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.

NOV3020A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
503267 P1 23592 0  4FGL J1317.5-6316 2020:334:21:21:21.442  10.0 ACIS-I NONE 199.4188 -63.2870 123.03  51.93  96.28 dss pspc rass
704139 P1 23727 0 WISEAJ040622.05+1152 2020:335:00:50:32.417  10.8 ACIS-S NONE  61.5701  11.8633 354.00 169.24 121.57 dss pspc rass
201309    22354 0     Kapteyn'S Star 2020:335:04:18:42.219  10.0 ACIS-S NONE  77.9452 -45.0650  11.66 112.40  59.99 dss pspc rass
801900    22874 1  eMACSJ1823.1+7822 2020:335:08:00:42.203  22.4 ACIS-I NONE 275.7894  78.3661 339.99 101.48 179.25 dss pspc rass
 ----     46757       CAL-ER (CTI01) 2020:335:14:42:52.309   2.0   --    --  230.5000  25.0000  17.00  49.36  57.23   
 ----     46756       CAL-ER (PER01) 2020:335:16:25:00.000   5.7   --    --  346.3000  25.3000 286.43 107.18 101.94   
 ----     46755       CAL-ER (PER07) 2020:335:18:29:56.076   3.0   --    --   47.0000  14.0000 295.03 159.47  64.96   
 ----     46754       CAL-ER (PER06) 2020:335:23:00:00.000   1.0   --    --  309.0000 -14.0000 287.25  58.96 101.14   
 ----     46753       CAL-ER (CTI05) 2020:336:00:12:55.284   3.0   --    --  310.0000 -34.0000 274.86  55.93  23.73   
201393    24868 0 2MASS J04214586+2023 2020:336:02:12:56.214  18.0 ACIS-S NONE  65.4166  20.4072 313.01 177.72 122.40 dss pspc rass
704005    22620 0           NGC 6860 2020:336:07:56:05.166  25.0 ACIS-S HETG 302.1897 -61.0762 251.00  54.12 124.42 dss pspc rass
201393    24388 0 2MASS J04214586+2023 2020:336:15:35:54.110  20.0 ACIS-S NONE  65.4142  20.4081 313.01 177.21 124.42 dss pspc rass
704005    24877 0           NGC 6860 2020:336:21:52:23.061  25.0 ACIS-S HETG 302.1892 -61.0741 250.99  53.75 124.42 dss pspc rass
201393    24390 0 2MASS J04214586+2023 2020:337:05:32:12.006  20.0 ACIS-S NONE  65.4125  20.4087 313.01 176.66 124.42 dss pspc rass
503247 P1 23572 0          SN 2001ig 2020:337:11:42:33.452   5.0 ACIS-S NONE 344.3519 -41.0215 290.34  79.68  96.86 dss pspc rass
201347    23156 1             WR 140 2020:337:13:42:07.923  32.0 ACIS-S HETG 305.0831  43.8655 310.02  83.59  93.34 dss pspc rass
601505    23604 1          M33-South 2020:337:23:07:35.523   5.0 ACIS-I NONE  23.4490  30.6196 269.62 138.29  62.56 dss pspc rass
201393    24880 0 2MASS J04214586+2023 2020:338:00:57:11.250  17.7 ACIS-S NONE  65.4235  20.4190 280.01 175.89  48.38 dss pspc rass
 ----     46752       CAL-ER (CTI02) 2020:338:06:34:34.535   2.0   --    --  310.0000 -29.0000 277.58  54.26 121.78   
 ----     46751       CAL-ER (PER02) 2020:338:07:55:00.000   5.7   --    --  346.3000  25.3000 287.81 104.85  65.07   
 ----     46750       CAL-ER (PER08) 2020:338:09:59:41.737   3.0   --    --   47.0000  14.0000 293.86 156.82  63.88   
 ----     46749       CAL-ER (PER03) 2020:338:14:10:00.000   1.0   --    --  310.0000 -34.0000 273.83  53.45 103.55   
 ----     46748       CAL-ER (CTI04) 2020:338:15:41:55.813   3.0   --    --  206.6000   7.5000  54.07  51.94 176.80   
402281    23503 1        1A 0535+262 2020:338:17:27:46.170  20.0 ACIS-S HETG  84.7481  26.2976 109.99 166.12 114.28 dss pspc rass
