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.

NOV0825A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
601645     31970    0                 NGC3511 2025:312:18:37:32.079  16.5 ACIS-S NONE       I3,S2,S3,S4 165.8490 -23.0866  85.39  54.49 120.46 dss pspc rass
601706     31980    0                NGC 1140 2025:312:23:53:44.415  10.8 ACIS-S NONE             S2,S3  43.6397 -10.0287  10.00 153.15 115.68 dss pspc rass
503702 DDT 31983    0              GRB251013C 2025:313:03:29:41.478  38.7 ACIS-S NONE             S2,S3 345.8356  -0.2103 289.69 120.11  92.03 dss pspc rass
705214     29926    0    SDSS J022226.11-0857 2025:313:14:45:26.002  12.6 ACIS-S NONE             S2,S3  35.6088  -8.9504 341.02 152.58  67.84 dss pspc rass
705505 CCT 31968    0    2MASS J17422050-5146 2025:313:18:53:36.279  10.0 ACIS-S NONE             S2,S3 265.5855 -51.7728 238.25  47.32 105.77 dss pspc rass
705402     31981    0    SDSS J014837.63+0600 2025:313:22:21:08.998  12.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 303.95 159.41 114.20 dss pspc rass
 ----      41970               CAL-ER (IAT02) 2025:314:02:26:12.066   0.9   --    --                     48.9007  31.7372 165.79 164.96 132.98   
705450 P1  31303    0    SDSS J103149.70+2325 2025:314:03:19:04.424  10.0 ACIS-S NONE             S2,S3 157.9571  23.4174  64.65  77.08  97.60 dss pspc rass
601634     29639    0                  IC1954 2025:314:06:47:24.980  20.6 ACIS-S NONE       I3,S2,S3,S4  52.8808 -51.9049   7.78 110.62 117.79 dss pspc rass
 ----      41969               CAL-ER (PER01) 2025:314:13:04:43.364   3.0   --    --                     47.8372  15.4226  50.72 177.16  79.52   
 ----      41968               CAL-ER (CAL01) 2025:314:14:38:59.218   5.0   --    --                    184.7978 -54.5910 123.79  48.68 129.44   
 ----      41967               CAL-ER (CAL01) 2025:314:16:46:32.507   3.0   --    --                     47.8372  15.4226  48.12 177.26 129.25   
 ----      41966               CAL-ER (CAL01) 2025:314:18:14:34.173   0.9   --    --                     48.2533  21.2685 149.24 175.35 101.38   
 ----      41965               CAL-ER (PER05) 2025:314:18:55:17.209   0.9   --    --                     41.4384  43.4796 189.37 153.52  42.81   
 ----      41964               CAL-ER (PER02) 2025:314:21:30:00.000   3.0   --    --                    238.4000  29.2000 343.89  48.03 105.70   
 ----      41963               CAL-ER (PER03) 2025:314:22:48:12.717   3.0   --    --                    193.7100  19.0924  43.07  48.29  57.20   
 ----      41962               CAL-ER (PER04) 2025:315:00:24:00.000   0.9   --    --                     48.2533  21.2685 151.71 175.56 127.70   
601647     30161    0                 NGC3626 2025:315:02:04:48.850  15.0 ACIS-S NONE       I3,S2,S3,S4 170.0158  18.3568  59.00  65.71 113.27 dss pspc rass
802196     29631    0         Perseus cluster 2025:315:06:52:54.787  12.0 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.5117 171.48 155.71 101.70 dss pspc rass
601647     30162    0                 NGC3626 2025:315:10:51:30.113  14.0 ACIS-S NONE       I3,S2,S3,S4 170.0158  18.3568  50.00  66.07 103.90 dss pspc rass
802196     31987    0         Perseus cluster 2025:315:15:23:09.889  10.0 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.5117 166.98 155.86 102.73 dss pspc rass
