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.

JUN0523A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ -------------
 ----      44457               CAL-ER (IAT01) 2023:156:00:51:14.057   0.9   --    --  342.0103  -7.9582 112.16  93.45 118.84   
201468     25123    0           Trifid Nebula 2023:156:01:37:58.864  26.0 ACIS-S HETG 270.6090 -23.0536  96.00 163.30  70.04 dss pspc rass
291681     25593    3                   ArLac 2023:156:09:33:43.864   5.0  HRC-I NONE 332.1933  45.7279 110.98  81.13  92.79 dss pspc rass
802031 P1  26917    0      PSZ2 G109.14-28.02 2023:156:11:21:34.864  10.0 ACIS-I NONE 358.3304  33.2893 102.98  65.49  25.13 dss pspc rass
201468     27890    0           Trifid Nebula 2023:156:14:46:31.164  21.0 ACIS-S HETG 270.6080 -23.0561  91.39 163.83 102.47 dss pspc rass
704938 CCT 27884    0           B2.2 0038+25B 2023:156:21:16:09.912  14.7 ACIS-S NONE  10.3448  25.8068 101.15  57.03 108.66 dss pspc rass
201468     27891    0           Trifid Nebula 2023:157:02:00:50.295  10.9 ACIS-S HETG 270.6082 -23.0580  90.00 164.28 108.78 dss pspc rass
 ----      44456               CAL-ER (PER02) 2023:157:05:42:42.601   3.0   --    --   27.1000 -11.0000 126.58  56.67 109.79   
 ----      44455               CAL-ER (PER01) 2023:157:07:45:00.000   1.0   --    --  293.0000 -53.5000  59.30 137.25  83.67   
 ----      44454               CAL-ER (CAL01) 2023:157:08:35:00.000   1.8   --    --  293.0000 -53.5000  59.28 137.27   0.03   
 ----      44453               CAL-ER (CAL01) 2023:157:09:13:30.000   0.9   --    --  293.0000 -53.5000  59.26 137.29   0.02   
 ----      44452               CAL-ER (PER03) 2023:157:09:52:48.445   3.0   --    --  260.7000 -28.1000  49.88 171.73  36.84   
 ----      44451               CAL-ER (PER04) 2023:157:11:36:49.416   3.0   --    --  247.8000 -18.2000 231.51 172.76 173.32   
 ----      44450               CAL-ER (IAT02) 2023:157:13:07:14.726   7.0   --    --  145.2731  51.8079 269.69  60.96 112.15   
 ----      44449               CAL-ER (IAT03) 2023:157:15:37:23.739   0.9   --    --  226.5369   5.8429 208.00 140.80  80.93   
801972     27848    0              Abell 2029 2023:157:16:20:12.339  11.2 ACIS-I NONE 227.7481   5.7657 208.00 141.64   1.21 dss pspc rass
 ----      44448               CAL-ER (CAL01) 2023:157:19:36:08.332   0.9   --    --  226.5369   5.8429 208.00 140.67   1.21   
291682     25594    2                   ArLac 2023:157:20:31:14.332   1.0  HRC-I NONE 332.2100  45.7118 115.97  81.95  99.86 dss pspc rass
291683     25595    2                   ArLac 2023:157:20:56:24.332   1.0  HRC-I NONE 332.2209  45.7341 115.96  81.94   0.02 dss pspc rass
291684     25596    2                   ArLac 2023:157:21:21:34.332   1.0  HRC-I NONE 332.1890  45.7418 115.99  81.97   0.02 dss pspc rass
291685     25597    2                   ArLac 2023:157:21:46:44.332   1.0  HRC-I NONE 332.1779  45.7196 115.99  82.00   0.02 dss pspc rass
291686     25598    2                   ArLac 2023:157:22:11:54.332   1.0  HRC-I NONE 332.2444  45.7161 115.95  81.97   0.05 dss pspc rass
291687     25599    2                   ArLac 2023:157:22:37:04.332   1.0  HRC-I NONE 332.2148  45.7585 115.97  81.98   0.05 dss pspc rass
291688     25600    2                   ArLac 2023:157:23:02:14.332   1.0  HRC-I NONE 332.1539  45.7379 116.01  82.04   0.05 dss pspc rass
291689     25601    2                   ArLac 2023:157:23:27:24.332   1.0  HRC-I NONE 332.1835  45.6956 115.99  82.05   0.05 dss pspc rass
