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 ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- 590783 29607 1 SNR G21.5-0.9 2025:139:00:42:53.207 10.0 HRC-I NONE 278.4036 -10.5823 107.68 137.93 123.18 dss pspc rass 705012 30735 0 FRB20220914A 2025:139:04:04:15.703 25.0 ACIS-S NONE 282.1270 73.3248 127.93 82.19 86.44 dss pspc rass 705227 30208 0 NGC5728 2025:139:11:42:16.739 15.0 ACIS-S NONE 220.6021 -17.2306 243.00 165.01 116.33 dss pspc rass 201686 30630 0 zeta Puppis 2025:139:16:31:10.517 20.0 ACIS-S HETG 120.8953 -39.9797 250.50 84.70 105.28 dss pspc rass 705227 30939 0 NGC5728 2025:139:22:42:57.537 12.6 ACIS-S NONE 220.6004 -17.2297 247.00 164.57 103.28 dss pspc rass ---- 42407 CAL-ER (PER01) 2025:140:02:49:19.561 3.0 -- -- 134.0000 17.0000 253.88 72.61 92.07 ---- 42406 CAL-ER (PER02) 2025:140:04:17:17.981 0.9 -- -- 230.2864 -18.6918 257.54 173.67 101.13 ---- 42405 CAL-ER (PER03) 2025:140:05:25:19.677 0.9 -- -- 249.0000 -18.7601 97.96 168.53 165.80 ---- 42404 CAL-ER (PER04) 2025:140:06:14:58.172 3.0 -- -- 333.1110 -5.5729 110.51 86.13 83.06 ---- 42403 CAL-ER (PER05) 2025:140:09:00:00.000 3.0 -- -- 250.0000 -26.3223 64.69 166.51 83.00 ---- 42402 CAL-ER (PER09) 2025:140:11:30:00.000 0.9 -- -- 344.0000 10.0000 107.84 70.86 100.30 402510 28769 0 GX 9+9 2025:140:12:28:00.337 10.0 ACIS-S HETG 262.9486 -16.9832 101.06 155.40 84.51 dss pspc rass 201844 CCT 30929 0 2RXS J000539.7-07540 2025:140:15:51:45.795 20.0 ACIS-S NONE 1.4326 -7.9235 110.00 61.66 97.16 dss pspc rass 402510 30934 0 GX 9+9 2025:140:22:02:11.641 10.0 ACIS-S HETG 262.9491 -16.9838 101.26 155.78 97.19 dss pspc rass ---- 42401 CAL-ER (IAT02) 2025:141:01:16:34.221 0.0 -- -- 337.0000 -48.0000 110.27 98.85 75.19 ---- 42400 CAL-ER (IAT01) 2025:141:01:43:44.166 0.9 -- -- 40.2904 -30.3516 159.39 53.16 50.92 601632 30142 0 NGC1097 2025:141:02:27:10.330 10.0 ACIS-S NONE 41.5828 -30.2655 164.00 52.71 4.12 dss pspc rass ---- 42399 CAL-ER (CAL01) 2025:141:05:36:28.587 0.0 -- -- 337.0000 -48.0000 110.16 99.00 52.37 402510 30935 0 GX 9+9 2025:141:06:09:03.927 10.0 ACIS-S HETG 262.9495 -16.9841 101.46 156.10 75.33 dss pspc rass ---- 42398 CAL-ER (CAL01) 2025:141:09:23:28.805 0.0 -- -- 337.0000 -48.0000 110.06 99.12 75.37 ---- 42397 CAL-ER (CAL01) 2025:141:09:50:38.518 0.9 -- -- 40.2904 -30.3516 159.03 53.33 50.90 601632 30937 0 NGC1097 2025:141:10:34:04.682 10.0 ACIS-S NONE 41.5835 -30.2654 164.00 52.88 4.46 dss pspc rass ---- 42396 CAL-ER (CAL01) 2025:141:13:43:23.416 0.0 -- -- 337.0000 -48.0000 109.96 99.27 52.41 402510 30936 0 GX 9+9 2025:141:14:16:01.167 10.0 ACIS-S HETG 262.9499 -16.9845 101.68 156.42 75.51 dss pspc rass ---- 42395 CAL-ER (CAL01) 2025:141:17:30:28.449 