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.

MAY2724A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ -------------
201708     28955    1                  SZ Cha 2024:148:01:37:46.492  15.0 ACIS-S NONE 164.5219 -77.2671 275.30 113.00 102.49 dss pspc rass
201560     27240    0                NGC 6204 2024:148:06:13:47.032  17.0 ACIS-I NONE 251.5238 -47.0406  15.34 153.58  47.21 dss pspc rass
590733     28433    2              E0102-72.3 2024:148:11:24:47.398  20.0 ACIS-S NONE  15.9371 -71.9980 135.03  98.93  54.78 dss pspc rass
901833     27237    0        XMM J0.173-0.413 2024:148:17:30:40.730  14.0 ACIS-I NONE 266.9474 -29.0073  74.22 158.55  76.75 dss pspc rass
802067     26953    0        SPT-CLJ2233-5552 2024:148:21:52:50.953  16.7 ACIS-I NONE 338.4514 -55.8665 105.18 105.67  60.02 dss pspc rass
 ----      43420               CAL-ER (CTI01) 2024:149:03:01:03.713   3.0   --    --  253.0000 -26.0000  59.35 171.49  68.44   
 ----      43419               CAL-ER (PER02) 2024:149:06:45:00.000   1.0   --    --   42.0000 -21.2000 150.52  48.37 124.91   
 ----      43418               CAL-ER (PER01) 2024:149:07:40:00.000   1.0   --    --   80.9000 -54.7000 194.84  77.36  48.02   
 ----      43417               CAL-ER (CAL01) 2024:149:08:14:00.000   0.3   --    --   80.9000 -54.7000 194.82  77.36   0.02   
 ----      43416               CAL-ER (CAL01) 2024:149:09:04:00.000   1.0   --    --  243.0000 -52.3000 355.70 149.15  72.03   
 ----      43415               CAL-ER (PER03) 2024:149:09:40:00.000   1.0   --    --  244.0000 -45.0000 356.76 156.48   7.34   
 ----      43414               CAL-ER (PER04) 2024:149:10:45:00.000   1.0   --    --   91.0000 -21.0000 211.98  49.29 109.96   
704539     25558    2    SDSS J110409.96+4345 2024:149:11:55:14.563   4.7 ACIS-S NONE 166.0411  43.7748 247.30  82.49 106.01 dss pspc rass
890235     28472    2                   A1795 2024:149:13:38:51.563  21.0 ACIS-S NONE 207.2183  26.6020 221.40 119.22  37.29 dss pspc rass
590758     28458    1           SNR G21.5-0.9 2024:149:20:11:16.563  10.0  HRC-I NONE 278.4049 -10.5808 113.44 146.94 117.49 dss pspc rass
802067     29424    0        SPT-CLJ2233-5552 2024:149:23:30:51.513  24.0 ACIS-I NONE 338.4527 -55.8676 104.44 106.37  78.37 dss pspc rass
901833     27238    0        XMM J0.173-0.413 2024:150:06:39:39.766  12.0 ACIS-I NONE 266.9474 -29.0085  73.04 159.96  59.87 dss pspc rass
704323     29207    0              Abell 2744 2024:150:10:33:13.470  20.0 ACIS-I NONE   3.6068 -30.4098 122.76  79.68  81.28 dss pspc rass
901833     29254    0        XMM J0.173-0.413 2024:150:16:40:06.772  13.5 ACIS-I NONE 266.9474 -29.0088  72.68 160.35  81.25 dss pspc rass
704323     29427    0              Abell 2744 2024:150:20:58:40.313  19.0 ACIS-I NONE   3.6072 -30.4101 122.55  80.05  81.27 dss pspc rass
201560     27245    0                NGC 6204 2024:151:02:49:43.120  17.0 ACIS-I NONE 251.5205 -47.0401   9.39 154.45  84.96 dss pspc rass
802058     26944    0     ACT-CL J0442.6-5905 2024:151:08:05:00.287  19.0 ACIS-S NONE  70.6486 -59.0798 183.06  80.90  74.04 dss pspc rass
201560     29425    0                NGC 6204 2024:151:13:53:36.731  16.4 ACIS-I NONE 251.5198 -47.0401   8.41 154.58  73.98 dss pspc rass
 ----      43413               CAL-ER (CTI02) 2024:151:19:06:45.586   3.0   --    --   67.8000 -26.9000 179.93  48.76 106.00   
