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 ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ ------------- ---- 41778 CAL-ER (IAT13) 2026:021:15:11:28.725 0.9 -- -- 125.0000 11.0000 9.20 170.97 96.58 503562 TOO 29847 2 GRB260114A 2026:021:16:02:34.026 25.0 ACIS-S NONE I3,S1,S2,S3 74.5979 -8.0144 296.00 124.36 89.57 dss pspc rass 705386 31657 0 BOSS0210W 2026:021:23:24:31.026 10.0 ACIS-I NONE I0,I1,I2,I3 32.7500 0.7800 289.86 89.23 42.76 dss pspc rass ---- 41777 CAL-ER (IAT14) 2026:022:03:01:40.832 0.9 -- -- 177.2816 -9.8290 60.31 119.76 157.49 802201 32117 0 Abell 795 2026:022:03:43:48.995 10.0 ACIS-S NONE I3,S1,S2,S3 141.0221 14.1726 86.00 162.81 49.28 dss pspc rass 503548 TOO 32112 2 SN2025sei 2026:022:07:11:48.863 11.4 ACIS-S NONE S2,S3 267.2476 25.4958 44.50 57.77 116.24 dss pspc rass 790397 31733 3 MKN421 2026:022:10:56:33.857 15.3 ACIS-S LETG S1,S2,S3,S4,S5 166.1133 38.2088 117.98 139.50 82.87 dss pspc rass ---- 41776 CAL-ER (IAT08) 2026:022:15:56:20.125 0.9 -- -- 75.6997 15.4354 282.72 133.37 131.72 705402 31674 0 SDSS J014837.63+0600 2026:022:16:38:37.399 15.2 ACIS-I NONE I0,I1,I2,I3 27.1568 6.0056 280.00 85.06 49.97 dss pspc rass ---- 41775 CAL-ER (IAT05) 2026:022:21:18:25.778 0.0 -- -- 62.4284 72.0846 249.49 117.01 69.63 790397 32121 3 MKN421 2026:022:21:49:18.210 15.1 ACIS-S LETG S1,S2,S3,S4 166.1133 38.2088 117.98 139.79 67.61 dss pspc rass ---- 41774 CAL-ER (IAT06) 2026:023:02:27:00.986 0.0 -- -- 62.4284 72.0846 249.69 116.90 67.71 705402 32120 0 SDSS J014837.63+0600 2026:023:02:58:20.256 15.1 ACIS-I NONE I0,I1,I2,I3 27.1568 6.0056 280.00 84.63 69.62 dss pspc rass ---- 41773 CAL-ER (IAT10) 2026:023:07:50:30.129 0.9 -- -- 220.8095 60.6553 75.46 104.28 112.49 802203 32122 0 ZwCl 0857.9+2107 2026:023:08:39:43.385 10.0 ACIS-S NONE S1,S2,S3,S4 135.1535 20.8945 96.61 170.63 81.17 dss pspc rass 503548 TOO 32113 2 SN2025sei 2026:023:12:07:54.470 10.1 ACIS-S NONE S2,S3 267.2476 25.4958 45.00 58.30 117.08 dss pspc rass ---- 41772 CAL-ER (PER06) 2026:023:15:35:39.410 3.0 -- -- 131.9623 28.7894 146.72 168.99 110.89 ---- 41771 CAL-ER (PER07) 2026:023:19:00:00.000 3.0 -- -- 113.5769 33.3008 220.94 162.37 66.49 ---- 41770 CAL-ER (PER05) 2026:023:21:10:00.000 3.0 -- -- 41.9000 48.6000 278.74 108.35 54.54 ---- 41769 CAL-ER (PER08) 2026:024:00:40:00.000 1.0 -- -- 269.6007 29.6116 40.15 60.21 91.43 601651 30168 0 NGC4496A 2026:024:03:33:25.225 30.1 ACIS-S NONE I3,S2,S3,S4 187.9135 3.9396 62.00 117.87 81.07 dss pspc rass 601740 CCT 32110 0 UGC 05086 2026:024:12:22:03.851 10.0 ACIS-I NONE I0,I1,I2,I3 143.2034 21.4656 95.02 164.19 51.65 dss pspc rass 503548 TOO 32114 2 SN2025sei 2026:024:15:48:40.317 10.0 ACIS-S NONE S2,S3 267.2476 25.4958 45.00 58.87 109.99 dss pspc rass 503497 30107 1 PSR J1101-6101 2026:024:19:18:05.518 30.2 ACIS-I NONE I0,I1,I2,I3 165.4378 -61.0279 