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 ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- ---- 42641 CAL-ER (IAT01) 2025:054:23:01:52.004 0.9 -- -- 218.9730 23.8580 77.60 119.51 67.43 705329 30551 1 NGC 5548 2025:054:23:58:34.004 14.0 HRC-S LETG 214.5034 25.1192 78.00 123.51 4.50 dss pspc rass ---- 42640 CAL-ER (CAL01) 2025:055:04:04:51.378 0.0 -- -- 218.9730 23.8580 92.48 119.65 16.88 704958 28560 0 PSO J170.8326+20.208 2025:055:04:31:33.670 13.7 ACIS-S NONE 170.8544 20.1978 131.99 163.12 48.82 dss pspc rass 901860 28132 0 IGR J22516+5610 2025:055:08:58:37.869 5.0 ACIS-S NONE 342.8594 56.1739 354.17 65.78 106.37 dss pspc rass ---- 42639 CAL-ER (PER07) 2025:055:11:02:53.021 1.2 -- -- 159.0000 12.0000 150.89 177.05 114.32 ---- 42638 CAL-ER (PER01) 2025:055:11:58:42.881 0.9 -- -- 153.2910 11.5510 243.41 175.27 91.49 ---- 42637 CAL-ER (PER02) 2025:055:12:54:44.708 8.0 -- -- 27.3636 34.6920 303.42 64.45 111.81 ---- 42636 CAL-ER (PER03) 2025:055:15:41:28.266 0.9 -- -- 129.8100 33.3399 233.34 144.85 80.52 ---- 42635 CAL-ER (CAL01) 2025:055:16:16:05.301 0.4 -- -- 153.2910 11.5510 243.44 175.10 36.07 ---- 42634 CAL-ER (PER04) 2025:055:16:59:04.405 0.9 -- -- 47.7000 46.8000 291.09 83.47 93.68 ---- 42633 CAL-ER (CAL01) 2025:055:17:22:00.000 0.9 -- -- 47.7000 46.8000 291.10 83.46 0.01 ---- 42632 CAL-ER (CAL01) 2025:055:18:06:00.000 4.0 -- -- 47.7000 46.8000 291.12 83.43 0.02 ---- 42631 CAL-ER (CAL01) 2025:055:19:48:59.725 0.9 -- -- 153.2910 11.5510 243.74 174.95 93.73 ---- 42630 CAL-ER (PER05) 2025:055:20:34:19.163 0.9 -- -- 154.7070 6.9010 306.98 176.04 63.63 704981 30587 0 Abell 370 2025:055:22:25:53.194 15.2 ACIS-I NONE 39.9482 -1.5705 272.00 62.08 119.87 dss pspc rass 705307 30239 0 Center of COSMOS-Web 2025:056:03:20:04.118 14.3 ACIS-I NONE 150.3186 2.3031 306.00 169.57 114.07 dss pspc rass 704981 30823 0 Abell 370 2025:056:07:58:35.952 14.1 ACIS-I NONE 39.9465 -1.5699 275.50 61.68 113.39 dss pspc rass 705307 30820 0 Center of COSMOS-Web 2025:056:12:33:58.557 11.7 ACIS-I NONE 150.3185 2.3069 297.00 169.38 111.95 dss pspc rass 802196 30278 0 Perseus cluster 2025:056:16:29:19.468 15.0 ACIS-I NONE 49.9291 41.5266 282.01 82.26 111.82 dss pspc rass 705329 30553 1 NGC 5548 2025:056:21:21:44.468 12.3 HRC-S LETG 214.5125 25.1180 97.99 124.84 114.72 dss pspc rass 201582 26975 2 Orion Nebula Cluster 2025:057:01:38:43.926 13.0 ACIS-I NONE 83.8048 -5.3762 280.47 103.62 163.08 dss pspc rass 705307 30821 0 Center of COSMOS-Web 2025:057:05:46:33.059 12.0 ACIS-I NONE 150.3193 2.3027 306.00 169.00 70.44 dss pspc rass 802214 