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.

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.

JUN0225B

Seq # NB ObsID Constr. Target Start Time SI Grat RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- 705001 28192 0 NGC 6657 2025:153:20:39:33.090 10.0 ACIS-S NONE 278.2873 34.0570 150.99 117.90 106.96 dss pspc rass 503496 28517 1 PSR J1101-6101 2025:154:00:20:28.260 15.0 ACIS-I NONE 165.4167 -61.0159 262.64 111.51 174.39 dss pspc rass 503477 30956 0 XMMU J170147.3-42140 2025:154:04:58:24.653 19.0 ACIS-I NONE 255.4480 -42.2468 355.00 159.67 55.98 dss pspc rass 291768 29536 1 HZ43 2025:154:11:02:10.753 10.0 HRC-S LETG 199.0991 29.1170 220.00 108.10 142.21 dss pspc rass 802152 28707 0 1E 2215.7-0404 / 1E 2025:154:14:34:17.268 34.2 ACIS-I NONE 334.6282 -3.7826 117.00 97.78 134.74 dss pspc rass 503583 30492 3 1E 161348-5055.1 2025:155:00:45:17.186 29.3 ACIS-S NONE 244.3652 -51.0430 345.97 150.71 111.22 dss pspc rass 291768 30960 1 HZ43 2025:155:09:39:21.761 10.0 HRC-S LETG 199.0981 29.1152 220.00 107.35 134.59 dss pspc rass 705120 28849 0 [ZCA2021] BOSS1244 S 2025:155:12:56:01.925 28.0 ACIS-I NONE 190.8701 35.9141 235.11 97.61 14.42 dss pspc rass ---- 42372 CAL-ER (IAT01) 2025:155:21:10:55.041 0.0 -- -- 256.3249 6.6306 173.36 150.69 73.88 901876 P1 29902 0 IGR J17162-2117 2025:155:21:43:35.531 5.0 ACIS-I NONE 259.0834 -21.2996 102.67 174.08 75.71 dss pspc rass ---- 42371 CAL-ER (PER04) 2025:155:23:49:28.957 3.0 -- -- 249.1170 -18.4477 220.73 174.61 121.69 ---- 42370 CAL-ER (PER03) 2025:156:01:22:32.905 1.4 -- -- 132.0000 20.0000 259.00 54.70 124.05 ---- 42369 CAL-ER (CAL01) 2025:156:02:28:55.415 4.0 -- -- 249.1170 -18.4477 221.37 174.52 123.94 ---- 42368 CAL-ER (CAL01) 2025:156:04:06:07.959 0.3 -- -- 170.0000 7.0000 246.76 93.64 87.94 ---- 42367 CAL-ER (CAL01) 2025:156:04:19:37.959 3.0 -- -- 170.0000 7.0000 246.76 93.63 0.00 ---- 42366 CAL-ER (PER08) 2025:156:07:20:00.000 0.9 -- -- 341.0000 26.0000 111.31 82.19 146.12 ---- 42365 CAL-ER (PER09) 2025:156:08:07:20.727 3.0 -- -- 275.6966 -9.6089 123.71 154.91 72.73 802116 28669 0 NGC410 2025:156:10:19:49.809 17.0 ACIS-S NONE 17.7559 33.1455 88.99 49.72 105.36 dss pspc rass 705370 CCT 30954 0 1RXSJ174155.3-121157 2025:156:15:44:21.087 11.0 ACIS-S NONE 265.5037 -12.2097 133.89 164.65 115.60 dss pspc rass 802116 30958 0 NGC410 2025:156:19:28:52.378 14.6 ACIS-S NONE 17.7568 33.1438 88.99 50.04 115.60 dss pspc rass 890243 29613 2 A1795 2025:157:00:15:17.363 20.0 ACIS-I NONE 207.2087 26.5986 221.00 113.20 121.72 dss pspc rass 402462 28008 0 IGR J16320-4751 2025:157:06:32:40.851 25.0 ACIS-S HETG 247.9684 -47.8752 339.97 154.23 128.51 dss pspc rass 601704 P1 29894 0 NGVS J123104.48+1156 2025:157:14:08:11.255 22.0 ACIS-S NONE 187.7718 11.9698 241.96 106.02 105.03 dss pspc rass 201708 29444 1 SZ Cha 2025:157:20:51:54.410 15.0 ACIS-S NONE 164.5381 -77.2637 264.43 112.00 96.99 dss pspc rass 802143 28684 0 Abell 3017 2025:158:01:30:04.442 15.5 ACIS-S NONE 36.4739 -41.9104 134.00 73.79 57.00 dss pspc rass 402567 TOO 29785 2 4U 1630-47 2025:158:06:23:13.175 30.8 ACIS-S HETG 248.4726 -47.3962 346.97 154.72 86.91 dss pspc rass ---- 42364 CAL-ER (PER12) 2025:158:15:32:01.731 3.0 -- -- 91.4000 -43.9000 195.63 68.22 86.54 ---- 42363 CAL-ER (PER13) 2025:158:17:01:30.729 3.0 -- -- 251.0320 -27.6415 317.86 173.55 107.92 ---- 42362 CAL-ER (CAL01) 2025:158:18:30:06.997 3.0 -- -- 90.5868 -48.7430 194.28 72.75 103.97 503477 30957 0 XMMU J170147.3-42140 2025:159:00:37:07.323 10.0 ACIS-I NONE 255.4489 -42.2467 358.42 160.54 88.16 dss pspc rass 901881 P1 29907 0 IGR J17538-2544 2025:159:03:55:25.037 5.0 ACIS-I NONE 268.4245 -25.7715 76.00 168.44 72.58 dss pspc rass 802143 30959 0 Abell 3017 2025:159:05:56:34.999 14.5 ACIS-S NONE 36.4746 -41.9101 144.00 74.43 100.50 dss pspc rass 402462 30955 0 IGR J16320-4751 2025:159:10:33:55.848 25.0 ACIS-S HETG 247.9687 -47.8729 334.97 154.04 90.81 dss pspc rass 705229 P1 29941 0 QSO B1033+1342 2025:159:18:10:23.833 20.0 ACIS-S NONE 159.1142 13.4744 244.00 77.87 109.35 dss pspc rass