402351     26089    0                  GX 1+4 2023:158:00:21:52.181  23.5 ACIS-S HETG 263.0236 -24.7705  94.01 171.90 100.34 dss pspc rass
 ----      44447               CAL-ER (IAT06) 2023:158:07:18:21.375   1.0   --    --  306.4000 -14.8000 107.35 130.74  41.88   
291690     25602    2                   ArLac 2023:158:08:14:26.375   1.0  HRC-I NONE 332.2295  45.6805 114.65  82.25  66.44 dss pspc rass
291691     25603    2                   ArLac 2023:158:08:39:36.375   1.0  HRC-I NONE 332.2648  45.7468 114.63  82.21   0.07 dss pspc rass
291692     25604    2                   ArLac 2023:158:09:04:46.375   1.0  HRC-I NONE 332.1699  45.7713 114.71  82.27   0.07 dss pspc rass
291693     25605    2                   ArLac 2023:158:09:29:56.375   1.0  HRC-I NONE 332.1348  45.7049 114.75  82.33   0.07 dss pspc rass
291694     25606    2                   ArLac 2023:158:09:55:06.375   1.0  HRC-I NONE 332.2894  45.7027 114.66  82.25   0.11 dss pspc rass
291695     25607    2                   ArLac 2023:158:10:20:16.375   1.0  HRC-I NONE 332.2330  45.7884 114.70  82.26   0.09 dss pspc rass
291696     25608    2                   ArLac 2023:158:10:45:26.375   1.0  HRC-I NONE 332.1102  45.7489 114.80  82.36   0.10 dss pspc rass
291697     25609    2                   ArLac 2023:158:11:10:36.375   1.0  HRC-I NONE 332.1669  45.6633 114.79  82.37   0.10 dss pspc rass
402351     27893    0                  GX 1+4 2023:158:12:04:59.045  12.5 ACIS-S HETG 263.0242 -24.7716  94.01 172.37  99.95 dss pspc rass
 ----      44446               CAL-ER (IAT04) 2023:158:15:52:12.994   0.9   --    --  263.0703 -24.9886  73.94 172.42  20.09   
704419     25715    0          QSO J0041-4936 2023:158:16:42:34.314  35.0 ACIS-I NONE  10.4311 -49.5698 123.35  92.22  86.27 dss pspc rass
402351     27894    0                  GX 1+4 2023:159:03:00:39.688  17.0 ACIS-S HETG 263.0136 -24.7734  74.66 172.97  86.65 dss pspc rass
704419     25729    0          QSO J0041-4936 2023:159:08:18:42.212  28.0 ACIS-I NONE  10.4287 -49.5687 124.07  92.64  86.44 dss pspc rass
 ----      44445               CAL-ER (IAT05) 2023:159:16:14:47.596   0.9   --    --   11.4380 -48.3254 124.03  91.63   1.62   
704323     27563    0              Abell 2744 2023:159:16:49:02.971  11.9 ACIS-I NONE   3.6106 -30.4150 116.01  87.65  19.11 dss pspc rass
 ----      44444               CAL-ER (PER05) 2023:159:20:42:07.939   1.2   --    --  264.2033 -29.2915  49.07 170.48  83.02   
 ----      44443               CAL-ER (PER17) 2023:159:21:42:28.085   0.9   --    --  252.0000 -24.9000 295.91 175.44 108.01   
 ----      44442               CAL-ER (CAL01) 2023:159:23:41:00.000   1.0   --    --  139.4000 -31.2000 236.15  80.89  95.05   
 ----      44441               CAL-ER (CAL01) 2023:160:00:01:40.000   1.9   --    --  139.4000 -31.2000 236.14  80.89   0.01   
 ----      44440               CAL-ER (CAL01) 2023:160:00:41:50.000   0.9   --    --  139.4000 -31.2000 236.13  80.88   0.02   
 ----      44439               CAL-ER (PER07) 2023:160:01:31:57.796   1.0   --    --  243.6000 -30.6000 300.61 166.07  85.26   
 ----      44438               CAL-ER (PER06) 2023:160:02:27:38.952   1.0   --    --  120.2000 -19.9000 226.98  60.29 105.84   
 ----      44437               CAL-ER (PER09) 2023:160:03:06:51.590   0.9   --    --  150.1000 -40.1000 242.16  92.82  32.57   