0.0 -- -- 337.0000 -48.0000 109.87 99.39 75.55 ---- 42394 CAL-ER (CAL01) 2025:141:17:57:37.937 0.9 -- -- 40.2904 -30.3516 158.68 53.50 50.89 601632 30938 0 NGC1097 2025:141:18:41:04.101 10.0 ACIS-S NONE 41.5841 -30.2653 164.00 53.04 4.80 dss pspc rass ---- 42393 CAL-ER (IAT03) 2025:141:21:58:08.021 0.9 -- -- 115.8759 -32.6965 234.00 76.12 67.04 201573 26966 2 XI BOO 2025:141:22:55:52.527 5.0 HRC-I NONE 222.8617 19.1195 210.00 137.68 119.51 dss pspc rass 601660 30728 0 NGC4781 2025:142:00:47:16.114 11.3 ACIS-S NONE 193.5894 -10.5331 251.70 135.55 56.52 dss pspc rass 601653 30171 0 NGC4540 2025:142:04:17:46.200 30.0 ACIS-S NONE 188.7034 15.5569 235.47 119.04 31.14 dss pspc rass 601595 28534 0 Sextans A 2025:142:13:02:41.239 17.1 ACIS-S NONE 152.7430 -4.6902 249.88 94.91 42.30 dss pspc rass ---- 42392 CAL-ER (CAL01) 2025:142:18:09:36.508 3.0 -- -- 134.0000 17.0000 253.86 70.07 28.58 ---- 42391 CAL-ER (CAL01) 2025:142:19:37:34.845 0.9 -- -- 230.2864 -18.6919 256.89 171.13 101.13 ---- 42390 CAL-ER (CAL01) 2025:142:20:44:27.733 0.9 -- -- 249.0000 -18.7601 102.54 170.94 160.64 ---- 42389 CAL-ER (CAL01) 2025:142:21:33:34.012 3.0 -- -- 330.1110 -5.5729 110.45 91.46 80.65 ---- 42388 CAL-ER (CAL01) 2025:143:00:20:00.000 3.0 -- -- 250.0000 -26.3223 60.63 168.90 81.54 ---- 42387 CAL-ER (CAL01) 2025:143:01:48:00.178 0.9 -- -- 344.0000 10.0000 108.58 73.26 101.26 601595 28530 0 Sextans A 2025:143:03:15:35.646 24.0 ACIS-S NONE 152.7431 -4.6920 249.73 94.39 178.73 dss pspc rass 402508 28767 0 4U 1626-67 2025:143:10:38:00.646 11.0 HRC-I HETG 248.0345 -67.4714 10.13 132.82 96.87 dss pspc rass 705227 30940 0 NGC5728 2025:143:14:18:26.211 10.5 ACIS-S NONE 220.5933 -17.2320 265.00 161.09 97.17 dss pspc rass 402581 TOO 30047 3 EXO 0748-676 2025:143:17:49:38.140 15.0 ACIS-S NONE 117.1578 -67.7308 232.13 97.54 93.14 dss pspc rass 601595 30931 0 Sextans A 2025:143:22:30:13.068 10.0 ACIS-S NONE 152.7432 -4.6930 249.56 93.63 67.87 dss pspc rass 705227 30941 0 NGC5728 2025:144:01:47:22.745 12.0 ACIS-S NONE 220.5934 -17.2321 265.00 160.62 67.48 dss pspc rass 402508 30932 0 4U 1626-67 2025:144:05:49:47.745 12.0 HRC-I HETG 248.0335 -67.4713 9.09 133.02 96.33 dss pspc rass 590762 29586 2 E0102-72.3 2025:144:09:33:20.457 19.0 ACIS-S NONE 15.9304 -71.9992 137.99 97.64 36.52 dss pspc rass 201845 CCT 30930 0 2RXS J160108.0-32545 2025:144:15:21:43.748 10.0 ACIS-S NONE 240.2570 -32.9188 349.99 167.82 73.00 dss pspc rass 705368 CCT 30928 0 2MASS J08182026-1425 2025:144:18:48:29.093 10.0 ACIS-S NONE 124.5902 -14.4092 235.00 71.26 110.65 dss pspc rass 402508 30933 0 4U 1626-67 2025:144:22:17:34.093 10.0 HRC-I HETG 248.0316 -67.4714 8.20 133.20 91.48 dss pspc