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.

JUN3025A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
890252     29622    2                   A1795 2025:181:01:01:28.948  20.0 ACIS-S NONE    I2,I3,S1,S2,S3 207.2196  26.5908 252.01  94.75 138.78 dss pspc rass
503561     30140    0            Kepler's SNR 2025:181:07:06:22.828  17.8 ACIS-S NONE          I3,S2,S3 262.6730 -21.4917 254.99 164.67  72.29 dss pspc rass
601703 P1  29893    0    NGVS J123020.05+1155 2025:181:12:36:31.203  20.0 ACIS-S NONE             S2,S3 187.5835  11.9219 247.65  83.71  80.88 dss pspc rass
901865     28137    0         IGR J18149-2247 2025:181:18:45:39.142   5.0 ACIS-S NONE             S2,S3 273.7400 -22.8000 265.48 174.54  91.35 dss pspc rass
 ----      42310               CAL-ER (IAT01) 2025:181:21:01:15.635   0.9   --    --                    288.5516 -25.2330  76.92 171.69 165.49   
 ----      42309               CAL-ER (IAT02) 2025:181:21:57:10.741   0.9   --    --                     42.6481  -1.2152 108.50  60.62 111.31   
705118     28845    0               Abell 370 2025:181:22:23:23.508  20.0 ACIS-I NONE       I0,I1,I2,I3  39.9604  -1.5856 108.00  63.19   2.73 dss pspc rass
802144     28688    0               A85 North 2025:182:04:18:55.323  20.1 ACIS-I NONE       I0,I1,I2,I3  10.4449  -9.1132 112.88  93.21  31.25 dss pspc rass
 ----      42308               CAL-ER (PER01) 2025:182:10:30:08.798   3.0   --    --                    283.8000 -20.2000 132.52 175.68  93.72   
 ----      42307               CAL-ER (PER02) 2025:182:15:15:00.000   0.9   --    --                    289.6000  19.5000 167.85 136.51  52.94   
 ----      42306               CAL-ER (CAL01) 2025:182:15:34:41.000   3.0   --    --                    289.6000  19.5000 167.87 136.51   0.02   
 ----      42305               CAL-ER (CAL01) 2025:182:16:33:11.000   0.9   --    --                    289.6000  19.5000 167.91 136.52   0.04   
 ----      42304               CAL-ER (PER03) 2025:182:17:25:16.779   3.0   --    --                    154.2503  58.1657 289.12  51.63  94.11   
503561     30986    0            Kepler's SNR 2025:182:21:12:12.907  11.0 ACIS-S NONE             S2,S3 262.6730 -21.4917 249.99 163.17 118.85 dss pspc rass
 ----      42303               CAL-ER (IAT03) 2025:183:00:42:11.131   0.0   --    --                    276.5475   6.8009 188.05 149.87  70.37   
201666     28745    1                  G29-38 2025:183:01:21:57.131  14.5  HRC-I NONE                   352.1985   5.2484 115.54 105.00  95.11 dss pspc rass
705118     30983    0               Abell 370 2025:183:05:49:50.589  10.0 ACIS-I NONE       I0,I1,I2,I3  39.9604  -1.5856 115.00  64.35  48.21 dss pspc rass
802144     30981    0               A85 North 2025:183:08:58:27.345  10.0 ACIS-I NONE       I0,I1,I2,I3  10.4449  -9.1132 112.62  94.30  30.32 dss pspc rass
201849 CCT 30979    0     HEP G016.392-09.915 2025:183:12:21:24.991  10.0 ACIS-I NONE       I0,I1,I2,I3 284.3988 -19.1531 134.01 175.27  93.57 dss pspc rass
704982     28173    0         SDSS J0100+2802 2025:183:15:46:09.276  34.9 ACIS-I NONE    I0,I1,I2,I3,S3  15.0542  28.0405  99.99  76.54 101.57 dss pspc rass
802146     28693    0         RXCJ1314.4-2515 2025:184:02:22:31.828  28.0 ACIS-I NONE       I0,I1,I2,I3 198.5750 -25.2639 244.99 105.12 176.44 dss pspc rass