 ----      43412               CAL-ER (PER07) 2024:151:21:45:00.000   2.0   --    --  252.0000 -31.0000  22.56 170.20 122.43   
 ----      43411               CAL-ER (PER05) 2024:151:23:15:00.000   1.0   --    --   11.9000 -36.1000 128.20  78.57  93.77   
 ----      43410               CAL-ER (CAL01) 2024:151:23:41:00.000   0.3   --    --   11.9000 -36.1000 128.19  78.58   0.01   
 ----      43409               CAL-ER (CAL01) 2024:152:00:30:00.000   1.0   --    --  268.0000 -41.0000  47.43 154.55  76.18   
 ----      43408               CAL-ER (PER06) 2024:152:01:35:00.000   1.0   --    --  239.0000 -24.0000 282.23 171.36 111.87   
704726     26805    0    SDSS J081558.35+1540 2024:152:02:59:59.621   3.9 ACIS-S NONE 123.9905  15.7078 254.14  52.94 119.34 dss pspc rass
201741 CCT 29421    0    2RXS J152927.6-28503 2024:152:04:45:53.845  11.0 ACIS-S NONE 232.3410 -28.8286 292.13 164.07 114.32 dss pspc rass
704653     27145    0    2MASS J08194059+0823 2024:152:08:29:09.020  14.8 ACIS-I NONE 124.9133   8.4200 249.50  55.87 109.89 dss pspc rass
890236     28473    2                   A1795 2024:152:13:08:58.692  20.0 ACIS-S NONE 207.2191  26.6046 223.53 117.06  79.48 dss pspc rass
402427     26569    2                  SS 433 2024:152:19:24:43.692  10.0  HRC-I NONE 287.9764   4.9730 126.65 133.21 102.15 dss pspc rass
802058     29422    0     ACT-CL J0442.6-5905 2024:152:22:55:40.657  11.0 ACIS-S NONE  70.6546 -59.0787 176.00  81.08 129.52 dss pspc rass
402425     29264    0      Swift J1728.9-3613 2024:153:02:34:12.109  10.0 ACIS-I NONE 262.2397 -36.2630  42.04 161.79  88.61 dss pspc rass
802058     29423    0     ACT-CL J0442.6-5905 2024:153:05:55:52.793  21.0 ACIS-S NONE  70.6521 -59.0791 179.00  81.11  87.80 dss pspc rass
201560     29426    0                NGC 6204 2024:153:12:17:49.138  10.0 ACIS-I NONE 251.5173 -47.0395   4.16 154.98  73.98 dss pspc rass
802138 P1  28323    0       PSZ2G346.36-77.71 2024:153:15:38:02.467  11.1 ACIS-I NONE   2.5081 -35.6717 121.04  85.88  81.25 dss pspc rass
901833     29255    0        XMM J0.173-0.413 2024:153:19:15:54.601  14.0 ACIS-I NONE 266.9472 -29.0117  69.68 163.18  78.16 dss pspc rass
802152     28721    0    1E 2215.7-0404 / 1E  2024:153:23:40:53.725  25.0 ACIS-I NONE 334.6289  -3.7830 117.00  96.49  72.68 dss pspc rass
901833     29428    0        XMM J0.173-0.413 2024:154:07:09:14.952  13.1 ACIS-I NONE 266.9471 -29.0121  69.17 163.64  72.84 dss pspc rass
 ----      43407               CAL-ER (CTI03) 2024:154:11:05:59.950   3.0   --    --  255.0000 -23.0000  80.06 175.85  20.28   
 ----      43406               CAL-ER (PER08) 2024:154:13:00:00.000   3.0   --    --   27.9000  -3.6000 123.78  49.12 127.28   
 ----      43405               CAL-ER (CAL01) 2024:154:14:45:00.000   0.9   --    --  304.0000  18.0000 125.61 114.16  85.93   
 ----      43404               CAL-ER (CAL01) 2024:154:15:07:00.000   0.3   --    --  304.0000  18.0000 125.62 114.17   0.01   
 ----      43403               CAL-ER (CAL01) 2024:154:15:58:00.000   1.0   --    --  265.0000 -36.0000  45.85 161.51  94.63   
 ----      43402               CAL-ER (CAL01) 2024:154:17:00:00.000   3.0   --    --   47.0000 -19.0000 149.48  47.37 114.33   
901833     29429    0        XMM J0.173-0.413 2024:154:18:53:40.387  10.0 ACIS-I NONE 266.9472 -29.0145  68.63 164.05 119.07 dss pspc rass
