Chandra X-Ray Observatory
	(CXC)

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.

JUL2926A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
503537     29822    0            SNR G1.9+0.3 2026:211:06:07:37.477  11.5 ACIS-S NONE       I2,I3,S2,S3 267.1875 -27.1667 273.45 140.59 100.05 dss pspc rass
 ----      41291               CAL-ER (CAL01) 2026:211:09:57:12.563   0.9   --    --                    141.8000 -28.7000 195.86  48.76 103.62   
 ----      41290               CAL-ER (PER05) 2026:211:11:04:16.403   0.9   --    --                    138.2257  69.7608 349.21  51.52 161.46   
 ----      41289               CAL-ER (CAL01) 2026:211:11:50:13.692   3.0   --    --                    261.8000  36.5000 227.74 108.99  66.47   
 ----      41288               CAL-ER (CAL01) 2026:211:15:10:00.000   6.0   --    --                    307.4000 -15.4000 212.77 176.30  67.58   
 ----      41287               CAL-ER (CAL01) 2026:211:17:33:39.630   5.5   --    --                    138.2257  69.7608 349.54  51.56 126.72   
 ----      41286               CAL-ER (CAL01) 2026:211:19:49:03.594   3.0   --    --                    307.4000 -15.4000 215.46 176.26 127.05   
705456 TOO 32470    2            ZTF26aavrgaw 2026:211:22:03:18.737  24.0 ACIS-S NONE    I2,I3,S2,S3,S4 220.9047  58.8856 252.00  74.88 101.77 dss pspc rass
802273 CCT 32465    0        CIZAJ1955.8+0215 2026:212:05:17:03.054  10.0 ACIS-I NONE       I0,I1,I2,I3 298.9510   2.2558 207.54 156.69  82.07 dss pspc rass
402542     29760    0    1eRASS J120806.9+291 2026:212:08:44:15.075   1.9 ACIS-S NONE          S2,S3,S4 182.0290  29.2855 271.06  48.29 112.65 dss pspc rass
802230     31976    0       PSZ2G144.99-24.64 2026:212:09:59:48.016   9.6 ACIS-I NONE       I0,I1,I2,I3  37.1891  34.0270 110.99  82.32 127.72 dss pspc rass
201923 CCT 32466    0    Gaia DR2 68853429593 2026:212:13:15:19.210  10.2 ACIS-S NONE             S2,S3 316.7932 -13.9229 125.56 172.47  90.09 dss pspc rass
802199     30347    0       Perseus cluster S 2026:212:16:43:22.918  22.5 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.4236  90.99  71.12 101.53 dss pspc rass
 ----      41285               CAL-ER (CAL01) 2026:212:23:37:07.112   0.9   --    --                    314.2000 -15.3000 131.28 175.69 104.56   
705389     32473    0    PSO J308.0416-21.233 2026:213:00:46:09.150  10.0 ACIS-S NONE             S2,S3 308.0417 -21.2340 319.03 175.90 170.33 dss pspc rass
 ----      41284               CAL-ER (CAL01) 2026:213:04:12:21.244   0.9   --    --                    174.0000 -36.0000 224.52  67.67 108.16   
802199     30350    0       Perseus cluster S 2026:213:05:20:44.957  20.5 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.4236  91.99  71.58 167.45 dss pspc rass
 ----      41283               CAL-ER (IAT05) 2026:213:11:25:21.359   0.0   --    --                     16.5000  -2.7000 108.56 114.37  53.73   
705553 CCT 32463    0      SWIFT J2105.1-2106 2026:213:11:56:56.776  10.8 ACIS-I NONE       I0,I1,I2,I3 316.2645 -21.0650  57.45 174.39  70.83 dss pspc rass
 ----      41282               CAL-ER (CAL01) 2026:213:15:21:53.223   0.0   --    --                    322.3000 -11.6000 122.53 167.72  64.23   
802199     30351    0       Perseus cluster S 2026:213:15:59:03.277  18.9 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.4236  89.99  71.97  95.93 dss pspc rass
