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.

MAY2526A

Seq # NB ObsID Constr. Target Start Time SI Grat Active Chips RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ ------------- 402541 29759 0 1eRASS J112950.4+354 2026:144:22:27:07.058 2.2 ACIS-S NONE S2,S3,S4 172.4600 35.7844 240.94 93.72 88.21 dss pspc rass 705322 30269 0 Center of COSMOS-Web 2026:144:23:29:04.058 27.6 ACIS-I NONE I0,I1,I2,I3 149.8249 2.0579 249.24 87.75 39.73 dss pspc rass ---- 41465 CAL-ER (PER01) 2026:145:07:45:22.986 3.0 -- -- 239.0000 -21.0000 271.87 177.40 90.04 ---- 41464 CAL-ER (PER03) 2026:145:11:00:00.000 3.0 -- -- 104.0000 -4.0000 237.13 48.20 130.21 ---- 41463 CAL-ER (PER02) 2026:145:14:00:00.000 3.0 -- -- 205.0000 -35.0000 283.48 144.68 96.66 ---- 41462 CAL-ER (CAL01) 2026:145:15:40:00.000 1.0 -- -- 104.0000 -4.0000 237.00 48.07 96.66 ---- 41461 CAL-ER (PER04) 2026:145:17:30:00.000 1.0 -- -- 13.9000 6.3000 112.41 48.91 143.33 503537 30131 0 SNR G1.9+0.3 2026:145:18:38:08.813 15.0 ACIS-S NONE S2,S3 267.1875 -27.1667 80.14 156.39 107.76 dss pspc rass 590786 31374 2 E0102-72.3 2026:145:23:21:21.050 22.0 ACIS-S NONE S2,S3 16.0100 -72.0320 136.87 98.15 79.67 dss pspc rass 503537 32360 0 SNR G1.9+0.3 2026:146:06:01:11.748 13.0 ACIS-S NONE S2,S3 267.1875 -27.1667 79.88 156.85 79.55 dss pspc rass 590787 31375 2 E0102-72.3 2026:146:10:11:04.923 19.8 ACIS-S NONE S2,S3 16.0100 -72.0320 136.45 98.32 79.74 dss pspc rass 802206 30417 0 Abell 3558 SE 2026:146:16:15:49.871 10.0 ACIS-I NONE I0,I1,I2,I3 202.1263 -31.5904 275.78 142.01 88.20 dss pspc rass 291834 32347 1 HZ 43 2026:146:19:46:53.871 8.0 HRC-S LETG 199.0898 29.0980 225.44 114.14 77.29 dss pspc rass 802206 32364 0 Abell 3558 SE 2026:146:22:32:24.606 10.0 ACIS-I NONE I0,I1,I2,I3 202.1263 -31.5904 275.54 141.80 77.16 dss pspc rass 201812 30097 0 [MWE2019] 1-435 2026:147:01:46:35.583 29.0 ACIS-I NONE I0,I1,I2,I3 134.9917 -43.9194 242.21 92.09 54.07 dss pspc rass 802207 30430 0 Abell 2255 2026:147:10:37:15.643 10.0 ACIS-I NONE I0,I1,I2,I3 258.2085 64.0529 166.64 93.98 143.25 dss pspc rass 901871 30437 0 PG 1553+113 2026:147:13:51:42.340 30.9 ACIS-I NONE I0,I1,I2,I3 238.9292 11.1901 188.80 147.16 55.25 dss pspc rass ---- 41460 CAL-ER (PER05) 2026:147:22:40:29.699 3.0 -- -- 240.2000 11.8500 187.16 146.55 1.97 ---- 41459 CAL-ER (CAL01) 2026:148:01:00:00.000 3.0 -- -- 13.0000 47.0000 76.48 48.58 108.06 ---- 41458 CAL-ER (PER06) 2026:148:03:00:00.000 2.0 -- -- 249.1000 -18.5000 125.09 174.88 126.53 ---- 41457 CAL-ER (PER07) 2026:148:04:50:00.000 1.0 -- -- 242.0000 -23.0000 302.34 177.05 179.78 ---- 41456 CAL-ER (CAL01) 2026:148:06:00:00.000 3.0 -- -- 135.4000 -8.6000 245.15 75.53 102.62 ---- 41455 CAL-ER (CAL01) 2026:148:08:00:00.000 3.0 -- -- 105.0000 -6.0000 233.96 48.01 31.09 705227 30202 0 NGC5728 2026:148:11:09:44.207 10.0 ACIS-S NONE S2,S3 220.5995 -17.2531 255.73 156.69 112.86 dss pspc rass 802203 30398 0 ZwCl 0857.9+2107 2026:148:14:32:30.793 15.0 ACIS-S NONE S1,S2,S3,S4 135.1535 20.8945 246.00 64.74 92.74 dss pspc rass 705227 32361 0 NGC5728 2026:148:19:18:37.362 10.0 ACIS-S NONE S2,S3 220.5995 -17.2531 255.73 156.36 92.74 dss pspc rass 802203 32363 0 ZwCl 0857.9+2107 2026:148:22:41:23.934 15.0 ACIS-S NONE S1,S2,S3,S4 135.1535 20.8945 246.00 64.41 92.74 dss pspc rass 705227 32362 0 NGC5728 2026:149:03:27:30.457 10.0 ACIS-S NONE S2,S3 220.5995 -17.2531 255.70 156.02 92.74 dss pspc rass 601670 29860 0 Leo A 2026:149:06:48:43.765 20.0 ACIS-S NONE S2,S3 149.8603 30.7464 243.00 74.33 85.75 dss pspc rass 802206 32365 0 Abell 3558 SE 2026:149:12:56:15.836 13.0 ACIS-I NONE I0,I1,I2,I3 202.1263 -31.5904 273.34 139.73 84.16 dss pspc rass 601653 30170 0 NGC4540 2026:149:17:02:35.868 29.0 ACIS-S NONE I3,S2,S3,S4 188.7118 15.5513 229.00 112.48 63.75 dss pspc rass 201854 31523 0 V444 Cyg 2026:150:01:44:11.331 32.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 304.8851 38.7317 126.87 98.63 102.41 dss pspc rass 503561 30952 0 Kepler's SNR 2026:150:11:11:05.456 10.0 ACIS-S NONE I2,I3,S2,S3 262.6730 -21.4917 93.92 165.42 81.31 dss pspc rass ---- 41454 CAL-ER (PER08) 2026:150:14:38:45.018 3.0 -- -- 16.5000 13.8000 107.00 48.67 116.89 ---- 41453 CAL-ER (PER11) 2026:150:16:40:00.000 2.0 -- -- 252.5000 -21.0700 99.19 175.04 126.43 ---- 41452 CAL-ER (PER09) 2026:150:18:15:00.000 2.0 -- -- 325.9000 14.0000 113.97 95.05 80.56 ---- 41451 CAL-ER (PER10) 2026:150:20:00:00.000 3.0 -- -- 145.0000 9.0000 249.68 75.27 159.06 ---- 41450 CAL-ER (PER12) 2026:150:23:15:00.000 3.0 -- -- 241.0000 -20.0000 252.16 173.68 99.04 601670 32359 0 Leo A 2026:151:02:01:06.115 19.0 ACIS-S NONE S2,S3 149.8603 30.7464 243.00 72.70 102.62 dss pspc rass 802207 32366 0 Abell 2255 2026:151:07:49:25.578 20.0 ACIS-I NONE I0,I1,I2,I3 258.2085 64.0529 170.33 93.72 72.71 dss pspc rass 201854 31522 0 V444 Cyg 2026:151:13:53:30.742 31.0 ACIS-S HETG S1,S2,S3,S4 304.8851 38.7317 128.07 99.41 37.41 dss pspc rass

