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.

DEC1619A


Seq #     ObsID Constr.    Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
-----------------------------------------------------------------------------------------------------------------------------------
 ----     47627         CAL-ER (IAT02) 2019:350:03:54:09.382   0.0   --    --  113.8690   9.6774  61.30 147.52  68.23   
100192    22919 1    C/2019 Q4 Borisov 2019:350:04:25:18.131  12.5  HRC-S NONE 175.2016 -24.3832  68.99  78.75  68.83 dss pspc rass
100192    23089 1    C/2019 Q4 Borisov 2019:350:08:02:08.131  12.5  HRC-S NONE 175.2649 -24.5003  68.99  78.79   0.13 dss pspc rass
 ----     47626         CAL-ER (IAT01) 2019:350:12:04:15.621   0.0   --    --  102.1839  16.6622  66.21 161.13  82.31   
201287    22323 0               RW Aur 2019:350:12:53:18.338  28.0 ACIS-S NONE  76.9647  30.4224 225.00 170.88 149.38 dss pspc rass
 ----     47625         CAL-ER (CAL01) 2019:350:21:28:45.438   0.0   --    --  102.1839  16.6622  65.79 161.51 149.78   
100192    23090 1    C/2019 Q4 Borisov 2019:350:22:02:58.960  12.5  HRC-S NONE 175.5119 -24.9505  68.99  78.96  82.69 dss pspc rass
100192    23091 1    C/2019 Q4 Borisov 2019:351:01:39:48.960  12.5  HRC-S NONE 175.5766 -25.0654  68.99  79.01   0.13 dss pspc rass
601482 P1 22505 0   J084219.1+300703.6 2019:351:05:39:34.690  21.2 ACIS-S NONE 130.5899  30.0971  87.80 138.30  71.68 dss pspc rass
 ----     47624         CAL-ER (CTI01) 2019:351:11:54:55.727   3.0   --    --   95.0000  25.0000  97.57 170.28  32.60   
 ----     47623         CAL-ER (PER01) 2019:351:14:00:00.000   6.5   --    --  141.6489  23.2387  77.76 127.97  42.40   
 ----     47622         CAL-ER (PER02) 2019:351:16:12:45.927  11.0   --    --   98.0000  24.0000  90.40 167.81  40.21   
 ----     47621         CAL-ER (PER06) 2019:351:19:28:13.833   2.0   --    --  101.0000  25.0000  93.02 165.19   4.84   
 ----     47620         CAL-ER (PER03) 2019:351:20:42:52.305   1.0   --    --  220.8017   1.7095  56.94  49.68 116.14   
 ----     47619         CAL-ER (PER04) 2019:351:21:53:47.571   1.0   --    --  326.0000 -37.0000 273.50  53.58 174.40   
 ----     47618         CAL-ER (CTI02) 2019:351:22:50:32.543   3.0   --    --   64.7000   8.8000 309.24 155.71 102.22   
201287    23100 0               RW Aur 2019:352:00:48:37.543  10.0 ACIS-S NONE  76.9652  30.4236 225.00 169.89  83.09 dss pspc rass
503197    23082 2  FRB 180916.J0158+65 2019:352:04:01:25.239  18.0 ACIS-S NONE  29.4996  65.7407 247.90 125.04  47.76 dss pspc rass
201287    23102 0               RW Aur 2019:352:09:27:32.934  15.7 ACIS-S NONE  76.9653  30.4239 225.00 169.66  47.76 dss pspc rass
 ----     47617         CAL-ER (IAT06) 2019:352:14:37:55.766   0.0   --    --  100.4593  18.1188  66.44 165.25 149.46   
100192    23092 1    C/2019 Q4 Borisov 2019:352:15:12:52.512  12.5  HRC-S NONE 176.1899 -26.2648  68.98  79.50  85.93 dss pspc rass