JUN0225A

Seq # NB ObsID Constr. Target Start Time SI Grat RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ ------------- 503477 28074 0 XMMU J170147.3-42140 2025:153:00:22:33.984 23.1 ACIS-I NONE 255.4521 -42.2457 358.00 159.34 57.71 dss pspc rass 402542 P1 29760 0 1eRASS J120806.9+291 2025:153:07:35:27.564 1.9 ACIS-S NONE 182.0398 29.3066 224.99 96.66 142.54 dss pspc rass ---- 42372 CAL-ER (PER01) 2025:153:08:50:57.096 0.9 -- -- 67.9990 -62.1990 177.93 84.40 127.40 ---- 42371 CAL-ER (PER02) 2025:153:09:44:21.450 7.0 -- -- 254.0000 -25.0000 49.00 175.57 100.00 ---- 42370 CAL-ER (CAL01) 2025:153:12:19:39.283 3.0 -- -- 57.1379 -54.3255 167.46 77.38 104.09 ---- 42369 CAL-ER (CAL01) 2025:153:15:00:00.000 3.0 -- -- 254.0000 -25.0000 50.08 175.73 104.37 802142 28327 0 PSZ2G358.94-70.57 2025:153:18:11:02.804 6.5 ACIS-I NONE 352.7995 -36.5617 106.01 93.90 82.11 dss pspc rass 705001 28192 0 NGC 6657 2025:153:20:39:21.288 10.0 ACIS-S NONE 278.2873 34.0570 150.99 117.90 106.96 dss pspc rass 503496 28517 1 PSR J1101-6101 2025:154:00:20:16.461 15.0 ACIS-I NONE 165.4166 -61.0158 262.64 111.51 174.39 dss pspc rass 503477 30956 0 XMMU J170147.3-42140 2025:154:04:58:12.855 19.0 ACIS-I NONE 255.4480 -42.2468 355.00 159.67 55.98 dss pspc rass 291768 29536 1 HZ43 2025:154:11:01:58.955 10.0 HRC-S LETG 199.0991 29.1171 220.00 108.10 142.21 dss pspc rass 802152 28707 0 1E 2215.7-0404 / 1E 2025:154:14:34:05.469 34.2 ACIS-I NONE 334.6282 -3.7826 117.00 97.78 134.74 dss pspc rass 503583 30492 3 1E 161348-5055.1 2025:155:00:45:05.388 29.3 ACIS-S NONE 244.3652 -51.0430 345.97 150.71 111.22 dss pspc rass 291768 30960 1 HZ43 2025:155:09:39:09.962 10.0 HRC-S LETG 199.0982 29.1152 220.00 107.35 134.59 dss pspc rass 705120 28849 0 [ZCA2021] BOSS1244 S 2025:155:12:55:50.126 28.1 ACIS-I NONE 190.8701 35.9141 235.11 97.61 14.42 dss pspc rass ---- 42368 CAL-ER (IAT01) 2025:155:21:10:55.239 0.0 -- -- 256.3249 6.6306 173.36 150.69 73.88 901876 P1 29902 0 IGR J17162-2117 2025:155:21:43:35.755 5.0 ACIS-I NONE 259.0834 -21.2996 102.67 174.08 75.71 dss pspc rass ---- 42367 CAL-ER (PER04) 2025:155:23:49:28.995 3.0 -- -- 249.1170 -18.4477 220.73 174.61 121.69 ---- 42366 CAL-ER (PER03) 2025:156:01:22:32.940 1.4 -- -- 132.0000 20.0000 259.00 54.70 124.05 ---- 42365 CAL-ER (CAL01) 2025:156:02:28:55.448 4.0 -- -- 249.1170 -18.4477 221.37 174.52 123.94 ---- 42364 CAL-ER (CAL01) 2025:156:04:06:07.988 0.3 -- -- 170.0000 7.0000 246.76 