 ----      41281               CAL-ER (IAT07) 2026:213:21:47:06.331   0.9   --    --                    335.2959   5.9295 136.12 146.67  75.23   
503537     32468    0            SNR G1.9+0.3 2026:213:22:53:16.563  10.0 ACIS-S NONE       I2,I3,S2,S3 267.1875 -27.1667 273.06 138.02 157.44 dss pspc rass
 ----      41280               CAL-ER (CAL01) 2026:214:02:09:08.919   3.0   --    --                    307.4000 -15.4000 239.43 175.04  61.79   
 ----      41279               CAL-ER (PER06) 2026:214:03:30:58.072   3.0   --    --                    253.2041  35.5115 236.59 102.93  73.44   
 ----      41278               CAL-ER (CAL01) 2026:214:07:35:00.000   5.3   --    --                    206.2000 -26.0000 246.94  84.24  76.03   
 ----      41277               CAL-ER (CAL01) 2026:214:09:45:27.082   0.9   --    --                    138.2257  69.7608 352.72  52.09 119.78   
 ----      41276               CAL-ER (PER07) 2026:214:10:29:05.667   0.9   --    --                     82.4421  38.8499  78.52  47.90  56.07   
 ----      41275               CAL-ER (PER08) 2026:214:11:29:03.508   0.9   --    --                    314.2000 -15.3000 143.44 176.91 129.51   
802199     30352    0       Perseus cluster S 2026:214:14:08:32.820  23.7 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.4236  90.19  72.78 105.88 dss pspc rass
 ----      41274               CAL-ER (IAT06) 2026:214:21:22:43.667   0.9   --    --                    314.2000 -15.3000 147.80 177.22 106.56   
802199     32469    0       Perseus cluster S 2026:214:22:17:33.708  10.0 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.4236  90.99  73.08 106.43 dss pspc rass


JUL2726A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
802205     30414    0       MACS J0018.5+1626 2026:207:22:20:19.999  28.3 ACIS-I NONE       I0,I1,I2,I3   4.6388  16.4433 119.43 112.04  46.08 dss pspc rass
705227     30205    0                 NGC5728 2026:208:07:04:39.878  29.0 ACIS-S NONE             S2,S3 220.5995 -17.2531 252.69  99.58 167.24 dss pspc rass
 ----      41302               CAL-ER (IAT01) 2026:208:15:35:34.410   0.0   --    --                    293.9474 -39.9197 328.70 156.58  74.59   
705389     31661    0    PSO J308.0416-21.233 2026:208:16:04:57.684  10.0 ACIS-S NONE       I3,S2,S3,S4 308.0417 -21.2340  33.08 177.52  60.92 dss pspc rass
 ----      41301               CAL-ER (PER01) 2026:208:19:37:39.787   3.0   --    --                    307.4000 -15.4000 170.64 176.20 137.81   
 ----      41300               CAL-ER (PER02) 2026:208:21:00:49.604   3.0   --    --                    261.8000  36.5000 225.31 110.00  79.49   
 ----      41299               CAL-ER (CAL01) 2026:209:00:00:00.000   6.0   --    --                    307.4000 -15.4000 173.24 176.26  78.22   
 ----      41298               CAL-ER (PER03) 2026:209:02:23:49.267   3.0   --    --                    125.3000  68.0000   2.17  48.92 127.45   
 ----      41297               CAL-ER (PER04) 2026:209:03:41:30.555   5.3   --    --                    182.7829  39.7414 276.52  51.80  54.85   
 ----      41296               CAL-ER (CAL01) 2026:209:05:53:07.526   0.9   --    --                    304.1000 -17.4000 240.08 176.66 125.02   
890268     31407    3                   A1795 2026:209:07:16:10.171  15.0 ACIS-I NONE    I0,I1,I2,I3,S2 207.2196  26.5908 256.85  72.98 103.76 dss pspc rass
