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.

APR2026A

Seq # NB ObsID Constr. Target Start Time SI Grat Active Chips RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ ------------- 503704 DDT 32306 1 GRB260310A 2026:110:02:04:17.948 5.0 ACIS-S NONE S2,S3,S4 219.3173 71.8418 168.38 96.47 71.69 dss pspc rass 890280 31419 2 Abell 2319 2026:110:03:54:54.948 20.0 ACIS-I NONE I0,I1,I2,I3,S2 290.3084 43.9493 103.25 87.36 42.86 dss pspc rass 601688 29878 0 SDSS J141525.26+0456 2026:110:10:01:14.987 15.9 ACIS-S NONE I2,S1,S2,S3 213.8553 4.9340 160.22 162.59 78.75 dss pspc rass 601690 29880 0 SDSS J091934.51+4816 2026:110:15:01:32.145 23.0 ACIS-S NONE I2,S1,S2,S3 139.8939 48.2708 246.06 95.33 86.71 dss pspc rass ---- 41541 CAL-ER (PER01) 2026:110:21:59:08.278 3.0 -- -- 207.5740 -7.4340 190.64 175.73 84.46 ---- 41540 CAL-ER (PER03) 2026:110:23:30:40.972 3.0 -- -- 219.5603 -14.5696 76.25 168.78 117.20 ---- 41539 CAL-ER (PER02) 2026:111:03:00:00.000 3.0 -- -- 337.6610 -10.1000 112.07 55.08 113.91 ---- 41538 CAL-ER (CAL01) 2026:111:06:15:00.000 0.9 -- -- 216.3300 -13.4700 77.86 172.32 117.28 ---- 41537 CAL-ER (PER04) 2026:111:07:19:38.836 0.9 -- -- 201.9380 -13.5080 284.13 173.17 150.59 705275 31864 0 NGC 2110 2026:111:08:32:00.548 14.0 ACIS-S HETG S2,S3 88.0474 -7.4563 252.41 62.01 111.12 dss pspc rass 601661 30180 0 NGC4941 2026:111:13:04:42.584 12.0 ACIS-S NONE I3,S2,S3,S4 196.0547 -5.5516 259.00 165.80 107.40 dss pspc rass 802208 30026 0 DESI J090.9854-35.96 2026:111:17:03:03.597 20.0 ACIS-I NONE I0,I1,I2,I3,S3 90.9854 -35.9683 240.99 75.35 102.83 dss pspc rass 601673 29863 0 AM1724-622 2026:111:23:09:59.542 46.6 ACIS-S NONE I3,S2,S3,S4 262.3229 -62.4636 54.99 117.12 81.45 dss pspc rass 601690 32311 0 SDSS J091934.51+4816 2026:112:12:58:40.197 23.0 ACIS-S NONE I2,S1,S2,S3 139.8939 48.2708 247.04 93.74 164.30 dss pspc rass 601688 32309 0 SDSS J141525.26+0456 2026:112:19:56:07.785 15.0 ACIS-S NONE I2,S1,S2,S3 213.8553 4.9340 168.04 162.43 83.82 dss pspc rass 901896 P1 31516 0 Cyg X-2 2026:113:00:48:32.785 13.8 HRC-I HETG 326.1715 38.3214 83.76 62.22 106.13 dss pspc rass 601688 32310 0 SDSS J141525.26+0456 2026:113:05:17:40.666 10.0 ACIS-S NONE I2,S1,S2,S3 213.8553 4.9340 169.28 162.36 106.34 dss pspc rass 790398 31399 3 MKN421 2026:113:08:34:41.946 10.3 ACIS-S LETG S1,S2,S3,S4,S5 166.1133 38.2088 228.77 114.42 66.85 dss pspc rass ---- 41536 CAL-ER (CAL01) 2026:113:12:00:28.231 3.0 -- -- 206.1178 -12.7210 272.30 175.43 81.10 ---- 41535 CAL-ER (CAL01) 2026:113:13:03:54.062 3.0 -- -- 205.5000 -13.4000 279.07 174.72 6.96 ---- 41534 CAL-ER (PER05) 2026:113:18:00:00.000 3.0 -- -- 102.0000 -33.0000 248.90 81.49 95.94 ---- 41533 CAL-ER (CAL01) 2026:113:21:59:00.000 0.9 -- -- 207.0000 -15.0000 299.90 175.33 94.06 802208 32312 0 DESI J090.9854-35.96 2026:113:23:40:09.953 19.0 ACIS-I NONE I0,I1,I2,I3,S3 90.9854 -35.9683 239.99 74.37 101.39 dss pspc rass 802206 30024 0 Abell 3558 SE 2026:114:05:31:49.275 13.0 ACIS-I NONE I0,I1,I2,I3 202.1263 -31.5904 333.41 159.25 87.70 dss pspc rass 802208 32313 0 DESI J090.9854-35.96 2026:114:09:43:32.562 18.0 ACIS-I NONE I0,I1,I2,I3,S3 90.9854 -35.9683 237.99 74.16 88.00 dss pspc rass 790398 31734 3 MKN421 2026:114:15:21:38.915 39.7 ACIS-S LETG S1,S2,S3,S4,S5 166.1133 38.2088 229.51 113.39 101.73 dss pspc rass 705538 CCT 32307 0 SDSSJ082015.61+59422 2026:115:02:49:03.079 10.0 ACIS-S NONE S2,S3 125.0650 59.7079 253.00 80.17 34.64 dss pspc rass 601661 32314 0 NGC4941 2026:115:06:11:19.245 10.0 ACIS-S NONE I3,S2,S3,S4 196.0547 -5.5516 244.00 162.17 90.46 dss pspc rass 402613 P1 31083 0 NVSS J081604-235003 2026:115:09:30:58.469 17.0 ACIS-S NONE S2,S3 124.0183 -23.8346 258.54 96.52 78.69 dss pspc rass 601661 32315 0 NGC4941 2026:115:14:47:17.427 10.0 ACIS-S NONE I3,S2,S3,S4 196.0547 -5.5516 244.05 161.81 78.67 dss pspc rass 291762 29530 2 HZ43 2026:115:18:16:22.427 2.0 HRC-I LETG 199.0898 29.0980 195.99 135.61 58.20 dss pspc rass 601677 29867 0 AM1006-380 2026:115:19:30:12.121 26.1 ACIS-S NONE I3,S2,S3,S4 152.2792 -38.4011 277.78 121.03 112.48 dss pspc rass ---- 41532 CAL-ER (CAL01) 2026:116:03:13:53.139 5.0 -- -- 205.5000 -13.4000 269.40 172.43 62.21 ---- 41531 CAL-ER (PER07) 2026:116:07:00:00.000 5.0 -- -- 85.5470 -18.2820 242.03 60.38 114.41 ---- 41530 CAL-ER (PER06) 2026:116:10:30:00.000 3.0 -- -- 154.8000 -4.1000 256.71 121.33 69.03 ---- 41529 CAL-ER (CAL01) 2026:116:13:00:00.000 3.0 -- -- 104.0870 -26.8159 247.00 79.34 53.64 601677 32308 0 AM1006-380 2026:116:16:00:48.912 22.0 ACIS-S NONE I3,S2,S3,S4 152.2792 -38.4011 277.01 120.60 41.79 dss pspc rass 802206 32316 0 Abell 3558 SE 2026:116:22:33:00.341 10.0 ACIS-I NONE I0,I1,I2,I3 202.1263 -31.5904 326.07 158.95 44.99 dss pspc rass

APR1326A

