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 ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- ---- 42778 CAL-ER (PER02) 2025:013:05:15:23.907 2.5 -- -- 117.1946 24.9066 145.90 175.91 71.54 ---- 42777 CAL-ER (PER03) 2025:013:06:17:40.860 3.0 -- -- 117.9655 36.2374 168.48 165.00 25.59 ---- 42776 CAL-ER (PER04) 2025:013:07:28:45.626 0.9 -- -- 106.4552 42.9091 200.71 157.46 27.19 ---- 42775 CAL-ER (PER07) 2025:013:08:24:21.650 0.9 -- -- 304.5064 25.2216 347.83 47.62 109.88 ---- 42774 CAL-ER (PER01) 2025:013:09:34:00.000 0.9 -- -- 40.8947 50.2450 272.37 116.42 74.90 ---- 42773 CAL-ER (CAL01) 2025:013:09:53:41.000 2.1 -- -- 40.8947 50.2451 272.38 116.41 0.01 ---- 42772 CAL-ER (CAL01) 2025:013:10:37:11.000 0.9 -- -- 40.8947 50.2451 272.41 116.38 0.03 ---- 42771 CAL-ER (PER05) 2025:013:11:23:40.779 3.0 -- -- 332.8550 9.2943 310.03 48.21 68.91 ---- 42770 CAL-ER (PER06) 2025:013:12:43:09.300 0.9 -- -- 351.0575 -34.0399 270.85 50.48 62.89 601614 28538 0 NGC1300 2025:013:13:39:12.881 30.0 ACIS-S NONE 49.9158 -19.4188 312.00 104.27 55.14 dss pspc rass ---- 42769 CAL-ER (IAT01) 2025:013:22:22:23.269 0.0 -- -- 106.7210 -21.7189 348.15 136.03 54.78 601685 29875 0 SDSS J082730.64+1921 2025:013:22:59:53.659 15.0 ACIS-S NONE 126.8870 19.3683 77.23 169.19 97.45 dss pspc rass 503551 29836 0 PSR J1418-6058 2025:014:03:50:18.516 13.0 ACIS-I NONE 214.6974 -60.9780 81.02 67.13 112.11 dss pspc rass 890253 29623 2 A1795 2025:014:08:02:02.530 20.0 ACIS-I NONE 207.2330 26.5921 70.23 98.31 88.05 dss pspc rass 601685 30730 0 SDSS J082730.64+1921 2025:014:14:08:48.620 22.0 ACIS-S NONE 126.8872 19.3669 70.00 169.83 80.71 dss pspc rass 503551 30729 0 PSR J1418-6058 2025:014:20:55:13.560 15.5 ACIS-I NONE 214.7001 -60.9781 86.27 67.60 109.12 dss pspc rass 802201 30373 0 Abell 795 2025:015:01:50:37.769 17.0 ACIS-S NONE 141.0315 14.1708 69.58 155.86 97.07 dss pspc rass 704958 28565 0 PSO J170.8326+20.208 2025:015:06:56:55.527 30.0 ACIS-S NONE 170.8374 20.1833 78.80 129.85 34.19 dss pspc rass 705251 P1 29963 0 SDSS J131012.35+1656 2025:015:15:38:06.527 10.4 ACIS-S NONE 197.5542 16.9116 72.04 104.87 25.58 dss pspc rass ---- 42768 CAL-ER (PER08) 2025:015:19:02:40.486 3.0 -- -- 121.6465 22.0771 104.19 176.01 71.07 ---- 42767 CAL-ER (PER10) 2025:015:20:32:41.942 3.0 -- -- 115.4996 23.6283 216.84 176.77 110.36 ---- 42766 CAL-ER (PER09) 2025:016:00:58:00.000 1.1 -- -- 55.7000 49.0000 263.42 123.86 53.36 ---- 