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.
Seq # NB ObsID Constr. Target Start Time SI Grat Active Chips RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ ------------- ---- 41613 CAL-ER (PER01) 2026:081:21:36:52.413 3.0 -- -- 184.0860 -6.5299 21.93 173.78 168.18 ---- 41612 CAL-ER (PER02) 2026:081:23:08:51.392 3.0 -- -- 24.1170 -54.5400 206.48 58.29 119.17 ---- 41611 CAL-ER (CAL01) 2026:082:03:25:00.000 0.9 -- -- 181.8300 -5.4868 358.41 175.36 117.50 ---- 41610 CAL-ER (PER03) 2026:082:04:31:50.330 0.9 -- -- 180.6490 3.5800 198.00 175.36 160.45 802197 30323 0 Perseus cluster N 2026:082:06:38:55.140 18.1 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.5897 293.02 59.19 116.84 dss pspc rass ---- 41609 CAL-ER (IAT01) 2026:082:12:03:25.036 0.0 -- -- 140.8719 68.8158 223.18 104.78 53.24 601656 32162 0 NGC4654 2026:082:12:35:28.633 11.5 ACIS-S NONE I3,S2,S3,S4 190.9859 13.1265 148.00 163.48 72.94 dss pspc rass ---- 41608 CAL-ER (CAL01) 2026:082:16:14:22.142 0.0 -- -- 140.8719 68.8158 223.33 104.68 73.01 802197 32247 0 Perseus cluster N 2026:082:16:42:03.445 15.0 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.5897 293.02 58.82 53.27 dss pspc rass ---- 41607 CAL-ER (CAL01) 2026:082:21:14:54.235 0.0 -- -- 140.8719 68.8158 223.51 104.55 53.31 601656 32250 0 NGC4654 2026:082:21:46:51.647 10.1 ACIS-S NONE I3,S2,S3,S4 190.9859 13.1265 149.37 163.54 72.48 dss pspc rass ---- 41606 CAL-ER (CAL01) 2026:083:01:02:18.842 0.0 -- -- 140.8719 68.8158 223.64 104.46 72.54 802197 30324 0 Perseus cluster N 2026:083:01:30:01.000 14.2 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.5897 293.02 58.49 53.34 dss pspc rass 705319 32189 0 Center of COSMOS-Web 2026:083:06:04:11.812 10.4 ACIS-I NONE I0,I1,I2,I3 150.2007 1.9212 269.00 147.02 99.06 dss pspc rass 503601 31551 2 SNR 1987A 2026:083:09:32:54.024 29.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 83.8667 -69.2697 256.00 87.95 89.42 dss pspc rass 503537 29822 0 SNR G1.9+0.3 2026:083:18:10:18.820 20.0 ACIS-S NONE I2,I3,S2,S3 267.1875 -27.1667 84.00 96.26 83.61 dss pspc rass 705277 29989 0 NGC 4593 2026:084:00:16:05.510 10.9 ACIS-S HETG S2,S3 189.9144 -5.3442 58.65 172.74 76.25 dss pspc rass 503537 32242 0 SNR G1.9+0.3 2026:084:03:50:13.422 20.0 ACIS-S NONE I2,I3,S2,S3 267.1875 -27.1667 88.41 96.65 76.34 dss pspc rass 201912 CCT 32241 0 2MASS J14142141-1521 2026:084:09:50:22.728 5.3 ACIS-S NONE S2,S3 213.5892 -15.3560 67.76 147.84 50.95 dss pspc rass ---- 41605 CAL-ER (PER04) 2026:084:11:39:12.883 3.0 -- -- 189.9370 -5.6020 56.78 173.05 26.03 ---- 41604 CAL-ER (CAL01) 2026:084:14:30:00.000 3.0 -- -- 313.6290 -22.4600 109.39 54.96 118.25 ---- 41603 CAL-ER (PER09) 2026:084:18:38:50.000 0.0 -- -- 313.6290 -22.4600 109.38 55.11 0.01 ---- 41602 CAL-ER (CAL01) 2026:084:19:30:00.000 0.9 -- -- 189.9110 -5.5960 56.34 173.37 118.29 ---- 41601 CAL-ER (CAL01) 2026:084:20:36:57.485 0.9 -- -- 180.3780 3.4760 217.02 173.26 160.99 503543 29828 2 SN 1986J 2026:084:22:50:22.621 15.0 ACIS-S NONE I2,I3,S2,S3 35.6305 42.3323 316.92 49.04 124.24 dss pspc rass 802269 CCT 32239 0 RMJ120348.7+042043.4 2026:085:03:43:22.238 10.0 ACIS-I NONE I0,I1,I2,I3 180.9529 4.3454 210.76 172.60 123.72 dss pspc rass 802197 32248 0 Perseus cluster N 2026:085:07:11:19.415 18.0 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.5897 295.02 56.52 116.04 dss pspc rass 802270 CCT 32240 0 RMJ120435.1+035723.1 2026:085:12:52:42.381 10.0 ACIS-I NONE I0,I1,I2,I3 181.1464 3.9564 212.90 172.72 116.47 dss pspc rass 802197 30325 0 Perseus cluster N 2026:085:16:20:45.352 17.6 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.5897 295.02 56.17 116.47 dss pspc rass 802207 30025 0 Abell 2255 2026:085:21:46:28.215 19.0 ACIS-I NONE I0,I1,I2,I3 258.2085 64.0529 106.51 95.35 75.96 dss pspc rass ---- 41600 CAL-ER (IAT03) 2026:086:03:21:21.664 0.0 -- -- 242.0000 32.5000 116.00 116.39 33.26 705277 32243 0 NGC 4593 2026:086:03:57:51.440 10.3 ACIS-S HETG S2,S3 189.9144 -5.3442 57.00 174.83 92.91 dss pspc rass ---- 41599 CAL-ER (CAL01) 2026:086:07:20:17.259 0.0 -- -- 235.9943 29.8410 118.00 122.24 88.94 802207 32246 0 Abell 2255 2026:086:07:48:23.423 19.5 ACIS-I NONE I0,I1,I2,I3 258.2085 64.0529 102.97 95.36 37.04 dss pspc rass 601643 31930 0 NGC3137 2026:086:14:03:41.375 12.5 ACIS-S NONE I3,S2,S3,S4 152.2809 -29.0642 292.99 138.38 156.60 dss pspc rass 503628 TOO 31150 3 AT2026dbl 2026:086:18:01:29.579 30.3 ACIS-S NONE S2,S3 135.3224 18.6022 252.45 125.63 62.87 dss pspc rass ---- 41598 CAL-ER (PER05) 2026:087:02:59:41.674 3.0 -- -- 39.0000 46.0000 316.85 51.64 80.96 ---- 41597 CAL-ER (PER06) 2026:087:04:32:08.380 0.9 -- -- 181.2550 2.7690 223.57 172.27 121.25 ---- 41596 CAL-ER (CAL01) 2026:087:05:41:52.423 3.0 -- -- 189.9240 -5.6000 50.34 175.71 173.48 ---- 41595 CAL-ER (PER07) 2026:087:07:06:33.068 3.0 -- -- 277.0000 -23.0000 92.78 90.82 86.30 ---- 41594 CAL-ER (PER08) 2026:087:10:40:00.000 0.2 -- -- 313.6290 -22.4600 109.06 57.73 33.74 ---- 41593 CAL-ER (CAL01) 2026:087:11:25:10.175 0.9 -- -- 189.9240 -5.6000 49.51 175.91 118.51 ---- 41592 CAL-ER (CAL01) 2026:087:12:35:16.784 0.9 -- -- 181.2550 2.7690 224.44 171.99 175.17 802197 32249 0 Perseus cluster N 2026:087:13:34:06.643 15.9 ACIS-I NONE I0,I1,I2,I3 