P1 30032 0 ACT-CL J0454.7-2016 2025:057:09:39:37.385 9.0 ACIS-S NONE 73.6801 -20.2846 279.66 90.95 79.07 dss pspc rass 705329 30555 1 NGC 5548 2025:057:13:04:13.499 10.6 HRC-S LETG 214.5110 25.1202 97.99 125.29 175.96 dss pspc rass 802196 30284 0 Perseus cluster 2025:057:16:42:34.753 10.2 ACIS-I NONE 49.9327 41.5238 280.61 81.32 114.47 dss pspc rass 601641 29646 0 NGC2775 2025:057:20:07:45.226 15.7 ACIS-S NONE 137.5756 7.0343 275.40 157.92 90.94 dss pspc rass 705253 P1 29965 0 SDSS J112306.96+3028 2025:058:01:08:10.002 3.0 ACIS-S NONE 170.8079 30.4805 163.59 155.77 105.96 dss pspc rass ---- 42629 CAL-ER (CAL01) 2025:058:02:21:27.385 0.9 -- -- 159.0000 12.0000 196.12 176.29 35.30 ---- 42628 CAL-ER (CAL01) 2025:058:03:03:25.844 0.9 -- -- 153.2910 11.5510 245.50 172.63 48.52 ---- 42627 CAL-ER (CAL01) 2025:058:03:59:28.806 7.0 -- -- 27.3636 34.6920 304.66 62.04 111.90 ---- 42626 CAL-ER (CAL01) 2025:058:06:29:32.359 0.9 -- -- 129.8100 33.3399 235.21 142.46 80.52 ---- 42625 CAL-ER (CAL01) 2025:058:07:30:00.000 0.9 -- -- 29.0000 49.0000 308.28 71.44 71.94 ---- 42624 CAL-ER (CAL01) 2025:058:08:50:00.000 0.9 -- -- 29.0000 49.0000 308.31 71.40 0.03 ---- 42623 CAL-ER (CAL01) 2025:058:09:33:00.000 3.0 -- -- 29.0000 49.0000 308.33 71.38 0.02 ---- 42622 CAL-ER (CAL01) 2025:058:10:55:45.495 0.9 -- -- 140.0000 33.0000 221.86 148.94 77.66 ---- 42621 CAL-ER (CAL01) 2025:058:11:44:11.976 3.0 -- -- 29.0000 49.0000 308.40 71.31 77.66 601694 29884 0 SDSS J095322.22+2026 2025:058:13:41:41.225 15.3 ACIS-S NONE 148.3341 20.4532 229.00 163.08 92.64 dss pspc rass 704981 30824 0 Abell 370 2025:058:18:36:26.448 12.9 ACIS-I NONE 39.9472 -1.5714 276.00 59.36 109.14 dss pspc rass ---- 42620 CAL-ER (IAT02) 2025:058:22:38:52.453 0.0 -- -- 80.0000 65.0000 265.15 101.23 73.95 705329 30556 1 NGC 5548 2025:058:23:18:38.453 11.8 HRC-S LETG 214.5113 25.1197 97.99 126.26 92.84 dss pspc rass 704958 30813 0 PSO J170.8326+20.208 2025:059:03:00:10.016 15.2 ACIS-S NONE 170.8555 20.1945 125.99 164.59 41.69 dss pspc rass 503553 P1 29838 0 PSR J1809-2332 2025:059:07:54:22.407 15.0 ACIS-I NONE 272.4714 -23.5514 86.00 67.38 114.18 dss pspc rass 704958 30814 0 PSO J170.8326+20.208 2025:059:12:45:14.791 11.3 ACIS-S NONE 170.8560 20.1942 125.99 164.70 114.18 dss pspc rass ---- 42619 CAL-ER (IAT04) 2025:059:16:21:02.787 0.0 -- -- 138.5869 66.3614 206.34 119.41 74.10 802196 30285 0 Perseus cluster 2025:059:16:48:33.057 13.0 ACIS-I NONE 49.9282 41.5227 290.52 79.46 52.45 dss pspc rass 705329 30822 1 NGC 5548 2025:059:21:07:38.057 10.5 HRC-S LETG 214.5115 25.1194 97.99 126.89 