42765 CAL-ER (CAL01) 2025:016:01:19:41.000 2.4 -- -- 55.7000 49.0000 263.43 123.85 0.01 ---- 42764 CAL-ER (CAL01) 2025:016:02:08:11.000 0.9 -- -- 55.7000 49.0000 263.46 123.82 0.03 ---- 42763 CAL-ER (PER11) 2025:016:02:56:22.094 0.9 -- -- 329.7528 14.4579 317.83 47.28 76.51 ---- 42762 CAL-ER (CAL01) 2025:016:04:45:00.000 0.9 -- -- 351.0575 -34.0399 268.67 48.33 73.40 601614 28539 0 NGC1300 2025:016:05:40:51.226 25.5 ACIS-S NONE 49.9133 -19.4171 302.00 102.11 54.01 dss pspc rass ---- 42761 CAL-ER (CAL01) 2025:016:13:09:25.948 0.0 -- -- 106.7210 -21.7189 344.32 135.88 56.60 802201 30733 0 Abell 795 2025:016:13:46:08.599 11.5 ACIS-S NONE 141.0314 14.1717 69.42 157.39 93.87 dss pspc rass ---- 42760 CAL-ER (IAT02) 2025:016:17:25:53.723 0.9 -- -- 194.0393 -6.8149 67.11 100.94 56.63 705118 28846 0 Abell 370 2025:016:18:33:49.417 28.0 ACIS-I NONE 39.9480 -1.5737 277.50 100.04 165.35 dss pspc rass ---- 42759 CAL-ER (CAL01) 2025:017:02:49:53.710 0.0 -- -- 106.7210 -21.7189 343.50 135.81 82.82 601641 30155 0 NGC2775 2025:017:03:22:16.708 13.4 ACIS-S NONE 137.5928 7.0367 50.70 157.32 74.40 dss pspc rass 705265 P1 29977 0 SDSS J145138.27+0903 2025:017:07:40:58.521 13.5 ACIS-S NONE 222.9079 9.0396 69.00 80.58 89.39 dss pspc rass 601641 30731 0 NGC2775 2025:017:12:00:16.857 13.4 ACIS-S NONE 137.5928 7.0394 66.00 157.65 85.80 dss pspc rass 705211 P1 29923 0 SDSS J160158.51+4705 2025:017:16:22:03.606 13.4 ACIS-S NONE 240.4852 47.0757 53.53 86.07 103.26 dss pspc rass 201650 27990 2 HD 75332 2025:017:20:48:30.106 12.1 HRC-I NONE 132.6528 33.2793 134.46 162.96 76.89 dss pspc rass ---- 42758 CAL-ER (IAT03) 2025:018:00:33:43.530 0.0 -- -- 176.5637 17.1210 76.66 126.53 56.51 901884 P1 29910 0 IGR J15550-4306 2025:018:01:07:59.561 5.5 ACIS-I NONE 238.7841 -43.1018 93.59 55.21 82.88 dss pspc rass 601660 29665 0 NGC4781 2025:018:03:06:31.203 24.8 ACIS-S NONE 193.6081 -10.5366 66.29 101.27 51.12 dss pspc rass ---- 42757 CAL-ER (PER12) 2025:018:10:31:41.512 3.0 -- -- 124.1299 20.0331 81.40 176.40 75.25 ---- 42756 CAL-ER (CAL01) 2025:018:12:10:57.849 3.0 -- -- 115.4996 23.6283 236.51 174.49 151.98 ---- 42755 CAL-ER (PER13) 2025:018:16:30:00.000 0.9 -- -- 38.4000 40.8000 281.06 108.95 65.40 ---- 42754 CAL-ER (CAL01) 2025:018:16:49:41.000 2.4 -- -- 38.4000 40.8000 281.07 108.93 0.01 ---- 42753 CAL-ER (CAL01) 2025:018:17:38:11.000 0.9 -- -- 38.4000 40.8000 281.09 108.90 0.02 ---- 42752 CAL-ER (CAL01) 