100192    23093 1    C/2019 Q4 Borisov 2019:352:18:49:42.512  12.5  HRC-S NONE 176.2516 -26.3812  68.98  79.54   0.13 dss pspc rass
 ----     47616         CAL-ER (IAT03) 2019:352:22:52:42.252   0.0   --    --  101.2262  19.3679  71.20 165.35  86.23   
201287    23101 0               RW Aur 2019:352:23:40:36.832  30.0 ACIS-S NONE  76.9653  30.4237 225.00 169.25 144.27 dss pspc rass
 ----     47615         CAL-ER (IAT04) 2019:353:08:42:31.782   0.0   --    --  286.3773  24.0413 336.48  51.24 118.87   
703761    21464 0             NGC 6104 2019:353:09:08:27.575  30.0 ACIS-S NONE 244.1080  35.6895  23.20  62.84  45.25 dss pspc rass
801874    22643 0   Perseus_south_cf_1 2019:353:18:07:07.136  32.4 ACIS-I NONE  50.5331  41.3065 250.00 144.78 104.22 dss pspc rass
 ----     47614         CAL-ER (CTI04) 2019:354:03:43:37.131   3.0   --    --  292.0000  21.0000 330.37  50.46  95.68   
 ----     47613         CAL-ER (PER07) 2019:354:05:35:00.000   6.0   --    --   95.5738  68.5197 169.61 134.64  89.70   
 ----     47612         CAL-ER (PER08) 2019:354:07:42:55.375   9.0   --    --   93.0000  28.0000 132.33 173.34  55.90   
 ----     47611         CAL-ER (PER09) 2019:354:10:29:49.857   6.0   --    --   99.3624  36.5059 139.42 163.53  14.53   
 ----     47610         CAL-ER (PER10) 2019:354:12:50:16.704   1.0   --    --  237.0405  18.2051  37.01  51.38 112.26   
 ----     47609         CAL-ER (CTI05) 2019:354:14:23:24.481   3.0   --    --  102.7931  37.1495 132.92 161.27 109.86   
703957 P1 22570 0         F2M0825+4716 2019:354:16:19:10.483  10.0 ACIS-S NONE 126.2857  47.2657 114.53 141.36  20.16 dss pspc rass
703910    22290 1              Ark 564 2019:354:19:45:29.690  11.0  HRC-S LETG 340.6429  29.7365 299.01  87.55 108.69 dss pspc rass
704028    22914 1         PKS 1413+135 2019:354:23:30:37.612   4.0 ACIS-S NONE 213.9914  13.3166  55.60  64.64 118.34 dss pspc rass
703910    23099 1              Ark 564 2019:355:01:19:05.547  11.0  HRC-S LETG 340.6439  29.7359 299.01  87.37 118.35 dss pspc rass
 ----     47608         CAL-ER (IAT05) 2019:355:04:54:16.843   0.0   --    --   68.9909  31.8788 249.01 160.75  73.60   
201298    23003 0 Orion Nebula Cluster 2019:355:05:34:42.730  25.0 ACIS-S HETG  83.7976  -5.3961 350.90 150.75 110.62 dss pspc rass
801901 P1 23105 0   CLJ211235.8-574950 2019:355:13:09:51.544  30.0 ACIS-S NONE 318.1163 -57.8469 246.89  48.95 103.41 dss pspc rass
201298    23104 0 Orion Nebula Cluster 2019:355:22:08:19.606  25.0 ACIS-S HETG  83.7970  -5.3957 349.50 150.61 103.35 dss pspc rass
201276 P1 22306 0                J0505 2019:356:05:35:07.206  19.0 ACIS-S NONE  75.2230 -43.6240 345.69 111.58  38.97 dss pspc rass
201298    22336 0 Orion Nebula Cluster 2019:356:11:21:54.806  25.9 ACIS-S HETG  83.7976  -5.3951 348.38 150.50  38.98 dss pspc rass
 ----     47607         CAL-ER (CTI06) 2019:356:18:50:37.135   3.0   --    --   88.5175   9.4138 353.05 165.85  16.27   
