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.

There is a link to previous weeks' short-term schedules at the bottom of this page.

OCT2125A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
705305     31933    0               [vD2023]1 2025:294:20:08:04.815  10.0 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506  26.00 156.12 106.02 dss pspc rass
503701 DDT 31951    2              GRB251016A 2025:294:23:37:17.202  10.0 ACIS-S NONE             S2,S3 266.3028 -39.5601 250.00  59.94 121.68 dss pspc rass
705305     31934    0               [vD2023]1 2025:295:03:06:29.587  10.0 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506  26.00 156.20 121.68 dss pspc rass
503701 DDT 31953    2              GRB251016A 2025:295:06:35:41.972  10.0 ACIS-S NONE             S2,S3 266.3028 -39.5601 250.00  59.67 121.68 dss pspc rass
 ----      42018               CAL-ER (IAT02) 2025:295:09:48:15.701   0.0   --    --                      1.1358 -44.3023 330.64 119.89  67.03   
705402     31683    0    SDSS J014837.63+0600 2025:295:10:19:04.482  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056  20.00 174.86  67.33 dss pspc rass
201896 CCT 31926    0               V* CE Ant 2025:295:13:50:10.718   5.0 ACIS-S NONE             S2,S3 160.6248 -33.6713 106.84  47.85 130.22 dss pspc rass
601635     30147    0                 NGC1546 2025:295:15:43:50.207  31.4 ACIS-S NONE       I3,S2,S3,S4  63.6518 -56.0609  37.53 106.17  66.71 dss pspc rass
 ----      42017               CAL-ER (PER05) 2025:296:00:59:31.652   3.0   --    --                     30.4489   8.4611  46.07 175.88  73.84   
 ----      42016               CAL-ER (PER06) 2025:296:07:00:00.000   3.0   --    --                     85.6457 -59.5880  56.58  95.34  82.87   
 ----      42015               CAL-ER (PER07) 2025:296:08:12:49.320   3.0   --    --                     77.9432 -27.1745  58.45 117.90  33.64   
 ----      42014               CAL-ER (PER08) 2025:296:11:00:00.000   3.0   --    --                    150.5000  -5.3000  79.77  56.99  72.11   
 ----      42013               CAL-ER (PER09) 2025:296:12:32:09.276   3.0   --    --                     32.6476   8.8853  60.42 174.66 119.95   
201818     30519    4                   WR 11 2025:296:14:21:34.515  20.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 122.3831 -47.3366  85.33  78.58  97.34 dss pspc rass
 ----      42012               CAL-ER (IAT03) 2025:296:20:23:47.938   0.0   --    --                    354.0000 -42.0000 321.47 117.85  80.51   
802205     30411    0       MACS J0018.5+1626 2025:296:20:58:23.800  10.0 ACIS-I NONE       I0,I1,I2,I3   4.6388  16.4433 261.16 156.62  84.36 dss pspc rass
503554     31002    0          PSR J1813-1246 2025:297:00:21:39.653  14.0 ACIS-I NONE       I0,I1,I2,I3 273.3490 -12.7668 271.00  63.34  94.94 dss pspc rass
802237     30539    0    1RXS J021649.0+70355 2025:297:04:55:29.176  30.0 ACIS-I NONE       I0,I1,I2,I3  34.2042  70.5978 185.96 121.03 112.46 dss pspc rass
201810     30086    0           TV Cassiopeia 2025:297:13:46:14.340  30.0 ACIS-S HETG       S1,S2,S3,S4   4.8281  59.1390 211.02 129.42  16.72 dss pspc rass
705503 CCT 31952    0    2MASX J20043345-1113 2025:297:22:42:22.066  10.0 ACIS-S NONE             S2,S3 301.1394 -11.2311 282.14  89.51  92.83 dss pspc rass
705402     31937    0    SDSS J014837.63+0600 2025:298:02:05:43.173  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 330.00 173.57  95.33 dss pspc rass
601672     29862    0              AM0126-525 2025:298:05:21:46.828  37.7 ACIS-S NONE       I3,S2,S3,S4  22.1054 -52.6358 349.97 114.96  62.52 dss pspc rass
 ----      42011               CAL-ER (PER10) 2025:298:16:20:36.491   3.0   --    --                     30.9395   8.2226  13.73 175.88  64.17   
 ----      42010               CAL-ER (PER11) 2025:298:23:00:00.000   3.0   --    --                    343.2184 -44.6733 310.94 108.90  80.21   
 ----      42009               CAL-ER (PER12) 2025:299:01:55:00.000   0.9   --    --                     30.9395   8.2226   7.78 175.82  77.42   
 ----      42008               CAL-ER (PER13) 2025:299:02:54:27.240   3.0   --    --                    166.2000 -47.0000 118.25  50.63 127.22   
 ----      42007               CAL-ER (PER14) 2025:299:04:32:05.061   0.9   --    --                    256.3285   3.7973 290.31  48.37 144.59   