2025:018:18:23:54.414 2.0 -- -- 115.4996 23.6283 237.54 174.23 65.43 ---- 42751 CAL-ER (CAL01) 2025:018:19:40:56.608 0.9 -- -- 331.5000 16.5000 319.64 47.71 126.91 704981 28592 0 Abell 370 2025:018:22:50:28.364 35.0 ACIS-I NONE 39.9474 -1.5727 277.50 97.92 75.95 dss pspc rass ---- 42750 CAL-ER (CAL01) 2025:019:09:26:02.971 0.9 -- -- 194.0393 -6.8149 67.07 103.66 165.35 802203 30021 0 ZwCl 0857.9+2107 2025:019:10:11:48.050 11.4 ACIS-S NONE 135.1621 20.8733 89.89 167.12 65.56 dss pspc rass ---- 42749 CAL-ER (CAL01) 2025:019:13:51:52.146 0.9 -- -- 194.0393 -6.8149 67.07 103.84 65.56 704981 28618 0 Abell 370 2025:019:14:59:47.713 20.0 ACIS-I NONE 39.9484 -1.5742 277.50 97.25 165.34 dss pspc rass ---- 42748 CAL-ER (CAL01) 2025:019:21:25:28.634 0.9 -- -- 192.4709 -5.8806 66.95 105.96 165.82 601641 30732 0 NGC2775 2025:019:22:09:52.753 10.0 ACIS-S NONE 137.5927 7.0363 47.40 159.88 59.48 dss pspc rass
Seq # NB ObsID Constr. Target Start Time SI Grat RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- 201582 30707 2 Orion Nebula Cluster 2025:003:04:06:24.932 11.1 ACIS-I NONE 83.8020 -5.3863 310.00 145.65 90.75 dss pspc rass ---- 42808 CAL-ER (IAT04) 2025:003:08:05:10.635 0.9 -- -- 116.5000 28.6600 114.41 167.32 172.18 705329 30552 1 NGC 5548 2025:003:09:00:16.635 9.2 HRC-S LETG 214.4993 25.1172 66.00 82.70 84.87 dss pspc rass 402532 P1 29750 0 1eRASS J012710.5-285 2025:003:12:28:51.779 1.0 ACIS-S NONE 21.7746 -28.9112 293.58 85.35 178.89 dss pspc rass 201582 30708 2 Orion Nebula Cluster 2025:003:13:15:13.824 13.0 ACIS-I NONE 83.8018 -5.3911 325.50 145.43 63.90 dss pspc rass 601709 CCT 30689 0 IC 1574 2025:003:17:24:09.729 10.0 ACIS-I NONE 10.7514 -22.2358 281.99 78.40 75.44 dss pspc rass 201797 30083 0 NGC1977 point 2025:003:20:43:06.704 20.0 ACIS-I NONE 83.8296 -4.8394 324.61 145.73 75.52 dss pspc rass 201829 CCT 30691 0 2MASS J22445794-3315 2025:004:02:53:44.732 5.0 ACIS-S NONE 341.2327 -33.2297 269.99 50.28 98.10 dss pspc rass 201797 30703 0 NGC1977 point 2025:004:04:54:22.310 12.3 ACIS-I NONE 83.8298 -4.8392 324.10 145.54 98.07 dss pspc rass 201832 CCT 30694 0 2RXS J004445.0-22002 2025:004:08:51:40.834 10.0 ACIS-S NONE 11.1723 -21.9865 280.00 78.26 75.64 dss pspc rass 201797 30704 0 NGC1977 point 2025:004:12:10:22.156 20.2 ACIS-I NONE 83.8301 -4.8379 319.00 145.38 74.35 dss pspc rass ---- 42807 CAL-ER (IAT01) 2025:004:18:17:42.406 0.0 -- -- 144.0000 -22.0000 42.40 121.67 88.52 705327 30549 0 