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.
Seq # NB ObsID Constr. Target Start Time SI Grat RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- ---- 42467 CAL-ER (PER02) 2025:111:01:24:58.319 2.0 -- -- 340.7000 6.3800 100.11 47.69 128.12 ---- 42466 CAL-ER (PER03) 2025:111:02:45:00.000 2.0 -- -- 6.4000 -31.4000 150.00 48.23 62.10 ---- 42465 CAL-ER (PER01) 2025:111:05:00:00.000 2.0 -- -- 222.0000 -39.0000 26.78 150.42 102.22 ---- 42464 CAL-ER (PER04) 2025:111:06:30:00.000 2.0 -- -- 54.2000 -30.5000 213.74 48.82 110.20 ---- 42463 CAL-ER (PER05) 2025:111:08:25:00.000 1.0 -- -- 206.2000 -14.8000 317.02 176.00 127.57 601637 29642 0 NGC1792 2025:111:09:38:43.997 17.5 ACIS-S NONE 76.3005 -37.9755 222.99 66.61 109.47 dss pspc rass 601663 30680 0 NGC5042 2025:111:15:07:43.547 18.0 ACIS-S NONE 198.8745 -23.9914 318.92 164.42 98.22 dss pspc rass 705304 30442 1 HE 1353-1917 2025:111:20:50:08.547 8.0 HRC-I NONE 209.1322 -19.5380 357.36 172.46 36.14 dss pspc rass 704953 28144 0 AM 0702-601 2025:111:23:37:16.183 36.0 ACIS-S NONE 105.8475 -60.2287 252.17 93.76 82.32 dss pspc rass 802146 28331 0 RXCJ1314.4-2515 2025:112:10:08:18.016 14.0 ACIS-I NONE 198.5804 -25.2842 318.35 163.02 69.89 dss pspc rass 705304 30911 1 HE 1353-1917 2025:112:14:44:03.016 5.4 HRC-I NONE 209.1302 -19.5318 339.99 172.65 20.90 dss pspc rass 201661 28734 0 NGC 2440 2025:112:16:50:54.895 6.0 HRC-I NONE 115.4751 -18.1872 256.83 89.33 96.14 dss pspc rass 802145 28330 0 SPT-CL J0234-5831 2025:112:19:02:03.391 21.5 ACIS-S NONE 38.6755 -58.5135 181.00 71.15 70.39 dss pspc rass 802146 30907 0 RXCJ1314.4-2515 2025:113:01:37:02.355 11.0 ACIS-I NONE 198.5807 -25.2840 320.00 162.82 95.17 dss pspc rass 601595 28529 0 Sextans A 2025:113:05:10:58.214 29.9 ACIS-S NONE 152.7425 -4.6901 258.21 122.19 67.94 dss pspc rass ---- 42462 CAL-ER (CTI01) 2025:113:13:56:31.244 3.0 -- -- 206.0000 -13.3000 277.35 174.97 54.09 ---- 42461 CAL-ER (PER06) 2025:113:16:45:00.000 3.0 -- -- 82.0000 8.0000 260.17 50.10 124.93 ---- 42460 CAL-ER (PER07) 2025:113:19:00:00.000 3.0 -- -- 54.2000 -30.5000 210.47 48.48 63.29 ---- 42459 CAL-ER (CAL01) 2025:113:20:50:00.000 1.0 -- -- 210.0000 -44.0000 357.45 148.69 102.40 ---- 42458 CAL-ER (CAL01) 2025:113:22:00:00.000 2.0 -- -- 54.2000 -30.5000 210.33 48.48 102.41 ---- 42457 CAL-ER (CAL01) 2025:113:23:45:00.000 1.0 -- -- 208.6000 -15.0000 308.78 176.42 129.20 601637 30910 0 NGC1792 2025:114:00:53:51.940 17.5 ACIS-S NONE 76.3022 -37.9729 220.00 65.81 110.71 dss pspc rass 802146 30908 0 RXCJ1314.4-2515 2025:114:06:22:33.569 15.0 ACIS-I NONE 198.5774 -25.2843 312.73 162.41 96.87 dss pspc rass 705304 30445 1 HE 1353-1917 2025:114:11:14:58.569 4.0 HRC-I NONE 209.1289 -19.5309 337.67 172.82 23.74 dss pspc rass 201661 30909 0 NGC 2440 2025:114:12:58:24.519 7.0 HRC-I NONE 115.4753 -18.1860 255.71 87.95 95.70 dss pspc rass 790393 29611 3 MKN421 2025:114:15:27:16.118 81.9 ACIS-S LETG 166.1432 38.2508 229.66 113.17 75.12 dss pspc rass 705367 CCT 30906 0 SDSSJ133526.00-01002 2025:115:14:39:24.607 18.5 ACIS-S NONE 203.8704 -0.9894 216.11 164.74 52.39 dss pspc rass 705263 P1 29975 0 SDSS J093808.00+4806 2025:115:20:18:59.810 11.2 ACIS-S NONE 144.5356 48.1306 245.31 93.67 70.89 dss pspc rass 802117 28302 0 Abell 1885 2025:115:23:51:09.642 24.5 ACIS-S NONE 213.4264 43.6704 184.00 122.94 47.31 dss pspc rass ---- 42456 CAL-ER (CTI02) 2025:116:07:07:25.159 3.0 -- -- 212.0000 -10.3000 206.88 176.41 58.13 ---- 42455 CAL-ER (PER08) 2025:116:10:00:00.000 2.0 -- -- 29.0000 61.0000 6.29 47.58 130.67 ---- 42454 CAL-ER (CAL01) 2025:116:12:00:00.000 1.0 -- -- 54.2000 -30.5000 206.97 48.23 159.42 ---- 42453 CAL-ER (CAL01) 2025:116:13:30:00.000 1.0 -- -- 210.0000 -44.0000 352.56 149.41 102.35 ---- 42452 CAL-ER (PER09) 2025:116:14:35:00.000 2.0 -- -- 222.1000 -14.9000 81.67 171.97 87.52 705049 28240 0 SDSS J222726.66+1205 2025:116:16:22:54.507 3.0 ACIS-S NONE 336.8736 12.0730 98.35 55.59 117.12 dss pspc rass 901868 28140 0 IGR J17163-2155 2025:116:17:46:57.993 5.0 ACIS-S NONE 259.0964 -21.9409 86.83 136.47 83.51 dss pspc rass 802171 28814 0 PSZ2G037.05-70.55 2025:116:19:44:19.594 7.2 ACIS-I NONE 351.5453 -24.1258 127.67 56.19 83.37 dss pspc rass 601636 30149 0 NGC1809 2025:116:22:15:01.690 50.0 ACIS-S NONE 75.5015 -69.5624 219.87 88.08 68.41 dss pspc rass 705304 30912 1 HE 1353-1917 2025:117:12:50:46.690 11.6 HRC-I NONE 209.1351 -19.5238 315.18 172.13 88.41 dss pspc rass 402545 P1 29763 0 1eRASS J132337.3-055 2025:117:16:36:25.018 1.0 ACIS-S NONE 200.9095 -5.9676 239.14 164.02 75.62 dss pspc rass 705144 29105 0 2MASX J11335602+6701 2025:117:17:26:58.365 5.0 ACIS-S NONE 173.5122 67.0392 220.14 93.55 82.75 dss pspc rass 705060 28251 0 SDSS J134627.56+5038 2025:117:19:15:35.365 4.0 ACIS-S NONE 206.6435 50.6593 198.98 114.97 24.41 dss pspc rass 802154 30565 0 A1550 2025:117:20:47:32.365 13.0 ACIS-I NONE 187.2356 47.6412 209.72 113.54 13.61 dss pspc rass
Seq # NB ObsID Constr. Target Start Time SI Grat RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- ---- 42491 CAL-ER (IAT01) 2025:103:22:26:04.585 0.0 -- -- 180.9279 -56.0000 332.06 130.36 76.31 705304 30454 1 HE 1353-1917 2025:103:23:05:50.585 10.0 HRC-I NONE 209.1433 -19.5460 34.24 167.68 60.02 dss pspc rass ---- 42490 CAL-ER (IAT02) 2025:104:02:30:22.761 0.9 -- -- 245.1092 21.6699 121.89 127.82 100.66 201810 30085 0 TV Cassiopeia 2025:104:03:20:32.022 10.0 ACIS-S HETG 