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.

JAN2020B


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
201256    21579 1            PROCYON 2020:019:14:31:06.176   5.0  HRC-I NONE 114.8018   5.2156 339.56 163.67 174.92 dss pspc rass
801852    21706 0   SPT-CLJ2336-5252 2020:019:16:34:58.590  44.0 ACIS-I NONE 354.0316 -52.8689 250.45  51.83 112.68 dss pspc rass
 ----     47526       CAL-ER (IAT01) 2020:020:05:40:39.575   0.0   --    --  264.0000  13.0000  48.43  49.69 165.82   
790338    22814 2             MKN421 2020:020:06:16:04.436  40.0 ACIS-S LETG 166.1373  38.1679 101.93 137.67  88.04 dss pspc rass
601469 P1 22492 0 J144556.9+165308.7 2020:020:17:55:35.036  13.4 ACIS-S NONE 221.4884  16.8638  67.92  87.27  52.97 dss pspc rass
 ----     47525       CAL-ER (CTI01) 2020:020:22:13:41.636   3.0   --    --  125.0000  21.0000 107.46 177.25  89.83   
 ----     47524       CAL-ER (PER02) 2020:021:01:00:00.000   3.0   --    --  121.1000  31.8000 185.71 168.26  77.22   
 ----     47523       CAL-ER (PER08) 2020:021:06:15:00.000   0.0   --    --  126.5000  16.2000  43.28 174.63 140.63   
 ----     47522       CAL-ER (PER03) 2020:021:07:00:00.000   5.0   --    --  249.7000 -33.7000  92.20  48.58 126.78   
 ----     47521       CAL-ER (CTI02) 2020:021:08:53:24.123   1.0   --    --  264.0000  13.0000  49.65  50.42  65.56   
703962 P1 22575 0       F2M1324+0537 2020:021:09:56:54.319   5.0 ACIS-S NONE 201.0856   5.5950  70.67 102.85  63.06 dss pspc rass
790338    23128 2             MKN421 2020:021:11:46:37.585  15.5 ACIS-S LETG 166.1388  38.1682 103.37 138.52  48.97 dss pspc rass
790339    22815 1             MKN421 2020:021:16:23:27.585  15.0 ACIS-S LETG 166.1408  38.1694 105.98 138.66   2.62 dss pspc rass
 ----     47520       CAL-ER (IAT02) 2020:021:21:08:41.560   0.0   --    --  264.4000  12.3000  50.29  50.02  88.80   
801852    23127 0   SPT-CLJ2336-5252 2020:021:22:00:58.575  45.0 ACIS-I NONE 354.0318 -52.8692 249.79  50.87 163.95 dss pspc rass
 ----     47519       CAL-ER (IAT03) 2020:022:11:23:16.529   0.0   --    --  266.0000  13.0000  49.22  49.67 165.60   
790339    23129 1             MKN421 2020:022:11:59:01.627  40.3 ACIS-S LETG 166.1405  38.1697 105.98 139.21  89.56 dss pspc rass
703928 P1 22540 0         PGC 044558 2020:022:23:42:49.227  10.0 ACIS-S NONE 194.7078  76.3722 105.94 113.75  47.36 dss pspc rass
201296    22332 1           HD 82443 2020:023:02:59:56.198  15.0 ACIS-S NONE 143.1856  27.0036 111.00 161.41  67.27 dss pspc rass
601467 P1 22490 0 J123538.7+041244.8 2020:023:07:37:52.689  12.7 ACIS-S NONE 188.9137   4.1910  70.20 115.70  55.99 dss pspc rass
 ----     47518       CAL-ER (CTI03) 2020:023:11:38:49.720   3.0   --    --  131.1000  19.4000  87.12 174.16  58.43   
 ----     47517       CAL-ER (PER10) 2020:023:15:30:00.000   0.0   --    --  123.0000  17.0000 322.39 176.79 127.40   