704323     25941    0              Abell 2744 2023:160:04:18:29.433  33.0 ACIS-I NONE   3.6085 -30.4146 114.01  88.04 102.97 dss pspc rass
201628 CCT 27887    0     HEP G009.913-01.001 2023:160:14:03:07.225  10.0 ACIS-I NONE 272.8469 -20.8637 100.74 165.30  86.08 dss pspc rass
291698     25610    2                   ArLac 2023:160:17:32:12.225   1.0  HRC-I NONE 332.2582  45.6404 116.45  83.64  90.34 dss pspc rass
291699     25611    2                   ArLac 2023:160:17:57:22.225   1.0  HRC-I NONE 332.3227  45.7745 116.41  83.55   0.14 dss pspc rass
291700     25612    2                   ArLac 2023:160:18:22:32.225   1.0  HRC-I NONE 332.1304  45.8194 116.55  83.66   0.14 dss pspc rass
291701     25613    2                   ArLac 2023:160:18:47:42.225   1.0  HRC-I NONE 332.0663  45.6852 116.62  83.77   0.14 dss pspc rass
201324     22667    1                  70 OPH 2023:160:19:35:04.531   5.0  HRC-I NONE 271.3855   2.4945 152.47 151.18  68.42 dss pspc rass
201629 CCT 27888    0    2RXS J164927.6-15400 2023:160:21:28:51.049  10.0 ACIS-S NONE 252.3810 -15.6467 212.76 171.31  67.24 dss pspc rass
601563     25238    0                 Mrk 153 2023:161:00:53:47.640  11.8 ACIS-S NONE 162.2615  52.3599 259.53  68.86 102.49 dss pspc rass
 ----      44436               CAL-ER (IAT08) 2023:161:04:32:02.618   0.9   --    --  197.6474  37.0968 233.68  97.53  28.99   
704255     24784    0             MR 2251-178 2023:161:05:36:20.931  10.0  HRC-S LETG 343.5422 -17.5971 110.88 100.56 149.05 dss pspc rass
802113 CCT 27885    0        CIZAJ1844.5-3724 2023:161:08:51:56.045  11.0 ACIS-I NONE 281.1467 -37.4005  60.53 155.40  60.38 dss pspc rass
704323     27896    0              Abell 2744 2023:161:12:25:35.838  14.0 ACIS-I NONE   3.6091 -30.4133 117.43  89.16  66.73 dss pspc rass
704255     27889    0             MR 2251-178 2023:161:17:01:20.838  10.1  HRC-S LETG 343.5414 -17.5965 110.80 101.02  22.37 dss pspc rass
201627 CCT 27886    0     HEP G024.300+00.763 2023:161:20:21:14.417  10.0 ACIS-I NONE 278.2355  -7.3279 131.61 155.39  73.02 dss pspc rass
 ----      44435               CAL-ER (IAT07) 2023:161:23:47:04.901   0.9   --    --  233.3833  -1.7988 227.15 147.63 106.54   
601563     27892    0                 Mrk 153 2023:162:00:36:06.712   9.6 ACIS-S NONE 162.2631  52.3586 258.01  68.17  80.31 dss pspc rass
704937 CCT 27883    0         IGR J16385-2057 2023:162:03:56:30.190  11.0 ACIS-S NONE 249.6258 -20.8978 254.43 171.24 108.26 dss pspc rass
503386 TOO 26626    1               AT2023fhn 2023:162:07:38:28.993  17.0 ACIS-S NONE 152.0145  21.1008 251.00  66.98 104.16 dss pspc rass
 ----      44434               CAL-ER (PER10) 2023:162:13:01:02.303   0.9   --    --  250.3697 -20.5549 251.43 171.45 104.68   
 ----      44433               CAL-ER (PER13) 2023:162:13:45:32.065   0.9   --    --  251.5000 -29.5000 311.20 170.55  59.91   
 ----      44432               CAL-ER (PER11) 2023:162:15:10:00.000   0.9   --    --  145.8000 -19.9000 239.70  77.81  93.85   
 ----      44431               CAL-ER (CAL01) 2023:162:15:29:41.000   1.9   --    --  145.8000 -19.9000 239.69  77.80   0.01   
 ----      44430               CAL-ER (CAL01) 2023:162:16:09:51.000   0.9   --    --  145.8000 -19.9000 239.68  77.78   0.01   
 ----      44429               CAL-ER (PER16) 2023:162:16:49:17.035   1.8   --    --  181.7000  -6.4000 247.76 103.86  37.36   
 ----      44428               CAL-ER (PER18) 2023:162:17:48:16.843   0.9   --    --  239.9206 -12.9231 238.47 158.94  60.74   