49.9508 41.5897 296.22 54.53 117.80 dss pspc rass ---- 41591 CAL-ER (IAT04) 2026:087:18:42:11.439 0.9 -- -- 180.1470 -1.7580 259.45 172.93 124.11 705277 32244 0 NGC 4593 2026:087:19:46:42.996 9.7 ACIS-S HETG S2,S3 189.9144 -5.3442 49.97 176.41 150.04 dss pspc rass ---- 41590 CAL-ER (IAT05) 2026:087:23:09:25.961 0.9 -- -- 310.0000 -24.0000 107.75 61.90 114.97 802197 30328 0 Perseus cluster N 2026:088:00:16:30.789 16.6 ACIS-I NONE I0,I1,I2,I3 49.9508 41.5897 297.02 54.14 161.54 dss pspc rass 503629 TOO 31151 3 AT2026dbl 2026:088:05:25:15.573 30.0 ACIS-S NONE S2,S3 135.3224 18.6022 252.53 124.19 74.61 dss pspc rass 402642 P1 31343 0 V4641 Sgr S2 2026:088:14:40:39.855 10.0 ACIS-I NONE I0,I1,I2,I3 274.8951 -25.6894 91.73 94.14 179.57 dss pspc rass 705277 32245 0 NGC 4593 2026:088:18:01:44.646 13.1 ACIS-S HETG S2,S3 189.9144 -5.3442 43.82 177.29 85.11 dss pspc rass
Seq # NB ObsID Constr. Target Start Time SI Grat Active Chips RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ ------------- 503552 31957 0 PSR J1459-6053 2026:075:03:11:30.462 10.0 ACIS-I NONE I0,I1,I2,I3 224.8759 -60.8888 58.01 106.69 90.57 dss pspc rass 503576 30479 0 PWN J1631-4721 2026:075:06:25:27.462 38.5 ACIS-S NONE I2,I3,S2,S3,S4 247.9976 -47.3686 70.00 100.46 20.16 dss pspc rass 705404 31257 2 M 87 2026:075:17:45:36.306 5.0 ACIS-S NONE S2,S3 187.7059 12.3911 119.00 164.35 103.41 dss pspc rass 503603 31125 1 PSR J1813-1749 2026:075:19:45:37.357 19.8 ACIS-S NONE S2,S3 273.3966 -17.8327 88.00 82.67 95.33 dss pspc rass 601654 29659 0 NGC4548 2026:076:01:51:35.929 10.0 ACIS-S NONE I3,S2,S3,S4 188.8604 14.4961 124.00 162.19 95.89 dss pspc rass ---- 41637 CAL-ER (PER01) 2026:076:05:07:01.430 0.0 -- -- 151.2161 73.9240 206.47 105.99 79.91 802200 30360 0 Perseus cluster E 2026:076:05:34:48.663 12.2 ACIS-I NONE I0,I1,I2,I3,S2 50.0600 41.5093 294.02 64.62 53.72 dss pspc rass ---- 41636 CAL-ER (PER02) 2026:076:09:23:25.309 0.0 -- -- 157.1000 60.0000 202.72 119.50 62.37 601654 32225 0 NGC4548 2026:076:09:56:02.571 10.2 ACIS-S NONE I3,S2,S3,S4 188.8604 14.4961 124.00 162.28 75.47 dss pspc rass ---- 41635 CAL-ER (PER03) 2026:076:13:21:44.790 3.0 -- -- 168.9752 12.8385 214.97 166.10 87.96 ---- 41634 CAL-ER (PER10) 2026:076:15:00:48.156 1.0 -- -- 177.7175 -7.4566 5.00 171.18 151.00 ---- 41633 CAL-ER (PER11) 2026:076:16:01:08.025 3.0 -- -- 183.9232 7.4255 131.17 170.77 126.74 ---- 41632 CAL-ER (PER04) 2026:076:19:40:30.000 1.0 -- -- 268.0000 40.3000 88.47 90.13 80.70 ---- 41631 CAL-ER (CAL01) 2026:076:20:05:40.000 3.0 -- -- 268.0000 40.3000 88.48 90.13 0.01 ---- 41630 CAL-ER (PER12) 2026:076:22:00:00.000 1.0 -- -- 195.0074 45.7929 155.38 132.76 53.30 ---- 41629 CAL-ER (PER13) 2026:076:22:49:31.789 3.0 -- -- 335.4945 50.1489 27.00 54.63 78.13 802207 30429 0 Abell 2255 2026:077:00:51:39.784 17.4 ACIS-I NONE I0,I1,I2,I3 258.2085 64.0529 91.97 95.03 41.34 dss pspc rass ---- 41628 CAL-ER (IAT01) 2026:077:06:14:50.265 0.9 -- -- 162.0454 26.0776 213.31 150.92 79.54 201880 P1 31066 0 HD 29419 2026:077:07:09:56.265 5.5 HRC-I NONE 69.7137 23.1500 273.00 74.07 82.81 dss pspc rass ---- 41627 CAL-ER (IAT02) 2026:077:09:15:30.134 0.9 -- -- 162.0454 26.0776 213.48 150.82 82.79 590790 31378 2 Cas A 2026:077:10:07:56.912 2.0 ACIS-I NONE I2,I3 350.8575 58.8148 5.93 60.09 95.68 dss pspc rass ---- 41626 CAL-ER (CAL01) 2026:077:11:18:02.867 0.9 -- -- 162.0454 26.0776 213.59 150.75 95.70 590791 31379 1 Cas A 2026:077:12:10:30.481 2.0 ACIS-I NONE I0,I1 350.8575 58.8148 6.15 60.07 95.75 dss pspc rass ---- 41625 CAL-ER (CAL01) 2026:077:13:20:37.274 0.9 -- -- 162.0454 26.0776 213.70 150.68 95.76 590792 31380 1 Cas A 2026:077:14:13:04.400 2.0 ACIS-I NONE I0,I1 350.8575 58.8148 5.93 60.04 95.71 dss pspc rass ---- 41624 CAL-ER (CAL01) 2026:077:15:23:10.701 0.9 -- -- 162.0454 26.0776 213.81 150.61 95.72 590793 31381 1 Cas A 2026:077:16:15:38.666 2.2 ACIS-I NONE I2,I3 350.8575 58.8148 6.15 60.02 95.77 dss pspc rass ---- 41623 CAL-ER (IAT03) 2026:077:17:13:00.501 0.0 -- -- 241.4346 67.9193 114.50 100.54 43.54 601654 32226 0 NGC4548 2026:077:17:44:16.287 10.0 ACIS-S NONE I3,S2,S3,S4 188.8604 14.4961 124.00 162.68 69.36 dss pspc rass ---- 41622 CAL-ER (IAT04) 2026:077:20:57:22.674 0.0 -- -- 243.8933 67.1564 112.20 99.98 69.48 ---- 41621 CAL-ER (IAT05) 2026:077:21:24:15.251 2.8 -- -- 353.1818 52.2592 6.18 53.29 49.62 802200 32233 0 Perseus cluster E 2026:077:22:36:43.631 10.0 ACIS-I NONE I0,I1,I2,I3 50.0600 41.5093 291.01 63.09 50.13 dss pspc rass 601647 29652 0 NGC3626 2026:078:02:00:45.975 10.0 ACIS-S NONE I3,S2,S3,S4 170.0158 18.3568 205.78 160.63 98.43 dss pspc rass 802200 32234 0 Perseus cluster E 2026:078:05:24:48.320 14.5 ACIS-I NONE I0,I1,I2,I3 50.0600 41.5093 291.02 62.83 98.43 dss pspc rass 601647 32222 0 NGC3626 2026:078:10:03:50.525 10.6 ACIS-S NONE I3,S2,S3,S4 170.0158 18.3568 206.45 160.37 98.42 dss pspc rass 802200 30363 0 Perseus cluster E 2026:078:13:37:52.732 14.8 ACIS-I NONE I0,I1,I2,I3,S2 50.0600 41.5093 291.02 62.52 98.42 dss pspc rass 601647 32223 0 NGC3626 2026:078:18:21:04.845 10.2 ACIS-S NONE I3,S2,S3,S4 170.0158 18.3568 207.10 160.11 98.41 dss pspc rass 802200 32235 0 Perseus cluster E 2026:078:21:49:20.683 10.0 ACIS-I NONE I0,I1,I2,I3,S2 50.0600 41.5093 298.57 62.20 98.69 