901856     28726    0    [JDW2009] G359.55+0. 2025:184:10:38:02.565  14.0 ACIS-I NONE       I0,I1,I2,I3 265.9833 -29.2319 289.38 163.96  60.06 dss pspc rass
 ----      42302               CAL-ER (IAT05) 2025:184:15:06:56.994   0.9   --    --                    166.2189 -16.1899 239.42  73.47  90.33   
704982     30980    0         SDSS J0100+2802 2025:184:16:17:57.167  17.0 ACIS-I NONE    I0,I1,I2,I3,S3  15.0542  28.0405 109.45  77.46 179.19 dss pspc rass
705371 CCT 30978    0             NGC_6814_s4 2025:184:21:35:59.518  10.3 ACIS-S NONE             S2,S3 295.6105 -10.2668 137.56 162.46  86.43 dss pspc rass
 ----      42301               CAL-ER (PER04) 2025:185:00:46:34.246   3.0   --    --                    288.7000 -20.2000 117.92 174.07  21.42   
 ----      42300               CAL-ER (PER06) 2025:185:02:31:38.025   3.0   --    --                    279.4865 -24.2961 292.45 176.40 178.03   
 ----      42299               CAL-ER (PER07) 2025:185:05:30:00.000   0.9   --    --                    140.7000  -7.1000 229.65  47.35 129.19   
 ----      42298               CAL-ER (PER05) 2025:185:06:40:00.000   0.9   --    --                    201.0108 -19.1443 250.32 104.17  59.91   
 ----      42297               CAL-ER (CAL01) 2025:185:07:24:29.892   0.9   --    --                    140.7000  -7.1000 229.60  47.30  59.92   
 ----      42296               CAL-ER (PER09) 2025:185:10:00:00.000   0.9   --    --                    278.7483 -24.8081 293.74 175.32 128.30   
 ----      42295               CAL-ER (CAL01) 2025:185:12:00:00.000   0.9   --    --                    140.7000  -7.1000 229.52  47.14 128.30   
890244     29614    2                   A1795 2025:185:13:15:40.906  25.0 ACIS-I NONE    I0,I1,I2,I3,S2 207.2196  26.5908 243.61  91.21  76.91 dss pspc rass
901869     28857    0     CMZ Molecular Cloud 2025:185:20:47:28.990  13.0 ACIS-I NONE       I0,I1,I2,I3 266.5505 -28.8887 287.45 163.30  88.36 dss pspc rass
890245     29615    2                   A1795 2025:186:00:59:15.337  25.0 ACIS-I NONE       I0,I1,I2,I3 207.2196  26.5908 243.90  90.84  88.23 dss pspc rass
901869     30984    0     CMZ Molecular Cloud 2025:186:08:30:59.063  10.8 ACIS-I NONE       I0,I1,I2,I3 266.5505 -28.8887 286.95 162.86  88.03 dss pspc rass
890246     29616    2                   A1795 2025:186:12:07:05.403  25.0 ACIS-I NONE       I0,I1,I2,I3 207.2196  26.5908 233.03  90.46  92.73 dss pspc rass
901869     30985    0     CMZ Molecular Cloud 2025:186:19:39:48.700  10.7 ACIS-I NONE       I0,I1,I2,I3 266.5505 -28.8887 286.46 162.43  92.50 dss pspc rass
 ----      42294               CAL-ER (IAT06) 2025:186:23:14:17.461   0.9   --    --                    207.5788  27.2933 233.00  90.11  92.91   
890247     29617    2                   A1795 2025:186:23:38:28.461  23.0 ACIS-I NONE    I0,I1,I2,I3,S2 207.2196  26.5908 233.03  90.08   0.88 dss pspc rass
901856     30982    0    [JDW2009] G359.55+0. 2025:187:06:37:46.936  14.0 ACIS-I NONE       I0,I1,I2,I3 265.9833 -29.2319 286.21 161.43  92.14 dss pspc rass
601702 P1  29892    0    NGVS J123027.37+0749 2025:187:11:06:14.706  19.4 ACIS-S NONE             S2,S3 187.5752   7.8402 237.29  79.70  88.33 dss pspc rass
 ----      42293               CAL-ER (PER08) 2025:187:17:07:11.570   0.9   --    --                    280.3903 -22.4449 266.82 175.02  96.33   


JUN2325A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
