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.

OCT2725A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
 ----      42007               CAL-ER (IAT01) 2025:299:23:44:33.096   0.9   --    --                     32.6800  15.6150 163.00 176.75 166.11   
705264     29976    0    SDSS J130557.09+3250 2025:300:00:44:26.101  20.9 ACIS-S NONE             S2,S3 196.4890  32.8372  19.66  47.67 129.15 dss pspc rass
802200     30370    0       Perseus cluster E 2025:300:07:10:18.709  15.4 ACIS-I NONE    I0,I1,I2,I3,S2  50.0600  41.5093 145.12 147.03  99.50 dss pspc rass
705250 P1  29962    0    AKARI-IRC-V1 J175700 2025:300:11:58:55.711  30.6 ACIS-S NONE             S2,S3 269.2510  59.1334 301.04  85.58  77.78 dss pspc rass
802200     31964    0       Perseus cluster E 2025:300:21:01:39.968  17.4 ACIS-I NONE    I0,I1,I2,I3,S2  50.0600  41.5093 145.88 147.43  77.57 dss pspc rass
802201     30378    0               Abell 795 2025:301:02:25:59.145  17.6 ACIS-S NONE       I3,S1,S2,S3 141.0221  14.1726  61.50  75.60  86.49 dss pspc rass
 ----      42006               CAL-ER (PER01) 2025:301:07:55:30.074   3.0   --    --                     40.5300  15.1600 103.61 171.94  96.38   
 ----      42005               CAL-ER (PER02) 2025:301:09:25:18.309   3.0   --    --                    167.0000  39.0000  48.93  67.24 109.37   
 ----      42004               CAL-ER (CAL01) 2025:301:10:55:06.554   3.0   --    --                     40.5300  15.1600 103.61 172.07 109.37   
 ----      42003               CAL-ER (PER03) 2025:301:14:59:00.000   1.1   --    --                    162.0000  41.0000  52.63  71.67 105.28   
 ----      42002               CAL-ER (PER04) 2025:301:15:25:30.000   3.0   --    --                    162.0000  41.0000  52.64  71.69   0.01   
 ----      42001               CAL-ER (PER05) 2025:301:17:05:00.000   0.9   --    --                     40.6100  15.4300 105.28 172.21 104.73   
 ----      42000               CAL-ER (PER06) 2025:301:18:01:42.030   3.0   --    --                     29.3000  17.1000 222.95 174.81 114.83   
300576 DDT 31922    1          CHIME J1634+44 2025:301:20:39:43.071  10.0 ACIS-S NONE             S2,S3 248.6248  44.8371 321.90  66.49 109.03 dss pspc rass
802201     31965    0               Abell 795 2025:302:00:04:09.806  10.0 ACIS-S NONE             S2,S3 141.0221  14.1726  77.00  76.54 100.26 dss pspc rass
 ----      41999               CAL-ER (IAT04) 2025:302:03:09:54.216   0.0   --    --                    108.9364  -3.3755  75.38 103.12  36.64   
705305     30229    0               [vD2023]1 2025:302:03:44:04.477  22.3 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506  18.04 157.09  82.44 dss pspc rass
 ----      41998               CAL-ER (IAT02) 2025:302:10:23:28.951   0.0   --    --                    356.2254 -17.3127 307.55 131.94  73.24   
503560     29845    0          PSR J2055+2539 2025:302:10:54:17.124  28.0 ACIS-I NONE       I0,I1,I2,I3 313.9540  25.6664 278.04 105.00  67.29 dss pspc rass
402575     29793    1               IC 10 X-1 2025:302:19:08:22.126  28.5 ACIS-S NONE    I2,I3,S2,S3,S4   5.1212  59.2811 217.37 129.63  53.63 dss pspc rass
201898 CCT 31961    0    2RXS J203732.9+14353 2025:303:03:45:47.126  14.5  HRC-S LETG                   309.3872  14.5951 282.14  98.28  65.52 dss pspc rass
601634     30146    0                  IC1954 2025:303:08:28:42.642  28.0 ACIS-S NONE       I3,S2,S3,S4  52.8808 -51.9049  19.41 112.35 115.91 dss pspc rass