291535    22742 2               HZ43 2020:338:23:38:02.321   2.0  HRC-I LETG 199.0839  29.0753  47.00  71.29  96.46 dss pspc rass
201315    22658 1             XI BOO 2020:339:00:31:30.082   5.0  HRC-I NONE 222.8372  19.0788  34.47  49.40  23.96 dss pspc rass
890174    22830 2              A1795 2020:339:02:19:07.082  20.0 ACIS-I NONE 207.2279  26.5819  44.78  64.40  16.74 dss pspc rass
890173    22829 2              A1795 2020:339:08:19:44.082  15.0 ACIS-S NONE 207.2217  26.5781  39.00  64.60   5.79 dss pspc rass
201347    24422 1             WR 140 2020:339:13:02:55.978  27.0 ACIS-S HETG 305.0861  43.8645 310.02  82.63  79.64 dss pspc rass
704103 P1 23691 0     IRAS01475-0740 2020:339:21:09:12.347   2.8 ACIS-S NONE  27.4911  -7.4193 305.86 127.67  93.48 dss pspc rass
201393    23406 0 2MASS J04214586+2023 2020:339:22:22:29.198  21.0 ACIS-S NONE  65.4247  20.4174 280.00 174.02  50.91 dss pspc rass
704111 P1 23699 0             IC1495 2020:340:04:46:09.460   3.0 ACIS-S NONE 352.6774 -13.4751 307.99  94.65  81.77 dss pspc rass
201347    24881 1             WR 140 2020:340:06:08:57.060  18.0 ACIS-S HETG 305.0869  43.8642 310.02  82.28  72.86 dss pspc rass
704140 P1 23728 0      MCG-05.01.013 2020:340:11:44:18.106   8.9 ACIS-S NONE 359.3438 -30.4492 302.99  92.45  89.33 dss pspc rass
201393    24878 0 2MASS J04214586+2023 2020:340:14:46:43.492  23.3 ACIS-S NONE  65.4247  20.4174 280.00 173.34  85.83 dss pspc rass
 ----     46747       CAL-ER (CTI03) 2020:340:21:57:11.845   2.0   --    --  310.0000 -29.0000 276.83  51.65 121.74   
 ----     46746       CAL-ER (PER09) 2020:340:23:30:00.000   5.4   --    --  335.0000  23.0000 293.60  92.08  59.14   
 ----     46745       CAL-ER (PER05) 2020:341:01:28:38.719   3.0   --    --  310.0000 -29.0000 276.76  51.50  59.15   
 ----     46744       CAL-ER (CTI06) 2020:341:07:02:33.658   3.0   --    --  310.0000 -29.0000 276.72  51.27   0.05   
201393    24879 0 2MASS J04214586+2023 2020:341:09:08:34.658  10.0 ACIS-S NONE  65.4235  20.4190 280.01 172.56 121.73 dss pspc rass
704153 P1 23741 0 SDSSJ022105.64-04410 2020:341:12:22:31.658   2.0 ACIS-S NONE  35.2512  -4.6726 307.86 133.97  45.16 dss pspc rass
801869    24852 0            RBS 797 2020:341:13:41:43.687  44.0 ACIS-S NONE 146.8639  76.3676 100.44 115.76 136.65 dss pspc rass
201347    24423 1             WR 140 2020:342:02:27:54.287  13.0 ACIS-S HETG 305.0886  43.8636 310.02  81.39  59.20 dss pspc rass


NOV2320A


Seq #     ObsID Constr.    Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
-----------------------------------------------------------------------------------------------------------------------------------
 ----     46783         CAL-ER (PER01) 2020:327:19:59:53.498   1.0   --    --  240.4177  29.1719 357.69  49.49  82.76   
 ----     46782         CAL-ER (PER02) 2020:327:20:39:03.990   2.5   --    --  267.0623  22.4864 324.87  51.02  32.43   
 ----     46781         CAL-ER (PER03) 2020:327:21:59:17.057   1.0   --    --   34.0000  35.0000 242.36 153.82 103.73   