601598 P1  28104    0                  UGC685 2024:154:22:21:32.186  15.7 ACIS-I NONE  16.8741  16.6783 101.00  51.12 115.64 dss pspc rass


MAY2024A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ -------------
 ----      43440               CAL-ER (PER01) 2024:141:06:18:47.657   1.0   --    --  330.0000   0.8000 110.00  87.10  86.82   
 ----      43439               CAL-ER (PER02) 2024:141:07:08:48.249   0.9   --    --  250.6600 -20.0900  91.99 167.40  80.29   
 ----      43438               CAL-ER (PER04) 2024:141:07:58:02.093   0.9   --    --  331.0100   0.7394 110.02  86.23  81.21   
 ----      43437               CAL-ER (PER03) 2024:141:09:52:00.000   1.0   --    --  331.0100   0.7394 110.05  86.30   0.02   
 ----      43436               CAL-ER (CAL01) 2024:141:10:50:00.000   0.9   --    --  331.0100   0.7394 110.05  86.33   0.00   
590731     28431    2              E0102-72.3 2024:141:13:28:55.316  25.0 ACIS-I NONE  16.0849 -72.0217 141.33  96.25  78.16 dss pspc rass
300556 CCT 29415    0         GSC 06806-00016 2024:141:20:58:11.532  17.5 ACIS-S NONE 244.8761 -28.1487  40.25 169.70  76.97 dss pspc rass
402412     27076    0       LMC Deep Field 06 2024:142:02:25:38.447  14.9 ACIS-I NONE  83.2317 -67.0168 203.55  89.16  91.27 dss pspc rass
300556 CCT 29419    0         GSC 06806-00016 2024:142:07:09:37.744  18.5 ACIS-S NONE 244.8744 -28.1500  38.62 170.00  90.70 dss pspc rass
704990 P1  28181    0              ESO301-009 2024:142:12:57:03.306  16.0 ACIS-S NONE  50.7654 -42.1827 173.02  62.82 109.92 dss pspc rass
704756     26835    0    SDSS J114350.30+3629 2024:142:18:10:48.180   3.6 ACIS-S NONE 175.9661  36.5138 237.36  97.99 142.12 dss pspc rass
704785     26864    0    SDSSJ112339.00+23225 2024:142:19:38:48.180   3.5 ACIS-S NONE 170.9240  23.4088 226.00 100.76  19.57 dss pspc rass
802059     27214    0    A2029 / [SGW2019] SI 2024:142:21:05:26.230  17.5 ACIS-I NONE 227.7994   5.2989 212.00 152.20  57.60 dss pspc rass
201707     28954    1          Ass Cha T 2-54 2024:143:02:43:47.889   5.0 ACIS-S NONE 168.0988 -77.3516 286.92 113.97 140.37 dss pspc rass
601579     29236    0                ngc 3109 2024:143:04:34:53.956   9.9 ACIS-I NONE 150.7713 -26.1397 252.20 100.20  55.21 dss pspc rass
 ----      43435               CAL-ER (IAT01) 2024:143:07:57:04.300   0.9   --    --  229.5469   5.1558 212.00 152.71  97.53   
802059     29418    0    A2029 / [SGW2019] SI 2024:143:08:22:19.685  10.1 ACIS-I NONE 227.7989   5.2981 212.00 151.92   1.75 dss pspc rass
 ----      43434               CAL-ER (CAL01) 2024:143:11:20:32.537   0.9   --    --  229.8450   5.3400 212.00 152.56   2.05   
402450     27357    2                  SS 433 2024:143:12:13:54.952  20.0 ACIS-S HETG 287.9774   4.9669 121.00 126.04  99.86 dss pspc rass
 ----      43433               CAL-ER (PER06) 2024:143:18:13:14.919   3.0   --    --  247.2800 -18.0320 110.30 172.45  46.60   
 ----      43432               CAL-ER (PER07) 2024:143:19:44:26.793   6.0   --    --  355.9797  35.9331  92.80  57.28 115.64   
 ----      43431               CAL-ER (CAL01) 2024:143:22:05:38.214   3.0   --    --  247.2800 -18.0320 110.94 172.57 115.61   
 ----      43430               CAL-ER (CAL01) 2024:144:00:30:00.000   0.9   --    --  345.0000   5.0000 109.98  74.18  99.83   
