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.

NOV2717A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     49623       CAL-ER (PER02) 2017:330:16:00:00.000   3.0   --    --  264.0000  24.0000 333.17  49.68 106.13   
 ----     49622       CAL-ER (CTI01) 2017:330:22:19:38.858   3.0   --    --  226.0000 -69.0000 159.28  49.00 161.69   
801682    19593 0        EXO0422-086 2017:331:01:30:34.756  20.0 ACIS-I NONE  66.4494  -8.5710   6.00 150.11 101.13 dss pspc rass
703441    19692 2        PKS 0637-75 2017:331:07:34:48.963  27.0 ACIS-S NONE  98.8925 -75.2888  26.95  80.95  69.32 dss pspc rass
801682    20862 0        EXO0422-086 2017:331:15:35:43.174  20.0 ACIS-I NONE  66.4502  -8.5705   6.00 150.05  69.32 dss pspc rass
703441    20864 2        PKS 0637-75 2017:331:21:39:57.380  23.0 ACIS-S NONE  98.8952 -75.2879  26.95  80.92  69.32 dss pspc rass
801682    20863 0        EXO0422-086 2017:332:04:34:11.590  15.0 ACIS-I NONE  66.4510  -8.5701   6.00 150.00  69.32 dss pspc rass
703529    20424 0       VTC0309+0114 2017:332:09:10:28.783  15.0 ACIS-S NONE  47.3387   1.2538 321.00 154.04  48.50 dss pspc rass
801687    19750 0  CIZA J0649.3+1801 2017:332:14:05:08.012  13.0 ACIS-I NONE 102.3504  18.0003  75.00 144.20 131.19 dss pspc rass
703441    20865 2        PKS 0637-75 2017:332:18:19:51.427  22.6 ACIS-S NONE  98.8954 -75.2878  26.95  80.92 101.51 dss pspc rass
 ----     49621       CAL-ER (CTI02) 2017:333:01:08:18.484   3.0   --    --   68.0152  -2.6500   7.03 155.71  74.90   
 ----     49620       CAL-ER (PER04) 2017:333:06:30:00.000   3.0   --    --   85.0000  39.0000 130.15 155.59 132.88   
 ----     49619       CAL-ER (PER05) 2017:333:07:59:04.602   3.0   --    --  216.0000  19.0000  36.65  49.55 106.10   
 ----     49618       CAL-ER (PER03) 2017:333:09:35:58.937   3.0   --    --  242.0000 -72.0000 176.04  50.55 141.33   
 ----     49617       CAL-ER (CTI03) 2017:333:14:08:27.237   3.0   --    --   68.0152  -2.6500   5.75 155.69 105.26   
703441    20866 2        PKS 0637-75 2017:333:17:10:37.282  24.0 ACIS-S NONE  98.8943 -75.2882  26.95  80.90  74.84 dss pspc rass
801745    20531 0 ACT-CL J0256.5+0006 2017:334:00:24:52.690  43.0 ACIS-S NONE  44.1176   0.1121 320.00 149.74  84.41 dss pspc rass
703441    20867 2        PKS 0637-75 2017:334:12:55:48.098  23.9 ACIS-S NONE  98.8951 -75.2879  26.95  80.86  84.41 dss pspc rass
801745    20868 0 ACT-CL J0256.5+0006 2017:334:20:09:08.505  26.0 ACIS-S NONE  44.1180   0.1120 320.00 149.03  84.41 dss pspc rass
601422    20356 0 CXOU J022721.5+33350 2017:335:03:56:35.722  10.0 ACIS-S NONE  36.8392  33.6038 244.50 150.82  83.79 dss pspc rass
890148    19969 2              A1795 2017:335:07:26:41.755  20.0 ACIS-I NONE 207.2294  26.5854  32.00  62.07 125.70 dss pspc rass
601370 P1 19413 0           NGC 4580 2017:335:13:25:18.755   8.1 ACIS-S NONE 189.4511   5.3482  62.16  63.08  36.87 dss pspc rass
 ----     49616       CAL-ER (CTI04) 2017:335:16:17:14.208   3.0   --    --   87.0000  27.0000 102.13 161.76  98.57   
 ----     49615       CAL-ER (PER06) 2017:335:21:10:00.000   3.0   --    --   92.0000  34.0000 113.57 155.65  16.21   
 ----     49614       CAL-ER (PER01) 2017:336:01:00:00.000   1.0   --    --  217.8274  16.1400  38.85  48.26 108.19   
 ----     49613       CAL-ER (PER08) 2017:336:01:55:59.079   3.0   --    --   83.0000  44.0000 146.18 154.75 107.18   
 ----     49612       CAL-ER (PER07) 2017:336:03:12:57.511   3.0   --    --   54.0000  43.0000 213.83 155.83  51.63   
 ----     49611       CAL-ER (CTI05) 2017:336:05:35:37.145   3.0   --    --  264.0000  24.0000 340.42  48.42 107.55   
703554    20824 0            NGC1275 2017:336:08:42:38.154  50.0 ACIS-S HETG  49.9626  41.5324 219.99 155.03 107.28 dss pspc rass
601311 P1 19354 0           NGC 2541 2017:336:23:08:50.496   8.0 ACIS-S NONE 123.6892  49.0430 101.89 129.49  78.18 dss pspc rass
402012    20860 0           GW170817 2017:337:01:59:21.755  75.0 ACIS-S NONE 197.4579 -23.4039  80.81  47.50  97.59 dss pspc rass
601296 P1 19339 0           NGC 2549 2017:337:23:27:19.010  10.0 ACIS-S NONE 124.7741  57.7864 108.52 127.32 101.04 dss pspc rass
703554    20827 0            NGC1275 2017:338:02:44:45.612  17.1 ACIS-S HETG  49.9630  41.5330 219.99 154.20  68.75 dss pspc rass
 ----     49610       CAL-ER (CTI06) 2017:338:08:09:56.105   3.0   --    --  264.0000  24.0000 343.27  48.04 107.29   


