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.

There is a link to previous weeks' short-term schedules at the bottom of this page.

AUG1726A

Seq # NB ObsID Constr. Target Start Time SI Grat Active Chips RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ ------------- 705559 CCT 32499 0 SWIFT J2157.4-3316 2026:229:01:46:51.809 10.0 ACIS-I NONE I0,I1,I2,I3 329.3586 -33.2640 9.26 160.05 53.99 dss pspc rass 201890 31499 0 TWA 7 2026:229:05:15:56.809 14.0 HRC-I HETG 160.6244 -33.6713 197.01 49.11 112.69 dss pspc rass 705278 29990 0 NGC 7213 2026:229:09:46:46.101 12.1 ACIS-S HETG S2,S3 332.3175 -47.1667 10.21 145.91 98.95 dss pspc rass 705305 30234 0 [vD2023]1 2026:229:13:42:59.395 29.9 ACIS-I NONE I0,I1,I2,I3 40.4405 -8.3506 101.49 107.52 85.75 dss pspc rass ---- 41220 CAL-ER (PER01) 2026:229:22:31:49.807 3.0 -- -- 331.6500 -14.7000 73.49 175.22 68.48 ---- 41219 CAL-ER (PER03) 2026:230:01:00:00.000 3.0 -- -- 323.1000 -12.9000 264.10 176.14 167.38 ---- 41218 CAL-ER (PER02) 2026:230:04:00:00.000 3.0 -- -- 203.0000 28.0000 273.87 53.83 123.18 ---- 41217 CAL-ER (CAL01) 2026:230:09:00:00.000 3.0 -- -- 323.1000 -12.9000 266.10 175.85 123.36 705295 30007 0 MaNGA 8982-9101 2026:230:11:00:09.882 12.0 ACIS-S NONE S2,S3 201.7136 26.5912 271.71 52.41 124.56 dss pspc rass 100238 31037 0 TIC466376085 2026:230:15:02:34.882 8.0 HRC-I NONE 326.8605 6.6049 195.00 160.32 118.26 dss pspc rass 201810 30089 0 TV Cassiopeia 2026:230:17:46:37.046 40.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 4.8281 59.1390 142.99 101.82 65.80 dss pspc rass 100238 32504 0 TIC466376085 2026:231:05:35:42.046 9.5 HRC-I NONE 326.8605 6.6049 183.61 160.50 62.13 dss pspc rass 503645 31167 3 SN 2023ixf 2026:231:08:51:41.204 15.0 ACIS-S NONE S2,S3 210.9107 54.3117 278.02 63.82 99.69 dss pspc rass 503545 29830 2 SN 1986J 2026:231:13:36:16.108 15.0 ACIS-S NONE I2,I3,S2,S3 35.6305 42.3323 114.89 97.51 85.87 dss pspc rass 100238 32505 0 TIC466376085 2026:231:18:28:41.108 6.5 HRC-I NONE 326.8605 6.6049 194.00 160.63 82.02 dss pspc rass 503645 32506 3 SN 2023ixf 2026:231:20:54:34.008 13.0 ACIS-S NONE S2,S3 210.9107 54.3117 278.02 63.68 99.22 dss pspc rass 503554 31002 0 PSR J1813-1246 2026:232:01:05:53.257 13.0 ACIS-I NONE I0,I1,I2,I3 273.3490 -12.7668 