 ----     47516       CAL-ER (PER04) 2020:023:16:00:30.872   3.0   --    --   94.0000 -42.0000 328.30 112.09  65.99   
 ----     47515       CAL-ER (PER05) 2020:023:18:00:00.000   3.0   --    --  119.9500  11.9000 327.04 170.88  59.56   
 ----     47514       CAL-ER (PER07) 2020:023:21:30:00.000   0.0   --    --  331.9000 -63.7500 214.67  47.77 123.91   
 ----     47513       CAL-ER (PER06) 2020:023:22:02:37.238   2.0   --    --  248.9000 -35.3000  92.10  51.87  75.47   
 ----     47512       CAL-ER (CTI04) 2020:023:23:06:38.085   3.0   --    --  263.0000  13.0000  52.90  52.91  64.62   
790340    22816 1             MKN421 2020:024:00:53:34.085  28.0 ACIS-S LETG 166.1414  38.1695 106.48 140.21  87.28 dss pspc rass
703925 P1 22537 0      MCG+08-33-046 2020:024:09:12:21.685  10.0 ACIS-S NONE 277.1795  50.3542  28.08  74.20  73.77 dss pspc rass
790340    23130 1             MKN421 2020:024:12:30:55.233  28.0 ACIS-S LETG 166.1404  38.1704 106.48 140.54  73.77 dss pspc rass
 ----     47511       CAL-ER (IAT06) 2020:024:20:53:38.431   0.0   --    --  268.8000  11.7000  50.47  48.28  92.49   
801834    22953 0   SPT-CLJ2320-5233 2020:024:21:45:24.576  47.0 ACIS-I NONE 350.0815 -52.5552 242.35  47.37 161.64 dss pspc rass
 ----     47510       CAL-ER (IAT07) 2020:025:11:30:46.834   0.0   --    --  328.5000  25.9000 332.99  49.65 119.42   
402196    23116 0  4FGL J0336.0+7502 2020:025:12:00:49.937  15.0 ACIS-S NONE  54.0142  75.0756 258.60 112.82  63.91 dss pspc rass
703603    20602 1      PSS 0926+3055 2020:025:16:42:13.311   5.0 ACIS-S NONE 141.6760  30.9119 137.99 162.39  71.50 dss pspc rass
703920 P1 22532 0    SDSS J0950+0246 2020:025:18:41:13.967  16.0 ACIS-S NONE 147.5909   2.7596  49.12 154.33  90.80 dss pspc rass
201272 P1 22302 0    131242.4+555554 2020:025:23:46:29.505  15.0 ACIS-S NONE 198.2028  55.9150 104.98 116.43 103.92 dss pspc rass
 ----     47509       CAL-ER (CTI08) 2020:026:04:27:26.567   0.9   --    --  130.0000  20.5000 125.88 177.36  66.01   
 ----     47508       CAL-ER (CTI05) 2020:026:05:18:41.411   4.0   --    --  130.0000  16.0000  35.68 176.39  90.29   
 ----     47507       CAL-ER (PER13) 2020:026:07:11:32.325   0.1   --    --  119.7000  20.3000 261.02 172.19 138.07   
 ----     47506       CAL-ER (PER09) 2020:026:07:40:39.988   6.0   --    --   69.0000   5.0000 289.06 121.02  53.82   
 ----     47505       CAL-ER (PER11) 2020:026:09:50:33.341   3.0   --    --  117.1000  -0.3000 331.42 158.06  64.75   
 ----     47504       CAL-ER (PER14) 2020:026:10:57:16.400   3.0   --    --  121.0000  10.2000 322.59 169.00  14.04   
 ----     47503       CAL-ER (CTI06) 2020:026:14:45:29.785   0.0   --    --  355.1500 -45.5500 251.20  46.93 122.04   
 ----     47502       CAL-ER (CTI07) 2020:026:15:24:17.749   1.0   --    --  250.0000 -36.0000  92.27  53.65 103.27   
201280    22847 2        Eta Carinae 2020:026:16:37:34.760  15.0 ACIS-S HETG 161.2432 -59.6990  19.98  97.03  58.92 dss pspc rass