 ----     46780         CAL-ER (PER04) 2020:327:22:49:35.282   3.0   --    --   50.1170  12.8305 313.58 168.91  81.62   
 ----     46779         CAL-ER (CTI02) 2020:328:01:48:39.596   3.0   --    --  300.8141 -34.1338 272.84  56.00 113.28   
201347    24424 1               WR 140 2020:328:03:57:23.586  15.0 ACIS-S HETG 305.0894  43.8674 301.02  88.21  82.39 dss pspc rass
 ----     46778         CAL-ER (IAT01) 2020:328:08:37:12.808   0.9   --    --   38.4992  42.1678 224.92 152.20  64.44   
201298    24622 0 Orion Nebula Cluster 2020:328:09:45:45.875  25.0 ACIS-S HETG  83.8103  -5.4108  42.44 144.56 168.16 dss pspc rass
 ----     46777         CAL-ER (CAL01) 2020:328:17:35:26.416   0.9   --    --   38.4992  42.1678 225.67 152.07 168.79   
201347    24872 1               WR 140 2020:328:18:20:56.094  15.0 ACIS-S HETG 305.0908  43.8667 301.02  87.94  64.40 dss pspc rass
100204    24847 2               Saturn 2020:328:23:01:26.820  10.0  HRC-I NONE 299.6456 -20.9949 283.00  55.69  67.55 dss pspc rass
 ----     46776         CAL-ER (IAT02) 2020:329:02:25:29.193   0.9   --    --   32.5965  16.0656 284.11 153.77  98.43   
201298    24873 0 Orion Nebula Cluster 2020:329:03:25:26.119  25.0 ACIS-S HETG  83.8104  -5.4093  41.36 144.95 129.44 dss pspc rass
201365    23378 1             HD113904 2020:329:10:58:38.213  15.0 ACIS-S HETG 197.0746 -65.3161 126.04  52.71  94.66 dss pspc rass
201298    24874 0 Orion Nebula Cluster 2020:329:15:45:09.835  26.0 ACIS-S HETG  83.8101  -5.4093  40.60 145.23  94.62 dss pspc rass
201365    24869 1             HD113904 2020:329:23:35:01.460  15.0 ACIS-S HETG 197.0751 -65.3162 126.04  52.82  94.62 dss pspc rass
801916 P1 23848 0                A0531 2020:330:04:22:36.933  10.1 ACIS-I NONE  75.3121  -3.5609  29.35 151.90  99.41 dss pspc rass
 ----     46775         CAL-ER (CTI03) 2020:330:07:31:32.077   1.0   --    --   70.0987  12.6669  45.23 168.19  22.96   
 ----     46774         CAL-ER (PER09) 2020:330:08:42:03.092   1.0   --    --   52.3779  29.6368 224.15 168.10 172.58   
 ----     46773         CAL-ER (PER05) 2020:330:09:25:33.439   5.6   --    --   13.0000  44.0000 255.78 133.99  34.96   
 ----     46772         CAL-ER (PER08) 2020:330:11:35:15.380   5.0   --    --  243.0000  29.0000 357.98  49.85  93.90   
 ----     46771         CAL-ER (PER10) 2020:330:13:36:28.906   3.0   --    --   56.0000  50.0000 190.37 150.53 100.76   
 ----     46770         CAL-ER (PER11) 2020:330:14:44:33.966   3.0   --    --   60.2999  32.7141 185.37 168.09  17.70   
 ----     46769         CAL-ER (CTI04) 2020:330:17:14:00.749   3.0   --    --  251.0033  26.4850 348.18  48.24 119.98   
801885    22656 0     SPT-CLJ2205-2956 2020:330:19:22:01.734   9.0 ACIS-I NONE 331.2171 -29.9522 288.10  79.36 109.98 dss pspc rass
704131 P1 23719 0             UGC12348 2020:330:22:14:47.541   2.0 ACIS-S NONE 346.3113   0.2054 291.51 103.61  33.42 dss pspc rass
503224    23549 2            AT2020xnd 2020:330:23:06:57.541  20.0 ACIS-S NONE 334.9918  -2.8247 291.08  91.93  11.72 dss pspc rass
 ----     46768         CAL-ER (IAT06) 2020:331:05:14:57.922   0.9   --    --   59.0000  20.0000 289.53 176.93  86.28   