705554 CCT 32464    0             NGC_6814_s3 2026:209:12:02:27.826  10.0 ACIS-S NONE             S2,S3 295.7188 -10.2346 230.85 165.72  93.57 dss pspc rass
890268     32471    3                   A1795 2026:209:15:25:25.710  10.0 ACIS-I NONE    I0,I1,I2,I3,S2 207.2196  26.5908 257.06  72.74  93.59 dss pspc rass
705552 CCT 32462    0               LEDA90334 2026:209:18:47:48.288  10.0 ACIS-S NONE             S2,S3 294.3876  -6.2180 224.29 161.88  90.94 dss pspc rass
503710 DDT 32430    0              GRB251129A 2026:209:22:11:01.852  10.0 ACIS-S NONE       I3,S2,S3,S4 224.3286  79.2930 260.05  72.67  94.77 dss pspc rass
 ----      41295               CAL-ER (IAT02) 2026:210:01:47:26.774   0.9   --    --                    152.7493 -53.9955 204.16  75.87 154.12   
705389     31664    0    PSO J308.0416-21.233 2026:210:02:41:24.830  20.0 ACIS-S NONE       I3,S2,S3,S4 308.0417 -21.2340   0.51 177.57 102.53 dss pspc rass
 ----      41294               CAL-ER (IAT03) 2026:210:08:38:05.226   0.0   --    --                    293.9918 -27.5360 300.87 164.26  55.53   
601691     29881    0    SDSS J122558.56+0428 2026:210:09:18:15.359  23.0 ACIS-S NONE       I2,S1,S2,S3 186.4940   4.4740 245.00  58.52 109.44 dss pspc rass
 ----      41293               CAL-ER (CAL01) 2026:210:16:16:53.620   0.0   --    --                    293.9918 -27.5360 300.43 163.97 109.37   
705389     32472    0    PSO J308.0416-21.233 2026:210:16:42:37.434  16.0 ACIS-S NONE             S2,S3 308.0417 -21.2340 348.37 177.39  44.35 dss pspc rass
 ----      41292               CAL-ER (IAT04) 2026:210:21:39:44.292   0.9   --    --                    258.2744 -31.9602 273.75 132.89  67.26   
705456 TOO 31309    2            ZTF26aavrgaw 2026:210:22:33:13.468  25.0 ACIS-S NONE    I2,I3,S2,S3,S4 220.9047  58.8856 253.00  75.19 100.36 dss pspc rass
503537     29822    0            SNR G1.9+0.3 2026:211:06:07:37.477  11.5 ACIS-S NONE       I2,I3,S2,S3 267.1875 -27.1667 273.45 140.59 100.05 dss pspc rass
 ----      41291               CAL-ER (CAL01) 2026:211:09:57:12.563   0.9   --    --                    141.8000 -28.7000 195.86  48.76 103.62   
 ----      41290               CAL-ER (PER05) 2026:211:11:04:16.411   0.9   --    --                    138.2257  69.7608 349.21  51.52 161.46   
 ----      41289               CAL-ER (CAL01) 2026:211:11:50:13.701   3.0   --    --                    261.8000  36.5000 227.74 108.99  66.47   
 ----      41288               CAL-ER (CAL01) 2026:211:15:10:00.000   6.0   --    --                    307.4000 -15.4000 212.77 176.30  67.58   
 ----      41287               CAL-ER (CAL01) 2026:211:17:33:39.624   5.5   --    --                    138.2257  69.7608 349.54  51.56 126.72   
 ----      41286               CAL-ER (CAL01) 2026:211:19:49:03.582   3.0   --    --                    307.4000 -15.4000 215.46 176.26 127.05   
705456 TOO 32470    2            ZTF26aavrgaw 2026:211:22:03:18.737  24.0 ACIS-S NONE    I2,I3,S2,S3,S4 220.9047  58.8856 252.00  74.88 101.77 dss pspc rass
802273 CCT 32465    0        CIZAJ1955.8+0215 2026:212:05:17:03.053  10.0 ACIS-I NONE       I0,I1,I2,I3 298.9510   2.2558 207.54 156.69  82.07 dss pspc rass
402542     29760    0    1eRASS J120806.9+291 2026:212:08:44:15.075   1.9 ACIS-S NONE          S2,S3,S4 182.0290  29.2855 271.06  48.29 112.65 dss pspc rass
802230     31976    0       PSZ2G144.99-24.64 2026:212:09:59:48.015   9.6 ACIS-I NONE       I0,I1,I2,I3  37.1891  34.0270 110.99  82.32 127.72 dss pspc rass