601647     31994    0                 NGC3626 2025:315:18:48:06.438  14.0 ACIS-S NONE       I3,S2,S3,S4 170.0158  18.3568  51.00  66.38 102.49 dss pspc rass
802196     31988    0         Perseus cluster 2025:315:23:19:42.990  10.0 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.5117 166.98 155.98 102.49 dss pspc rass
601647     31995    0                 NGC3626 2025:316:02:44:39.539  14.0 ACIS-S NONE       I3,S2,S3,S4 170.0158  18.3568  51.00  66.70 102.49 dss pspc rass
 ----      41961               CAL-ER (IAT04) 2025:316:07:04:20.188   0.0   --    --                    109.0000 -14.1000  64.21 111.34  69.05   
601730     31231    0    SDSS J031426.10-0108 2025:316:07:37:35.527  12.6 ACIS-S NONE             S2,S3  48.6088  -1.1463   3.69 161.07  78.33 dss pspc rass
 ----      41960               CAL-ER (CAL01) 2025:316:11:35:58.883   0.0   --    --                    109.0000 -14.1000  64.08 111.49  78.25   
705017     31488    0                NGC 4579 2025:316:12:10:41.743  14.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 189.4317  11.8181  51.00  47.84  84.89 dss pspc rass
802196     31989    0         Perseus cluster 2025:316:16:45:10.325  10.0 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.5117 166.98 156.22 115.39 dss pspc rass
802201     30377    0               Abell 795 2025:316:20:07:23.852  28.9 ACIS-S NONE       I3,S1,S2,S3 141.0221  14.1726  71.92  91.37  90.26 dss pspc rass
 ----      41959               CAL-ER (PER06) 2025:317:04:43:33.093   3.0   --    --                     50.4662  19.2637 121.72 177.50  87.29   
 ----      41958               CAL-ER (CAL01) 2025:317:06:01:57.825   0.9   --    --                     48.2533  21.2685 180.52 176.68  58.10   
 ----      41957               CAL-ER (CAL01) 2025:317:07:01:46.214   3.0   --    --                    238.4000  29.2000 347.10  48.15 128.80   
 ----      41956               CAL-ER (CAL01) 2025:317:08:35:52.633   0.9   --    --                     48.2533  21.2685 182.43 176.70 128.73   
 ----      41955               CAL-ER (CAL01) 2025:317:11:00:00.000   0.9   --    --                     41.4384  43.4796 195.40 153.82  24.69   
 ----      41954               CAL-ER (CAL01) 2025:317:13:40:00.000   0.9   --    --                    238.4000  29.2000 347.51  48.15 105.67   
 ----      41953               CAL-ER (CAL01) 2025:317:15:36:00.000   0.9   --    --                     48.2533  21.2685 188.02 176.76 128.61   
705279     30224    0                NGC 4051 2025:317:17:11:09.043  20.0 ACIS-S HETG             S2,S3 180.7900  44.5313  46.01  76.35 106.50 dss pspc rass
802196     31990    0         Perseus cluster 2025:317:23:18:35.332  10.0 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.5117 166.98 156.63  83.72 dss pspc rass
 ----      41952               CAL-ER (IAT03) 2025:318:02:27:30.362   0.0   --    --                     97.4548  36.8560 100.33 133.88  50.63   
705273     29985    0             MCG-5-23-16 2025:318:03:02:24.106  16.0 ACIS-S HETG                S3 146.9172 -30.9489  70.00  74.32  85.71 dss pspc rass
705224     29936    3                NGC 1358 2025:318:08:04:48.414  15.0 ACIS-S NONE    I2,I3,S2,S3,S4  53.4153  -5.0895  20.00 156.30  91.07 dss pspc rass
705273     31993    0             MCG-5-23-16 2025:318:12:50:32.723  16.0 ACIS-S HETG                S3 146.9172 -30.9489  70.00  74.61  91.07 dss pspc rass