NOV2017A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
401807    18338 1     MAXI J0556-332 2017:323:15:59:56.262  11.0 ACIS-S NONE  89.1809 -33.1943  35.99 117.93 164.23 dss pspc rass
801659    19566 0 PLCKESZ G200.9-28.2 2017:323:19:28:33.262  25.0 ACIS-I NONE  72.5813  -3.0191  27.00 151.58  34.12 dss pspc rass
401807    20856 1     MAXI J0556-332 2017:324:02:48:09.927  19.0 ACIS-S NONE  89.1810 -33.1941  35.99 118.07  34.12 dss pspc rass
801659    20852 0 PLCKESZ G200.9-28.2 2017:324:08:32:06.927  18.0 ACIS-I NONE  72.5813  -3.0190  27.00 151.83  34.12 dss pspc rass
601275 P1 19318 0            NGC2513 2017:324:14:05:32.121  14.0 ACIS-S NONE 120.6121   9.3953  90.00 116.89  80.64 dss pspc rass
801659    20853 0 PLCKESZ G200.9-28.2 2017:324:18:32:17.316  28.1 ACIS-I NONE  72.5813  -3.0191  27.00 152.02  80.64 dss pspc rass
 ----     49635       CAL-ER (PER02) 2017:325:02:59:40.711   1.0   --    --  197.0000 -57.0000 125.26  47.13 105.34   
 ----     49634       CAL-ER (PER03) 2017:325:04:20:00.000   1.0   --    --  254.0000  24.0000 337.38  47.06 173.73   
 ----     49633       CAL-ER (PER01) 2017:325:05:30:00.000  10.0   --    --   45.0000  42.0000 207.56 155.81 108.76   
 ----     49632       CAL-ER (CAL01) 2017:325:13:15:00.000   1.0   --    --  271.0000  20.0000 318.13  52.06 105.09   
 ----     49631       CAL-ER (PER04) 2017:325:14:25:00.000   1.0   --    --  291.0000 -53.0000 252.80  52.75 100.44   
 ----     49630       CAL-ER (CAL01) 2017:325:15:39:30.645   5.0   --    --   40.0000   2.3000 317.99 155.70 103.20   
801659    20854 0 PLCKESZ G200.9-28.2 2017:325:18:48:28.641  31.0 ACIS-I NONE  72.5799  -3.0209  27.00 152.42  75.42 dss pspc rass
401882    19932 1       NGC 1313 X-1 2017:326:03:57:59.241  50.8 ACIS-S HETG  49.5310 -66.4935 352.45  93.16  67.89 dss pspc rass
801659    20855 0 PLCKESZ G200.9-28.2 2017:326:18:34:59.508  40.0 ACIS-I NONE  72.5815  -3.0188  27.00 152.77  67.90 dss pspc rass
201092    18899 0             TWA 34 2017:327:06:16:16.836  30.0 ACIS-S NONE 157.1929 -28.5302  77.00  73.31  86.05 dss pspc rass
601375 P1 19418 0           NGC 4412 2017:327:15:02:25.064   8.0 ACIS-S NONE 186.6500   3.9446  62.47  56.96  47.80 dss pspc rass
 ----     49629       CAL-ER (CAL01) 2017:327:17:55:27.645   3.0   --    --   74.5000  22.2000  94.21 165.72 108.91   
 ----     49628       CAL-ER (PER05) 2017:327:23:00:00.000   3.0   --    --   82.0000   9.5000  60.58 155.70  34.70   
 ----     49627       CAL-ER (CAL01) 2017:328:01:00:00.000   1.0   --    --   44.9000   0.9000 324.73 155.72 104.52   
 ----     49626       CAL-ER (CAL01) 2017:328:02:05:00.000   5.0   --    --  285.4000 -51.4000 246.48  47.06 108.63   
 ----     49625       CAL-ER (CAL01) 2017:328:07:12:41.261   3.0   --    --   44.3000   1.7000 322.28 155.80 108.94   
801659    20858 0 PLCKESZ G200.9-28.2 2017:328:10:23:39.245  12.0 ACIS-I NONE  72.5802  -3.0205  27.00 153.34  69.84 dss pspc rass
401619    16697 1            Haro 11 2017:328:14:18:48.805  24.0 ACIS-S NONE   9.1959 -33.5426 301.99 107.26  88.47 dss pspc rass
801674    20850 0           NGC 6482 2017:328:21:40:05.520  20.0 ACIS-S NONE 267.9300  23.0745 327.01  51.32 116.00 dss pspc rass
201127    18934 0            AFGL333 2017:329:03:48:04.053  80.0 ACIS-I NONE  37.1189  61.5413 212.66 136.05  86.14 dss pspc rass
801674    20857 0           NGC 6482 2017:330:02:36:02.582  23.3 ACIS-S NONE 267.9315  23.0743 327.01  50.86  86.14 dss pspc rass
 ----     49624       CAL-ER (CAL01) 2017:330:09:43:13.899   3.0   --    --   45.8000  40.8000 219.78 155.83 105.10   


Previous weeks' short-term schedules.

Last modified: 11/22/17



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