326.06 171.81  87.93   
 ----     47433       CAL-ER (PER03) 2020:055:09:36:41.766   3.0   --    --   15.8298 -46.3004 234.85  49.41 122.38   
 ----     47432       CAL-ER (PER02) 2020:055:11:07:11.800   3.0   --    --    9.0000  35.0000 319.60  54.02 112.50   
 ----     47431       CAL-ER (PER05) 2020:055:12:39:43.874   3.0   --    --  155.4388  14.4040 197.15 175.02 121.66   
 ----     47430       CAL-ER (PER04) 2020:055:14:15:53.997   3.0   --    --  154.7390   4.8104 335.12 174.70 138.01   
 ----     47429       CAL-ER (CAL01) 2020:055:16:57:41.587   3.0   --    --  154.7390   4.8104 333.86 174.68   1.26   
590582    22810 2           E0102-72 2020:055:18:32:45.201  15.0 ACIS-S NONE  16.6573 -71.8325 223.04  66.73 108.57 dss pspc rass
704007    22887 0      PMNJ1103-2329 2020:055:23:16:39.185  50.0  HRC-S LETG 165.8907 -23.5066  15.13 145.96  82.80 dss pspc rass
704043    23177 0          LEDA64440 2020:056:13:46:14.351  10.0 ACIS-S NONE 304.5443 -55.6654 137.33  53.27  93.39 dss pspc rass
503086    23049 0     PSR J2022+3842 2020:056:17:16:27.016  50.0 ACIS-S NONE 305.5790  38.6833  41.01  56.67 126.20 dss pspc rass
703918 P1 22530 0    SDSS J1228+3414 2020:057:07:44:43.115  11.4 ACIS-S NONE 187.2570  34.2334 127.11 143.61  87.46 dss pspc rass
703777    22924 0          Spiderweb 2020:057:11:36:13.924  34.1 ACIS-S NONE 175.2108 -26.4925  23.00 141.12 117.06 dss pspc rass
 ----     47428       CAL-ER (CTI01) 2020:057:21:26:50.111   8.0   --    --  162.0000   4.0000  30.45 174.44  34.54   
 ----     47427       CAL-ER (PER11) 2020:058:00:29:14.074   0.5   --    --  154.1091  11.6416 240.62 174.14 151.05   
 ----     47426       CAL-ER (PER06) 2020:058:01:19:09.326  10.0   --    --   30.0000  18.0000 293.81  56.72 117.39   
 ----     47425       CAL-ER (PER07) 2020:058:04:48:03.656   3.0   --    --  156.7164  10.2131 240.17 176.87 120.32   
 ----     47424       CAL-ER (CTI02) 2020:058:08:32:04.479   3.0   --    --   22.1709  22.9215 302.22  52.22 124.63   
801877    23061 0              A1240 2020:058:10:17:42.496  24.8 ACIS-I NONE 170.9091  43.1138 165.98 144.09 108.28 dss pspc rass
503086    21313 0     PSR J2022+3842 2020:058:17:46:18.166  30.0 ACIS-S NONE 305.5788  38.6829  41.01  56.98  88.93 dss pspc rass
 ----     47423       CAL-ER (IAT01) 2020:059:02:42:32.723   0.0   --    --  180.2298  31.5163 137.14 150.35  93.34   
703777    22923 0          Spiderweb 2020:059:03:25:50.245  35.4 ACIS-S NONE 175.2104 -26.4929  23.00 142.31 123.49 dss pspc rass
704014 P1 22630 0            3CR 390 2020:059:13:55:41.754  20.0 ACIS-S NONE 281.4116   9.8755  77.00  61.80 111.79 dss pspc rass
601477 P1 22500 0 J105854.8+080044.1 2020:059:20:10:08.573  20.0 ACIS-S NONE 164.7374   7.9923  88.39 176.31 115.26 dss pspc rass
503202    23172 1          SN2020bvc 2020:060:02:15:03.648  10.0 ACIS-S NONE 218.5089  40.2279 109.99 119.90  72.38 dss pspc rass
503086    23173 0     PSR J2022+3842 2020:060:05:31:31.896  23.2 ACIS-S NONE 305.5804  38.6828  44.01  57.25  64.37 dss pspc rass
 ----     47422       CAL-ER (CTI06) 2020:060:12:39:29.320   1.0   --    --  165.1185  17.6433 160.53 169.58 112.90   
 ----     47421       CAL-ER (CTI03) 2020:060:13:28:50.330   3.0   --    --  164.6229   7.4761  83.88 177.05  77.33   
 ----     47420       CAL-ER (PER08) 2020:060:15:02:00.242   2.0   --    --  289.0000  -2.0000  81.79  52.81 124.49   
 ----     47419       CAL-ER (PER09) 2020:060:16:25:29.100   4.0   --    --   33.0000  12.0000 288.63  54.61 155.91   
 ----     47418       CAL-ER (PER10) 2020:060:18:13:27.496   3.0   --    --  153.1328  11.4229 247.26 170.62 116.13   
 ----     47417       CAL-ER (CTI04) 2020:060:23:25:11.462   1.0   --    --  133.1704  16.3463 256.26 150.44  20.41   
 ----     47416       CAL-ER (CTI05) 2020:061:00:16:44.951   1.0   --    --  171.4060  33.4202 159.53 152.78  87.26   
503086    21314 0     PSR J2022+3842 2020:061:01:29:46.412  25.0 ACIS-S NONE 305.5797  38.6815  44.01  57.39  96.49 dss pspc rass
 ----     47415       CAL-ER (CAL01) 2020:061:09:02:41.106   0.0   --    --  180.2298  31.5163 141.69 150.81  93.35   
703777    23175 0          Spiderweb 2020:061:09:46:49.395  30.6 ACIS-S NONE 175.2095 -26.4938  23.00 143.87 127.30 dss pspc rass
 ----     47414       CAL-ER (CAL01) 2020:061:18:59:56.917   0.0   --    --  180.2298  31.5163 142.51 150.89 127.99   
503086    23174 0     PSR J2022+3842 2020:061:19:36:32.774  25.0 ACIS-S NONE 305.5802  38.6824  44.01  57.57  93.36 dss pspc rass
801877    23176 0              A1240 2020:062:03:08:25.428  25.0 ACIS-I NONE 170.9082  43.1137 165.98 143.45  88.70 dss pspc rass