201393    24389 0 2MASS J04214586+2023 2020:331:06:18:45.497  15.0 ACIS-S NONE  65.4427  20.3773  74.00 176.85 146.74 dss pspc rass
 ----     46767         CAL-ER (IAT03) 2020:331:11:08:59.757   0.9   --    --  169.2166 -28.2152  78.08  65.90 111.32   
291542    22749 2                 HZ43 2020:331:11:56:00.213  19.0  HRC-S LETG 199.0841  29.0785  44.82  65.24  71.21 dss pspc rass
 ----     46766         CAL-ER (CAL01) 2020:331:17:43:58.739   0.9   --    --  169.2166 -28.2152  77.91  66.13  71.14   
201393    24871 0 2MASS J04214586+2023 2020:331:18:39:54.085  15.0 ACIS-S NONE  65.4429  20.3762  74.00 177.32 111.33 dss pspc rass
704064    23652 0            3CR 139.2 2020:331:23:15:30.532  13.0 ACIS-S NONE  81.1357  28.1981 109.99 162.02  45.37 dss pspc rass
402260    23482 1          NGC 4485/90 2020:332:03:26:21.010  29.0 ACIS-S NONE 187.6718  41.6708  50.99  81.07  84.04 dss pspc rass
601521 P1 23620 0            PGC025774 2020:332:11:59:04.431  10.0 ACIS-S NONE 137.3223  -1.1900  67.68 104.57  62.51 dss pspc rass
201298    24829 0 Orion Nebula Cluster 2020:332:15:15:52.031  26.7 ACIS-S HETG  83.8080  -5.4096  35.96 146.78  60.14 dss pspc rass
 ----     46765         CAL-ER (CTI08) 2020:332:23:01:05.670   1.0   --    --   70.7799  12.1571  34.55 168.78  21.93   
 ----     46764         CAL-ER (CTI05) 2020:333:00:11:44.580   1.0   --    --   57.4216  31.1467 212.60 168.51 173.17   
 ----     46763         CAL-ER (PER12) 2020:333:00:55:55.778   5.6   --    --   33.0000  61.2522 222.49 134.62  35.09   
 ----     46762         CAL-ER (PER13) 2020:333:03:03:35.130   1.0   --    --  335.4509  -4.0467 291.34  89.72  84.70   
 ----     46761         CAL-ER (PER14) 2020:333:03:50:01.347  12.0   --    --   36.0000  20.0000 277.86 153.61  64.22   
 ----     46760         CAL-ER (CAL01) 2020:333:07:49:03.497   2.0   --    --  298.0000 -27.0000 275.61  48.89 105.91   
 ----     46759         CAL-ER (CTI06) 2020:333:08:43:30.686   3.0   --    --  298.0000 -27.0000 275.61  48.86   0.00   
201347    24425 1               WR 140 2020:333:10:50:14.686  30.0 ACIS-S HETG 305.0902  43.8670 301.02  85.59  75.38 dss pspc rass
704109 P1 23697 0 WISEAJ025027.19+4647 2020:333:19:40:22.286   7.8 ACIS-S NONE  42.6247  46.8117 223.04 148.90  63.86 dss pspc rass
704064    24870 0            3CR 139.2 2020:333:22:26:56.554  13.0 ACIS-S NONE  81.1334  28.2002 109.99 163.92  94.10 dss pspc rass
 ----     46758         CAL-ER (IAT05) 2020:334:02:52:58.523   0.9   --    --   57.0000  10.0000 326.63 166.04 152.40   
704005    24780 0             NGC 6860 2020:334:03:48:44.190  30.0 ACIS-S HETG 302.1924 -61.0776 248.00  55.49 110.60 dss pspc rass
704137 P1 23725 0        MCG-02.08.038 2020:334:12:43:29.239   2.0 ACIS-S NONE  44.9952 -10.8221 328.02 141.77  86.63 dss pspc rass
201298    24623 0 Orion Nebula Cluster 2020:334:13:47:47.758  25.0 ACIS-S HETG  83.8069  -5.4089  32.73 147.67  69.64 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 11/27/20



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