 ----     47606         CAL-ER (PER11) 2019:356:21:10:00.000   5.5   --    --   88.6681 -22.0433 357.67 134.48  31.78   
 ----     47605         CAL-ER (PER12) 2019:356:23:09:37.426   3.0   --    --   87.3368  19.9587 319.67 175.41  56.06   
 ----     47604         CAL-ER (PER13) 2019:357:00:43:22.075   3.0   --    --  317.0000 -60.0000 242.22  48.62 127.10   
 ----     47603         CAL-ER (PER14) 2019:357:02:27:50.787   3.0   --    --  243.0000  21.0000  32.80  52.00 175.40   
 ----     47602         CAL-ER (CTI07) 2019:357:05:15:13.149   3.0   --    --   99.6685  36.4592 147.28 164.93 112.94   
 ----     47601         CAL-ER (PER15) 2019:357:06:31:28.772   1.0   --    --   84.3567  37.6508 203.43 164.73  48.37   
801874    23103 0   Perseus_south_cf_1 2019:357:07:46:59.108  16.5 ACIS-I NONE  50.5332  41.3059 250.00 141.93  35.84 dss pspc rass


DEC0919A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
704031 P1 23098 0     [HB89]0403-132 2019:343:04:49:15.613  10.0 ACIS-S NONE  61.3683 -13.1391 339.02 141.55  41.37 dss pspc rass
704005    22621 0           NGC 6860 2019:343:08:11:49.035  17.0 ACIS-S HETG 302.1976 -61.0772 241.38  49.84  91.76 dss pspc rass
 ----     47648       CAL-ER (CTI01) 2019:343:13:37:04.768   3.0   --    --   72.3000   8.8000 347.07 165.61 116.37   
 ----     47647       CAL-ER (PER01) 2019:343:15:28:00.000   5.8   --    --   64.0000 -21.0000 344.56 134.70  30.94   
 ----     47646       CAL-ER (PER02) 2019:343:17:29:36.207   2.0   --    --   73.8000  18.1000 337.22 174.89  40.94   
 ----     47645       CAL-ER (CAL01) 2019:343:19:45:00.000   2.0   --    --   49.7000  23.0000 274.77 155.76  74.21   
 ----     47644       CAL-ER (PER06) 2019:343:21:40:00.000   1.0   --    --  312.1000 -12.5000 289.27  54.02 101.75   
 ----     47643       CAL-ER (PER07) 2019:343:22:39:11.467   2.0   --    --   71.0000  24.0000 257.22 175.11 121.61   
 ----     47642       CAL-ER (CTI02) 2019:344:00:22:44.681   2.0   --    --   86.0000  27.0000 113.05 170.23 138.00   
601492    22515 0            J141851 2019:344:02:29:39.060  27.0 ACIS-S NONE 214.7039  21.0209  45.12  59.77 111.41 dss pspc rass
201226    21171 0           NGC 3766 2019:344:10:38:04.966  25.0 ACIS-I NONE 174.0772 -61.6268  84.93  66.51 103.19 dss pspc rass
201298    22904 0 Orion Nebula Cluster 2019:344:18:09:17.092  37.0 ACIS-S HETG  83.8008  -5.4041  12.87 150.89  85.66 dss pspc rass
201226    23094 0           NGC 3766 2019:345:05:00:28.506  25.0 ACIS-I NONE 174.0757 -61.6257  84.17  66.83  85.61 dss pspc rass
201298    23097 0 Orion Nebula Cluster 2019:345:12:31:41.474  36.3 ACIS-S HETG  83.8012  -5.4030  11.28 151.00  85.72 dss pspc rass
100185 P1 22293 0           HD 39091 2019:345:23:08:55.341  19.9 ACIS-S NONE  84.1785 -80.4805   5.49  76.44  75.29 dss pspc rass
 ----     47641       CAL-ER (CTI03) 2019:346:05:17:28.848   3.0   --    --   74.0000  11.0000 340.28 167.16  92.83   