601683     29873    0    SDSS J023749.52-0925 2025:303:16:40:39.013  22.4 ACIS-S NONE             S2,S3  39.4563  -9.4322  11.34 156.18  43.87 dss pspc rass
 ----      41997               CAL-ER (PER07) 2025:303:23:14:37.502   3.0   --    --                     36.3800  11.2400  25.15 176.95  24.99   
 ----      41996               CAL-ER (CAL01) 2025:304:00:35:28.876   3.0   --    --                     39.5100  14.3100  93.44 175.72  69.10   
 ----      41995               CAL-ER (CAL01) 2025:304:02:05:07.125   3.0   --    --                    154.6990  21.9200  64.46  69.32 108.62   
 ----      41994               CAL-ER (CAL01) 2025:304:03:34:44.368   3.0   --    --                     39.5200  14.3600  93.79 175.83 108.54   
 ----      41993               CAL-ER (CAL01) 2025:304:06:18:00.000   1.1   --    --                    149.0000  28.0000  65.91  76.75 102.28   
 ----      41992               CAL-ER (CAL01) 2025:304:06:44:30.000   3.0   --    --                    149.0000  28.0000  65.91  76.77   0.01   
 ----      41991               CAL-ER (CAL01) 2025:304:10:25:00.000   0.9   --    --                     39.5200  14.3600  92.56 176.13 102.52   
601646     29651    0                 NGC3596 2025:304:12:49:25.672  17.0 ACIS-S NONE       I3,S2,S3,S4 168.7759  14.7871  59.00  54.65 123.18 dss pspc rass
601639     29644    0                 NGC2283 2025:304:18:04:52.859  26.0 ACIS-S NONE       I3,S2,S3,S4 101.4706 -18.2118  67.86 107.61  74.79 dss pspc rass
705305     31963    0               [vD2023]1 2025:305:01:50:54.617  20.0 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506   1.00 156.86  77.38 dss pspc rass
201898 CCT 31966    0    2RXS J203732.9+14353 2025:305:08:07:14.847  14.5  HRC-S LETG                   309.3872  14.5951 274.00  96.43 123.77 dss pspc rass
705305     30230    0               [vD2023]1 2025:305:12:52:02.672  14.5 ACIS-I NONE       I0,I1,I2,I3  40.4405  -8.3506   2.00 156.79 124.34 dss pspc rass
 ----      41990               CAL-ER (IAT03) 2025:305:17:24:40.742   0.0   --    --                    119.0000 -21.0000  77.00  91.81  89.86   
705247 P1  29959    0    2MASS J09270013+1900 2025:305:17:50:48.840  17.3 ACIS-S NONE          S2,S3,S4 141.7502  19.0077  71.12  81.11  46.18 dss pspc rass
601734 CCT 31960    0               UGC 02168 2025:305:23:16:21.475   9.9 ACIS-I NONE       I0,I1,I2,I3  40.2542  17.4311 130.75 175.81  95.97 dss pspc rass
601646     31962    0                 NGC3596 2025:306:02:42:53.388  17.0 ACIS-S NONE       I3,S2,S3,S4 168.7759  14.7871  60.46  56.17 120.14 dss pspc rass
503531     30122    0            Cassiopeia A 2025:306:08:05:22.094  21.7 ACIS-S NONE             S2,S3 350.8710  58.8200 235.03 124.24 106.40 dss pspc rass
 ----      41989               CAL-ER (PER08) 2025:306:14:37:14.029   3.0   --    --                     33.5586  16.9761 241.98 175.54  62.53   


OCT2225A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
 ----      42017               CAL-ER (PER05) 2025:296:00:59:31.652   3.0   --    --                     30.4489   8.4611  46.07 175.88  73.84   
 ----      42016               CAL-ER (PER06) 2025:296:07:00:00.000   3.0   --    --                     85.6457 -59.5880  56.58  95.34  82.87   
 ----      42015               CAL-ER (PER07) 2025:296:08:12:49.320   3.0   --    --                     77.9432 -27.1745  58.45 117.90  33.64   
