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.

OCT2620B


Seq #     ObsID Constr.    Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
-----------------------------------------------------------------------------------------------------------------------------------
291586    24645 2               AR Lac 2020:299:12:16:56.641  11.6  HRC-S NONE 332.1692  45.7634 242.00 121.00  19.72 dss pspc rass
100190    22688 1                 Mars 2020:299:16:06:24.166  33.5  HRC-I LETG  16.9136   4.7375 302.00 164.84  96.04 dss pspc rass
402179    22415 2               gx 5-1 2020:300:02:04:02.889  20.0 ACIS-S HETG 270.2791 -25.0564 269.13  57.46 107.15 dss pspc rass
704123 P1 23711 0              MRK0896 2020:300:08:03:03.255   2.0 ACIS-S NONE 311.5712  -2.7932 283.28  99.86  45.67 dss pspc rass
100190    24850 1                 Mars 2020:300:09:07:01.857  37.0  HRC-I LETG  16.6982   4.7089 302.00 163.94  68.15 dss pspc rass
201384 P1 23397 0             HD 24636 2020:300:20:02:25.630   5.0  HRC-I NONE  57.0205 -74.7165  42.97  91.09 104.53 dss pspc rass
703943    22555 1         MCG -5-23-16 2020:300:21:57:27.603  25.1 ACIS-S HETG 146.9259 -30.9738  81.00  61.70  72.90 dss pspc rass
 ----     46847         CAL-ER (CTI01) 2020:301:05:36:48.277   1.0   --    --   39.0000  10.0000  67.48 172.32 111.25   
 ----     46846         CAL-ER (PER05) 2020:301:07:30:00.000   0.9   --    --   28.5000   9.3000 318.06 175.17 111.50   
 ----     46845         CAL-ER (PER02) 2020:301:08:30:00.000   3.0   --    --  267.0000 -45.0000 253.55  56.53 118.62   
 ----     46844         CAL-ER (PER01) 2020:301:11:05:00.000   3.0   --    --   28.5000   9.3000 317.24 175.05 118.61   
 ----     46843         CAL-ER (CTI04) 2020:301:15:22:57.173   3.0   --    --   32.5000  22.0000 177.51 170.98 138.93   
801881    23059 0 COBRA141155.2+341510 2020:301:18:20:31.099  40.0 ACIS-S NONE 212.9502  34.2405   1.02  47.28 123.80 dss pspc rass
801870    22639 0   PSZ2 G141.77+14.19 2020:302:05:59:05.371  26.0 ACIS-S NONE  70.3437  68.2127 136.66 119.88  73.82 dss pspc rass
503235 P1 23560 0            SN 2007gr 2020:302:13:35:33.699   5.0 ACIS-S NONE  40.8987  37.3489 161.51 154.95  34.89 dss pspc rass
703612    20611 1         BR 0351-1034 2020:302:15:40:28.674  10.0 ACIS-S NONE  58.4378 -10.4461  47.18 145.34 117.37 dss pspc rass
703943    24849 1         MCG -5-23-16 2020:302:19:01:12.350  30.0 ACIS-S HETG 146.9249 -30.9724  80.00  62.94  83.53 dss pspc rass
201404 P1 23417 0 2MASS J03411051+0336 2020:303:03:57:34.074  10.0 ACIS-S NONE  55.2935   3.5878  63.84 156.35  93.88 dss pspc rass
704114 P1 23702 0              UGC2608 2020:303:07:20:02.024   2.4 ACIS-S NONE  48.7875  42.0342 150.88 148.67  91.35 dss pspc rass
402226    23448 1          GRB 201015A 2020:303:08:27:57.978  43.2 ACIS-S NONE 354.3258  53.4381 233.11 129.49  54.45 dss pspc rass
 ----     46842         CAL-ER (CTI02) 2020:303:20:55:10.311   1.0   --    --   34.0000  17.0000 184.70 176.72  52.94   
 ----     46841         CAL-ER (CAL01) 2020:303:22:30:00.000   1.0   --    --   28.5000   9.3000 308.40 172.75 122.65   
 ----     46840         CAL-ER (PER04) 2020:304:00:00:00.000   3.0   --    --  267.0000 -45.0000 252.11  54.16 118.74   
 ----     46839         CAL-ER (PER03) 2020:304:03:45:00.000   3.0   --    --   31.0000  11.0000 309.44 175.54 121.64   
 ----     46838         CAL-ER (CTI05) 2020:304:06:24:21.771   3.0   --    --   36.0000  23.0000 171.77 170.76 136.49   
801880    22651 0            Abell1838 2020:304:09:33:22.677  38.0 ACIS-I NONE 209.9775  41.0456   5.67  55.13 115.73 dss pspc rass
503184    22461 1            AT2019wxt 2020:304:20:46:14.019  20.0 ACIS-S NONE  28.9445  31.4358 200.99 161.71 108.10 dss pspc rass
503243 P1 23568 0            SN 2014cl 2020:305:03:10:16.492  15.0 ACIS-S NONE  34.0141 -11.9437 356.81 153.85 158.44 dss pspc rass
300473    23505 0        Nova Ret 2020 2020:305:07:46:37.870  31.0  HRC-I LETG  59.6004 -54.7960  24.45 108.05  48.82 dss pspc rass
704152 P1 23740 0 SDSSJ021930.51-05564 2020:305:16:52:25.470   7.0 ACIS-S NONE  34.8549  -5.9544 356.74 159.66  54.39 dss pspc rass
503184    24848 1            AT2019wxt 2020:305:19:39:47.157  15.0 ACIS-S NONE  28.9439  31.4352 200.99 161.73 158.38 dss pspc rass
801881    24851 0 COBRA141155.2+341510 2020:306:00:30:43.483  13.8 ACIS-S NONE 212.9545  34.2408   4.01  48.80 114.47 dss pspc rass
201298    22998 0 Orion Nebula Cluster 2020:306:05:04:13.421  23.3 ACIS-S HETG  83.8269  -5.4125  84.00 129.06 126.00 dss pspc rass
 ----     46837         CAL-ER (CTI03) 2020:306:12:14:40.456   3.0   --    --   25.0000  -7.0000 331.46 155.42 116.28   