263.57 125.93 86.19 dss pspc rass 503537 30130 0 SNR G1.9+0.3 2026:232:05:03:49.257 28.6 ACIS-S NONE S2,S3 267.1875 -27.1667 271.12 120.58 18.26 dss pspc rass ---- 41216 CAL-ER (PER04) 2026:232:13:28:28.148 3.0 -- -- 326.0000 -14.0000 295.02 176.37 56.14 ---- 41215 CAL-ER (PER05) 2026:232:17:00:00.000 3.0 -- -- 333.0000 -11.4000 106.71 176.45 170.17 ---- 41214 CAL-ER (CAL01) 2026:232:19:30:00.000 3.0 -- -- 103.0000 42.0000 67.81 50.07 128.35 ---- 41213 CAL-ER (PER06) 2026:233:00:00:00.000 3.0 -- -- 150.0000 -37.0000 180.27 49.29 135.47 705278 32501 0 NGC 7213 2026:233:02:02:49.752 19.0 ACIS-S HETG S2,S3 332.3175 -47.1667 4.12 145.02 95.80 dss pspc rass 802251 P1 31452 0 ACT-CL J0307.0-0628 2026:233:07:55:15.672 12.0 ACIS-S NONE I2,I3,S1,S2,S3 46.7685 -6.4795 100.95 104.31 91.19 dss pspc rass 201667 30447 1 G29-38 2026:233:11:57:40.672 7.5 HRC-I NONE 352.1985 5.2484 128.53 152.09 61.93 dss pspc rass 802204 30408 0 ClG J0242-2132 2026:233:14:33:10.812 28.0 ACIS-S NONE I3,S1,S2,S3 40.6496 -21.5406 94.56 112.51 67.51 dss pspc rass 705225 29937 3 NGC 1358 2026:233:22:45:07.812 30.0 ACIS-S NONE I3,S2,S3,S4 53.4153 -5.0895 102.00 98.09 21.06 dss pspc rass 201667 32503 1 G29-38 2026:234:07:47:32.812 7.5 HRC-I NONE 352.1985 5.2484 129.03 152.85 67.06 dss pspc rass 705560 CCT 32500 0 NGC 7378 2026:234:10:17:02.473 9.5 ACIS-S NONE S2,S3,S4 341.9487 -11.8166 93.00 169.35 40.48 dss pspc rass 705402 31684 0 SDSS J014837.63+0600 2026:234:13:21:56.717 33.9 ACIS-I NONE I0,I1,I2,I3 27.1568 6.0056 107.75 121.57 49.82 dss pspc rass 705256 29968 0 SDSS J013341.22-0109 2026:234:23:07:47.717 19.5 ACIS-S NONE S2,S3 23.4218 -1.1588 103.79 127.52 9.07 dss pspc rass ---- 41212 CAL-ER (PER07) 2026:235:05:00:18.560 3.0 -- -- 336.7000 -12.6500 77.64 175.10 51.55 ---- 41211 CAL-ER (PER09) 2026:235:08:00:00.000 3.0 -- -- 331.8000 -14.2500 357.13 177.27 79.50 ---- 41210 CAL-ER (PER08) 2026:235:11:00:00.000 1.0 -- -- 100.5000 -84.8700 129.13 98.27 79.21 ---- 41209 CAL-ER (CAL01) 2026:235:12:10:00.000 3.0 -- -- 70.0000 5.0000 100.86 81.30 90.58 ---- 41208 CAL-ER (CAL01) 2026:235:15:00:00.000 3.0 -- -- 150.0000 -37.0000 177.10 48.46 95.55 705278 32502 0 NGC 7213 2026:235:17:17:41.335 16.9 ACIS-S HETG S2,S3 332.3175 -47.1667 359.97 144.20 95.80 dss pspc rass