503386 TOO 27895    1               AT2023fhn 2023:162:20:22:42.755  11.0 ACIS-S NONE 152.0141  21.1019 251.50  66.50  92.81 dss pspc rass
503329     25206    2               LMC N132D 2023:163:00:10:03.755  12.5  HRC-I NONE  81.3180 -69.6323 177.06  92.71 106.24 dss pspc rass


MAY2923A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ -------------
901445     23881    1             JWST-DTDF-1 2023:148:20:44:44.030  30.0 ACIS-I NONE 260.7471  65.8275 165.50  91.93  67.84 dss pspc rass
 ----      44480               CAL-ER (CTI01) 2023:149:05:40:16.778   3.0   --    --  248.1500 -18.7000 139.10 176.26  90.16   
 ----      44479               CAL-ER (PER01) 2023:149:07:30:00.000   1.0   --    --  253.0000 -29.0000  43.53 169.97  98.02   
 ----      44478               CAL-ER (PER02) 2023:149:08:35:00.000   1.5   --    --   33.4000 -36.8000 147.05  65.79 104.74   
 ----      44477               CAL-ER (PER03) 2023:149:09:45:00.000   1.0   --    --  266.0000 -53.0000  34.19 144.91  79.33   
 ----      44476               CAL-ER (CAL01) 2023:149:10:11:00.000   1.0   --    --  266.0000 -53.0000  34.17 144.92   0.02   
 ----      44475               CAL-ER (CAL01) 2023:149:10:54:00.000   1.0   --    --  266.0000 -53.0000  34.14 144.94   0.03   
 ----      44474               CAL-ER (PER04) 2023:149:11:50:00.000   3.0   --    --   33.4000 -36.8000 146.95  65.86  79.32   
 ----      44473               CAL-ER (PER05) 2023:149:14:25:00.000   1.0   --    --  289.0000 -18.0000  90.00 139.38  90.36   
802111 CCT 27874    0      CLJ225420.5-462049 2023:149:15:25:43.096  15.0 ACIS-I NONE 343.6003 -46.3411 110.46 100.37  53.94 dss pspc rass
901832     26107    0                GX 340+0 2023:149:20:05:34.419  29.0 ACIS-S HETG 251.4222 -45.6244  12.01 155.58  64.60 dss pspc rass
201626 CCT 27873    0    2RXS J232203.0-46530 2023:150:04:39:16.231  20.0 ACIS-S NONE 350.5372 -46.9014 114.80  96.60  66.89 dss pspc rass
201471     25126    1              Apep Plume 2023:150:10:43:58.950  15.0 ACIS-S HETG 240.1733 -51.7172 347.89 149.52  71.45 dss pspc rass
802041 P1  26927    0        MCXCJ0027.3-5015 2023:150:15:26:06.550  20.0 ACIS-I NONE   6.8712 -50.2280 126.35  89.29  72.15 dss pspc rass
201471     27879    1              Apep Plume 2023:150:21:31:02.015  25.0 ACIS-S HETG 240.1741 -51.7167 347.03 149.52  72.41 dss pspc rass
704936 CCT 27870    0      SWIFT J0007.8-4133 2023:151:05:00:37.946  10.0 ACIS-I NONE   1.9783 -41.3455 120.02  87.52  78.44 dss pspc rass
704338     25294    0    2MASX J17050125-2445 2023:151:08:23:20.224  12.5 ACIS-S NONE 256.2651 -24.7741  89.00 171.58  92.42 dss pspc rass
291706     27247    0                  ar Lac 2023:151:12:34:05.224  10.0  HRC-I NONE 332.1922  45.7278 109.40  78.32 104.26 dss pspc rass
503451 DDT 27862    1              SN 2023ixf 2023:151:15:51:25.839  20.3 ACIS-S NONE 210.9358  54.3335 214.33  97.43  68.30 dss pspc rass
 ----      44472               CAL-ER (CTI02) 2023:151:22:05:06.928   3.0   --    --  252.8000 -14.6000 150.12 171.51  88.42   
 ----      44471               CAL-ER (PER06) 2023:152:00:00:00.000   1.0   --    --  244.0000 -32.0000 338.02 169.22 168.74   
 ----      44470               CAL-ER (PER07) 2023:152:01:00:00.000   1.0   --    --   97.4000 -34.1000 210.50  62.48 106.89   
 ----      44469               CAL-ER (CAL01) 2023:152:01:40:00.000   1.0   --    --   97.4000 -34.1000 210.48  62.48   0.03   