 ----     47640       CAL-ER (CAL01) 2019:346:06:47:00.000   6.6   --    --   64.0000 -21.0000 341.10 133.68  33.52   
 ----     47639       CAL-ER (CAL01) 2019:346:09:02:54.790   6.0   --    --   73.8000  18.1000 317.07 173.16  46.77   
 ----     47638       CAL-ER (PER10) 2019:346:12:20:00.000   1.0   --    --  314.5000 -40.7000 266.75  49.42 123.89   
 ----     47637       CAL-ER (PER13) 2019:346:13:15:16.392   0.0   --    --  302.0000  52.0000 320.91  83.92 103.98   
 ----     47636       CAL-ER (PER12) 2019:346:13:50:07.202   3.0   --    --   76.0000  34.0000 194.61 168.73  85.49   
 ----     47635       CAL-ER (CTI06) 2019:346:15:56:23.386   2.0   --    --   97.0000  18.0000  70.09 162.56 116.81   
801897    22727 0   SPT-CLJ1315-2806 2019:346:17:59:16.994  25.0 ACIS-I NONE 198.8519 -28.1075  80.64  54.16 108.56 dss pspc rass
503160 P1 22433 0     PSR J1208-6238 2019:347:01:23:13.994  10.0 ACIS-S NONE 182.0800 -62.6549  89.77  63.88  42.05 dss pspc rass
201298    22337 0 Orion Nebula Cluster 2019:347:04:45:15.437  38.1 ACIS-S HETG  83.7996  -5.4025   7.77 151.18  89.36 dss pspc rass
201275 P1 22305 0             J0949A 2019:347:15:52:49.823  17.0 ACIS-S NONE 147.2500 -71.6570  61.23  74.89  76.83 dss pspc rass
704005    23095 0           NGC 6860 2019:347:21:04:20.423  33.2 ACIS-S HETG 302.2017 -61.0779 236.17  47.42  50.89 dss pspc rass
201298    23006 0 Orion Nebula Cluster 2019:348:06:57:01.841  25.0 ACIS-S HETG  83.7993  -5.4015   5.47 151.24 107.36 dss pspc rass
601476 P1 22499 0 J074915.5+225342.2 2019:348:14:29:24.752  20.0 ACIS-S NONE 117.3222  22.8733  82.15 146.93  90.97 dss pspc rass
 ----     47634       CAL-ER (CTI05) 2019:348:20:33:02.689   3.0   --    --   89.0000  11.0000  29.11 165.88  67.58   
 ----     47633       CAL-ER (PER03) 2019:348:22:30:00.000   5.9   --    --  115.0000 -11.0000  43.42 132.73  36.75   
 ----     47632       CAL-ER (PER04) 2019:349:00:29:52.574   6.0   --    --  103.0000  10.0000  54.26 155.80  26.49   
 ----     47631       CAL-ER (CAL01) 2019:349:02:43:28.542   3.0   --    --  101.5000  41.0000 131.21 155.78  81.45   
 ----     47630       CAL-ER (PER14) 2019:349:04:12:32.984   2.0   --    --  228.5000  14.4000  41.48  49.86 106.08   
 ----     47629       CAL-ER (PER16) 2019:349:05:15:19.341   3.0   --    --  204.0000 -27.0000  80.50  52.18  62.73   
 ----     47628       CAL-ER (CAL01) 2019:349:06:59:33.485   2.0   --    --   97.0000  18.0000  66.90 165.08 112.83   
801897    23096 0   SPT-CLJ1315-2806 2019:349:09:26:27.484  25.0 ACIS-I NONE 198.8521 -28.1090  79.38  56.64 108.54 dss pspc rass
703958 P1 22571 0       F2M0834+3506 2019:349:16:59:02.696  10.0 ACIS-S NONE 128.5434  35.0800  93.71 138.51  91.89 dss pspc rass
201298    22343 0 Orion Nebula Cluster 2019:349:20:26:49.692  25.0 ACIS-S HETG  83.7981  -5.4007   2.16 151.27 115.27 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 12/13/19



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