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.

MAR0424A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ -------------
503383     26623    0         RX J1412.9+7922 2024:064:02:32:36.277  14.5  HRC-I NONE 213.3363  79.3261 130.22 103.46  46.82 dss pspc rass
704958     28563    0    PSO J170.8326+20.208 2024:064:07:03:45.057  15.7 ACIS-S NONE 170.8566  20.2077 157.41 165.10  62.91 dss pspc rass
 ----      43647               CAL-ER (CAL01) 2024:064:12:06:13.641   1.0   --    --  315.0000  40.0000  38.32  54.07 111.19   
 ----      43646               CAL-ER (PER02) 2024:064:12:57:36.585   1.0   --    --   41.8710  25.3340 291.91  63.31  86.47   
 ----      43645               CAL-ER (PER03) 2024:064:13:53:40.033   3.0   --    --  157.2800  10.8100 241.06 170.76 107.51   
 ----      43644               CAL-ER (PER01) 2024:064:16:25:00.000   0.9   --    --   70.0000  50.0000 278.18  91.24  81.51   
 ----      43643               CAL-ER (CAL01) 2024:064:17:18:00.000   1.5   --    --   70.0000  50.0000 278.20  91.20   0.01   
 ----      43642               CAL-ER (CAL01) 2024:064:18:12:00.000   2.0   --    --   70.0000  50.0000 278.22  91.17   0.02   
 ----      43641               CAL-ER (PER04) 2024:064:19:20:29.885   1.5   --    --  163.4810  11.6593 201.09 174.11  84.74   
 ----      43640               CAL-ER (PER05) 2024:064:20:27:03.765   1.0   --    --   27.8079  36.0178 307.93  57.77 117.29   
 ----      43639               CAL-ER (PER07) 2024:064:21:23:34.780   1.0   --    --   27.4200 -50.5590 232.64  56.36 109.58   
503513 DDT 29317    0             GRB 240218A 2024:064:23:23:54.575  20.0 ACIS-S NONE 161.7715   1.2794 332.00 173.73 117.51 dss pspc rass
 ----      43638               CAL-ER (IAT02) 2024:065:05:27:35.739   0.9   --    --  111.0000 -49.0000 301.48 107.15  66.84   
503400 TOO 26640    1              SN 2023ozo 2024:065:06:25:42.471  25.6 ACIS-S NONE 244.7786  -1.9346  83.50 101.01 121.18 dss pspc rass
704640     27123    0    PSO J172.3556+18.773 2024:065:14:06:04.087  15.0 ACIS-S NONE 172.3836  18.7647 139.99 165.85  84.50 dss pspc rass
503383     29305    0         RX J1412.9+7922 2024:065:18:58:29.087  14.6  HRC-I NONE 213.3632  79.3246 131.88 103.04  68.70 dss pspc rass
704640     27126    0    PSO J172.3556+18.773 2024:065:23:32:21.109  15.0 ACIS-S NONE 172.3838  18.7662 142.99 165.85  67.65 dss pspc rass
503400 TOO 29306    1              SN 2023ozo 2024:066:04:16:54.101  25.5 ACIS-S NONE 244.7785  -1.9337  83.81 101.88  85.72 dss pspc rass
705089 P1  28280    0    SDSS J162549.66+4806 2024:066:11:48:58.373   3.8 ACIS-S NONE 246.4769  48.0767  97.99 101.28  52.07 dss pspc rass
704640     29310    0    PSO J172.3556+18.773 2024:066:13:22:23.550  18.0 ACIS-S NONE 172.3825  18.7664 143.00 165.83  65.64 dss pspc rass
402449     27356    1                  SS 433 2024:066:19:03:11.604  10.1 ACIS-S HETG 287.9636   4.9569  83.50  60.33 113.85 dss pspc rass
 ----      43637               CAL-ER (IAT01) 2024:066:22:09:51.262   0.0   --    --  260.6411  24.9435  83.86  89.51  33.67   
704640     29309    0    PSO J172.3556+18.773 2024:066:22:44:03.533  15.0 ACIS-S NONE 172.3834  18.7663 143.00 165.80  82.60 dss pspc rass
 ----      43636               CAL-ER (PER10) 2024:067:03:46:43.882   0.9   --    --  157.3300  -4.1340 311.82 165.95 167.22   
 ----      43635               CAL-ER (PER13) 2024:067:04:37:50.924   3.0   --    --   64.0000 -42.0000 264.60  76.23  89.70   
 ----      43634               CAL-ER (CAL01) 2024:067:06:03:16.980   0.9   --    --  157.3300  -4.1340 311.47 165.91  89.70   