705224     31992    3                NGC 1358 2025:318:17:52:57.032  15.0 ACIS-S NONE    I2,I3,S2,S3,S4  53.4153  -5.0895  20.00 156.25  91.07 dss pspc rass
601736 CCT 31986    0          ESO 320- G 014 2025:318:22:42:55.783  10.0 ACIS-I NONE       I0,I1,I2,I3 174.4718 -39.2203  96.92  51.99 110.16 dss pspc rass
601634     31991    0                  IC1954 2025:319:02:02:02.360  30.0 ACIS-S NONE       I3,S2,S3,S4  52.8808 -51.9049   2.75 109.59  76.24 dss pspc rass
705507 CCT 31985    0              NGC7172_s1 2025:319:10:51:17.109  11.0 ACIS-S NONE             S2,S3 330.3965 -31.8897 290.84  88.27  61.86 dss pspc rass
601730     31997    0    SDSS J031426.10-0108 2025:319:14:29:14.336  19.1 ACIS-S NONE             S2,S3  48.6088  -1.1463 354.12 160.17  86.04 dss pspc rass
 ----      41951               CAL-ER (CAL01) 2025:319:20:12:25.152   3.0   --    --                     47.8372  15.4226 317.61 175.64  40.07   
 ----      41950               CAL-ER (PER07) 2025:319:21:46:23.542   3.0   --    --                    277.5648 -47.4307 249.03  47.46 128.13   
 ----      41949               CAL-ER (PER09) 2025:319:23:21:38.786   3.0   --    --                    180.3776 -10.4472  74.34  49.60 133.89   
 ----      41948               CAL-ER (PER08) 2025:320:02:15:00.000   3.0   --    --                    122.8658  10.0706  73.70 110.46  60.77   
 ----      41947               CAL-ER (PER10) 2025:320:05:00:00.000   0.9   --    --                     53.6068  18.6387  87.92 177.86  67.46   
 ----      41946               CAL-ER (CAL01) 2025:320:06:01:12.154   0.9   --    --                     47.8372  15.4226 314.60 175.26 135.09   
 ----      41945               CAL-ER (CAL01) 2025:320:07:00:51.928   0.9   --    --                    277.5648 -47.4307 248.70  47.11 128.16   
503689     31211    0              SN 2018ivc 2025:320:08:26:51.039  20.0 ACIS-S NONE             S2,S3  40.6720  -0.0089 330.99 158.42 111.72 dss pspc rass
705506 CCT 31984    0               ESO231-26 2025:320:14:38:50.017  10.0 ACIS-S NONE             S2,S3 288.3114 -50.1829 256.22  54.40 104.17 dss pspc rass
503689     31996    0              SN 2018ivc 2025:320:18:04:08.695  17.0 ACIS-S NONE             S2,S3  40.6720  -0.0089 330.29 158.12 104.15 dss pspc rass


NOV0525A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
 ----      41979               CAL-ER (PER06) 2025:309:17:30:00.000   2.0   --    --                     48.0000  19.0000 113.62 172.38 125.59   
601644     29649    0                 NGC3239 2025:309:19:01:16.422  13.0 ACIS-S NONE       I3,S2,S3,S4 156.2703  17.1637  66.21  71.65 100.80 dss pspc rass
601735 DDT 31982    2              AT2025aarm 2025:309:23:13:50.132  25.0 ACIS-S NONE       I3,S2,S3,S4  68.0516  -5.3777  57.00 145.77  91.78 dss pspc rass
705314     31973    0    Center of COSMOS-Web 2025:310:06:44:15.593  14.0 ACIS-I NONE       I0,I1,I2,I3 149.9162   2.3085  62.00  72.78  82.16 dss pspc rass
802230     31978    0       PSZ2G144.99-24.64 2025:310:11:19:26.891  10.0 ACIS-I NONE       I0,I1,I2,I3  37.1891  34.0270 174.99 161.62 118.60 dss pspc rass
503611 P1  31133    0    1eRASS J085257.4+270 2025:310:14:40:41.375  15.0 ACIS-S NONE    I2,I3,S2,S3,S4 133.2400  27.0036  81.50  95.80  85.84 dss pspc rass