503505     28777    0                SN 1941C 2025:174:00:48:25.719  12.0  HRC-I NONE                   182.3238  29.9275 238.00  79.14 122.22 dss pspc rass
601662     29667    0                 NGC4951 2025:174:04:32:58.557  22.6 ACIS-S NONE       I3,S2,S3,S4 196.2821  -6.4938 247.47 105.85  40.70 dss pspc rass
 ----      42328               CAL-ER (PER03) 2025:174:11:21:36.439   3.0   --    --                    268.0000 -23.0000 262.98 176.23  70.86   
 ----      42327               CAL-ER (PER01) 2025:174:15:00:00.000   1.0   --    --                    271.0000 -28.0000 346.06 175.28  81.95   
 ----      42326               CAL-ER (PER02) 2025:174:16:30:00.000   3.0   --    --                    109.0000 -22.0000 200.70  48.24 127.15   
 ----      42325               CAL-ER (PER04) 2025:174:20:30:00.000   1.0   --    --                    131.0000  -7.0000 229.89  48.40  34.94   
901856     28730    0    [JDW2009] G359.55+0. 2025:174:21:58:16.002  13.5 ACIS-I NONE       I0,I1,I2,I3 265.9833 -29.2319 313.29 171.73 123.72 dss pspc rass
201663     28003    0                 LHS 475 2025:175:02:25:41.002  14.5  HRC-I NONE                   290.2334 -82.5577  18.58 120.45  67.96 dss pspc rass
601662     30975    0                 NGC4951 2025:175:07:03:29.729  28.0 ACIS-S NONE       I3,S2,S3,S4 196.2821  -6.4938 247.49 104.81  92.90 dss pspc rass
503537     30129    0            SNR G1.9+0.3 2025:175:15:21:29.077  10.0 ACIS-S NONE             S2,S3 267.1875 -27.1667 284.69 173.31  71.20 dss pspc rass
705084     28275    0    SDSS J134100.24+4225 2025:175:18:46:56.316   3.7 ACIS-S NONE       S1,S2,S3,S4 205.2510  42.4310 234.99  89.11 104.79 dss pspc rass
890250     29620    2                   A1795 2025:175:20:13:53.316  15.0 ACIS-S NONE       I2,S1,S2,S3 207.2196  26.5908 238.26  98.79  16.52 dss pspc rass
503537     30976    0            SNR G1.9+0.3 2025:176:00:59:52.738  10.0 ACIS-S NONE             S2,S3 267.1875 -27.1667 290.99 172.98  92.21 dss pspc rass
503479     28076    1               SN 2014ab 2025:176:04:18:54.361  60.5 ACIS-S NONE             S2,S3 207.0250   7.3879 242.49 107.90  75.87 dss pspc rass
503537     30977    0            SNR G1.9+0.3 2025:176:21:40:00.913  10.0 ACIS-S NONE             S2,S3 267.1875 -27.1667 297.90 172.27  79.02 dss pspc rass
901867     28139    0         IGR J17381-2345 2025:177:00:47:38.800   5.0 ACIS-S NONE             S2,S3 264.5300 -23.7500 270.29 170.63  26.79 dss pspc rass
 ----      42324               CAL-ER (PER05) 2025:177:02:53:40.551   1.0   --    --                    146.7000  18.5000 254.82  48.44 122.29   
 ----      42323               CAL-ER (CAL01) 2025:177:04:00:00.000   2.0   --    --                    108.0000 -22.0000 196.53  47.11  77.84   
 ----      42322               CAL-ER (CAL01) 2025:177:05:45:00.000   1.0   --    --                    272.0000 -26.0000 313.97 176.23 130.78   
 ----      42321               CAL-ER (PER06) 2025:177:07:15:00.000   1.0   --    --                    277.0000 -21.0000 142.44 177.01 173.53   
 ----      42320               CAL-ER (CAL01) 2025:177:08:30:00.000   3.0   --    --                     40.0000  40.0000  87.40  48.89 128.86   
 ----      42319               CAL-ER (PER07) 2025:177:11:00:00.000   3.0   --    --                     50.0000   3.0000 119.06  48.14  51.64   
 ----      42318               CAL-ER (PER08) 2025:177:13:00:00.000   1.0   --    --                    280.0000 -26.0000  59.32 174.92 127.18   