OCT2120A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     46860       CAL-ER (CTI03) 2020:295:22:29:34.872  10.0   --    --   33.0000  10.0000  80.08 173.69  17.57   
 ----     46859       CAL-ER (PER05) 2020:296:01:44:23.219   5.0   --    --   76.0000 -20.8000  61.28 122.10  56.88   
 ----     46858       CAL-ER (PER09) 2020:296:03:36:35.924   1.0   --    --   31.3700  10.7000  84.66 175.57  60.20   
 ----     46857       CAL-ER (PER11) 2020:296:04:33:11.914   1.0   --    --   24.0000  21.0000 196.15 169.71 109.95   
 ----     46856       CAL-ER (PER07) 2020:296:07:00:00.000   1.0   --    --  225.4000  34.9000 335.85  49.23 120.55   
 ----     46855       CAL-ER (CTI04) 2020:296:08:02:27.577   2.0   --    --  243.0000 -51.0000 229.32  49.46 130.90   
201285    22977 0       Westerlund 1 2020:296:11:11:25.573  38.0 ACIS-I NONE 251.7518 -45.8323 236.00  51.25   7.77 dss pspc rass
704107 P1 23695 0 2MASXJ00193596-04401 2020:296:22:23:04.290   2.0 ACIS-S NONE   4.8765  -4.6608 314.00 152.30 102.65 dss pspc rass
704205    24843 0      RC J0311+0507 2020:296:23:39:08.056  22.0 ACIS-S NONE  47.9535   5.1111  71.33 158.93 122.53 dss pspc rass
201298    22993 0 Orion Nebula Cluster 2020:297:06:18:38.656  25.0 ACIS-S HETG  83.8225  -5.4147  72.86 121.84  37.36 dss pspc rass
901433 P1 23643 0 NuSTAR J110727-5948. 2020:297:13:49:05.722  14.0 ACIS-S NONE 166.9056 -59.8278 120.03  57.03  82.28 dss pspc rass
704244    24474 0         J0252-0503 2020:297:18:20:46.736  20.0 ACIS-S NONE  43.0597  -5.0806  41.00 157.76 102.83 dss pspc rass
601523 P1 23622 0            NGC2283 2020:298:00:23:13.269  10.0 ACIS-I NONE 101.4750 -18.2303  73.11 102.13  61.24 dss pspc rass
402225    23447 2        GRB 201015A 2020:298:03:56:20.493  34.2 ACIS-S NONE 354.3302  53.4375 226.44 130.20 139.29 dss pspc rass
 ----     46854       CAL-ER (CTI08) 2020:298:13:52:10.083   1.0   --    --   25.7000  16.5000 216.99 174.34  45.31   
 ----     46853       CAL-ER (CTI06) 2020:298:15:30:00.000   3.0   --    --   33.0000  10.0000  61.55 175.83 153.85   
 ----     46852       CAL-ER (PER08) 2020:298:17:41:21.930   5.0   --    --   76.0000 -20.8000  58.70 123.63  52.76   
 ----     46851       CAL-ER (PER13) 2020:298:19:31:50.436   1.0   --    --   32.7000   9.0000  46.82 175.58  52.39   
 ----     46850       CAL-ER (PER14) 2020:298:20:37:48.330   1.0   --    --   27.6000  17.0000 199.97 174.72 152.09   
 ----     46849       CAL-ER (PER15) 2020:298:22:40:00.000   1.0   --    --  225.4000  34.9000 339.33  49.32 125.42   
 ----     46848       CAL-ER (CTI07) 2020:298:23:45:29.349   3.0   --    --  243.0000 -51.0000 227.01  47.46 134.71   
201367 P1 23380 0             WR 93b 2020:299:02:48:00.335  20.8 ACIS-S NONE 263.0067 -35.0522 258.24  53.23  27.58 dss pspc rass
503266 P1 23591 0  4FGL J2041.1+4736 2020:299:09:11:30.001  10.0 ACIS-I NONE 310.2795  47.6207 270.77 105.97  94.48 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 10/24/20



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