93.64 87.94 ---- 42363 CAL-ER (CAL01) 2025:156:04:19:37.988 3.0 -- -- 170.0000 7.0000 246.76 93.63 0.00 ---- 42362 CAL-ER (PER08) 2025:156:07:20:00.000 0.9 -- -- 341.0000 26.0000 111.31 82.19 146.12 ---- 42361 CAL-ER (PER09) 2025:156:08:07:20.727 3.0 -- -- 275.6966 -9.6089 123.71 154.91 72.73 802116 28669 0 NGC410 2025:156:10:19:49.809 17.0 ACIS-S NONE 17.7559 33.1455 88.99 49.72 105.36 dss pspc rass 705370 CCT 30954 0 1RXSJ174155.3-121157 2025:156:15:44:21.087 11.0 ACIS-S NONE 265.5037 -12.2097 133.89 164.65 115.60 dss pspc rass 802116 30958 0 NGC410 2025:156:19:28:52.379 14.6 ACIS-S NONE 17.7568 33.1437 88.99 50.04 115.60 dss pspc rass 890243 29613 2 A1795 2025:157:00:15:17.363 20.0 ACIS-I NONE 207.2087 26.5986 221.00 113.20 121.72 dss pspc rass 402462 28008 0 IGR J16320-4751 2025:157:06:32:40.852 25.0 ACIS-S HETG 247.9684 -47.8752 339.97 154.23 128.51 dss pspc rass 601704 P1 29894 0 NGVS J123104.48+1156 2025:157:14:08:11.256 22.0 ACIS-S NONE 187.7718 11.9698 241.96 106.02 105.03 dss pspc rass 201708 29444 1 SZ Cha 2025:157:20:51:54.410 15.0 ACIS-S NONE 164.5381 -77.2637 264.43 112.00 96.99 dss pspc rass 802143 28684 0 Abell 3017 2025:158:01:30:04.441 15.5 ACIS-S NONE 36.4739 -41.9104 134.00 73.79 57.00 dss pspc rass 402567 TOO 29785 2 4U 1630-47 2025:158:06:23:13.174 30.8 ACIS-S HETG 248.4725 -47.3962 346.97 154.72 86.91 dss pspc rass ---- 42360 CAL-ER (PER12) 2025:158:15:32:01.731 3.0 -- -- 91.4000 -43.9000 195.63 68.22 86.54 ---- 42359 CAL-ER (PER13) 2025:158:17:01:30.721 3.0 -- -- 251.0320 -27.6415 317.87 173.55 107.92 ---- 42358 CAL-ER (CAL01) 2025:158:18:30:06.979 3.0 -- -- 90.5868 -48.7430 194.28 72.75 103.97 503477 30957 0 XMMU J170147.3-42140 2025:159:00:37:07.323 10.0 ACIS-I NONE 255.4489 -42.2467 358.42 160.54 88.16 dss pspc rass 901881 P1 29907 0 IGR J17538-2544 2025:159:03:55:25.043 5.0 ACIS-I NONE 268.4245 -25.7715 76.00 168.44 72.58 dss pspc rass 802143 30959 0 Abell 3017 2025:159:05:56:35.005 14.5 ACIS-S NONE 36.4746 -41.9101 144.00 74.43 100.50 dss pspc rass 402462 30955 0 IGR J16320-4751 2025:159:10:33:55.854 25.0 ACIS-S HETG 247.9687 -47.8729 334.97 154.04 90.81 dss pspc rass 705229 P1 29941 0 QSO B1033+1342 2025:159:18:10:23.839 20.0 ACIS-S NONE 159.1142 13.4744 244.00 77.87 109.35 dss pspc rass

Last modified: 06/02/25

The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA. Email: cxchelp@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2025. All rights reserved.