4.7928 59.1218 22.31 51.56 85.37 dss pspc rass ---- 42489 CAL-ER (IAT03) 2025:104:06:47:08.652 0.9 -- -- 188.5571 11.1613 206.96 155.26 110.00 705357 DDT 30781 3 M84 2025:104:07:13:29.190 20.0 ACIS-S NONE 186.2829 12.9066 208.00 152.53 2.88 dss pspc rass 705216 29928 0 SDSS J090137.99+5320 2025:104:13:15:03.175 23.4 ACIS-S NONE 135.4095 53.3724 246.10 95.46 57.30 dss pspc rass 201653 27993 2 HD 75332 2025:104:20:27:19.275 12.5 HRC-I NONE 132.6304 33.3045 250.94 100.70 20.37 dss pspc rass 601660 30179 0 NGC4781 2025:105:00:29:06.010 15.0 ACIS-S NONE 193.5902 -10.5401 274.69 170.54 80.76 dss pspc rass 201797 30084 0 NGC1977 point 2025:105:05:18:41.797 16.0 ACIS-I NONE 83.8388 -4.8207 256.32 62.00 108.43 dss pspc rass 601660 30905 0 NGC4781 2025:105:10:24:57.951 14.0 ACIS-S NONE 193.5894 -10.5385 273.50 170.18 108.46 dss pspc rass 601609 28115 0 NGC4485 2025:105:14:53:20.967 7.1 ACIS-I NONE 187.6478 41.7105 201.99 126.36 87.98 dss pspc rass ---- 42488 CAL-ER (PER11) 2025:105:17:21:51.457 0.9 -- -- 208.5944 -1.5072 150.53 170.34 63.42 ---- 42487 CAL-ER (PER12) 2025:105:18:10:17.442 0.9 -- -- 210.6962 -11.9679 73.77 172.94 77.62 ---- 42486 CAL-ER (PER02) 2025:105:19:08:21.592 3.0 -- -- 334.7274 -7.6856 109.05 51.99 120.99 ---- 42485 CAL-ER (PER03) 2025:105:22:00:00.000 3.0 -- -- 216.6792 -39.4386 24.50 148.43 106.71 ---- 42484 CAL-ER (PER04) 2025:106:00:20:00.000 3.0 -- -- 69.0055 -54.4762 226.19 74.73 84.31 ---- 42483 CAL-ER (PER05) 2025:106:02:15:00.000 0.9 -- -- 206.0000 -16.0000 17.42 173.75 105.40 802137 28322 0 PSZ2G346.30-30.35 2025:106:03:28:33.205 6.0 ACIS-I NONE 298.3355 -52.0823 99.47 95.36 80.75 dss pspc rass 402564 TOO 29782 2 4U 1630-47 2025:106:05:30:28.591 31.0 ACIS-S HETG 248.5006 -47.4203 59.74 127.28 31.89 dss pspc rass ---- 42482 CAL-ER (IAT04) 2025:106:14:45:31.905 0.9 -- -- 215.2476 1.5525 135.00 164.19 103.00 201810 30902 0 TV Cassiopeia 2025:106:15:42:27.786 10.0 ACIS-S HETG 4.7933 59.1200 25.41 51.16 115.87 dss pspc rass 705043 28234 0 SDSS J133856.51+2243 2025:106:19:06:04.952 5.2 ACIS-S NONE 204.7617 22.7403 180.04 147.01 96.54 dss pspc rass ---- 42481 CAL-ER (IAT07) 2025:106:21:02:00.657 0.0 -- -- 124.8611 22.2075 256.66 95.21 82.18 201797 30899 0 NGC1977 point 2025:106:21:29:14.350 9.4 ACIS-I NONE 83.8421 -4.8192 246.00 60.62 51.20 dss pspc rass 802146 28695 0 RXCJ1314.4-2515 2025:107:00:47:13.551 16.0 ACIS-I NONE 198.5876 -25.2817 336.68 163.86 116.19 dss pspc rass 201797 30900 0 NGC1977 point 2025:107:05:55:09.283 15.0 ACIS-I NONE 83.8418 -4.8183 247.00 60.33 115.93 dss pspc rass 802146 30895 0 RXCJ1314.4-2515 2025:107:10:46:19.923 16.0 ACIS-I NONE 198.5856 -25.2820 335.18 163.85 115.55 dss pspc rass ---- 42480 