 ----      44468               CAL-ER (CAL01) 2023:152:02:25:00.000   1.0   --    --   97.4000 -34.1000 210.45  62.47   0.03   
 ----      44467               CAL-ER (PER08) 2023:152:03:40:00.000   1.0   --    --  355.0000  48.0000  93.48  62.97 160.82   
 ----      44466               CAL-ER (PER09) 2023:152:04:45:00.000   1.0   --    --  250.0000 -17.0000 162.00 174.85 114.13   
901445     27876    1             JWST-DTDF-1 2023:152:06:08:36.419  20.0 ACIS-I NONE 260.7490  65.8289 168.71  91.72  84.01 dss pspc rass
503377     26617    0          PSR J1709-1640 2023:152:12:17:57.178  25.0 ACIS-I NONE 257.3894 -16.6424 124.85 170.33  92.31 dss pspc rass
402386 TOO 26528    0      GRB 230506B Epoch2 2023:152:19:49:46.204  28.0 ACIS-S NONE 327.0107  44.4912 114.04  82.91  88.43 dss pspc rass
201625 CCT 27872    0    2RXS J171610.5-10534 2023:153:04:10:16.789  20.0 ACIS-S NONE 259.0736 -10.9027 141.89 165.59  82.54 dss pspc rass
402386 TOO 27880    0      GRB 230506B Epoch2 2023:153:10:17:27.203  28.0 ACIS-S NONE 327.0114  44.4911 114.51  83.27  82.53 dss pspc rass
201624 CCT 27871    0    2RXS J165005.0-12231 2023:153:18:39:19.038  19.5 ACIS-S NONE 252.5507 -12.3894 154.01 169.99  88.64 dss pspc rass
901445     27877    1             JWST-DTDF-1 2023:154:00:37:46.644  16.0 ACIS-I NONE 260.7552  65.8302 170.43  91.64  80.82 dss pspc rass
 ----      44465               CAL-ER (IAT01) 2023:154:05:34:39.499   0.9   --    --  226.7500   5.5000 208.00 143.75  66.21   
801972     25821    0              Abell 2029 2023:154:05:59:01.812  28.7 ACIS-I NONE 227.7470   5.7642 208.00 144.15   1.03 dss pspc rass
 ----      44464               CAL-ER (CTI03) 2023:154:14:13:14.965   1.0   --    --  226.7500   5.5000 208.00 143.48   1.03   
 ----      44463               CAL-ER (PER10) 2023:154:15:30:00.000   1.0   --    --  238.0000 -37.0000 318.95 161.47 113.59   
 ----      44462               CAL-ER (CAL01) 2023:154:16:43:00.000   1.0   --    --  104.0000 -34.0000 213.88  64.42  97.11   
 ----      44461               CAL-ER (PER11) 2023:154:17:07:00.000   1.0   --    --  104.0000 -34.0000 213.86  64.42   0.02   
 ----      44460               CAL-ER (CAL01) 2023:154:17:46:00.000   1.0   --    --  104.0000 -34.0000 213.84  64.41   0.02   
 ----      44459               CAL-ER (PER12) 2023:154:18:50:00.000   3.0   --    --  157.4000  59.5000 260.00  69.04 116.76   
 ----      44458               CAL-ER (PER13) 2023:154:20:30:00.000   1.0   --    --  242.0000 -12.0000 219.30 166.45  97.85   
704809 TOO 27861    0    SDSS J141645.57+5344 2023:154:21:58:57.055  25.0 ACIS-S NONE 214.2163  53.7697 214.24  97.47  71.69 dss pspc rass
704384     25340    0    SDSSJ120447.15+33093 2023:155:05:17:48.867   4.0 ACIS-S NONE 181.1993  33.1858 240.77  92.95  31.25 dss pspc rass
802112 CCT 27875    0    RMJ154632.7+010443.4 2023:155:06:53:44.346  30.0 ACIS-I NONE 236.6296   1.0890 211.20 152.36  61.91 dss pspc rass
201569     26962    1                  XI BOO 2023:155:15:56:09.346   5.0  HRC-I NONE 222.8587  19.1195 215.88 129.64  22.63 dss pspc rass
291653     25565    2                    HZ43 2023:155:17:39:43.934   2.0  HRC-I LETG 199.0955  29.1195 230.79 107.47  24.34 dss pspc rass
704809 TOO 27881    0    SDSS J141645.57+5344 2023:155:18:35:59.534  20.0 ACIS-S NONE 214.2143  53.7684 214.99  97.10  27.55 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 06/02/23



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