MAY1826A

Seq # NB ObsID Constr. Target Start Time SI Grat Active Chips RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ ------------- ---- 41480 CAL-ER (PER01) 2026:137:10:39:03.758 3.0 -- -- 245.0000 -21.7000 78.97 169.32 110.21 ---- 41479 CAL-ER (PER02) 2026:137:14:00:00.000 3.0 -- -- 4.3700 -14.7450 123.49 59.56 110.70 ---- 41478 CAL-ER (CAL01) 2026:137:17:00:00.000 3.2 -- -- 245.0000 -21.7000 78.97 169.54 110.70 ---- 41477 CAL-ER (CAL01) 2026:137:18:33:32.604 0.9 -- -- 5.0000 -14.4000 127.00 59.01 111.20 802203 30394 0 ZwCl 0857.9+2107 2026:137:20:00:35.519 15.0 ACIS-S NONE S1,S2,S3 135.1535 20.8945 248.00 75.07 162.42 dss pspc rass 705227 30191 0 NGC5728 2026:138:00:46:43.255 14.0 ACIS-S NONE S2,S3 220.5995 -17.2531 258.49 166.68 92.83 dss pspc rass 802203 32355 0 ZwCl 0857.9+2107 2026:138:05:16:03.022 15.0 ACIS-S NONE S1,S2,S3 135.1535 20.8945 254.66 74.70 92.23 dss pspc rass 705227 32352 0 NGC5728 2026:138:10:02:02.691 12.0 ACIS-S NONE S2,S3 220.5995 -17.2531 258.38 166.30 92.23 dss pspc rass 802203 31883 0 ZwCl 0857.9+2107 2026:138:13:58:02.334 10.0 ACIS-S NONE S1,S2,S3 135.1535 20.8945 254.69 74.34 92.22 dss pspc rass 705227 32353 0 NGC5728 2026:138:17:20:41.879 12.0 ACIS-S NONE S2,S3 220.5995 -17.2531 258.26 166.00 92.22 dss pspc rass 705311 30247 0 Center of COSMOS-Web 2026:138:21:12:11.420 29.6 ACIS-I NONE I0,I1,I2,I3 150.2920 2.1718 250.21 93.94 71.97 dss pspc rass 705227 30206 0 NGC5728 2026:139:05:56:45.071 14.0 ACIS-S NONE S2,S3 220.5995 -17.2531 258.03 165.49 71.97 dss pspc rass 601689 29879 0 SDSS J155636.40+4152 2026:139:10:26:47.814 48.0 ACIS-S NONE I2,S1,S2,S3 239.1517 41.8807 176.49 118.34 95.46 dss pspc rass ---- 41476 CAL-ER (PER03) 2026:140:00:16:52.167 3.0 -- -- 239.0000 -15.9000 148.76 175.36 63.60 ---- 41475 CAL-ER (PER05) 2026:140:01:50:27.903 3.0 -- -- 232.6930 -20.1030 273.12 176.41 126.43 ---- 41474 CAL-ER (PER04) 2026:140:03:15:33.436 3.0 -- -- 148.1000 7.6000 250.09 88.86 88.17 ---- 41473 CAL-ER (CAL01) 2026:140:08:30:00.000 3.0 -- -- 232.6930 -20.1030 271.98 176.18 88.05 ---- 41472 CAL-ER (CAL01) 2026:140:10:02:23.661 0.9 -- -- 239.0000 -15.9000 153.04 175.47 121.02 201810 30086 0 TV Cassiopeia 2026:140:12:55:29.041 21.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 4.8281 59.1390 66.65 53.91 121.62 dss pspc rass 590807 31395 1 SNR G21.5-0.9 2026:140:19:27:54.041 10.0 HRC-I NONE 278.3896 -10.5685 105.00 139.29 97.80 dss pspc rass 590784 31372 2 E0102-72.3 2026:140:22:49:46.570 25.0 ACIS-I NONE I3 16.0100 -72.0320 151.07 96.17 88.69 dss pspc rass 705227 32354 0 NGC5728 2026:141:06:28:52.361 14.6 ACIS-S NONE S2,S3 220.5995 -17.2531 269.00 163.56 121.18 dss pspc rass 590785 31373 2 E0102-72.3 2026:141:11:14:37.863 15.0 ACIS-S NONE S2,S3 16.0100 -72.0320 151.12 96.38 121.16 dss pspc rass 590789 31377 2 E0102-72.3 2026:141:15:39:52.863 35.0 ACIS-I NONE I3 16.0100 -72.0320 140.55 96.45 10.27 dss pspc rass 300579 CCT 32349 0 MASTER J1449-3244 2026:142:01:57:31.731 16.5 ACIS-S NONE S2,S3,S4 222.3625 -32.7352 306.85 160.93 84.67 dss pspc rass 705328 30511 0 BOSS1348 2026:142:07:10:45.538 31.7 ACIS-I NONE I0,I1,I2,I3 207.0600 23.9800 217.51 126.02 102.29 dss pspc rass ---- 41471 CAL-ER (PER06) 2026:142:16:24:43.221 3.0 -- -- 235.9750 -16.1700 214.76 174.83 49.10 ---- 41470 CAL-ER (PER08) 2026:142:17:57:08.409 3.0 -- -- 236.4500 -26.1500 335.83 173.74 121.14 ---- 41469 CAL-ER (PER07) 2026:142:19:27:41.571 3.0 -- -- 81.5600 -36.8380 204.01 61.02 112.74 ---- 41468 CAL-ER (CAL01) 2026:142:23:40:00.000 3.0 -- -- 236.3810 -25.2280 329.21 174.48 113.75 ---- 41467 CAL-ER (CAL01) 2026:143:01:17:41.830 0.9 -- -- 239.0000 -15.9000 185.37 175.42 144.89 201810 32351 0 TV Cassiopeia 2026:143:03:13:18.743 10.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 4.8281 59.1390 66.00 54.69 124.54 dss pspc rass 601721 TOO 31222 1 TDE2023mfm 2026:143:06:31:53.829 50.0 ACIS-S NONE I3,S2,S3,S4 324.3665 -4.3453 110.16 96.48 73.88 dss pspc rass ---- 41466 CAL-ER (IAT02) 2026:143:20:59:18.317 0.9 -- -- 46.8380 -70.0800 167.41 91.17 83.59 201917 CCT 32350 0 2RXS J155154.5-26220 2026:143:21:50:21.769 20.0 ACIS-S NONE S2,S3 237.9766 -26.3682 324.99 173.83 89.43 dss pspc rass 705429 P1 31282 0 SDSS J094314.26+1023 2026:144:04:04:16.694 20.0 ACIS-S NONE S1,S2,S3,S4 145.8094 10.3968 240.00 81.91 112.87 dss pspc rass 601649 30166 0 NGC4293 2026:144:10:02:53.694 30.0 ACIS-S NONE I3,S2,S3,S4 185.3040 18.3830 240.00 112.99 40.25 dss pspc rass 705540 CCT 32348 0 2MASX J16125120-0521 2026:144:18:57:00.871 10.5 ACIS-S NONE S1,S2,S3,S4 243.2134 -5.3548 173.03 164.46 83.79 dss pspc rass

Last modified: 05/22/26

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