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.

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


DEC0219A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     47681       CAL-ER (PER01) 2019:335:18:48:10.640   7.7   --    --   92.0000  33.0000 110.89 155.46  52.55   
 ----     47680       CAL-ER (PER03) 2019:335:21:16:09.980   1.0   --    --   70.0000  23.0000 115.97 177.32  22.43   
 ----     47679       CAL-ER (PER02) 2019:335:22:21:23.134   1.0   --    --   65.0000  20.0000 308.83 177.08 168.99   
 ----     47678       CAL-ER (PER04) 2019:335:22:51:42.453   1.0   --    --   60.1000  15.4000 313.70 170.51   7.37   
 ----     47677       CAL-ER (PER05) 2019:336:00:36:00.000   0.0   --    --  309.0000 -44.0000 267.15  54.72 115.74   
 ----     47676       CAL-ER (PER06) 2019:336:01:10:21.142   0.0   --    --  197.4000 -57.3000 112.77  50.63  83.26   
 ----     47675       CAL-ER (CTI01) 2019:336:01:54:16.774   3.0   --    --   69.0000  19.0000  24.42 176.86 126.35   
201225    21169 0           NGC 4755 2019:336:04:15:27.788  46.0 ACIS-I NONE 193.4487 -60.3805 110.87  53.72 123.23 dss pspc rass
201298    22893 0 Orion Nebula Cluster 2019:336:17:38:41.633  25.0 ACIS-S HETG  83.8050  -5.4088  28.49 148.68  94.79 dss pspc rass
 ----     47674       CAL-ER (IAT01) 2019:337:01:20:34.632   0.0   --    --   75.2000  39.9000 160.73 161.28 133.73   
503197    23081 2 FRB 180916.J0158+65 2019:337:01:46:56.900  18.0 ACIS-S NONE  29.5177  65.7392 229.41 129.60  47.26 dss pspc rass
503079    21306 1      SGR 1935+2154 2019:337:07:18:34.188  50.0 ACIS-S NONE 293.7338  21.8801 312.26  61.97  72.55 dss pspc rass
801874    23086 0 Perseus_south_cf_1 2019:337:21:48:17.813  30.4 ACIS-I NONE  50.5435  41.3041 225.70 155.04  94.02 dss pspc rass
 ----     47673       CAL-ER (CTI02) 2019:338:06:34:24.015   1.0   --    --   68.0000  24.0000 225.41 177.42  24.42   
 ----     47672       CAL-ER (PER07) 2019:338:07:22:16.443   1.0   --    --   71.0000  24.0000 153.56 177.97  70.68   
 ----     47671       CAL-ER (PER08) 2019:338:08:37:00.000   4.8   --    --  116.0000  63.0000 121.19 128.96  49.05   
 ----     47670       CAL-ER (PER09) 2019:338:10:21:58.167   8.3   --    --   95.0000  33.0000 109.94 155.56  42.53   
 ----     47669       CAL-ER (PER17) 2019:338:12:56:56.496   1.0   --    --   76.0000  29.0000 141.56 171.46  27.40   
 ----     47668       CAL-ER (PER18) 2019:338:13:57:42.180   0.9   --    --   65.0000  20.0000 294.86 174.57 148.93   
 ----     47667       CAL-ER (PER10) 2019:338:14:28:01.927   3.0   --    --   55.5000  17.0000 292.82 165.09  10.76   
 ----     47666       CAL-ER (PER11) 2019:338:15:58:37.877   0.0   --    --  309.0000 -34.0000 273.17  52.31 112.95   
 ----     47665       CAL-ER (PER12) 2019:338:16:30:05.986   0.5   --    --  287.0000  16.0000 315.87  52.38  70.28   
 ----     47664       CAL-ER (CTI03) 2019:338:17:30:58.832   1.0   --    --   62.0000  26.5000 242.88 171.18 119.27   