802205     31935    0       MACS J0018.5+1626 2025:299:06:22:05.286  10.0 ACIS-I NONE       I0,I1,I2,I3   4.6388  16.4433 264.35 154.62 106.37 dss pspc rass
705501 CCT 31923    0    2MASXiJ1802473-14545 2025:299:09:46:04.551  10.0 ACIS-S NONE          S2,S3,S4 270.6974 -14.9152 275.66  58.20  98.19 dss pspc rass
802205     31936    0       MACS J0018.5+1626 2025:299:13:10:03.464  10.0 ACIS-I NONE       I0,I1,I2,I3   4.6388  16.4433 264.72 154.39  98.17 dss pspc rass
201897 CCT 31927    0     HEP G355.212-00.921 2025:299:16:36:18.238  10.0 ACIS-I NONE       I0,I1,I2,I3 264.3604 -33.4878 259.97  52.74 108.36 dss pspc rass
705402     31938    0    SDSS J014837.63+0600 2025:299:20:05:28.282  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 330.12 172.31 121.50 dss pspc rass


OCT2025A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
 ----      42023               CAL-ER (IAT01) 2025:292:22:39:14.030   0.9   --    --                     61.0148 -38.8639  42.72 120.29 161.50   
705305     30233    0               [vD2023]1 2025:292:23:18:23.778  10.0 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506  40.75 155.56  36.25 dss pspc rass
601733 CCT 31925    0          ESO 567- G 048 2025:293:02:45:09.986  10.0 ACIS-I NONE       I0,I1,I2,I3 154.9236 -17.7499  91.84  48.67 110.72 dss pspc rass
705305     31931    0               [vD2023]1 2025:293:06:11:56.852   9.7 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506  40.10 155.66 110.77 dss pspc rass
 ----      42022               CAL-ER (PER01) 2025:293:09:17:08.419   3.0   --    --                     30.4489   8.4611  70.34 174.21  35.88   
 ----      42021               CAL-ER (PER02) 2025:293:15:00:00.000   3.0   --    --                     56.0127  38.9448 127.69 140.40  76.95   
 ----      42020               CAL-ER (PER03) 2025:293:18:15:00.000   3.0   --    --                    150.5000  -5.3000  80.88  54.47  97.16   
 ----      42019               CAL-ER (PER04) 2025:293:21:00:00.000   0.9   --    --                     32.6476   8.8853  76.28 172.67 118.58   
201817     30518    4                   WR 11 2025:293:22:58:05.632  20.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 122.3831 -47.3366  87.81  77.56  99.64 dss pspc rass
705305     31932    0               [vD2023]1 2025:294:05:04:21.211  10.0 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506  42.00 155.96  78.42 dss pspc rass
601643     29648    0                 NGC3137 2025:294:08:29:45.756  12.4 ACIS-S NONE       I3,S2,S3,S4 152.2809 -29.0642  97.01  53.07 104.59 dss pspc rass
705305     30236    0               [vD2023]1 2025:294:12:35:12.942  10.5 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506  37.11 156.03 104.79 dss pspc rass
601643     31928    0                 NGC3137 2025:294:16:09:01.259  12.0 ACIS-S NONE       I3,S2,S3,S4 152.2809 -29.0642  98.39  53.26 104.87 dss pspc rass
705305     31933    0               [vD2023]1 2025:294:20:07:50.238  10.0 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506  36.38 156.12 104.92 dss pspc rass
601643     31929    0                 NGC3137 2025:294:23:33:18.955  12.0 ACIS-S NONE       I3,S2,S3,S4 152.2809 -29.0642  98.11  53.46 104.90 dss pspc rass
705305     31934    0               [vD2023]1 2025:295:03:32:08.355  10.0 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506  35.66 156.20 104.96 dss pspc rass
601643     31930    0                 NGC3137 2025:295:06:57:39.780  12.0 ACIS-S NONE       I3,S2,S3,S4 152.2809 -29.0642 100.01  53.66 105.11 dss pspc rass
705402     31683    0    SDSS J014837.63+0600 2025:295:11:01:15.629  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056  20.00 174.85 126.44 dss pspc rass
201896 CCT 31926    0               V* CE Ant 2025:295:14:32:21.820   5.0 ACIS-S NONE             S2,S3 160.6248 -33.6713 106.81  47.86 130.21 dss pspc rass
601635     30147    0                 NGC1546 2025:295:16:26:01.312  28.9 ACIS-S NONE       I3,S2,S3,S4  63.6518 -56.0609  37.50 106.17  66.71 dss pspc rass
 ----      42018               CAL-ER (CAL01) 2025:296:00:59:31.782   3.0   --    --                     30.4489   8.4611  46.08 175.88  73.85   
 ----      42017               CAL-ER (PER05) 2025:296:07:00:00.000   3.0   --    --                     85.6457 -20.1700  66.31 114.84  62.78   