 ----      43633               CAL-ER (PER09) 2024:067:06:54:55.258   3.0   --    --   61.0000 -41.0000 262.72  73.86  92.05   
 ----      43632               CAL-ER (CAL01) 2024:067:08:45:00.000   1.5   --    --   61.0000 -41.0000 262.65  73.83   0.07   
 ----      43631               CAL-ER (CAL01) 2024:067:09:40:00.000   2.1   --    --   61.0000 -41.0000 262.61  73.81   0.04   
 ----      43630               CAL-ER (PER11) 2024:067:11:41:00.000   2.5   --    --  166.6400   2.1530 333.88 176.69 104.66   
402408     27068    0       LMC Deep Field 02 2024:067:13:30:41.666  18.7 ACIS-I NONE  85.0268 -69.5325 273.96  87.61  89.10 dss pspc rass
705169 CCT 29302    0    SDSSJ110745.17+02005 2024:067:19:17:39.416  11.0 ACIS-S NONE 166.9103   2.0188 333.42 176.65  89.08 dss pspc rass
402408     29307    0       LMC Deep Field 02 2024:067:22:56:17.461  21.3 ACIS-I NONE  85.0261 -69.5329 274.96  87.61  89.10 dss pspc rass
601628 CCT 29304    0               UGC 06145 2024:068:05:25:44.393  10.0 ACIS-I NONE 166.3733  -1.8692 340.06 172.84  85.27 dss pspc rass
402408     29308    0       LMC Deep Field 02 2024:068:08:46:51.322  20.0 ACIS-I NONE  85.0267 -69.5332 274.96  87.62  85.27 dss pspc rass
601627 CCT 29303    0               UGC 05797 2024:068:14:56:04.213  10.0 ACIS-I NONE 159.8366   1.7295 293.00 170.20  92.62 dss pspc rass
201730 DDT 29278    2                 HR 1099 2024:068:18:22:03.890  10.5 ACIS-S HETG  54.1850   0.6127 274.00  65.01 107.23 dss pspc rass
704652     27714    0    [APH2018] SDSS J1020 2024:068:21:55:01.864  13.5 ACIS-I NONE 155.0350  10.6899 247.97 164.47 101.10 dss pspc rass
201730 DDT 29315    2                 HR 1099 2024:069:02:18:06.184  10.0 ACIS-S HETG  54.1828   0.6121 278.50  64.70 101.57 dss pspc rass
704652     29312    0    [APH2018] SDSS J1020 2024:069:05:42:50.511  11.5 ACIS-I NONE 155.0350  10.6905 247.97 164.15 101.57 dss pspc rass
201730 DDT 29316    2                 HR 1099 2024:069:09:32:35.662   9.5 ACIS-S HETG  54.1823   0.6124 279.00  64.43 101.64 dss pspc rass
705108     28299    1    SDSS J093844.46+0057 2024:069:12:46:33.178  11.2 ACIS-S NONE 144.6731   0.9804 273.00 154.47  90.56 dss pspc rass
705056 P1  28247    0    SDSS J153500.11+4648 2024:069:16:41:27.857   6.3 ACIS-S NONE 233.7714  46.7898  97.98 110.95 143.60 dss pspc rass
 ----      43629               CAL-ER (CAL01) 2024:069:18:57:31.345   2.0   --    --  171.7246  15.9362 172.72 168.20  69.96   
 ----      43628               CAL-ER (PER12) 2024:069:20:04:31.315   1.0   --    --   88.9008  50.9147 265.95  98.70  81.75   
 ----      43627               CAL-ER (CAL01) 2024:069:20:53:54.896   3.0   --    --  162.5540   7.3710 248.00 171.66  77.52   
 ----      43626               CAL-ER (CAL01) 2024:069:23:00:00.000   2.0   --    --   66.0000  50.0000 283.74  84.04  91.14   
 ----      43625               CAL-ER (CAL01) 2024:070:00:11:00.000   1.5   --    --   66.0000  50.0000 283.76  84.00   0.02   
 ----      43624               CAL-ER (CAL01) 2024:070:01:06:00.000   2.0   --    --   66.0000  50.0000 283.78  83.97   0.02   
705108     29313    1    SDSS J093844.46+0057 2024:070:05:20:22.919  11.2 ACIS-S NONE 144.6709   0.9783 279.00 153.88  88.80 dss pspc rass
402412     27975    0       LMC Deep Field 06 2024:070:09:02:31.992  13.0 ACIS-I NONE  83.1754 -67.0163 270.97  87.25  86.18 dss pspc rass
 ----      43623               CAL-ER (CAL01) 2024:070:13:14:00.506   0.9   --    --  167.4010  -1.2300 325.54 173.73  86.89   
802130 P1  28315    0       PSZ2G261.88+62.85 2024:070:14:17:50.719   7.5 ACIS-I NONE 175.3538   5.6984 112.02 175.31 146.94 dss pspc rass