rass 601648 30165 0 NGC4207 2025:145:01:44:34.195 28.3 ACIS-S NONE 183.8680 9.5841 250.00 115.46 111.76 dss pspc rass ---- 42386 CAL-ER (CAL01) 2025:145:10:03:49.485 0.9 -- -- 230.2865 -18.6919 256.54 168.63 53.86 ---- 42385 CAL-ER (CAL01) 2025:145:11:14:11.006 2.0 -- -- 252.9935 -21.6265 88.24 169.90 176.29 ---- 42384 CAL-ER (CAL01) 2025:145:12:19:54.304 3.0 -- -- 330.1110 -5.5729 110.72 93.96 76.00 ---- 42383 CAL-ER (PER10) 2025:145:15:25:00.000 3.0 -- -- 130.0000 2.0000 248.17 68.47 169.46 601660 30942 0 NGC4781 2025:145:18:56:15.773 11.9 ACIS-S NONE 193.5900 -10.5386 250.00 132.00 64.58 dss pspc rass 590782 29606 1 SNR G21.5-0.9 2025:145:23:06:26.753 9.4 HRC-S NONE 278.4026 -10.5800 111.00 144.15 163.57 dss pspc rass
Seq # NB ObsID Constr. Target Start Time SI Grat RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- 704971 28581 0 NGC 4102 2025:131:21:58:41.440 13.0 ACIS-S NONE 181.6105 52.7334 227.99 98.40 123.92 dss pspc rass ---- 42422 CAL-ER (PER01) 2025:132:02:08:45.168 3.0 -- -- 229.0000 -13.0000 178.54 174.94 81.82 ---- 42421 CAL-ER (PER03) 2025:132:03:47:45.786 3.5 -- -- 226.2750 -22.2077 328.40 175.18 150.80 ---- 42420 CAL-ER (PER02) 2025:132:05:25:28.116 3.0 -- -- 88.0000 -39.0000 219.00 67.76 107.42 ---- 42419 CAL-ER (CAL01) 2025:132:12:30:00.000 0.9 -- -- 219.5760 -22.6780 294.69 169.88 105.19 705227 30209 0 NGC5728 2025:132:13:37:36.784 12.5 ACIS-S NONE 220.5936 -17.2291 262.18 171.65 33.31 dss pspc rass ---- 42418 CAL-ER (IAT01) 2025:132:17:33:41.166 0.0 -- -- 198.3639 -53.4944 313.64 137.31 75.33 590764 29588 2 E0102-72.3 2025:132:18:02:12.107 30.0 ACIS-I NONE 15.9222 -71.9887 148.27 93.01 57.00 dss pspc rass ---- 42417 CAL-ER (CAL01) 2025:133:02:45:54.110 0.0 -- -- 198.3639 -53.4944 313.10 137.21 57.15 705227 30923 0 NGC5728 2025:133:03:18:28.457 15.0 ACIS-S NONE 220.5935 -17.2283 261.73 171.09 75.25 dss pspc rass 802201 30371 0 Abell 795 2025:133:08:03:16.595 34.7 ACIS-S NONE 141.0135 14.1773 237.00 86.44 86.86 dss pspc rass 402566 TOO 29784 2 4U 1630-47 2025:133:18:27:47.101 15.0 ACIS-S HETG 248.4817 -47.4113 25.98 147.53 138.04 dss pspc rass 300558 30098 0 VV Pup 2025:133:23:17:02.118 30.0 ACIS-S HETG 123.7823 -19.0311 240.00 80.93 106.88 dss pspc rass 402566 TOO 30922 2 4U 1630-47 2025:134:08:16:41.998 15.0 ACIS-S HETG 248.4857 -47.4111 30.98 147.87 108.74 dss pspc rass 705304 30452 1 HE 1353-1917 2025:134:13:09:06.998 11.8 HRC-I NONE 209.1441 -19.5129 270.00 159.07 104.58 dss pspc rass 601605 30870 0 NGC4248 2025:134:17:01:07.733 7.2 ACIS-I NONE 184.4611 47.4268 224.99 101.60 85.71 dss pspc rass ---- 42416 CAL-ER (CAL01) 2025:134:19:33:04.190 3.0 -- -- 229.0000 -13.0000 202.74 173.77 72.53 ---- 