Seq # NB ObsID Constr. Target Start Time SI Grat Active Chips RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ ------------- ---- 41557 CAL-ER (PER04) 2026:103:01:01:53.983 3.0 -- -- 195.3619 -13.2387 307.50 172.88 78.30 ---- 41556 CAL-ER (PER01) 2026:103:06:00:00.000 3.0 -- -- 87.0000 -45.7000 246.13 80.09 93.25 ---- 41555 CAL-ER (PER05) 2026:103:08:30:00.000 2.0 -- -- 337.9000 -69.4000 136.93 83.87 54.46 705458 TOO 31311 1 LEDA 184063 2026:103:10:07:11.695 11.0 ACIS-S NONE S2,S3 206.1373 -22.9671 18.66 165.27 81.42 dss pspc rass 601674 29864 0 AM0425-421 2026:103:13:50:51.590 11.0 ACIS-S NONE I3,S2,S3,S4 66.6700 -42.0942 221.01 65.66 111.74 dss pspc rass 705458 TOO 32301 1 LEDA 184063 2026:103:17:34:27.604 12.2 ACIS-S NONE S2,S3 206.1373 -22.9671 17.63 165.45 111.45 dss pspc rass 705483 P1 31448 0 PGC3321235 2026:103:21:33:55.866 5.0 ACIS-S NONE S2,S3 332.5453 -56.0748 129.79 76.83 89.12 dss pspc rass 503622 TOO 31144 3 SN2026hkg 2026:103:23:25:04.239 15.0 ACIS-S NONE S1,S2,S3,S4 135.9005 -67.9704 289.03 107.32 55.38 dss pspc rass 790399 31737 3 MKN421 2026:104:04:18:41.601 27.8 ACIS-S LETG S1,S2,S3,S4 166.1133 38.2088 223.07 121.88 126.55 dss pspc rass 601687 29877 0 SDSS J123733.69+0852 2026:104:12:28:20.765 11.5 ACIS-S NONE S2,S3 189.3905 8.8822 215.82 157.60 36.12 dss pspc rass 201810 29741 0 TV Cassiopeia 2026:104:16:20:45.471 11.0 ACIS-S HETG S1,S2,S3,S4 4.8281 59.1390 19.03 51.52 113.60 dss pspc rass 705406 31259 2 M 87 2026:104:20:03:58.735 5.0 ACIS-S NONE S2,S3 187.7059 12.3911 214.98 153.52 109.74 dss pspc rass ---- 41554 CAL-ER (IAT01) 2026:104:21:54:17.302 0.0 -- -- 135.6391 -9.1400 263.59 113.82 71.89 601674 32295 0 AM0425-421 2026:104:22:25:24.791 10.0 ACIS-S NONE I3,S2,S3,S4 66.6700 -42.0942 221.01 65.33 68.74 dss pspc rass 705458 TOO 32302 1 LEDA 184063 2026:105:01:52:04.745 12.2 ACIS-S NONE S2,S3 206.1373 -22.9671 13.15 166.24 110.25 dss pspc rass 705308 30240 0 Center of COSMOS-Web 2026:105:05:59:47.799 25.2 ACIS-I NONE I0,I1,I2,I3 150.2124 2.3427 245.00 125.95 126.23 dss pspc rass ---- 41553 CAL-ER (PER06) 2026:105:13:32:37.919 3.0 -- -- 191.7469 -22.0335 315.83 163.39 77.50 ---- 41552 CAL-ER (PER08) 2026:105:14:58:10.452 2.0 -- -- 85.4906 -34.5678 245.21 73.49 90.19 ---- 41551 CAL-ER (CAL01) 2026:105:16:07:02.766 3.0 -- -- 191.7469 -22.0335 315.49 163.36 90.17 ---- 41550 CAL-ER (PER02) 2026:105:20:00:00.000 3.0 -- -- 77.3000 -51.1000 234.71 76.51 87.27 ---- 41549 CAL-ER (PER07) 2026:105:23:00:00.000 3.0 -- -- 43.1218 -38.4253 204.67 51.60 27.58 705458 TOO 32303 1 LEDA 184063 2026:106:01:03:13.519 12.2 ACIS-S NONE S2,S3 206.1373 -22.9671 9.93 166.75 117.39 dss pspc rass ---- 41548 CAL-ER (IAT02) 2026:106:04:59:41.041 0.0 -- -- 263.7435 -0.4070 101.26 119.81 95.81 890281 31420 2 Abell 2319 2026:106:05:26:42.989 20.0 ACIS-S NONE I2,I3,S1,S2,S3 290.3084 43.9493 88.99 85.71 50.32 dss pspc rass ---- 41547 CAL-ER (CAL01) 