FEB1720B


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     47449       CAL-ER (PER02) 2020:047:11:09:41.877   2.0   --    --    2.0000 -52.0000 225.91  47.48 126.89   
 ----     47448       CAL-ER (PER01) 2020:047:12:45:00.000   3.0   --    --   23.0000  -2.0000 283.98  54.25  69.97   
 ----     47447       CAL-ER (CTI01) 2020:047:18:35:10.957   2.0   --    --  321.0000  35.2000  11.14  48.30  92.75   
503201    23171 1          SN2020bvc 2020:047:20:31:09.786  10.0 ACIS-S NONE 218.5032  40.2229  93.94 114.00  76.64 dss pspc rass
402165    22400 0        SGRB130603B 2020:047:23:44:03.120  20.0 ACIS-S NONE 172.2162  17.0532 103.00 157.74  48.20 dss pspc rass
704041 P1 23167 0 1RXS J180312.7+04512 2020:048:05:54:24.408  10.0 ACIS-S NONE 270.8095   4.8309  73.14  61.23  96.85 dss pspc rass
402165    23160 0        SGRB130603B 2020:048:09:18:05.695  20.0 ACIS-S NONE 172.2162  17.0533 103.00 158.08  96.85 dss pspc rass
703955    22568 0 SDSS J090915.91+0354 2020:048:15:44:43.976  12.0 ACIS-S NONE 137.2963   3.9254 300.00 164.69 170.12 dss pspc rass
201343    23147 1         Betelgeuse 2020:048:19:32:17.532   5.0  HRC-I NONE  88.7792   7.4237 279.75 119.11  54.27 dss pspc rass
201248    21194 0            tau Cet 2020:048:21:25:52.537  60.0  HRC-S NONE  25.9904 -15.8313 273.00  53.76  66.38 dss pspc rass
703955    23161 0 SDSS J090915.91+0354 2020:049:14:46:13.515  30.7 ACIS-S NONE 137.2962   3.9255 300.00 164.09 111.82 dss pspc rass
 ----     47446       CAL-ER (CTI02) 2020:049:23:41:23.591   3.0   --    --  145.0000  12.0000 267.70 173.53  33.10   
 ----     47445       CAL-ER (PER05) 2020:050:02:30:00.000   2.0   --    --   23.0000  -2.0000 283.23  51.73 121.70   
 ----     47444       CAL-ER (PER04) 2020:050:04:00:00.000   3.0   --    --  145.0000  12.0000 267.04 173.35 121.70   
 ----     47443       CAL-ER (PER03) 2020:050:06:00:00.000   2.0   --    --  140.0000  -7.0000 327.42 158.01  62.99   
 ----     47442       CAL-ER (CTI03) 2020:050:10:06:37.574   2.0   --    --  352.0000 -57.0000 206.72  48.02 111.02   
201329    22691 1            Brey 84 2020:050:11:54:58.671  55.0 ACIS-S HETG  84.6160 -69.0818 302.94  87.02  40.42 dss pspc rass
703955    23162 0 SDSS J090915.91+0354 2020:051:03:46:53.725  38.6 ACIS-S NONE 137.2978   3.9243 300.00 163.01  88.88 dss pspc rass
201329    23163 1            Brey 84 2020:051:15:04:41.778  39.0 ACIS-S HETG  84.6210 -69.0830 302.95  87.01  88.88 dss pspc rass