34.00 94.00 122.64 dss pspc rass ---- 41768 CAL-ER (IAT11) 2026:025:04:00:04.455 0.0 -- -- 165.9394 -27.2340 43.27 120.37 34.93 802203 32123 0 ZwCl 0857.9+2107 2026:025:04:33:56.349 10.0 ACIS-S NONE S1,S2,S3,S4 135.1535 20.8945 102.02 172.32 81.07 dss pspc rass 705227 32116 0 NGC5728 2026:025:07:57:48.409 10.0 ACIS-S NONE S2,S3 220.5995 -17.2531 61.25 81.50 97.65 dss pspc rass ---- 41767 CAL-ER (IAT12) 2026:025:11:31:40.509 0.9 -- -- 39.5945 -24.0540 288.25 84.17 142.66 503563 TOO 29848 2 GRB260114A 2026:025:12:11:38.509 25.0 ACIS-S NONE I2,I3,S1,S2,S3 74.5979 -8.0144 298.04 121.23 37.10 dss pspc rass
Seq # NB ObsID Constr. Target Start Time SI Grat Active Chips RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ ------------- 705227 30190 0 NGC5728 2026:019:01:25:40.462 10.3 ACIS-S NONE S2,S3 220.5995 -17.2531 61.25 75.11 79.56 dss pspc rass 802201 30377 0 Abell 795 2026:019:04:51:44.854 10.0 ACIS-S NONE S2,S3 141.0221 14.1726 69.08 159.80 85.08 dss pspc rass 705227 32115 0 NGC5728 2026:019:08:12:48.916 12.0 ACIS-S NONE S2,S3 220.5995 -17.2531 61.50 75.40 85.05 dss pspc rass 601658 30177 0 NGC4694 2026:019:11:58:05.916 28.5 ACIS-S NONE I3,S2,S3,S4 192.0629 10.9835 67.00 111.60 40.52 dss pspc rass 802201 32117 0 Abell 795 2026:019:20:19:07.596 10.0 ACIS-S NONE I3,S1,S2,S3 141.0221 14.1726 86.00 160.46 50.30 dss pspc rass 503548 TOO 29833 2 SN2025sei 2026:019:23:46:53.541 12.2 ACIS-S NONE S2,S3 267.2476 25.4958 36.01 56.73 115.20 dss pspc rass 802201 32118 0 Abell 795 2026:020:03:51:19.487 10.0 ACIS-S NONE I3,S1,S2,S3 141.0221 14.1726 86.00 160.78 115.20 dss pspc rass ---- 41778 CAL-ER (IAT03) 2026:020:07:33:23.035 0.9 -- -- 104.0741 18.9123 277.39 162.99 179.52 705386 31657 0 BOSS0210W 2026:020:08:20:35.725 28.0 ACIS-I NONE I0,I1,I2,I3 32.7500 0.7800 293.00 90.86 72.13 dss pspc rass 503562 TOO 29847 2 GRB260114A 2026:020:16:32:20.725 25.0 ACIS-S NONE I3,S1,S2,S3 74.5979 -8.0144 296.00 125.15 42.63 dss pspc rass ---- 41777 CAL-ER (PER01) 2026:020:23:52:03.033 3.0 -- -- 103.8000 8.4000 304.40 158.26 34.45 ---- 41776 CAL-ER (PER02) 2026:021:02:31:00.000 3.0 -- -- 143.6159 -3.2512 40.34 149.10 104.12 ---- 41775 CAL-ER (PER03) 2026:021:04:30:00.000 3.0 -- -- 221.9000 -41.0000 80.08 70.48 79.11 ---- 41774 CAL-ER (PER04) 2026:021:10:45:00.000 1.0 -- -- 129.8000 15.6000 54.15 172.42 101.75 705430 32119 0 SDSS J093401.24+2453 2026:021:11:47:50.973 10.0 ACIS-S NONE S1,S2,S3,S4 143.5051 24.8951 97.99 160.70 50.99 dss pspc rass 503548 TOO 32111 2 SN2025sei 2026:021:15:13:46.928 11.2 ACIS-S NONE S2,S3 267.2476 25.4958 39.01 57.44 106.95 dss pspc rass 601661 30180 0 NGC4941 2026:021:18:53:00.061 30.0 ACIS-S NONE I3,S2,S3,S4 196.0547 -5.5516 67.79 104.46 76.74 dss pspc rass 802203 31883 0 ZwCl 0857.9+2107 2026:022:03:43:26.621 10.0 ACIS-S NONE S1,S2,S3,S4 135.1535 20.8945 94.00 169.51 