116.44 dss pspc rass 601642 29647 0 NGC3059 2025:060:00:45:04.310 18.5 ACIS-S NONE 147.5326 -73.9314 345.65 97.85 121.22 dss pspc rass ---- 42618 CAL-ER (IAT05) 2025:060:06:19:05.852 0.0 -- -- 121.3987 -15.1503 296.67 133.68 66.12 601694 30819 0 SDSS J095322.22+2026 2025:060:06:52:21.705 14.8 ACIS-S NONE 148.3337 20.4518 229.00 161.50 78.36 dss pspc rass 201773 29704 3 DQ Tau periastron 3 2025:060:11:31:02.529 1.5 ACIS-I NONE 71.7081 17.0122 277.39 91.65 74.31 dss pspc rass 705359 CCT 30812 0 B2.3 0420+39A 2025:060:12:19:55.529 17.0 ACIS-S NONE 65.9250 40.0905 279.87 89.99 23.62 dss pspc rass 201774 29705 3 DQ Tau periastron 3 2025:060:17:22:58.970 1.5 ACIS-I NONE 71.7084 17.0117 277.35 91.41 23.62 dss pspc rass ---- 42617 CAL-ER (CAL01) 2025:060:18:23:15.889 3.0 -- -- 159.0000 12.0000 217.69 174.24 89.02 ---- 42616 CAL-ER (CAL01) 2025:060:19:34:16.746 0.9 -- -- 155.8000 10.6000 245.07 172.57 26.97 ---- 42615 CAL-ER (CAL01) 2025:060:20:30:51.811 7.0 -- -- 27.3636 34.6920 305.97 59.60 114.30 ---- 42614 CAL-ER (CAL01) 2025:060:23:00:55.389 0.9 -- -- 129.8100 33.3399 236.92 139.99 80.52 ---- 42613 CAL-ER (CAL01) 2025:060:23:47:27.290 0.9 -- -- 41.3146 38.2202 296.40 70.89 69.07 ---- 42612 CAL-ER (CAL01) 2025:061:00:17:00.000 0.9 -- -- 41.3146 38.2202 296.41 70.87 0.01 ---- 42611 CAL-ER (CAL01) 2025:061:01:00:00.000 6.5 -- -- 41.3146 38.2202 296.42 70.85 0.02 ---- 42610 CAL-ER (CAL01) 2025:061:03:26:40.401 1.4 -- -- 155.8000 10.6000 245.24 172.25 102.78 201775 29706 3 DQ Tau periastron 3 2025:061:04:49:14.388 1.5 ACIS-I NONE 71.7083 17.0118 277.31 90.94 81.64 dss pspc rass 601641 30815 0 NGC2775 2025:061:05:44:30.678 10.0 ACIS-S NONE 137.5758 7.0338 277.00 154.79 66.47 dss pspc rass 601642 30817 0 NGC3059 2025:061:09:08:25.318 15.0 ACIS-S NONE 147.5360 -73.9312 344.37 98.28 97.85 dss pspc rass 201776 29707 3 DQ Tau periastron 3 2025:061:13:56:47.844 1.5 ACIS-I NONE 71.7082 17.0120 277.29 90.55 102.94 dss pspc rass 601642 30818 0 NGC3059 2025:061:15:00:06.671 15.0 ACIS-S NONE 147.5369 -73.9311 340.00 98.35 102.66 dss pspc rass 201777 29708 3 DQ Tau periastron 3 2025:061:19:48:28.113 1.5 ACIS-I NONE 71.7096 17.0115 274.00 90.30 102.86 dss pspc rass 601641 30816 0 NGC2775 2025:061:20:43:39.150 10.3 ACIS-S NONE 137.5763 7.0329 271.62 154.18 66.08 dss pspc rass