601464 P1 22487 0 J095817.5+183858.1 2020:026:21:25:03.420  11.0 ACIS-S NONE 149.5794  18.6279  80.00 160.05  98.90 dss pspc rass


JAN1320A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
300467    23108 1              R Aqr 2020:012:00:13:21.409  48.0 ACIS-S NONE 355.9410 -15.2685 286.73  59.97  86.91 dss pspc rass
201341    23125 0 Gaia DR2 33657684774 2020:012:14:13:24.596  20.6 ACIS-S NONE 102.6005  19.9601 282.05 169.87 110.49 dss pspc rass
201334    22899 0         NGC 2232-5 2020:012:20:23:48.071   9.8 ACIS-I NONE  96.9632  -4.4630 328.79 149.21  52.01 dss pspc rass
 ----     47552       CAL-ER (CTI04) 2020:012:23:27:42.440   1.0   --    --  111.3093  16.7681 335.69 174.61  26.88   
 ----     47551       CAL-ER (CTI02) 2020:013:00:34:00.236   7.0   --    --  120.0000  26.0000 125.94 172.81 153.58   
 ----     47550       CAL-ER (PER02) 2020:013:03:13:42.309   1.0   --    --  254.0000   8.0000  52.09  49.06 123.91   
 ----     47549       CAL-ER (PER05) 2020:013:04:06:11.183   5.0   --    --  323.0000  23.0000 325.46  52.84  91.42   
 ----     47548       CAL-ER (PER07) 2020:013:06:11:02.227   5.0   --    --  108.9363  30.9040 207.25 169.65 117.08   
 ----     47547       CAL-ER (PER09) 2020:013:08:16:58.299   1.0   --    --  314.2410  21.8181 334.34  47.65 121.96   
 ----     47546       CAL-ER (CTI05) 2020:013:09:37:19.559   3.0   --    --  342.5477 -54.6599 247.28  48.90 119.39   
201280    22311 2        Eta Carinae 2020:013:11:23:24.401  35.0 ACIS-S HETG 161.2556 -59.7028  42.99  90.13  69.05 dss pspc rass
201338    22903 0         NGC 2232-9 2020:013:21:40:06.234  10.0 ACIS-I NONE  96.6799  -4.4626 326.48 148.57  80.39 dss pspc rass
801886    22716 0            CSWA 11 2020:014:00:55:24.186  32.0 ACIS-S NONE 120.0624   8.1949  19.00 165.77  59.10 dss pspc rass
201280    23126 1        Eta Carinae 2020:014:10:20:59.259  35.0 ACIS-S HETG 161.2562 -59.7020  42.99  90.60  75.38 dss pspc rass
801886    23122 0            CSWA 11 2020:014:20:36:34.334  38.0 ACIS-S NONE 120.0625   8.1950  19.00 166.17  75.38 dss pspc rass
704035    23124 0       MRCB1706-606 2020:015:07:51:48.618  19.1 ACIS-S NONE 257.6671 -60.6985 128.25  47.69 118.82 dss pspc rass
 ----     47545       CAL-ER (CTI03) 2020:015:13:50:46.880   3.0   --    --  121.6944   5.0085  16.82 163.02 115.29   
 ----     47544       CAL-ER (CAL01) 2020:015:15:25:49.010   7.0   --    --  123.0000  31.0000 148.00 168.63 132.91   
 ----     47543       CAL-ER (PER08) 2020:015:17:44:52.689   1.0   --    --  145.9641  34.6956 110.00 150.96  32.00   
 ----     47542       CAL-ER (CAL01) 2020:015:18:39:15.467   1.0   --    --  254.0000   8.0000  54.41  51.08  99.96   
 ----     47541       CAL-ER (CAL01) 2020:015:19:31:42.701   6.0   --    --  323.0000  23.0000 327.97  51.02  91.29   
 ----     47540       CAL-ER (CAL01) 2020:015:21:53:12.528   3.0   --    --  108.9363  30.9040 217.98 167.92 116.99   