M87 2025:004:18:59:04.406 13.8 HRC-I NONE 187.7036 12.3741 55.00 101.88 55.55 dss pspc rass ---- 42806 CAL-ER (CAL01) 2025:004:23:12:25.386 0.0 -- -- 144.0000 -22.0000 42.25 121.83 55.57 201797 30705 0 NGC1977 point 2025:004:23:47:19.554 17.0 ACIS-I NONE 83.8311 -4.8392 322.93 145.12 85.74 dss pspc rass ---- 42805 CAL-ER (CTI06) 2025:005:05:07:57.571 3.0 -- -- 339.3000 -40.1000 265.29 47.94 97.90 ---- 42804 CAL-ER (PER19) 2025:005:07:00:00.000 3.0 -- -- 97.0000 18.0000 299.98 170.30 122.56 ---- 42803 CAL-ER (PER20) 2025:005:09:00:00.000 2.0 -- -- 341.6000 -33.6000 272.27 49.52 120.72 ---- 42802 CAL-ER (CAL01) 2025:005:10:40:00.000 1.0 -- -- 39.0000 42.0000 273.14 121.48 92.30 ---- 42801 CAL-ER (CAL01) 2025:005:11:26:00.000 1.0 -- -- 39.0000 42.0000 273.16 121.45 0.02 ---- 42800 CAL-ER (CAL01) 2025:005:12:12:00.000 1.0 -- -- 39.0000 42.0000 273.19 121.41 0.03 ---- 42799 CAL-ER (PER21) 2025:005:13:15:00.000 1.0 -- -- 89.0000 25.0000 264.98 163.91 48.78 ---- 42798 CAL-ER (PER22) 2025:005:14:30:00.000 3.0 -- -- 337.0000 -11.7000 289.83 49.27 114.77 802200 30359 0 Perseus cluster E 2025:005:16:40:02.392 19.2 ACIS-I NONE 50.0473 41.5225 266.28 129.49 85.45 dss pspc rass 705347 CCT 30709 0 UGC3752 2025:005:22:32:59.373 10.0 ACIS-S NONE 108.5433 35.2804 161.98 167.20 78.52 dss pspc rass ---- 42797 CAL-ER (IAT05) 2025:006:01:55:00.442 0.9 -- -- 213.8000 27.1500 66.00 86.41 89.33 705329 30706 1 NGC 5548 2025:006:02:51:42.442 11.5 HRC-S LETG 214.4992 25.1188 66.00 84.94 2.15 dss pspc rass 705230 29942 0 QSO B0824+110 2025:006:06:38:18.865 20.0 ACIS-S NONE 126.7775 10.8505 70.00 157.95 87.48 dss pspc rass 901871 29897 0 PG 1553+113 2025:006:12:51:27.747 10.9 ACIS-I NONE 238.9129 11.1721 49.00 58.30 109.42 dss pspc rass ---- 42796 CAL-ER (IAT01) 2025:006:16:01:37.747 0.9 -- -- 238.8000 11.0000 49.00 58.40 0.21 790390 29608 3 3C273 2025:006:16:44:38.245 28.0 ACIS-S HETG 187.2773 2.0291 67.50 100.37 53.21 dss pspc rass 802203 30381 0 ZwCl 0857.9+2107 2025:007:01:00:01.845 16.0 ACIS-S NONE 135.1585 20.8729 81.40 154.77 54.19 dss pspc rass 901871 30718 0 PG 1553+113 2025:007:06:04:07.531 8.9 ACIS-I NONE 238.9130 11.1737 48.00 58.87 98.68 dss pspc rass ---- 42795 CAL-ER (CAL01) 2025:007:08:40:57.531 0.9 -- -- 238.8000 11.0000 48.00 58.95 0.21 802203 30388 0 ZwCl 0857.9+2107 2025:007:09:34:03.561 13.0 ACIS-S NONE 135.1586 20.8727 81.55 155.13 98.63 dss pspc rass 901871 30719 0 PG 1553+113 