704042 P1 23168 0     PG_1001p054_s2 2020:052:02:29:41.430  10.0 ACIS-S NONE 151.0513   5.2896 335.61 173.79  87.72 dss pspc rass
201297    22333 1           HD 82443 2020:052:06:02:15.034  15.0 ACIS-S NONE 143.1630  26.9907 202.01 161.03 136.77 dss pspc rass
704040 P1 23166 0            IC 5373 2020:052:10:52:29.254  10.0 ACIS-S NONE   0.0941  32.7844 329.01  50.20 111.32 dss pspc rass
 ----     47441       CAL-ER (CTI04) 2020:052:14:22:05.294   3.0   --    --  150.0000  16.0000 217.74 173.39 123.39   
 ----     47440       CAL-ER (PER09) 2020:052:16:30:00.000   3.0   --    --  146.0000  12.0000 261.59 171.86  43.22   
 ----     47439       CAL-ER (PER08) 2020:052:18:30:00.000   3.0   --    --   25.0000  -1.8500 282.21  51.11 120.70   
 ----     47438       CAL-ER (PER07) 2020:052:20:30:00.000   1.0   --    --  146.0000  12.0000 261.25 171.67 120.70   
 ----     47437       CAL-ER (PER06) 2020:052:21:40:00.000   3.0   --    --   25.0000  -2.0000 282.04  50.93 120.74   
 ----     47436       CAL-ER (CTI05) 2020:053:01:03:28.494   2.0   --    --  320.0000  36.0000  19.27  48.54  99.66   
801890    22965 0              A1240 2020:053:02:49:05.527  33.0 ACIS-I NONE 170.9033  43.1063 147.99 144.49  96.11 dss pspc rass
201348 P1 23170 0 HEP G054.038-00.045 2020:053:12:36:29.213  10.0 ACIS-I NONE 292.8834  18.6506  58.52  50.72  98.53 dss pspc rass
801890    23165 0              A1240 2020:053:16:00:32.904  13.0 ACIS-I NONE 170.9026  43.1063 147.99 144.51  98.53 dss pspc rass
201281    22312 2 Eta Carinae deep min 2020:053:20:29:06.697  30.0 ACIS-S NONE 161.2220 -59.6914 351.96 109.85 163.78 dss pspc rass
801835    21553 0   SPT-CLJ2335-5434 2020:054:05:19:35.456  28.0 ACIS-I NONE 353.8614 -54.5552 204.68  46.67  67.41 dss pspc rass
801905 P1 23169 0 RMJ100750.4+003154.7 2020:054:13:49:07.414  10.0 ACIS-I NONE 151.9638   0.5216 337.13 169.66 123.15 dss pspc rass
801835    23159 0   SPT-CLJ2335-5434 2020:054:17:18:39.378  18.0 ACIS-I NONE 353.8628 -54.5543 204.68  46.74 123.15 dss pspc rass
201329    23164 1            Brey 84 2020:054:22:51:29.978  22.1 ACIS-S HETG  84.6205 -69.0828 302.95  87.11  43.02 dss pspc rass
 ----     47435       CAL-ER (CTI06) 2020:055:05:34:52.581   3.0   --    --  152.0000   3.0000 326.05 171.81  87.94   


Previous weeks' short-term schedules.

Last modified: 02/21/20



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