402449     29311    1                  SS 433 2024:070:17:02:42.961  10.0 ACIS-S HETG 287.9637   4.9562  83.18  63.69 112.37 dss pspc rass
201561     27041    0                NGC 6242 2024:070:20:19:30.561  10.0 ACIS-I NONE 253.8897 -39.4934  79.01  93.21  54.84 dss pspc rass


FEB2624A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ -------------
 ----      43666               CAL-ER (PER01) 2024:056:16:21:12.286   1.0   --    --  147.1000  25.0000 200.00 161.14 102.17   
 ----      43665               CAL-ER (PER02) 2024:056:17:30:00.000   1.0   --    --   16.0000  28.0000 309.84  52.28 110.47   
 ----      43664               CAL-ER (PER03) 2024:056:18:25:00.000   1.0   --    --   75.0000  53.0000 270.06 101.50  49.58   
 ----      43663               CAL-ER (PER08) 2024:056:18:56:00.000   2.0   --    --   75.0000  53.0000 270.07 101.48   0.01   
 ----      43662               CAL-ER (CAL01) 2024:056:19:52:00.000   1.0   --    --   75.0000  53.0000 270.09 101.45   0.02   
 ----      43661               CAL-ER (CTI01) 2024:056:23:05:00.000   1.0   --    --  158.0000  12.0000 185.21 177.13  81.43   
 ----      43660               CAL-ER (PER04) 2024:057:00:30:00.000   2.0   --    --  162.3500  12.0700 126.32 175.06  58.12   
802047     27207    0        zwcl 1856.8+6616 2024:057:02:05:29.515  17.0 ACIS-I NONE 284.1401  66.4235  53.55  85.08  94.89 dss pspc rass
802062     26948    0      A1367 orphan cloud 2024:057:07:22:26.430  13.0 ACIS-S NONE 176.1138  20.1865 120.90 159.74  81.52 dss pspc rass
802047     29293    0        zwcl 1856.8+6616 2024:057:11:32:44.696  14.0 ACIS-I NONE 284.1396  66.4239  53.95  85.08  81.62 dss pspc rass
802062     29289    0      A1367 orphan cloud 2024:057:15:59:40.046  13.0 ACIS-S NONE 176.1133  20.1871 121.78 159.95  81.40 dss pspc rass
503410     26650    0    eRASSU J 134725.5-36 2024:057:20:18:45.046   5.0  HRC-I NONE 206.8527 -36.5915  54.61 116.24  93.41 dss pspc rass
402507     28766    1            PSR B1259-63 2024:057:22:03:46.970  15.0 ACIS-I NONE 195.6857 -63.8551  36.97 102.28  29.41 dss pspc rass
704972 TOO 28163    0    SDSS J095902.76+0219 2024:058:02:49:45.823  12.0 ACIS-S NONE 149.7391   2.3311 309.00 168.47  92.16 dss pspc rass
402507     29300    1            PSR B1259-63 2024:058:06:45:42.541  17.0 ACIS-I NONE 195.6859 -63.8547  36.68 102.50  92.00 dss pspc rass
704856     27377    1           MCG -6 -30-15 2024:058:11:57:13.141  59.6 ACIS-S HETG 203.9661 -34.3187  52.84 120.06  31.47 dss pspc rass
 ----      43659               CAL-ER (CTI02) 2024:059:04:58:35.627   3.0   --    --  163.5000   3.4000  32.19 174.20  54.24   
 ----      43658               CAL-ER (PER05) 2024:059:07:10:00.000   1.0   --    --    8.8000 -84.7000 208.81  77.08 101.79   
 ----      43657               CAL-ER (PER06) 2024:059:09:00:00.000   3.0   --    --   76.0000  49.0000 271.32  99.78 136.82   
 ----      43656               CAL-ER (PER09) 2024:059:10:23:00.000   2.0   --    --   76.0000  49.0000 271.34  99.73   0.02   
 ----      43655               CAL-ER (CAL01) 2024:059:11:20:00.000   1.0   --    --   76.0000  49.0000 271.36  99.69   0.02   
 ----      43654               CAL-ER (PER07) 2024:059:12:50:00.000   3.0   --    --  155.1000  11.3000 240.87 173.67  75.98   
704849     27370    1                Mrk 1018 2024:059:16:37:31.501  11.7 ACIS-S HETG  31.5542  -0.2712 280.23  51.13 123.73 dss pspc rass
704652     27138    0    [APH2018] SDSS J1020 2024:059:20:35:26.570  10.0 ACIS-I NONE 155.0356  10.6872 246.53 173.55 123.38 dss pspc rass