42415 CAL-ER (CAL01) 2025:134:21:02:50.752 3.0 -- -- 228.8683 -21.0817 311.74 176.53 109.24 ---- 42414 CAL-ER (CAL01) 2025:134:22:32:52.720 3.0 -- -- 88.0000 -39.0000 217.55 67.04 110.40 705120 28795 0 [ZCA2021] BOSS1244 S 2025:135:04:49:44.588 40.0 ACIS-I NONE 190.8721 35.9180 222.41 112.90 120.62 dss pspc rass 705304 30927 1 HE 1353-1917 2025:135:16:38:49.588 13.0 HRC-I NONE 209.1442 -19.5132 270.00 158.05 75.52 dss pspc rass 802201 30373 0 Abell 795 2025:135:20:47:55.120 20.0 ACIS-S NONE 141.0129 14.1719 251.93 84.01 76.16 dss pspc rass 705227 30211 0 NGC5728 2025:136:02:55:34.009 15.5 ACIS-S NONE 220.5952 -17.2305 259.45 168.24 84.67 dss pspc rass 601602 30752 0 UGC7242 2025:136:07:52:42.793 10.0 ACIS-I NONE 183.5506 66.0964 215.99 87.15 104.91 dss pspc rass 802201 30720 0 Abell 795 2025:136:11:08:03.291 12.0 ACIS-S NONE 141.0128 14.1731 251.92 83.42 59.29 dss pspc rass 705227 30924 0 NGC5728 2025:136:15:02:21.997 14.8 ACIS-S NONE 220.5950 -17.2293 259.13 167.75 84.65 dss pspc rass 901877 P1 29903 0 IGR J17303-2750 2025:136:20:01:12.319 5.0 ACIS-I NONE 262.6005 -27.8566 82.00 152.06 166.90 dss pspc rass 201666 28742 1 G29-38 2025:136:22:06:57.319 14.5 HRC-I NONE 352.2137 5.2338 109.05 61.32 92.17 dss pspc rass 802154 28797 0 A1550 2025:137:02:52:39.233 15.0 ACIS-I NONE 187.2310 47.6420 222.01 101.15 128.39 dss pspc rass 705227 30925 0 NGC5728 2025:137:07:36:48.768 12.0 ACIS-S NONE 220.5949 -17.2278 258.67 167.08 83.89 dss pspc rass ---- 42413 CAL-ER (CAL01) 2025:137:11:21:37.636 3.0 -- -- 229.0000 -13.0000 217.34 171.94 44.43 ---- 42412 CAL-ER (CAL01) 2025:137:12:52:33.605 3.0 -- -- 119.0890 34.7396 267.04 58.78 114.45 ---- 42411 CAL-ER (PER06) 2025:137:14:33:51.815 3.0 -- -- 335.0000 -7.0000 110.73 82.33 161.12 ---- 42410 CAL-ER (CAL01) 2025:137:17:05:00.000 3.1 -- -- 335.0000 -7.0000 110.74 82.41 0.01 ---- 42409 CAL-ER (CAL01) 2025:137:18:04:30.000 2.8 -- -- 335.1949 -7.0871 110.78 82.30 0.21 ---- 42408 CAL-ER (PER08) 2025:137:19:18:29.708 0.0 -- -- 270.0592 28.6429 140.23 120.91 73.48 705300 P1 30012 0 GAMA593724 2025:137:19:53:42.118 17.0 ACIS-S NONE 217.5703 -0.1492 219.74 154.57 84.97 dss pspc rass 503504 28776 0 NGC 4449 2025:138:01:19:27.118 12.0 HRC-I NONE 187.0581 44.1134 219.99 102.95 53.27 dss pspc rass 802201 30734 0 Abell 795 2025:138:05:07:00.000 16.1 ACIS-S NONE 141.0126 14.1747 251.88 81.75 49.75 dss pspc rass 705227 30926 0 NGC5728 2025:138:10:09:38.280 16.5 ACIS-S NONE 220.5952 -17.2284 258.27 166.05 84.62 dss pspc rass 705120 28848 0 [ZCA2021] BOSS1244 S 2025:138:15:15:50.838 31.5 ACIS-I NONE 190.8722 35.9185 224.74 110.38 70.69 dss pspc rass
Previous weeks' short-term schedules.
Last modified: 05/16/25