 ----     47663       CAL-ER (CTI04) 2019:338:18:19:10.383   1.0   --    --   72.2000  28.8000 166.54 173.27  72.12   
601435    23034 0           NGC 2276 2019:338:19:43:09.810  46.0 ACIS-S NONE 111.9952  85.7557 137.32 115.40  58.61 dss pspc rass
 ----     47662       CAL-ER (IAT02) 2019:339:09:12:11.317   0.0   --    --  119.0000 -15.0000  52.40 120.09 120.86   
201298    22994 0 Orion Nebula Cluster 2019:339:09:37:24.577  25.0 ACIS-S HETG  83.8047  -5.4060  23.55 149.62  42.10 dss pspc rass
 ----     47661       CAL-ER (IAT03) 2019:339:17:11:54.729   0.0   --    --  196.7000 -49.3000 101.61  50.49 100.51   
703975    22589 0 SDSS J143029.88+1339 2019:339:17:47:50.900  34.0 ACIS-S NONE 217.6165  13.6331  43.12  49.04  90.39 dss pspc rass
 ----     47660       CAL-ER (IAT04) 2019:340:03:55:27.018   0.0   --    --   85.0000  34.0000 131.99 163.78 114.46   
801874    22894 0 Perseus_south_cf_1 2019:340:04:28:21.547  29.0 ACIS-I NONE  50.5439  41.3050 225.70 153.91  76.76 dss pspc rass
 ----     47659       CAL-ER (IAT05) 2019:340:13:04:03.189   0.0   --    --   85.0000  34.0000 132.96 164.06  75.87   
703975    22972 0 SDSS J143029.88+1339 2019:340:13:45:20.382  28.0 ACIS-S NONE 217.6162  13.6316  43.81  49.71 114.46 dss pspc rass
 ----     47658       CAL-ER (CTI06) 2019:340:22:15:20.773   3.0   --    --   76.0000  24.5000 124.04 176.51 126.64   
 ----     47657       CAL-ER (PER13) 2019:341:00:00:00.000   5.5   --    --  116.0000  63.0000 124.15 130.37  55.02   
 ----     47656       CAL-ER (PER14) 2019:341:01:55:09.593   8.5   --    --   96.0000  37.0000 119.77 155.48  34.97   
 ----     47655       CAL-ER (PER15) 2019:341:04:32:41.651   1.0   --    --   77.0000  28.0000 146.79 173.52  24.76   
 ----     47654       CAL-ER (PER16) 2019:341:05:30:39.811   1.0   --    --   64.0000  20.0000 288.11 171.06 136.36   
 ----     47653       CAL-ER (PER19) 2019:341:06:02:48.811   3.0   --    --   59.5000  16.0000 298.94 165.49  11.10   
 ----     47652       CAL-ER (PER20) 2019:341:07:33:54.211   0.5   --    --  310.0000 -42.0000 265.98  50.70 115.16   
 ----     47651       CAL-ER (CTI07) 2019:341:08:48:10.277   1.0   --    --  222.9000  19.4000  36.77  51.43 164.28   
 ----     47650       CAL-ER (CTI05) 2019:341:09:47:13.562   2.0   --    --   77.0000  30.0000 155.65 171.90 121.00   
703748 P1 21451 0 J160135.95+311353.7 2019:341:11:07:38.209  20.0 ACIS-S NONE 240.3781  31.2156  14.73  55.24 116.91 dss pspc rass
601456    22479 0           IC342 NE 2019:341:17:14:23.164  41.0 ACIS-I NONE  56.8619  68.1596 201.58 133.29  80.62 dss pspc rass
703975    23088 0 SDSS J143029.88+1339 2019:342:05:14:47.343  39.0 ACIS-S NONE 217.6169  13.6320  45.06  51.06  97.06 dss pspc rass
 ----     47649       CAL-ER (IAT06) 2019:342:16:39:40.204   0.0   --    --  196.7000 -49.3000  98.54  52.33  87.21   
201298    23087 0 Orion Nebula Cluster 2019:342:17:17:53.478  40.0 ACIS-S HETG  83.8021  -5.4052  17.02 150.50 100.67 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 12/06/19



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