CAL-ER (IAT10) 2025:107:15:42:42.137 0.0 -- -- 175.2532 -8.4768 248.00 150.01 84.17 704971 28577 0 NGC 4102 2025:107:16:13:22.162 60.1 ACIS-S NONE 181.6188 52.7341 217.97 113.44 66.68 dss pspc rass ---- 42479 CAL-ER (PER06) 2025:108:09:21:58.621 0.9 -- -- 199.8510 5.3367 201.51 162.61 50.14 ---- 42478 CAL-ER (PER07) 2025:108:10:15:07.033 3.0 -- -- 195.0000 -17.0000 297.82 167.44 98.81 ---- 42477 CAL-ER (PER08) 2025:108:13:00:00.000 3.0 -- -- 115.0000 -28.0000 259.71 93.89 73.54 ---- 42476 CAL-ER (PER14) 2025:108:16:00:00.000 3.0 -- -- 78.2387 -7.9077 250.60 54.84 40.16 503503 30112 1 GW170817 2025:108:18:00:48.540 10.0 ACIS-S NONE 197.4249 -23.3750 323.41 164.83 114.41 dss pspc rass ---- 42475 CAL-ER (IAT11) 2025:108:21:26:16.420 0.9 -- -- 130.1753 20.0048 245.00 98.60 104.84 201685 28762 0 Trumpler 3 2025:108:22:13:21.184 10.0 ACIS-I NONE 47.9627 63.2156 330.04 54.35 71.53 dss pspc rass ---- 42474 CAL-ER (CAL01) 2025:109:01:31:24.948 0.9 -- -- 130.1753 20.0048 245.00 98.43 71.53 503503 30903 1 GW170817 2025:109:02:25:43.494 10.0 ACIS-S NONE 197.4239 -23.3742 322.11 164.72 104.07 dss pspc rass ---- 42473 CAL-ER (CAL01) 2025:109:05:50:22.092 0.9 -- -- 130.1753 20.0048 250.00 98.25 101.14 201685 30897 0 Trumpler 3 2025:109:06:37:11.490 10.0 ACIS-I NONE 47.9600 63.2157 330.04 54.18 70.38 dss pspc rass ---- 42472 CAL-ER (CAL01) 2025:109:09:54:59.887 0.9 -- -- 130.1753 20.0048 250.00 98.08 70.38 503503 30904 1 GW170817 2025:109:10:48:29.773 10.0 ACIS-S NONE 197.4228 -23.3734 320.83 164.62 100.42 dss pspc rass ---- 42471 CAL-ER (CAL01) 2025:109:14:13:37.211 0.9 -- -- 130.1753 20.0048 245.00 97.90 103.31 201685 30898 0 Trumpler 3 2025:109:15:00:42.003 10.0 ACIS-I NONE 47.9576 63.2158 330.04 54.00 71.53 dss pspc rass ---- 42470 CAL-ER (IAT12) 2025:109:18:16:37.508 0.9 -- -- 301.2918 47.2413 95.01 79.22 61.91 901856 28728 0 [JDW2009] G359.55+0. 2025:109:19:07:00.948 12.0 ACIS-I NONE 265.9920 -29.2516 75.00 122.95 86.43 dss pspc rass 705304 30457 1 HE 1353-1917 2025:109:23:09:25.948 9.9 HRC-I NONE 209.1342 -19.5422 9.55 171.70 64.98 dss pspc rass ---- 42469 CAL-ER (IAT14) 2025:110:02:23:29.562 0.0 -- -- 75.9856 -72.7626 226.87 89.71 84.42 201797 30901 0 NGC1977 point 2025:110:02:54:45.945 15.0 ACIS-I NONE 83.8417 -4.8175 247.00 57.98 69.40 dss pspc rass 802121 28681 0 Abell 754 2025:110:07:32:08.754 37.0 ACIS-I NONE 137.1276 -9.5883 261.23 110.41 53.46 dss pspc rass 901856 30896 0 [JDW2009] G359.55+0. 2025:110:18:35:56.969 16.8 ACIS-I NONE 265.9914 -29.2488 75.00 123.91 142.37 dss pspc rass ---- 42468 CAL-ER (PER13) 2025:110:23:44:10.989 0.9 -- -- 213.0696 -12.3371 82.49 175.67 58.31
Previous weeks' short-term schedules.
Last modified: 04/18/25