704849     29295    1                Mrk 1018 2024:060:00:05:01.566  11.3 ACIS-S HETG  31.5527  -0.2690 280.14  50.82 123.37 dss pspc rass
704652     29290    0    [APH2018] SDSS J1020 2024:060:03:56:16.385  10.0 ACIS-I NONE 155.0355  10.6898 246.71 173.24 123.36 dss pspc rass
704849     29296    1                Mrk 1018 2024:060:07:25:51.126  11.0 ACIS-S HETG  31.5514  -0.2670 280.04  50.51 123.36 dss pspc rass
704652     29291    0    [APH2018] SDSS J1020 2024:060:11:12:05.749  10.0 ACIS-I NONE 155.0354  10.6919 246.84 172.93 123.35 dss pspc rass
704849     29297    1                Mrk 1018 2024:060:14:41:40.289  11.0 ACIS-S HETG  31.5503  -0.2654 279.94  50.22 123.34 dss pspc rass
705096 P1  28287    0    SDSS J103005.10+1325 2024:060:18:28:36.856  17.0 ACIS-S NONE 157.5323  13.4551 228.00 172.86 126.49 dss pspc rass
704849     29298    1                Mrk 1018 2024:060:23:55:33.206  10.0 ACIS-S HETG  31.5492  -0.2637 279.80  49.85 126.48 dss pspc rass
705019 P1  28210    0    WISEA J081828.41-261 2024:061:03:18:17.976  10.0 ACIS-S NONE 124.5860 -26.2070 307.55 130.24  92.61 dss pspc rass
402507     29301    1            PSR B1259-63 2024:061:06:35:13.644  20.0 ACIS-I NONE 195.6796 -63.8602  36.98 104.31  66.43 dss pspc rass
704856     27428    1           MCG -6 -30-15 2024:061:12:36:44.244  27.7 ACIS-S HETG 203.9673 -34.3244  57.00 122.77  32.82 dss pspc rass
 ----      43653               CAL-ER (CAL01) 2024:061:20:49:06.794   3.0   --    --  163.3000   3.3000   6.01 175.98  65.47   
 ----      43652               CAL-ER (CAL01) 2024:061:22:45:00.000   2.0   --    --    4.0000 -85.0000 201.36  78.08  98.18   
 ----      43651               CAL-ER (CAL01) 2024:062:00:30:00.000   3.0   --    --   78.0000  52.0000 270.55  98.76 140.49   
 ----      43650               CAL-ER (PER10) 2024:062:01:50:00.000   2.0   --    --   78.0000  52.0000 270.57  98.71   0.02   
 ----      43649               CAL-ER (CAL01) 2024:062:02:47:00.000   1.0   --    --   78.0000  52.0000 270.59  98.67   0.02   
 ----      43648               CAL-ER (CAL01) 2024:062:05:30:00.000   2.0   --    --  162.4000  11.9000 189.68 175.18  81.04   
802047     27208    0        zwcl 1856.8+6616 2024:062:06:58:58.248  14.0 ACIS-I NONE 284.1421  66.4253  53.01  84.85  95.49 dss pspc rass
705168 CCT 29287    0    SDSSJ105607.80+13444 2024:062:11:27:52.734  14.7 ACIS-S NONE 164.0578  13.7527 174.93 173.29  90.34 dss pspc rass
802047     29294    0        zwcl 1856.8+6616 2024:062:16:08:19.041  14.0 ACIS-I NONE 284.1340  66.4244  57.01  84.86  89.72 dss pspc rass
704705     27155    0         SDSS J0921+2854 2024:062:20:36:40.935  14.0 ACIS-S NONE 140.3241  28.9375 229.78 148.77  87.89 dss pspc rass
704968 P1  28159    0                UGC 3386 2024:063:00:56:21.814  14.0 ACIS-S NONE  90.6481  65.3972 257.62 103.13  48.78 dss pspc rass
704705     29292    0         SDSS J0921+2854 2024:063:05:16:03.579  14.0 ACIS-S NONE 140.3237  28.9367 230.09 148.44  48.85 dss pspc rass
201731 CCT 29288    0                G 192-12 2024:063:09:35:05.603  16.0 ACIS-S NONE  89.9723  58.5945 260.07 103.86  45.79 dss pspc rass
802093     27400    0    [ZCA2021] BOSS1244 N 2024:063:14:33:03.762  14.5 ACIS-I NONE 191.0775  36.0760 144.99 141.85  71.11 dss pspc rass
705088 P1  28279    0    SDSS J162259.36+4640 2024:063:18:59:54.277  12.1 ACIS-S NONE 245.7622  46.6535  93.99 100.91  43.44 dss pspc rass
802093     29299    0    [ZCA2021] BOSS1244 N 2024:063:22:46:51.277  11.0 ACIS-I NONE 191.0761  36.0730 134.60 141.92  41.59 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 03/01/24



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