AUG1026B

Seq # NB ObsID Constr. Target Start Time SI Grat Active Chips RA Dec Roll Pitch Slew Overlays ------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ ------------- ---- 41241 CAL-ER (PER03) 2026:222:04:00:00.000 3.0 -- -- 15.7620 26.6710 121.11 110.99 65.34 ---- 41240 CAL-ER (PER05) 2026:222:05:27:07.068 3.0 -- -- 87.9120 -44.8230 128.94 76.58 97.28 ---- 41239 CAL-ER (PER06) 2026:222:10:00:00.000 0.9 -- -- 325.8090 -19.3157 57.62 173.23 98.25 ---- 41238 CAL-ER (PER07) 2026:222:11:07:31.269 0.9 -- -- 316.5000 -14.5000 251.45 176.53 163.52 601692 32001 0 SDSS J125354.49+2624 2026:222:12:35:30.148 13.0 ACIS-S NONE I2,S2,S3 193.4771 26.4099 271.09 50.76 125.76 dss pspc rass 705389 31663 0 PSO J308.0416-21.233 2026:222:16:54:34.402 14.0 ACIS-S NONE S2,S3 308.0417 -21.2340 276.99 167.18 121.07 dss pspc rass 201924 CCT 32498 0 2RXS J161659.7-31363 2026:222:21:16:40.873 20.0 ACIS-S NONE S2,S3 244.2456 -31.6105 263.59 109.71 59.74 dss pspc rass 705224 29936 3 NGC 1358 2026:223:03:37:55.830 15.7 ACIS-S NONE I2,I3,S2,S3,S4 53.4153 -5.0895 103.00 88.58 145.87 dss pspc rass 705224 31992 3 NGC 1358 2026:223:08:07:27.430 15.0 ACIS-S NONE I2,I3,S2,S3,S4 53.4153 -5.0895 103.00 88.74 0.00 dss pspc rass 705463 31316 0 2MASX J22373491-1925 2026:223:12:49:15.223 11.7 ACIS-S NONE S2,S3 339.3955 -19.4262 81.00 161.86 73.33 dss pspc rass ---- 41237 CAL-ER (IAT02) 2026:223:16:28:05.523 0.0 -- -- 18.0138 12.2212 114.43 117.30 57.77 802197 30332 0 Perseus cluster N 2026:223:16:53:00.457 29.0 ACIS-I NONE I0,I1,I2,I3 49.9508 41.5897 93.99 80.79 40.78 dss pspc rass 705557 CCT 32488 0 SDSSJ220153.56-08344 2026:224:01:31:23.828 11.0 ACIS-S NONE S2,S3 330.4732 -8.5788 127.02 168.99 88.00 dss pspc rass 802197 32248 0 Perseus cluster N 2026:224:05:09:47.200 17.6 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.5897 93.99 81.24 88.00 dss pspc rass ---- 41236 CAL-ER (CAL01) 2026:224:10:23:38.296 0.0 -- -- 18.0138 12.2212 114.52 118.02 40.79 705463 32491 0 2MASX J22373491-1925 2026:224:10:52:07.191 12.8 ACIS-S NONE S2,S3 339.3955 -19.4262 83.00 162.60 56.84 dss pspc rass ---- 41235 CAL-ER (CAL01) 2026:224:15:03:59.854 7.0 -- -- 83.0000 2.8000 105.73 59.32 103.76 ---- 41234 CAL-ER (PER09) 2026:224:17:40:49.194 3.0 -- -- 332.0207 -16.6445 81.16 170.27 110.95 ---- 41233 CAL-ER (PER10) 2026:224:19:11:37.339 3.0 -- -- 321.4000 -11.5860 192.04 176.61 113.86 ---- 41232 CAL-ER (CAL01) 2026:224:22:24:00.000 3.0 -- -- 193.4300 46.5560 289.30 52.91 125.74 ---- 41231 CAL-ER (CAL01) 2026:225:02:42:00.000 0.9 -- -- 318.4140 -7.6500 208.47 171.85 119.40 ---- 41230 CAL-ER (PER11) 2026:225:03:25:35.938 0.0 -- -- 353.7372 39.1558 145.09 118.66 76.12 802199 29634 0 