 ----     47539       CAL-ER (CAL01) 2020:016:00:35:48.631   3.0   --    --  119.0741  14.5564  16.42 173.14 162.64   
201280    22846 2        Eta Carinae 2020:016:02:51:57.997  30.0 ACIS-S HETG 161.2546 -59.7040  42.99  91.52  81.83 dss pspc rass
 ----     47538       CAL-ER (CAL01) 2020:016:11:46:49.010   0.0   --    --  211.9049  17.1475  68.60  92.15  87.08   
601437    22970 0                M12 2020:016:12:14:17.610  43.0 ACIS-S NONE 251.8087  -1.9718  63.00  48.42  43.74 dss pspc rass
 ----     47537       CAL-ER (IAT01) 2020:017:00:48:24.390   0.0   --    --  152.9526  27.7367  94.24 147.63  98.76   
201335    22900 0         NGC 2232-6 2020:017:01:37:33.416  10.0 ACIS-I NONE  97.2474  -4.7443 322.22 147.13 149.85 dss pspc rass
201336    22901 0         NGC 2232-7 2020:017:04:32:55.642  10.0 ACIS-I NONE  96.6791  -4.7438 321.30 146.72   1.04 dss pspc rass
201337    22902 0         NGC 2232-8 2020:017:07:28:05.642  10.0 ACIS-I NONE  97.2465  -4.4605 321.56 147.23   0.67 dss pspc rass
 ----     47536       CAL-ER (CAL01) 2020:017:11:03:46.877   0.0   --    --  152.9526  27.7367  94.64 148.00 150.84   
601437    23123 0                M12 2020:017:11:41:34.708  42.0 ACIS-S NONE 251.8087  -1.9717  63.00  49.30  98.76 dss pspc rass
703923 P1 22535 0    SDSS J1005+3312 2020:017:23:59:16.935  20.5 ACIS-S NONE 151.3414  33.1831 105.23 148.86  99.92 dss pspc rass
 ----     47535       CAL-ER (CTI07) 2020:018:06:24:51.014   0.5   --    --  115.6801  -9.3091 353.12 149.77 127.42   
 ----     47534       CAL-ER (CAL01) 2020:018:06:53:27.757   0.9   --    --  119.0741  14.5564 357.16 173.85  24.46   
 ----     47533       CAL-ER (CAL01) 2020:018:08:04:07.698   0.9   --    --  120.0000  26.0000 174.50 174.66 177.67   
 ----     47532       CAL-ER (CAL01) 2020:018:08:47:00.590   0.9   --    --  145.9924  34.6379 113.95 152.81  52.64   
 ----     47531       CAL-ER (CAL01) 2020:018:09:38:31.489   1.0   --    --  247.0000  13.0000  57.57  61.62  91.49   
 ----     47530       CAL-ER (CAL01) 2020:018:10:30:55.755   4.0   --    --  323.0000  23.0000 330.59  49.27  91.07   
 ----     47529       CAL-ER (CAL01) 2020:018:12:19:07.252   3.0   --    --  108.9363  30.9040 225.71 165.92 117.11   
 ----     47528       CAL-ER (CTI06) 2020:018:16:23:13.932   3.0   --    --  105.1244  18.5503 280.91 165.98  54.99   
901413    21392 1          AT2019pev 2020:018:18:28:58.360  30.0 ACIS-S NONE  67.3258   0.6342 294.92 124.90  41.82 dss pspc rass
 ----     47527       CAL-ER (IAT04) 2020:019:03:39:38.183   0.0   --    --  178.8380  40.5953  93.72 126.87 158.24   
601466 P1 22489 0 J162421.4+270408.7 2020:019:04:07:57.511  12.0 ACIS-S NONE 246.0843  27.0463  53.57  70.89  56.12 dss pspc rass
703970 P1 22584 0     DSS J0851+3926 2020:019:08:03:23.899  20.0 ACIS-S NONE 133.0023  39.4338 146.91 158.27  89.73 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 01/17/20



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