Seq # NB ObsID Constr. Target Start Time SI Grat RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- ---- 42661 CAL-ER (PER17) 2025:047:15:02:42.597 3.0 -- -- 160.8729 4.1296 52.30 166.56 162.95 ---- 42660 CAL-ER (PER18) 2025:047:17:20:00.000 0.9 -- -- 231.0669 -42.0958 74.94 88.42 78.47 ---- 42659 CAL-ER (PER03) 2025:047:18:30:19.418 0.9 -- -- 47.2421 45.3172 287.67 89.79 176.13 ---- 42658 CAL-ER (CAL01) 2025:047:19:00:00.000 0.9 -- -- 47.2421 45.3172 287.68 89.77 0.01 ---- 42657 CAL-ER (CAL01) 2025:047:19:45:00.000 3.0 -- -- 47.2421 45.3172 287.70 89.74 0.02 ---- 42656 CAL-ER (PER04) 2025:047:21:09:34.428 0.9 -- -- 146.7297 15.1835 228.95 175.41 85.83 704956 28147 0 IRAS 03582+6012 2025:048:00:31:02.138 33.0 ACIS-S NONE 60.6092 60.3673 275.89 100.59 76.50 dss pspc rass 802201 30372 0 Abell 795 2025:048:10:14:46.471 11.0 ACIS-S NONE 141.0125 14.1730 258.21 170.19 82.07 dss pspc rass 705118 28847 0 Abell 370 2025:048:13:56:04.922 14.0 ACIS-I NONE 39.9473 -1.5715 276.00 69.10 101.13 dss pspc rass 802201 30807 0 Abell 795 2025:048:18:27:23.416 11.5 ACIS-S NONE 141.0125 14.1733 258.03 169.84 101.14 dss pspc rass 704981 28610 0 Abell 370 2025:048:22:17:03.115 14.5 ACIS-I NONE 39.9461 -1.5717 279.00 68.76 101.23 dss pspc rass 291770 29538 1 Capella 2025:049:03:01:08.115 14.5 HRC-I HETG 79.1615 46.0144 265.56 110.64 58.88 dss pspc rass 601664 30181 0 NGC5134 2025:049:07:56:04.728 31.4 ACIS-S NONE 201.3367 -21.1364 58.00 121.25 170.00 dss pspc rass 291770 30806 1 Capella 2025:049:17:32:38.160 14.5 HRC-I HETG 79.1637 46.0108 265.01 110.09 169.76 dss pspc rass ---- 42655 CAL-ER (IAT02) 2025:049:21:55:35.407 0.0 -- -- 154.3739 72.4589 177.63 118.97 46.19 704958 28567 0 PSO J170.8326+20.208 2025:049:22:26:59.269 18.3 ACIS-S NONE 170.8492 20.1941 116.99 160.12 69.96 dss pspc rass ---- 42654 CAL-ER (PER07) 2025:050:04:12:01.440 0.9 -- -- 303.0000 33.0000 37.47 52.51 110.28 ---- 42653 CAL-ER (PER02) 2025:050:05:04:35.486 0.9 -- -- 49.9558 27.2406 285.88 84.27 96.23 ---- 42652 CAL-ER (PER08) 2025:050:05:51:55.901 3.0 -- -- 130.1888 19.9728 251.42 156.82 72.71 ---- 42651 CAL-ER (PER09) 2025:050:08:00:00.000 0.9 -- -- 40.0000 40.0000 293.44 80.59 78.23 ---- 42650 CAL-ER (CAL01) 2025:050:10:28:00.000 0.9 -- -- 40.0000 40.0000 293.47 80.50 0.03 ---- 42649 CAL-ER (CAL01) 2025:050:11:10:00.000 0.9 -- -- 40.0000 40.0000 293.48 80.47 0.02 802201 30808 0 Abell 795 2025:050:14:39:29.388 15.0 ACIS-S NONE 141.0131 14.1705 256.94 168.02 91.34 dss pspc rass 705118 30805 0 Abell 370 2025:050:19:27:28.627 15.0 ACIS-I NONE 39.9480 -1.5733 277.00 66.97 101.19 dss pspc rass 802201 30374 0 Abell 795 2025:051:00:15:27.891 12.0 ACIS-S NONE 141.0127 14.1723 256.87 167.60 101.19 dss pspc rass 704981 28612 0 Abell 370 2025:051:04:13:27.161 14.0 ACIS-I NONE 39.9472 -1.5720 277.00 66.61 101.20 dss pspc rass 802201 30809 0 Abell 