Perseus cluster S 2026:225:04:00:26.446 27.0 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.4236 93.99 82.13 44.06 dss pspc rass ---- 41229 CAL-ER (CAL01) 2026:225:11:50:29.377 0.0 -- -- 18.0138 12.2212 114.61 119.04 40.71 705463 32492 0 2MASX J22373491-1925 2026:225:12:19:11.850 11.8 ACIS-S NONE S2,S3 339.3955 -19.4262 81.00 163.41 57.86 dss pspc rass ---- 41228 CAL-ER (IAT03) 2026:225:16:06:24.976 0.0 -- -- 352.5050 38.7581 146.56 119.90 87.98 802199 32490 0 Perseus cluster S 2026:225:16:32:20.697 33.0 ACIS-I NONE I0,I1,I2,I3 49.9508 41.4236 93.99 82.59 45.24 dss pspc rass ---- 41227 CAL-ER (CAL01) 2026:226:02:03:26.647 0.0 -- -- 352.5050 38.7581 146.88 120.18 45.33 705463 32493 0 2MASX J22373491-1925 2026:226:02:38:53.739 14.0 ACIS-S NONE S2,S3 339.3955 -19.4262 81.00 163.85 88.21 dss pspc rass 705555 DDT 32486 1 TDE 2025aarm 2026:226:07:07:03.179 15.0 ACIS-S NONE S2,S3 68.0516 -5.3777 106.10 77.35 86.96 dss pspc rass 705556 CCT 32487 0 SDSSJ222203.73-09271 2026:226:11:53:24.797 10.5 ACIS-S NONE S2,S3 335.5156 -9.4533 113.97 167.44 93.87 dss pspc rass 802199 30354 0 Perseus cluster S 2026:226:15:22:48.536 31.5 ACIS-I NONE I0,I1,I2,I3 49.9508 41.4236 93.99 83.43 85.03 dss pspc rass ---- 41226 CAL-ER (IAT04) 2026:227:01:01:14.254 0.9 -- -- 233.5850 -32.4500 254.00 97.04 170.68 705389 32494 0 PSO J308.0416-21.233 2026:227:01:47:06.531 15.7 ACIS-S NONE I3,S2,S3,S4 308.0417 -21.2340 291.81 163.03 66.10 dss pspc rass ---- 41225 CAL-ER (PER12) 2026:227:06:47:11.107 8.0 -- -- 195.5857 -17.8431 240.98 59.70 103.19 ---- 41224 CAL-ER (PER14) 2026:227:09:41:15.535 3.0 -- -- 318.6182 -17.8812 302.57 173.14 113.58 ---- 41223 CAL-ER (PER13) 2026:227:12:00:00.000 3.0 -- -- 217.6500 -20.6440 250.54 79.63 93.80 ---- 41222 CAL-ER (CAL01) 2026:227:16:55:00.000 0.9 -- -- 318.6182 -17.8812 302.00 172.85 93.76 ---- 41221 CAL-ER (PER15) 2026:227:18:02:36.490 0.9 -- -- 328.2541 -10.0481 140.52 174.88 163.91 802199 30349 0 Perseus cluster S 2026:227:18:59:19.029 32.0 ACIS-I NONE I0,I1,I2,I3 49.9508 41.4236 93.99 84.46 91.82 dss pspc rass 705558 CCT 32489 0 Mrk915 2026:228:04:27:02.903 10.0 ACIS-S NONE S2,S3 339.1937 -12.5452 105.00 166.39 85.04 dss pspc rass 503711 DDT 32459 2 EP J223759.5+531421 2026:228:07:48:31.810 20.0 ACIS-S NONE S2,S3 339.4979 53.2392 165.20 111.89 86.92 dss pspc rass 802197 30331 0 Perseus cluster N 2026:228:13:49:08.810 12.0 ACIS-I NONE I0,I1,I2,I3,S2 49.9508 41.5897 103.99 85.11 47.39 dss pspc rass 705289 30227 0 NGC 424 2026:228:17:44:21.930 27.3 ACIS-S NONE S2,S3 17.8652 -38.0834 76.57 127.99 88.73 dss pspc rass

Last modified: 08/14/26

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 © 1998-2026. All rights reserved.