2025:007:13:48:09.165 8.2 ACIS-I NONE 238.9128 11.1730 48.00 59.13 98.67 dss pspc rass ---- 42794 CAL-ER (CAL01) 2025:007:16:13:19.165 0.9 -- -- 238.8000 11.0000 48.00 59.20 0.21 802203 30391 0 ZwCl 0857.9+2107 2025:007:17:06:25.121 10.5 ACIS-S NONE 135.1589 20.8719 81.69 155.44 98.62 dss pspc rass ---- 42793 CAL-ER (CTI01) 2025:007:20:41:07.450 1.0 -- -- 242.7000 -4.3000 63.66 48.18 107.98 ---- 42792 CAL-ER (PER01) 2025:007:22:15:00.000 1.0 -- -- 321.0000 15.0000 319.27 48.74 117.99 ---- 42791 CAL-ER (PER02) 2025:007:23:45:00.000 3.0 -- -- 107.0000 25.0000 215.15 176.70 128.17 ---- 42790 CAL-ER (CAL01) 2025:008:02:55:00.000 1.0 -- -- 107.0000 25.0000 216.80 176.60 1.65 ---- 42789 CAL-ER (CAL01) 2025:008:03:40:00.000 2.0 -- -- 107.0000 25.0000 217.30 176.57 0.50 ---- 42788 CAL-ER (PER03) 2025:008:06:00:00.000 1.0 -- -- 297.0000 26.0000 350.59 48.82 129.28 503592 DDT 30710 1 SN2023fyq 2025:008:07:47:06.085 20.0 ACIS-S NONE 186.4443 12.6367 75.00 106.62 106.01 dss pspc rass 802203 30400 0 ZwCl 0857.9+2107 2025:008:13:47:06.986 10.0 ACIS-S NONE 135.1601 20.8688 82.01 156.33 50.32 dss pspc rass 705329 30524 1 NGC 5548 2025:008:17:16:11.986 14.5 HRC-S LETG 214.4984 25.1157 63.75 87.07 73.92 dss pspc rass 802203 30721 0 ZwCl 0857.9+2107 2025:008:21:49:47.339 13.0 ACIS-S NONE 135.1597 20.8701 82.12 156.66 73.90 dss pspc rass 601665 29670 0 NGC5530 2025:009:02:04:08.922 10.0 ACIS-S NONE 214.6262 -43.3896 76.01 64.78 99.87 dss pspc rass 802203 30722 0 ZwCl 0857.9+2107 2025:009:05:28:30.855 10.0 ACIS-S NONE 135.1596 20.8706 82.25 156.98 99.90 dss pspc rass 601665 30714 0 NGC5530 2025:009:08:52:52.786 10.0 ACIS-S NONE 214.6262 -43.3895 76.01 65.02 99.89 dss pspc rass 802203 30723 0 ZwCl 0857.9+2107 2025:009:12:17:15.060 10.0 ACIS-S NONE 135.1596 20.8706 82.37 157.26 99.92 dss pspc rass 601665 30715 0 NGC5530 2025:009:15:41:37.334 10.0 ACIS-S NONE 214.6262 -43.3895 76.01 65.27 99.92 dss pspc rass 802203 30724 0 ZwCl 0857.9+2107 2025:009:19:05:59.984 10.0 ACIS-S NONE 135.1597 20.8705 82.50 157.54 99.95 dss pspc rass 601665 30716 0 NGC5530 2025:009:22:30:22.635 10.0 ACIS-S NONE 214.6262 -43.3896 76.01 65.52 99.95 dss pspc rass 802203 30725 0 ZwCl 0857.9+2107 2025:010:01:54:45.700 10.0 ACIS-S NONE 135.1598 20.8705 82.65 157.82 99.98 dss pspc rass 601665 30717 0 NGC5530 2025:010:05:19:08.765 10.0 ACIS-S NONE 214.6263 -43.3897 76.01 65.77 99.98 dss pspc rass 802203 30726 0 ZwCl 0857.9+2107 2025:010:08:43:32.291 