795 2025:051:08:44:46.478 13.0 ACIS-S NONE 141.0125 14.1736 256.76 167.24 101.20 dss pspc rass 704981 28630 0 Abell 370 2025:051:12:59:26.322 14.0 ACIS-I NONE 39.9462 -1.5712 278.00 66.25 101.24 dss pspc rass 802201 30376 0 Abell 795 2025:051:17:30:46.239 13.0 ACIS-S NONE 141.0122 14.1748 256.62 166.87 101.24 dss pspc rass 704981 30801 0 Abell 370 2025:051:21:45:24.594 13.0 ACIS-I NONE 39.9468 -1.5694 274.00 65.91 101.13 dss pspc rass 601595 28532 0 Sextans A 2025:052:02:04:18.771 12.8 ACIS-S NONE 152.7474 -4.7007 336.00 164.54 120.31 dss pspc rass 704981 30803 0 Abell 370 2025:052:06:19:56.763 12.0 ACIS-I NONE 39.9468 -1.5686 273.00 65.57 120.60 dss pspc rass ---- 42648 CAL-ER (IAT01) 2025:052:10:04:48.627 0.0 -- -- 41.6127 56.8436 295.03 86.72 62.39 601593 28099 0 MRK 1486 2025:052:10:36:29.030 32.0 ACIS-S NONE 209.9873 57.4166 98.88 117.10 71.21 dss pspc rass ---- 42647 CAL-ER (PER10) 2025:052:20:02:33.360 3.0 -- -- 83.2784 51.9890 261.99 109.36 76.12 ---- 42646 CAL-ER (PER11) 2025:052:21:21:13.141 3.0 -- -- 146.3909 18.5831 226.86 168.23 59.23 ---- 42645 CAL-ER (CAL01) 2025:052:23:30:00.000 0.9 -- -- 35.6575 41.6224 298.03 75.92 92.26 ---- 42644 CAL-ER (CAL01) 2025:053:01:55:00.000 0.9 -- -- 35.6575 41.6224 298.07 75.83 0.04 ---- 42643 CAL-ER (CAL01) 2025:053:02:40:00.000 3.0 -- -- 35.6575 41.6224 298.09 75.80 0.02 ---- 42642 CAL-ER (PER14) 2025:053:04:03:47.778 3.0 -- -- 62.1385 -35.0191 276.63 81.53 82.33 601595 30799 0 Sextans A 2025:053:06:21:36.848 16.0 ACIS-S NONE 152.7504 -4.7006 331.50 164.83 88.92 dss pspc rass 704981 30804 0 Abell 370 2025:053:11:30:11.188 14.0 ACIS-I NONE 39.9479 -1.5721 275.00 64.41 118.83 dss pspc rass 802201 30810 0 Abell 795 2025:053:16:01:29.996 13.0 ACIS-S NONE 141.0126 14.1731 255.97 164.93 101.16 dss pspc rass 704981 30802 0 Abell 370 2025:053:20:16:08.166 12.5 ACIS-I NONE 39.9481 -1.5704 272.00 64.05 101.11 dss pspc rass 402553 P1 29771 0 1eRASS J144611.0-172 2025:054:00:36:00.871 1.0 ACIS-S NONE 221.5422 -17.4106 60.00 109.90 162.20 dss pspc rass 704971 28582 0 NGC 4102 2025:054:01:29:43.063 30.0 ACIS-S NONE 181.6353 52.7020 137.97 132.59 96.91 dss pspc rass 503546 P1 29831 0 SN 2023zaw 2025:054:10:17:22.107 20.0 ACIS-S NONE 67.3055 70.4490 272.65 99.49 54.68 dss pspc rass 704958 30800 0 PSO J170.8326+20.208 2025:054:16:26:08.937 12.0 ACIS-S NONE 170.8539 20.1972 129.99 162.90 89.76 dss pspc rass 201809 P1 29740 0 4FGL J1902.5+0654 2025:054:20:26:22.991 7.5 ACIS-I NONE 285.6501 6.8942 72.64 53.75 111.30 dss pspc rass
Previous weeks' short-term schedules.
Last modified: 02/21/25