 ----      42016               CAL-ER (PER06) 2025:296:08:05:26.608   3.0   --    --                     77.9432 -27.1745  58.46 117.89  11.01   
 ----      42015               CAL-ER (CAL01) 2025:296:11:00:00.000   3.0   --    --                    150.5000  -5.3000  79.77  56.99  72.11   
 ----      42014               CAL-ER (CAL01) 2025:296:12:32:09.275   0.9   --    --                     32.6476   8.8853  60.42 174.66 119.95   
201818     30519    4                   WR 11 2025:296:14:21:34.515  18.5 ACIS-S HETG S0,S1,S2,S3,S4,S5 122.3831 -47.3366  85.33  78.58  97.34 dss pspc rass
705402     31946    0    SDSS J014837.63+0600 2025:296:20:08:23.390   9.6 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056   0.00 174.28 103.42 dss pspc rass
300557 TOO 31939    2               V1935 Cen 2025:296:23:32:00.451  10.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 219.3408 -58.7948 194.68  47.84 126.53 dss pspc rass
705402     31947    0    SDSS J014837.63+0600 2025:297:03:02:16.081   9.6 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 347.20 174.13 126.42 dss pspc rass
300557 TOO 31940    2               V1935 Cen 2025:297:06:25:51.636  10.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 219.3408 -58.7948 194.36  47.71 126.42 dss pspc rass
705402     31948    0    SDSS J014837.63+0600 2025:297:09:56:07.869   9.6 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 344.99 173.97 126.47 dss pspc rass
300557 TOO 31941    2               V1935 Cen 2025:297:13:19:43.987  10.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 219.3408 -58.7948 194.03  47.57 126.46 dss pspc rass
705402     31949    0    SDSS J014837.63+0600 2025:297:16:50:00.986   9.6 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 342.87 173.80 126.53 dss pspc rass
300557 TOO 31942    2               V1935 Cen 2025:297:20:13:37.832  10.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 219.3408 -58.7948 193.69  47.44 126.51 dss pspc rass
705402     31937    0    SDSS J014837.63+0600 2025:297:23:44:05.418   9.6 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 330.00 173.63 127.32 dss pspc rass
300557 TOO 29799    2               V1935 Cen 2025:298:03:07:52.595  10.6 ACIS-S HETG S0,S1,S2,S3,S4,S5 219.3408 -58.7948 193.35  47.32 127.29 dss pspc rass
705402     31950    0    SDSS J014837.63+0600 2025:298:06:48:11.551  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 338.81 173.44 126.67 dss pspc rass
300557 TOO 31943    2               V1935 Cen 2025:298:10:18:29.922  19.9 ACIS-S HETG S0,S1,S2,S3,S4,S5 219.3408 -58.7948 192.45  47.19 126.63 dss pspc rass
 ----      42013               CAL-ER (CAL01) 2025:298:16:35:09.895   3.0   --    --                     30.9395   8.2226  13.59 175.88 129.68   
 ----      42012               CAL-ER (PER07) 2025:298:23:00:00.000   3.0   --    --                    343.2184 -44.6733 310.94 108.90  80.14   
 ----      42011               CAL-ER (CAL01) 2025:299:01:55:00.000   0.9   --    --                     30.9395   8.2226   7.78 175.82  77.42   
 ----      42010               CAL-ER (CAL01) 2025:299:02:54:27.236   3.0   --    --                    166.2000 -47.0000 118.25  50.63 127.22   
 ----      42009               CAL-ER (PER08) 2025:299:04:32:05.063   0.9   --    --                    256.3285   3.7973 290.31  48.37 144.59   
802205     31935    0       MACS J0018.5+1626 2025:299:06:22:05.286  10.0 ACIS-I NONE       I0,I1,I2,I3   4.6388  16.4433 264.33 154.61 106.36 dss pspc rass
705501 CCT 31923    0    2MASXiJ1802473-14545 2025:299:09:46:04.570  10.0 ACIS-S NONE          S2,S3,S4 270.6974 -14.9152 275.66  58.19  98.20 dss pspc rass
802205     31936    0       MACS J0018.5+1626 2025:299:13:10:03.503  10.0 ACIS-I NONE       I0,I1,I2,I3   4.6388  16.4433 264.70 154.39  98.17 dss pspc rass
201897 CCT 31927    0     HEP G355.212-00.921 2025:299:16:36:18.304  10.0 ACIS-I NONE       I0,I1,I2,I3 264.3604 -33.4878 259.97  52.74 108.36 dss pspc rass
705402     31938    0    SDSS J014837.63+0600 2025:299:20:05:28.292  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 330.08 172.31 121.50 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 10/20/25



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