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.

JUL0725B


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
 ----      42292               CAL-ER (PER01) 2025:187:18:15:21.516   0.9   --    --                    293.7974 -24.4062  77.96 172.48 165.86   
 ----      42291               CAL-ER (PER02) 2025:187:19:06:34.799   0.9   --    --                     30.1303 -13.3162 115.51  82.37  90.17   
 ----      42290               CAL-ER (CAL01) 2025:187:19:57:43.603   0.9   --    --                    294.1409 -24.5101  77.69 172.22  89.84   
 ----      42289               CAL-ER (PER03) 2025:187:20:44:52.440   3.0   --    --                     14.8720 -53.0960 103.25 108.54  71.84   
 ----      42288               CAL-ER (PER05) 2025:188:00:20:00.000   3.0   --    --                    167.0000 -38.0000 234.33  83.29  86.31   
901856     28128    0    [JDW2009] G359.55+0. 2025:188:03:53:09.295  15.0 ACIS-I NONE       I0,I1,I2,I3 265.9833 -29.2319 285.37 160.65  80.03 dss pspc rass
705017     28655    0                NGC 4579 2025:188:08:37:54.097  30.0 ACIS-S HETG       S1,S2,S3,S4 189.4317  11.8181 248.98  79.13  86.61 dss pspc rass
901856     30991    0    [JDW2009] G359.55+0. 2025:188:17:32:25.940  16.0 ACIS-I NONE       I0,I1,I2,I3 265.9833 -29.2319 279.99 160.13  85.64 dss pspc rass
802154     28852    0                   A1550 2025:188:22:39:10.556  16.0 ACIS-I NONE       I0,I1,I2,I3 187.2426  47.6218 255.02  67.15 110.60 dss pspc rass
503468     28065    0           SNR G15.9+0.2 2025:189:03:43:30.611  15.0 ACIS-S NONE       I2,I3,S2,S3 274.7258 -15.0319 230.00 166.03  99.75 dss pspc rass
802154     30993    0                   A1550 2025:189:08:31:10.677  16.0 ACIS-I NONE       I0,I1,I2,I3 187.2426  47.6218 255.02  66.90  99.75 dss pspc rass
503468     30990    0           SNR G15.9+0.2 2025:189:13:35:25.895  13.0 ACIS-S NONE       I2,I3,S2,S3 274.7258 -15.0319 220.00 165.71  99.39 dss pspc rass
201666     28746    1                  G29-38 2025:189:17:58:00.978  14.5  HRC-I NONE                   352.1985   5.2484 105.00 111.33 136.88 dss pspc rass
601664     29669    0                 NGC5134 2025:189:22:53:04.901  33.2 ACIS-S NONE       I3,S2,S3,S4 201.3273 -21.1341 262.00 100.73 170.54 dss pspc rass
 ----      42287               CAL-ER (PER14) 2025:190:08:56:23.393   0.9   --    --                     10.4266  -7.7000 111.42 100.35 155.08   
 ----      42286               CAL-ER (CAL01) 2025:190:09:45:29.579   0.9   --    --                    300.3255 -37.9129  36.38 161.42  80.64   
 ----      42285               CAL-ER (CAL01) 2025:190:13:50:00.000   3.0   --    --                     27.9118 -40.0000 112.92  97.52  66.53   
 ----      42284               CAL-ER (PER09) 2025:190:17:00:00.000   0.9   --    --                    230.2114  69.5795 233.52  79.20 148.34   
704982     28650    0         SDSS J0100+2802 2025:190:19:49:54.632  15.0 ACIS-I NONE    I0,I1,I2,I3,S3  15.0542  28.0405 101.99  82.94  79.29 dss pspc rass
802239 CCT 30988    0        MACSJ2020.3-2225 2025:191:00:34:16.064  11.0 ACIS-I NONE       I0,I1,I2,I3 305.0960 -22.4321  95.00 165.24  84.86 dss pspc rass
