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.

MAR3125A

Seq # NB ObsID Constr. Target Start Time SI Grat RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- ---- 42532 CAL-ER (PER01) 2025:089:21:39:20.801 2.0 -- -- 190.8500 -0.9400 152.83 176.57 48.78 ---- 42531 CAL-ER (PER02) 2025:089:23:40:00.000 1.0 -- -- 343.0000 47.0000 36.16 48.63 127.97 ---- 42530 CAL-ER (PER04) 2025:090:00:55:00.000 1.0 -- -- 332.2000 -28.3000 126.05 48.23 110.68 ---- 42529 CAL-ER (PER03) 2025:090:02:00:00.000 2.0 -- -- 211.0000 -39.0000 34.75 139.95 93.23 ---- 42528 CAL-ER (CAL01) 2025:090:03:30:00.000 1.0 -- -- 335.5000 -55.5000 142.33 65.80 74.39 ---- 42527 CAL-ER (PER05) 2025:090:04:40:00.000 1.0 -- -- 192.4000 -6.2000 53.78 176.45 113.88 ---- 42526 CAL-ER (PER06) 2025:090:05:55:00.000 1.0 -- -- 191.3000 -0.0200 157.21 175.56 103.63 704971 28162 0 NGC 4102 2025:090:06:54:06.200 45.5 ACIS-S NONE 181.6339 52.7212 182.97 122.76 57.05 dss pspc rass 201661 28732 0 NGC 2440 2025:090:20:14:51.200 14.0 HRC-I NONE 115.4716 -18.1924 270.64 105.89 105.61 dss pspc rass 705282 29994 2 M 87 2025:091:00:46:10.629 5.0 ACIS-S NONE 187.7223 12.4071 204.00 163.00 101.21 dss pspc rass 802196 30279 0 Perseus cluster 2025:091:02:50:14.533 14.5 ACIS-I NONE 49.9300 41.5167 303.01 51.17 113.54 dss pspc rass 802134 28319 0 PSZ2G284.59+70.84 2025:091:07:33:12.465 7.6 ACIS-I NONE 186.8725 8.8470 201.00 166.15 116.10 dss pspc rass 802196 30883 0 Perseus cluster 2025:091:10:20:42.281 17.0 ACIS-I NONE 49.9286 41.5174 303.01 50.89 116.10 dss pspc rass 601608 28114 0 NGC4656 2025:091:15:41:25.571 24.7 ACIS-I NONE 191.0084 32.1798 172.99 143.18 98.50 dss pspc rass 201807 29738 3 4FGL J1809.2-2726 2025:091:23:14:55.439 5.0 ACIS-I NONE 272.3205 -27.4605 90.17 100.06 118.49 dss pspc rass 705143 29104 0 WISEA J092733.57+633 2025:092:01:24:16.333 5.0 ACIS-S NONE 141.9070 63.5563 230.73 102.36 137.32 dss pspc rass 705327 30510 0 M87 2025:092:03:30:01.333 7.3 HRC-I NONE 187.7213 12.4034 192.00 162.39 60.62 dss pspc rass 402552 P1 29770 0 1eRASS J144413.3-091 2025:092:06:15:33.096 2.3 ACIS-S NONE 221.0547 -9.3375 67.00 150.30 127.63 dss pspc rass 802148 28333 0 Abell 3112 W 2025:092:07:38:27.153 13.9 ACIS-I NONE 49.0947 -44.1437 217.00 59.55 130.80 dss pspc rass ---- 42525 CAL-ER (CTI01) 2025:092:12:12:53.301 3.0 -- -- 192.0000 -9.0000 4.81 175.98 121.12 ---- 42524 CAL-ER (PER07) 2025:092:16:15:00.000 3.0 -- -- 12.0000 -43.0000 180.27 48.07 128.04 ---- 42523 CAL-ER (CAL01) 2025:092:19:00:00.000 3.0 -- -- 46.0000 -30.0000 228.78 47.95 40.65 ---- 42522 CAL-ER (CAL01) 2025:092:21:30:00.000 2.0 -- -- 190.1000 -8.0000 326.64 176.57 128.78 503497 28353 1 PSR J1101-6101 2025:092:22:58:45.820 38.4 ACIS-I NONE 165.4032 -61.0322 328.72 120.64 58.67 dss pspc rass 705364 CCT 