dss pspc rass 802207 32236 0 Abell 2255 2026:079:01:07:37.070 11.4 ACIS-I NONE I0,I1,I2,I3 258.2085 64.0529 91.97 95.11 72.48 dss pspc rass ---- 41620 CAL-ER (PER06) 2026:079:04:54:32.992 3.0 -- -- 177.5649 5.2099 199.66 174.80 92.95 ---- 41619 CAL-ER (PER07) 2026:079:10:35:00.000 3.0 -- -- 40.8000 42.8000 310.00 56.72 118.72 601654 32227 0 NGC4548 2026:079:15:12:41.109 10.1 ACIS-S NONE I3,S2,S3,S4 188.8604 14.4961 161.00 163.01 117.94 dss pspc rass ---- 41618 CAL-ER (IAT06) 2026:079:18:37:08.497 0.0 -- -- 349.0086 50.1300 13.95 51.08 113.05 802197 30326 0 Perseus cluster N 2026:079:19:05:19.245 13.5 ACIS-I NONE I0,I1,I2,I3 49.9508 41.5897 291.02 61.41 55.48 dss pspc rass 601647 32224 0 NGC3626 2026:079:23:27:41.689 11.0 ACIS-S NONE I3,S2,S3,S4 170.0158 18.3568 209.28 159.20 98.43 dss pspc rass 802197 32229 0 Perseus cluster N 2026:080:03:08:24.133 14.2 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.5897 291.02 61.10 98.43 dss pspc rass ---- 41617 CAL-ER (IAT07) 2026:080:07:30:45.546 0.0 -- -- 156.5649 57.2083 207.62 119.62 64.23 601654 32228 0 NGC4548 2026:080:07:58:53.022 10.0 ACIS-S NONE I3,S2,S3,S4 188.8604 14.4961 161.00 163.14 55.24 dss pspc rass ---- 41616 CAL-ER (IAT08) 2026:080:11:19:45.945 0.0 -- -- 344.8000 58.4000 18.27 59.55 104.47 802197 30327 0 Perseus cluster N 2026:080:11:47:47.018 12.4 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.5897 291.02 60.77 54.76 dss pspc rass 601647 31878 0 NGC3626 2026:080:15:51:49.696 11.0 ACIS-S NONE I3,S2,S3,S4 170.0158 18.3568 210.51 158.66 98.45 dss pspc rass 802197 32230 0 Perseus cluster N 2026:080:19:32:32.375 13.8 ACIS-I NONE I0,I1,I2,I3 49.9508 41.5897 291.02 60.48 98.45 dss pspc rass 601647 32237 0 NGC3626 2026:080:23:59:05.211 11.0 ACIS-S NONE I3,S2,S3,S4 170.0158 18.3568 211.07 158.39 98.46 dss pspc rass 802199 30357 0 Perseus cluster S 2026:081:03:39:49.233 12.5 ACIS-I NONE I0,I1,I2,I3 49.9508 41.4236 291.02 60.09 98.55 dss pspc rass 601647 32238 0 NGC3626 2026:081:07:45:33.416 10.0 ACIS-S NONE I3,S2,S3,S4 170.0158 18.3568 211.58 158.13 98.56 dss pspc rass 802199 32232 0 Perseus cluster S 2026:081:11:09:37.598 12.5 ACIS-I NONE I0,I1,I2,I3 49.9508 41.4236 291.02 59.81 98.56 dss pspc rass ---- 41615 CAL-ER (IAT09) 2026:081:15:18:33.445 2.5 -- -- 176.8675 5.3060 218.27 172.44 112.94 802197 32231 0 Perseus cluster N 2026:081:16:40:48.027 10.9 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.5897 291.52 59.68 112.84 dss pspc rass ---- 41614 CAL-ER (PER08) 2026:081:20:22:24.152 1.0 -- -- 177.1207 6.1634 213.83 171.71 112.25
Previous weeks' short-term schedules.
Last modified: 03/20/26