10.1 ACIS-S NONE 135.1599 20.8704 82.81 158.10 100.01 dss pspc rass ---- 42787 CAL-ER (CAL01) 2025:010:12:10:32.200 1.0 -- -- 242.7000 -4.3000 64.99 50.68 107.99 ---- 42786 CAL-ER (PER04) 2025:010:13:30:00.000 1.0 -- -- 323.0000 18.0000 321.38 50.23 116.78 ---- 42785 CAL-ER (CAL01) 2025:010:15:00:00.000 3.0 -- -- 107.0000 25.0000 236.66 174.53 124.87 ---- 42784 CAL-ER (PER05) 2025:010:17:40:00.000 1.0 -- -- 23.0000 47.0000 284.67 106.45 68.54 ---- 42783 CAL-ER (CAL01) 2025:010:18:23:00.000 1.0 -- -- 23.0000 47.0000 284.69 106.42 0.02 ---- 42782 CAL-ER (CAL01) 2025:010:19:09:00.000 1.0 -- -- 23.0000 47.0000 284.72 106.39 0.03 ---- 42781 CAL-ER (CAL01) 2025:010:20:15:00.000 3.0 -- -- 107.0000 25.0000 237.74 174.32 68.66 ---- 42780 CAL-ER (PER06) 2025:010:23:00:00.000 1.0 -- -- 115.0000 23.0000 113.86 177.27 120.77 705349 CCT 30712 0 CGCG 081-001 2025:011:00:27:59.510 10.0 ACIS-S NONE 250.7995 9.8785 51.72 51.68 125.81 dss pspc rass 705348 CCT 30711 0 SDSSJ075147.71+24535 2025:011:03:57:21.110 10.0 ACIS-S NONE 117.9730 24.8808 120.14 174.16 122.37 dss pspc rass 705329 30554 1 NGC 5548 2025:011:07:26:26.110 10.0 HRC-S LETG 214.4990 25.1129 65.32 89.19 85.19 dss pspc rass 402540 29758 0 1eRASS J112803.5+310 2025:011:10:39:04.710 1.0 ACIS-S NONE 172.0277 31.0334 90.99 126.81 38.02 dss pspc rass 704975 TOO 28166 0 SDSS J021340.14-0501 2025:011:11:47:26.070 36.6 ACIS-S NONE 33.3990 -5.0105 291.00 97.83 162.85 dss pspc rass 802165 28808 0 PSZ2G162.33+25.03 2025:011:22:35:12.622 6.1 ACIS-I NONE 108.5823 54.7039 191.98 146.85 100.24 dss pspc rass 705329 30727 1 NGC 5548 2025:012:00:59:17.622 10.0 HRC-S LETG 214.4991 25.1181 65.75 89.80 87.87 dss pspc rass 802201 30375 0 Abell 795 2025:012:04:17:24.647 17.7 ACIS-S NONE 141.0312 14.1742 74.00 152.91 71.78 dss pspc rass 705012 28203 0 FRB20220914A 2025:012:09:52:18.171 24.0 ACIS-S NONE 281.9953 73.3237 16.06 95.32 110.51 dss pspc rass 201834 CCT 30713 0 Gaia DR2 67500740681 2025:012:17:10:24.011 10.0 ACIS-S NONE 118.2640 22.5408 111.99 176.12 101.69 dss pspc rass 503505 28777 0 SN 1941C 2025:012:20:41:05.011 11.3 HRC-I NONE 182.3298 29.9115 80.45 119.06 57.23 dss pspc rass 802201 30720 0 Abell 795 2025:013:00:16:45.762 9.9 ACIS-S NONE 141.0313 14.1729 62.00 153.75 53.31 dss pspc rass ---- 42779 CAL-ER (CTI02) 2025:013:03:21:49.294 3.0 -- -- 119.0000 20.4000 73.80 175.79 22.51
Previous weeks' short-term schedules.
Last modified: 01/10/25