704981     28632    0               Abell 370 2025:177:14:47:48.525  13.0 ACIS-I NONE       I0,I1,I2,I3  39.9604  -1.5856 110.00  59.27 115.96 dss pspc rass
590767     29591    1                   Cas A 2025:177:18:56:39.281   2.0 ACIS-S NONE             S2,S3 350.8575  58.8148 114.41  77.38  75.06 dss pspc rass
503468     28513    0           SNR G15.9+0.2 2025:177:20:07:35.734  19.0 ACIS-S NONE             S2,S3 274.7258 -15.0319 185.23 171.68  99.48 dss pspc rass
291794     29562    3                   ArLac 2025:178:02:06:40.734   5.0  HRC-I NONE                   332.1695  45.7426 129.91  94.12  86.38 dss pspc rass
601607     28113    0                  UGC695 2025:178:03:58:44.402  26.0 ACIS-I NONE       I0,I1,I2,I3  16.9433   1.0637 113.50  79.42  59.53 dss pspc rass
201848 CCT 30971    0     HEP G015.284-10.582 2025:178:11:48:27.871  10.0 ACIS-I NONE       I0,I1,I2,I3 284.5449 -20.4238 111.61 171.77  94.01 dss pspc rass
704981     30973    0               Abell 370 2025:178:15:16:33.865  10.0 ACIS-I NONE       I0,I1,I2,I3  39.9604  -1.5856 110.00  60.19 116.70 dss pspc rass
201666     28744    1                  G29-38 2025:178:18:45:38.865  14.5  HRC-I NONE                   352.1985   5.2484 114.93 100.97  48.30 dss pspc rass
802207     30434    0              Abell 2255 2025:178:23:22:18.151  25.0 ACIS-I NONE       I0,I1,I2,I3 258.2085  64.0529 196.96  91.49  87.70 dss pspc rass
503468     30972    0           SNR G15.9+0.2 2025:179:06:52:19.317  12.0 ACIS-S NONE             S2,S3 274.7258 -15.0319 194.75 171.49  80.34 dss pspc rass
890248     29618    2                   A1795 2025:179:10:46:39.461  25.3 ACIS-I NONE    I0,I1,I2,I3,S2 207.2196  26.5908 240.22  95.96  84.76 dss pspc rass
 ----      42317               CAL-ER (PER09) 2025:179:18:21:54.110   1.0   --    --                    276.0000 -21.0000 212.78 177.33  84.51   
 ----      42316               CAL-ER (PER11) 2025:179:19:30:00.000   1.0   --    --                    280.0000 -22.1000 117.95 177.53  96.36   
 ----      42315               CAL-ER (PER10) 2025:179:20:45:00.000   2.0   --    --                     44.0000  44.0000  82.75  48.27 129.60   
 ----      42314               CAL-ER (CAL01) 2025:179:22:20:00.000   1.0   --    --                    280.0000 -22.1400 118.39 177.64 129.60   
 ----      42313               CAL-ER (CAL01) 2025:179:23:30:00.000   3.0   --    --                     13.6000  37.3000 105.74  71.75 106.05   
 ----      42312               CAL-ER (CAL01) 2025:180:02:30:00.000   1.0   --    --                     44.0000  44.0000  82.91  48.44  24.02   
 ----      42311               CAL-ER (PER12) 2025:180:04:10:00.000   1.0   --    --                    136.0000 -10.0000 227.77  49.87 178.44   
901856     30974    0    [JDW2009] G359.55+0. 2025:180:05:34:47.772  15.5 ACIS-I NONE       I0,I1,I2,I3 265.9833 -29.2319 296.26 167.62 117.89 dss pspc rass
601650     30167    0                 NGC4298 2025:180:10:29:36.186  32.0 ACIS-S NONE       I3,S2,S3,S4 185.3867  14.6061 248.08  81.73  94.38 dss pspc rass
201666     28748    1                  G29-38 2025:180:20:13:14.508  14.5  HRC-I NONE                   352.1985   5.2484 115.22 102.91 156.62 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 06/27/25



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