 ----      43429               CAL-ER (CAL01) 2024:144:01:20:20.000   1.0   --    --  345.0000   5.0000 109.99  74.21   0.01   
 ----      43428               CAL-ER (CAL01) 2024:144:02:19:20.000   0.9   --    --  345.0000   5.0000 109.99  74.24   0.00   
590734     28434    2              E0102-72.3 2024:144:04:33:09.002  20.0 ACIS-S NONE  15.9367 -71.9996 138.87  97.29  79.80 dss pspc rass
402425     27085    0      Swift J1728.9-3613 2024:144:10:36:39.920  14.0 ACIS-I NONE 262.2460 -36.2629  56.59 155.32  66.07 dss pspc rass
802068     26954    0        SPT-CLJ2214-5501 2024:144:14:56:52.673  40.6 ACIS-I NONE 333.5753 -55.0202 104.54 105.11  51.21 dss pspc rass
402425     29417    0      Swift J1728.9-3613 2024:145:02:39:46.005  15.0 ACIS-I NONE 262.2460 -36.2608  55.69 155.86  51.10 dss pspc rass
402426     26568    2                  SS 433 2024:145:07:32:11.005  10.0  HRC-I NONE 287.9722   4.9732 120.99 127.46  73.61 dss pspc rass
704707     27158    0    FIRST J120041.4+3147 2024:145:10:59:48.699  26.0 ACIS-S NONE 180.1813  31.8179 230.00 101.24 114.58 dss pspc rass
705187 CCT 29414    0          IRAS15091-2107 2024:145:18:46:46.267  10.0 ACIS-S NONE 227.9908 -21.2961 269.47 167.15  81.57 dss pspc rass
601579     29235    0                ngc 3109 2024:145:22:04:50.428  10.8 ACIS-I NONE 150.7724 -26.1438 250.65  98.08  71.56 dss pspc rass
402525 DDT 29396    0                Gaia BH3 2024:146:01:59:11.723  10.0 ACIS-S NONE 294.8472  14.9177 123.40 117.00 174.85 dss pspc rass
402510     28842    0                  GX 9+9 2024:146:05:12:04.393  27.3 ACIS-S HETG 262.9482 -16.9801 104.71 160.00  48.14 dss pspc rass
 ----      43427               CAL-ER (CAL01) 2024:146:13:25:25.606   3.0   --    --  355.9797  35.9331  94.84  59.25 102.77   
 ----      43426               CAL-ER (CAL01) 2024:146:14:56:33.926   3.0   --    --  247.3420 -18.1100 124.02 174.65 115.37   
 ----      43425               CAL-ER (CAL01) 2024:146:16:21:38.015   0.9   --    --  331.0100   0.7394 111.08  91.26  88.06   
 ----      43424               CAL-ER (CAL01) 2024:146:16:47:00.000   0.9   --    --  331.0100   0.7394 111.09  91.27   0.00   
 ----      43423               CAL-ER (CAL01) 2024:146:17:41:00.000   0.9   --    --  331.0100   0.7394 111.09  91.30   0.00   
 ----      43422               CAL-ER (PER10) 2024:146:18:18:51.394   0.9   --    --    0.6910  10.8165 108.19  60.17  31.16   
 ----      43421               CAL-ER (PER09) 2024:146:19:29:57.333   0.9   --    --  125.2010   9.8596 251.29  60.86 179.62   
802061     27218    0     ACT-CL J0947.9-0120 2024:146:20:33:50.071  16.0 ACIS-S NONE 146.9965  -1.3075 244.50  85.05  24.93 dss pspc rass
503381     26621    0        1E 161348-5055.1 2024:147:01:39:10.505  19.0 ACIS-I NONE 244.3757 -51.0509 354.98 150.02 104.28 dss pspc rass
802061     29218    0     ACT-CL J0947.9-0120 2024:147:07:34:54.727  17.0 ACIS-S NONE 146.9985  -1.3082 240.00  84.61 106.07 dss pspc rass
503381     29416    0        1E 161348-5055.1 2024:147:12:57:56.609  16.0 ACIS-I NONE 244.3785 -51.0524   1.60 150.10 108.89 dss pspc rass
802152     28722    0    1E 2215.7-0404 / 1E  2024:147:18:02:49.972  25.0 ACIS-I NONE 334.6279  -3.7830 115.00  90.54 102.25 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 05/24/24



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