30875 0 HE1211-0513 2025:093:10:13:43.001 9.4 ACIS-S NONE 183.4676 -5.4813 270.63 171.00 87.54 dss pspc rass 100234 29676 2 Jupiter 2025:093:13:34:24.001 14.5 HRC-S NONE 74.8680 22.4155 275.86 62.32 110.33 dss pspc rass 503497 30878 1 PSR J1101-6101 2025:093:18:15:58.745 10.0 ACIS-I NONE 165.4046 -61.0294 317.97 120.73 109.86 dss pspc rass 503529 TOO 29814 2 GRB250314A 2025:093:21:42:07.362 10.0 ACIS-S NONE 201.3031 -5.3076 74.00 171.69 107.90 dss pspc rass 705301 P1 30013 0 GAMA5275222 2025:094:01:13:05.642 6.0 ACIS-S NONE 345.3852 -34.2197 140.02 47.61 129.62 dss pspc rass 601635 30148 0 NGC1546 2025:094:03:22:46.328 10.0 ACIS-S NONE 63.6376 -56.0553 232.93 74.16 63.80 dss pspc rass 705363 CCT 30874 0 PG1149-110 2025:094:06:46:38.117 9.4 ACIS-S NONE 177.9979 -11.3526 287.00 163.83 97.63 dss pspc rass 100233 29675 2 Jupiter 2025:094:10:05:43.117 14.5 HRC-S NONE 75.0092 22.5171 275.85 61.61 108.34 dss pspc rass 201840 CCT 30877 0 2RXS J120239.6-10424 2025:094:14:47:27.189 9.4 ACIS-S NONE 180.6477 -10.6923 286.00 166.27 110.56 dss pspc rass 601635 30882 0 NGC1546 2025:094:18:01:58.306 18.7 ACIS-S NONE 63.6376 -56.0548 233.99 74.13 100.58 dss pspc rass 201808 29739 3 4FGL J1809.2-2726 2025:094:23:49:47.421 5.0 ACIS-I NONE 272.3212 -27.4621 89.96 103.03 93.08 dss pspc rass 705046 28237 0 SDSS J141705.98+4934 2025:095:01:51:27.325 3.0 ACIS-S NONE 214.3153 49.5779 156.07 121.71 102.74 dss pspc rass ---- 42521 CAL-ER (CAL01) 2025:095:03:09:21.915 3.0 -- -- 194.0000 -1.3000 180.69 175.31 55.79 ---- 42520 CAL-ER (PER08) 2025:095:06:00:00.000 3.0 -- -- 193.4000 -9.7000 348.37 176.27 167.77 ---- 42519 CAL-ER (CAL01) 2025:095:08:00:00.000 3.0 -- -- 12.0000 -43.0000 177.08 49.12 127.58 ---- 42518 CAL-ER (PER09) 2025:095:10:40:00.000 3.0 -- -- 326.0000 1.0000 97.29 48.47 83.75 201806 29737 3 4FGL J1809.2-2726 2025:095:12:59:22.495 5.0 ACIS-I NONE 272.3217 -27.4629 89.93 103.54 59.14 dss pspc rass 705055 28246 0 SDSS J143108.88+2714 2025:095:14:58:11.467 4.0 ACIS-S NONE 217.8168 27.2292 142.51 139.70 89.92 dss pspc rass 503529 TOO 30879 2 GRB250314A 2025:095:16:33:34.708 20.0 ACIS-S NONE 201.3144 -5.3063 97.79 173.22 59.49 dss pspc rass 705365 CCT 30876 0 B2.2 2147+28 2025:095:22:50:05.721 16.0 ACIS-S NONE 327.4820 29.1577 68.30 50.08 124.58 dss pspc rass 705327 30884 0 M87 2025:096:04:00:46.721 11.4 HRC-I NONE 187.7273 12.4051 187.00 159.89 125.21 dss pspc rass 503529 TOO 30880 2 GRB250314A 2025:096:07:41:51.845 15.0 ACIS-S NONE 201.3249 -5.3014 119.20 173.76 70.13 dss pspc rass 705362 CCT 30873 0 SDSSJ214337.32-00472 2025:096:12:35:38.428 20.0 ACIS-S NONE 325.9203 -0.8188 95.00 49.87 127.24 dss pspc rass 503529 TOO 30881 2 GRB250314A 2025:096:18:52:17.986 20.0 ACIS-S NONE 201.3198 -5.3090 102.97 174.16 125.22 dss pspc rass