2026:106:11:22:13.983 0.0 -- -- 263.7435 -0.4069 101.39 120.05 50.32 705458 TOO 32304 1 LEDA 184063 2026:106:11:59:41.631 11.2 ACIS-S NONE S2,S3 206.1373 -22.9671 8.11 166.95 97.25 dss pspc rass ---- 41546 CAL-ER (IAT03) 2026:106:15:48:14.474 0.9 -- -- 350.3947 -33.4568 137.28 54.26 114.96 201810 32293 0 TV Cassiopeia 2026:106:16:49:24.574 11.5 ACIS-S HETG S1,S2,S3,S4 4.8281 59.1390 20.53 51.20 134.93 dss pspc rass 601722 31223 1 NGC 6099 2026:106:20:36:06.924 25.0 ACIS-S NONE S2,S3 243.8925 19.4521 123.96 131.25 87.93 dss pspc rass ---- 41545 CAL-ER (IAT04) 2026:107:03:53:51.401 0.0 -- -- 210.7675 24.0341 169.84 145.20 45.22 503579 30543 0 SN 2012au 2026:107:04:33:37.401 7.5 HRC-I NONE 193.7174 -10.2473 268.64 168.97 102.11 dss pspc rass ---- 41544 CAL-ER (CAL01) 2026:107:07:08:01.743 0.0 -- -- 178.3000 44.7000 210.68 119.89 82.83 201810 32294 0 TV Cassiopeia 2026:107:07:40:47.536 10.5 ACIS-S HETG S1,S2,S3,S4 4.8281 59.1390 25.94 51.11 76.11 dss pspc rass 601722 32300 1 NGC 6099 2026:107:11:10:49.164 25.0 ACIS-S NONE S2,S3 243.8925 19.4521 124.66 131.56 87.87 dss pspc rass 705313 30250 0 Center of COSMOS-Web 2026:107:18:52:22.967 30.0 ACIS-I NONE I0,I1,I2,I3 150.0415 2.2630 255.81 123.37 132.29 dss pspc rass 601687 32297 0 SDSS J123733.69+0852 2026:108:03:39:03.973 10.8 ACIS-S NONE S2,S3 189.3905 8.8822 220.23 154.52 50.33 dss pspc rass ---- 41543 CAL-ER (PER09) 2026:108:07:15:10.421 3.0 -- -- 191.0836 -22.1947 306.50 161.73 90.48 ---- 41542 CAL-ER (PER03) 2026:108:12:20:00.000 3.0 -- -- 75.6065 -49.7268 230.85 74.37 88.87 705458 TOO 32305 1 LEDA 184063 2026:108:16:46:44.431 11.2 ACIS-S NONE S2,S3 206.1373 -22.9671 359.22 167.87 97.10 dss pspc rass 601674 32296 0 AM0425-421 2026:108:20:33:34.405 10.0 ACIS-S NONE I3,S2,S3,S4 66.6700 -42.0942 221.01 64.55 107.25 dss pspc rass 705317 30259 0 Center of COSMOS-Web 2026:108:23:54:57.706 27.3 ACIS-I NONE I0,I1,I2,I3 149.9958 2.1376 255.63 122.23 86.50 dss pspc rass 503579 32299 0 SN 2012au 2026:109:08:12:22.706 7.5 HRC-I NONE 193.7174 -10.2473 265.18 167.01 45.66 dss pspc rass 705316 30257 0 Center of COSMOS-Web 2026:109:10:43:01.367 28.2 ACIS-I NONE I0,I1,I2,I3 150.1211 2.0920 255.55 121.91 45.54 dss pspc rass 705537 CCT 32292 0 2MASX J07042579+4214 2026:109:19:01:24.502 10.0 ACIS-S NONE S1,S2,S3,S4 106.1073 42.2370 259.00 74.21 57.99 dss pspc rass 601687 32298 0 SDSS J123733.69+0852 2026:109:22:21:12.128 11.5 ACIS-S NONE S2,S3 189.3905 8.8822 222.11 152.99 79.32 dss pspc rass

Last modified: 04/17/26

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