201923 CCT 32466    0    Gaia DR2 68853429593 2026:212:13:15:19.209  10.2 ACIS-S NONE             S2,S3 316.7932 -13.9229 125.56 172.47  90.09 dss pspc rass
802199     30347    0       Perseus cluster S 2026:212:16:43:22.917  22.5 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.4236  90.99  71.12 101.53 dss pspc rass
 ----      41285               CAL-ER (CAL01) 2026:212:23:37:07.113   0.9   --    --                    314.2000 -15.3000 131.28 175.69 104.56   
705389     32473    0    PSO J308.0416-21.233 2026:213:00:46:09.222  10.0 ACIS-S NONE             S2,S3 308.0417 -21.2340 319.03 175.90 170.33 dss pspc rass
 ----      41284               CAL-ER (CAL01) 2026:213:04:12:21.316   0.9   --    --                    174.0000 -36.0000 224.52  67.67 108.16   
802199     30350    0       Perseus cluster S 2026:213:05:20:45.028  20.5 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.4236  91.99  71.58 167.45 dss pspc rass
 ----      41283               CAL-ER (IAT05) 2026:213:11:25:21.430   0.0   --    --                     16.5000  -2.7000 108.56 114.37  53.73   
705553 CCT 32463    0      SWIFT J2105.1-2106 2026:213:11:56:56.832  10.8 ACIS-I NONE       I0,I1,I2,I3 316.2645 -21.0650  57.46 174.39  70.83 dss pspc rass
 ----      41282               CAL-ER (CAL01) 2026:213:15:21:53.247   0.0   --    --                    322.3000 -11.6000 122.53 167.72  64.23   
802199     30351    0       Perseus cluster S 2026:213:15:59:03.300  18.9 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.4236  89.99  71.97  95.93 dss pspc rass
 ----      41281               CAL-ER (IAT07) 2026:213:21:47:06.354   0.9   --    --                    335.2959   5.9295 136.12 146.67  75.23   
503537     32468    0            SNR G1.9+0.3 2026:213:22:53:16.582  10.0 ACIS-S NONE       I2,I3,S2,S3 267.1875 -27.1667 273.06 138.02 157.44 dss pspc rass
 ----      41280               CAL-ER (CAL01) 2026:214:02:09:08.888   3.0   --    --                    307.4000 -15.4000 239.44 175.04  61.79   
 ----      41279               CAL-ER (PER06) 2026:214:03:30:58.048   3.0   --    --                    253.2041  35.5115 236.59 102.93  73.44   
 ----      41278               CAL-ER (CAL01) 2026:214:07:35:00.000   5.3   --    --                    206.2000 -26.0000 246.94  84.24  76.03   
 ----      41277               CAL-ER (CAL01) 2026:214:09:45:27.084   0.9   --    --                    138.2257  69.7608 352.72  52.09 119.78   
 ----      41276               CAL-ER (PER07) 2026:214:10:29:05.666   0.9   --    --                     82.4421  38.8499  78.52  47.90  56.07   
 ----      41275               CAL-ER (PER08) 2026:214:11:29:03.505   0.9   --    --                    314.2000 -15.3000 143.43 176.91 129.51   
802199     30352    0       Perseus cluster S 2026:214:14:08:32.820  23.7 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.4236  90.19  72.78 105.88 dss pspc rass
 ----      41274               CAL-ER (IAT06) 2026:214:21:22:43.658   0.9   --    --                    314.2000 -15.3000 147.79 177.22 106.56   
802199     32469    0       Perseus cluster S 2026:214:22:17:33.691  10.0 ACIS-I NONE    I0,I1,I2,I3,S2  49.9508  41.4236  90.99  73.08 106.43 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 07/28/26



Smithsonian Institute Smithsonian Institute

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.