67.24 dss pspc rass 503548 TOO 32112 2 SN2025sei 2026:022:07:11:42.720 11.4 ACIS-S NONE S2,S3 267.2476 25.4958 44.50 57.77 117.46 dss pspc rass 790397 31733 3 MKN421 2026:022:10:56:27.714 15.3 ACIS-S LETG S1,S2,S3,S4,S5 166.1133 38.2088 117.98 139.50 82.87 dss pspc rass ---- 41773 CAL-ER (IAT08) 2026:022:15:56:13.962 0.9 -- -- 75.8719 15.4616 282.68 133.54 131.72 705402 31674 0 SDSS J014837.63+0600 2026:022:16:38:33.445 15.2 ACIS-I NONE I0,I1,I2,I3 27.1568 6.0056 280.00 85.06 50.14 dss pspc rass ---- 41772 CAL-ER (IAT05) 2026:022:21:18:21.822 0.0 -- -- 62.4284 72.0846 249.49 117.01 69.63 790397 32121 3 MKN421 2026:022:21:49:14.258 15.1 ACIS-S LETG S1,S2,S3,S4 166.1133 38.2088 117.98 139.79 67.61 dss pspc rass ---- 41771 CAL-ER (IAT06) 2026:023:02:26:57.032 0.0 -- -- 62.4284 72.0846 249.69 116.90 67.71 705402 32120 0 SDSS J014837.63+0600 2026:023:02:58:16.301 15.1 ACIS-I NONE I0,I1,I2,I3 27.1568 6.0056 280.00 84.63 69.62 dss pspc rass ---- 41770 CAL-ER (IAT10) 2026:023:07:50:26.172 0.9 -- -- 220.8095 60.6553 75.46 104.28 112.49 802203 32122 0 ZwCl 0857.9+2107 2026:023:08:39:39.438 10.0 ACIS-S NONE S1,S2,S3,S4 135.1535 20.8945 96.60 170.63 81.17 dss pspc rass 503548 TOO 32113 2 SN2025sei 2026:023:12:07:50.526 10.1 ACIS-S NONE S2,S3 267.2476 25.4958 45.00 58.30 117.08 dss pspc rass ---- 41769 CAL-ER (PER06) 2026:023:15:35:39.410 3.0 -- -- 131.9623 28.7894 146.72 168.99 110.89 ---- 41768 CAL-ER (PER07) 2026:023:19:00:00.000 3.0 -- -- 113.5769 33.3008 220.94 162.37 66.49 ---- 41767 CAL-ER (PER05) 2026:023:21:10:00.000 3.0 -- -- 41.9000 48.6000 278.74 108.35 54.54 ---- 41766 CAL-ER (PER08) 2026:024:00:40:00.000 1.0 -- -- 269.6007 29.6116 40.16 60.21 91.43 601651 30168 0 NGC4496A 2026:024:03:33:25.225 30.1 ACIS-S NONE I3,S2,S3,S4 187.9135 3.9396 62.00 117.87 81.07 dss pspc rass 601740 CCT 32110 0 UGC 05086 2026:024:12:22:03.853 10.0 ACIS-I NONE I0,I1,I2,I3 143.2034 21.4656 95.02 164.19 51.65 dss pspc rass 503548 TOO 32114 2 SN2025sei 2026:024:15:48:40.318 10.0 ACIS-S NONE S2,S3 267.2476 25.4958 45.00 58.87 109.98 dss pspc rass 503497 30107 1 PSR J1101-6101 2026:024:19:18:05.519 30.2 ACIS-I NONE I0,I1,I2,I3 165.4378 -61.0279 34.00 94.00 122.64 dss pspc rass ---- 41765 CAL-ER (IAT11) 2026:025:04:00:04.456 0.0 -- -- 165.9394 -27.2340 43.27 120.37 34.93 802203 32123 0 ZwCl 0857.9+2107 2026:025:04:33:56.338 10.0 ACIS-S NONE S1,S2,S3,S4 135.1535 20.8945 102.01 172.32 81.07 dss pspc rass 705227 32116 0 NGC5728 2026:025:07:57:48.393 10.0 ACIS-S NONE S2,S3 220.5995 -17.2531 61.25 81.50 97.65 dss pspc rass ---- 41764 CAL-ER (IAT12) 2026:025:11:31:40.492 0.9 -- -- 39.5945 -24.0540 288.25 84.17 142.66 503563 TOO 29848 2 GRB260114A 2026:025:12:11:38.492 25.0 ACIS-S NONE I2,I3,S1,S2,S3 74.5979 -8.0144 298.04 121.23 37.10 dss pspc rass
Previous weeks' short-term schedules.
Last modified: 01/20/26