MAR2625A

Seq # NB ObsID Constr. Target Start Time SI Grat RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- 901885 P1 29911 0 IGR J16580-3247 2025:085:07:18:00.164 5.0 ACIS-I NONE 254.5307 -32.8175 80.38 108.39 54.17 dss pspc rass 503517 30460 2 SNR 1987A 2025:085:09:25:21.164 14.5 HRC-S LETG 83.8510 -69.2498 258.63 88.07 78.63 dss pspc rass 503503 30867 1 GW170817 2025:085:14:00:37.173 20.0 ACIS-S NONE 197.4339 -23.4008 30.71 155.85 81.45 dss pspc rass 402587 30530 0 4U 1626-67 2025:085:20:01:28.799 30.0 ACIS-S HETG 248.0655 -67.4860 65.12 102.42 54.12 dss pspc rass ---- 42540 CAL-ER (IAT01) 2025:086:04:46:48.425 0.0 -- -- 172.5465 -29.2074 332.05 150.43 64.47 705360 CCT 30863 0 SDSSJ115741.94-03210 2025:086:05:16:33.865 15.0 ACIS-S NONE 179.4138 -3.3310 276.88 173.42 62.58 dss pspc rass 201647 30648 1 HD 284785 2025:086:10:10:34.865 8.0 HRC-I NONE 71.7757 20.8984 276.55 66.34 109.54 dss pspc rass 601638 30782 0 NGC2090 2025:086:12:52:31.645 13.0 ACIS-S NONE 86.7469 -34.2513 262.43 83.67 59.01 dss pspc rass 503497 30106 1 PSR J1101-6101 2025:086:16:57:07.251 15.0 ACIS-I NONE 165.4111 -61.0342 335.72 119.55 55.92 dss pspc rass 402600 DDT 30871 1 EP J120944.2+585060 2025:086:21:59:31.825 11.0 HRC-I NONE 182.4654 58.8579 184.67 118.24 166.09 dss pspc rass 802219 P1 30037 0 ACT-CL J1311.4+1842 2025:087:01:29:02.745 10.8 ACIS-S NONE 197.8511 18.7124 150.00 155.79 48.01 dss pspc rass ---- 42539 CAL-ER (CAL01) 2025:087:04:53:46.381 0.9 -- -- 185.4855 5.8238 188.75 171.14 40.05 ---- 42538 CAL-ER (CAL01) 2025:087:05:45:15.248 7.0 -- -- 178.8558 -4.3310 279.54 171.89 91.34 ---- 42537 CAL-ER (CAL01) 2025:087:08:17:40.584 3.0 -- -- 87.7800 -40.4390 261.75 85.00 91.15 ---- 42536 CAL-ER (CAL01) 2025:087:12:30:00.000 0.9 -- -- 178.8558 -4.3314 278.53 171.68 91.39 ---- 42535 CAL-ER (PER06) 2025:087:13:30:19.909 0.9 -- -- 190.2616 -5.6591 50.44 175.94 131.17 402508 28836 0 4U 1626-67 2025:087:15:28:01.183 29.0 ACIS-S HETG 248.0645 -67.4855 63.83 103.66 77.56 dss pspc rass 901856 28729 0 [JDW2009] G359.55+0. 2025:088:00:02:06.347 28.5 ACIS-I NONE 265.9946 -29.2455 87.15 101.66 40.70 dss pspc rass ---- 42534 CAL-ER (CAL01) 2025:088:08:22:50.223 0.0 -- -- 223.6302 13.1105 112.43 140.88 66.29 601587 28760 0 NGC4261 2025:088:09:02:36.223 13.2 HRC-I NONE 184.8583 5.8368 198.40 170.31 86.91 dss pspc rass 201839 CCT 30866 0 Gaia DR2 16877479864 2025:088:13:24:16.984 14.6 ACIS-S NONE 59.1205 31.9739 289.94 55.66 117.81 dss pspc rass 802154 28854 0 A1550 2025:088:18:03:09.087 27.3 ACIS-I NONE 187.2505 47.6407 178.99 128.84 87.91 dss pspc rass 201838 CCT 30865 0 2MASS J18352154-3123 2025:089:02:21:23.706 5.0 ACIS-S NONE 278.8508 -31.4164 93.26 91.67 124.85 dss pspc rass 503497 30109 1 PSR J1101-6101 2025:089:04:16:47.247 25.0 ACIS-I NONE 165.4168 -61.0349 339.98 120.02 74.52 dss pspc rass 601715 CCT 30864 0 UGC 06850 2025:089:11:52:24.077 11.0 ACIS-I NONE 178.1483 -2.4559 256.00 169.15 105.51 dss pspc rass 705361 CCT 30872 0 B2.3 0408+34A 2025:089:15:36:17.985 16.8 ACIS-S NONE 62.8981 34.7787 289.19 58.52 112.79 dss pspc rass ---- 42533 CAL-ER (PER07) 2025:089:20:57:17.091 0.9 -- -- 185.4855 5.8238 201.12 169.50 113.83

Last modified: 03/30/25

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