704982     30992    0         SDSS J0100+2802 2025:191:04:12:17.165  15.0 ACIS-I NONE    I0,I1,I2,I3,S3  15.0542  28.0405 111.61  83.25  86.33 dss pspc rass
802239 CCT 30997    0        MACSJ2020.3-2225 2025:191:08:57:06.599  10.0 ACIS-I NONE       I0,I1,I2,I3 305.0960 -22.4321  92.03 165.56  86.96 dss pspc rass
802196     30280    0         Perseus cluster 2025:191:12:25:18.251  15.0 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.5117  88.05  53.12 117.12 dss pspc rass
705372 CCT 30987    0                 NGC6814 2025:191:17:16:32.298  11.0 ACIS-S NONE             S2,S3 295.6691 -10.3236 155.35 166.93 115.80 dss pspc rass
802196     30995    0         Perseus cluster 2025:191:21:01:06.100  15.0 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.5117  88.25  53.42 115.79 dss pspc rass
402569     29787    1           XTE J1855-026 2025:192:01:53:09.119  15.0 ACIS-S HETG       S1,S2,S3,S4 283.8767  -2.6046 182.00 159.56 119.48 dss pspc rass
890251     29621    2                   A1795 2025:192:06:39:35.225  20.0 ACIS-S NONE       I2,S1,S2,S3 207.2196  26.5908 257.00  85.97  94.21 dss pspc rass
402569     30994    1           XTE J1855-026 2025:192:12:47:47.952  15.0 ACIS-S HETG       S1,S2,S3,S4 283.8767  -2.6046 198.00 159.46  87.20 dss pspc rass
802153     30562    0     ACT-CL_J0034.4+0225 2025:192:17:40:26.946  11.0 ACIS-S NONE    I2,I3,S2,S3,S4   8.6075   2.4256 100.00 100.45 122.17 dss pspc rass
802142     28327    0       PSZ2G358.94-70.57 2025:192:21:11:03.946   6.5 ACIS-I NONE    I0,I1,I2,I3,S2 352.7800 -36.5498 104.02 125.15  42.57 dss pspc rass
 ----      42283               CAL-ER (CAL01) 2025:192:23:23:25.186   0.9   --    --                     30.1303 -13.3162 113.48  86.87  41.24   
 ----      42282               CAL-ER (CAL01) 2025:193:00:14:54.628   0.9   --    --                    296.6617 -28.2300  39.68 172.04  91.38   
 ----      42281               CAL-ER (CAL01) 2025:193:03:40:00.000   3.0   --    --                     27.9118 -40.0000 111.08  99.17  73.95   
 ----      42280               CAL-ER (CAL01) 2025:193:07:30:00.000   0.9   --    --                    296.5613 -28.0000  38.42 172.41  74.34   
802153     30996    0     ACT-CL_J0034.4+0225 2025:193:11:34:36.782   9.5 ACIS-S NONE       I2,I3,S2,S3   8.6075   2.4256 112.90 101.14  91.13 dss pspc rass
201660     28000    0                   WR38a 2025:193:14:55:15.098  53.0 ACIS-I NONE       I0,I1,I2,I3 166.4542 -61.2333 229.00  93.92 120.62 dss pspc rass
300560 CCT 30989    0    GAIA DR2 40723625426 2025:194:06:12:48.520  10.8 ACIS-S NONE          S2,S3,S4 282.5148 -26.4043 293.99 169.83  84.26 dss pspc rass
802146     28692    0         RXCJ1314.4-2515 2025:194:09:44:46.249  43.0 ACIS-I NONE       I0,I1,I2,I3 198.5750 -25.2639 247.99  95.70  74.08 dss pspc rass
300560 CCT 30998    0    GAIA DR2 40723625426 2025:194:22:13:23.803  11.0 ACIS-S NONE          S2,S3,S4 282.5148 -26.4043 293.60 169.23  74.07 dss pspc rass


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   


Previous weeks' short-term schedules.

Last modified: 07/05/25



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