601706     30496    0                NGC 1140 2025:310:19:33:02.714  10.0 ACIS-S NONE             S2,S3  43.6397 -10.0287  12.00 153.73 120.85 dss pspc rass
300558     30099    0                  VV Pup 2025:310:22:53:56.635  28.0 ACIS-S HETG       S1,S2,S3,S4 123.7783 -19.0549  72.04  92.14  84.29 dss pspc rass
601706     31979    0                NGC 1140 2025:311:07:14:50.549  11.0 ACIS-S NONE             S2,S3  43.6397 -10.0287  12.00 153.62  84.29 dss pspc rass
601666     29671    0                  IC5273 2025:311:10:49:34.545  20.0 ACIS-S NONE       I3,S2,S3,S4 344.8613 -37.7029 303.56 103.60  71.55 dss pspc rass
705402     31680    0    SDSS J014837.63+0600 2025:311:16:51:40.792  16.2 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 305.63 161.58  59.72 dss pspc rass
 ----      41978               CAL-ER (CAL01) 2025:311:22:02:20.374   3.0   --    --                    274.0000 -37.0000 259.66  49.35 112.04   
 ----      41977               CAL-ER (PER08) 2025:312:00:00:00.000   1.0   --    --                     40.0000  15.0000 297.62 176.77 127.64   
 ----      41976               CAL-ER (PER09) 2025:312:01:15:00.000   1.0   --    --                    274.0000 -37.0000 259.59  49.22 127.64   
 ----      41975               CAL-ER (PER10) 2025:312:02:30:00.000   2.0   --    --                    230.2000  32.0000 350.95  48.98 116.99   
 ----      41974               CAL-ER (PER11) 2025:312:04:40:00.000   3.0   --    --                     19.0000  48.0000 220.53 142.80  95.29   
 ----      41973               CAL-ER (PER12) 2025:312:06:45:00.000   1.0   --    --                    223.7000  71.2000 359.61  87.76  60.77   
 ----      41972               CAL-ER (PER13) 2025:312:07:50:00.000   1.0   --    --                     43.1000  19.9000 183.99 176.67  88.96   
 ----      41971               CAL-ER (PER14) 2025:312:09:00:00.000   1.0   --    --                     47.3000  14.9000  65.23 175.87 117.62   
601645     29650    0                 NGC3511 2025:312:10:08:00.040  15.5 ACIS-S NONE       I3,S2,S3,S4 165.8490 -23.0866  85.65  54.21 121.81 dss pspc rass
705504 CCT 31967    0    1RXS J031639.0+15543 2025:312:15:08:35.989  10.0 ACIS-S NONE             S2,S3  49.1647  15.9097  80.63 174.63 120.45 dss pspc rass
601645     31970    0                 NGC3511 2025:312:18:37:32.079  16.5 ACIS-S NONE       I3,S2,S3,S4 165.8490 -23.0866  85.39  54.49 120.46 dss pspc rass
601706     31980    0                NGC 1140 2025:312:23:53:44.415  12.0 ACIS-S NONE             S2,S3  43.6397 -10.0287  10.00 153.15 115.68 dss pspc rass
601666     31971    0                  IC5273 2025:313:03:45:00.425  27.0 ACIS-S NONE       I3,S2,S3,S4 344.8613 -37.7029 302.70 102.08  70.95 dss pspc rass
705214     29926    0    SDSS J022226.11-0857 2025:313:11:42:59.390  23.0 ACIS-S NONE             S2,S3  35.6088  -8.9504 341.23 152.65  56.17 dss pspc rass
705505 CCT 31968    0    2MASS J17422050-5146 2025:313:18:45:19.746  10.0 ACIS-S NONE             S2,S3 265.5855 -51.7728 238.25  47.33 105.78 dss pspc rass
705402     31981    0    SDSS J014837.63+0600 2025:313:22:12:52.469  12.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 303.95 159.41 114.20 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 11/07/25



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