 ----      42014               CAL-ER (PER08) 2025:296:11:00:00.000   3.0   --    --                    150.5000  -5.3000  79.77  56.99  72.11   
 ----      42013               CAL-ER (PER09) 2025:296:12:32:09.276   3.0   --    --                     32.6476   8.8853  60.42 174.66 119.95   
201818     30519    4                   WR 11 2025:296:14:21:34.515  20.0 ACIS-S HETG S0,S1,S2,S3,S4,S5 122.3831 -47.3366  85.33  78.58  97.34 dss pspc rass
705402     31937    0    SDSS J014837.63+0600 2025:296:20:33:23.389  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056   0.00 174.27 103.42 dss pspc rass
300577 DDT 31954    2               V1935 Cen 2025:297:00:03:40.468  14.5  HRC-S LETG                   219.3407 -58.7944 194.64  47.83 126.53 dss pspc rass
705402     31946    0    SDSS J014837.63+0600 2025:297:04:48:56.260  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 346.63 174.09 126.43 dss pspc rass
503552 P1  29837    0          PSR J1459-6053 2025:297:08:18:33.468  10.0 ACIS-I NONE       I0,I1,I2,I3 224.8759 -60.8888 200.77  50.50 123.54 dss pspc rass
705402     31947    0    SDSS J014837.63+0600 2025:297:11:48:11.182  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 344.42 173.92 123.58 dss pspc rass
300577 DDT 31958    2               V1935 Cen 2025:297:15:18:27.488  14.5  HRC-S LETG                   219.3407 -58.7944 193.92  47.54 126.47 dss pspc rass
705402     31948    0    SDSS J014837.63+0600 2025:297:20:03:44.936  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 341.91 173.72 126.56 dss pspc rass
503552     31956    0          PSR J1459-6053 2025:297:23:33:23.307  10.0 ACIS-I NONE       I0,I1,I2,I3 224.8759 -60.8888 200.08  50.19 123.63 dss pspc rass
705402     31949    0    SDSS J014837.63+0600 2025:298:03:03:02.644  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 339.88 173.54 123.70 dss pspc rass
300577 DDT 31959    2               V1935 Cen 2025:298:06:33:20.819  14.5  HRC-S LETG                   219.3407 -58.7944 193.16  47.26 126.61 dss pspc rass
601672     29862    0              AM0126-525 2025:298:11:05:33.947  17.1 ACIS-S NONE       I3,S2,S3,S4  22.1054 -52.6358 349.96 114.86  67.73 dss pspc rass
 ----      42012               CAL-ER (PER10) 2025:298:16:20:36.571   3.0   --    --                     30.9395   8.2226  13.73 175.88  64.18   
 ----      42011               CAL-ER (PER11) 2025:298:23:00:00.000   3.0   --    --                    343.2184 -44.6733 310.94 108.90  80.21   
 ----      42010               CAL-ER (PER12) 2025:299:01:55:00.000   0.9   --    --                     30.9395   8.2226   7.78 175.82  77.42   
 ----      42009               CAL-ER (PER13) 2025:299:02:54:27.240   3.0   --    --                    166.2000 -47.0000 118.25  50.63 127.22   
 ----      42008               CAL-ER (PER14) 2025:299:04:32:05.061   0.9   --    --                    256.3285   3.7973 290.31  48.37 144.59   
802205     31935    0       MACS J0018.5+1626 2025:299:06:22:05.286  10.0 ACIS-I NONE       I0,I1,I2,I3   4.6388  16.4433 264.34 154.61 106.37 dss pspc rass
705501 CCT 31923    0    2MASXiJ1802473-14545 2025:299:09:46:04.565  10.0 ACIS-S NONE          S2,S3,S4 270.6974 -14.9152 275.66  58.19  98.20 dss pspc rass
802205     31936    0       MACS J0018.5+1626 2025:299:13:10:03.493  10.0 ACIS-I NONE       I0,I1,I2,I3   4.6388  16.4433 264.71 154.39  98.17 dss pspc rass
201897 CCT 31927    0     HEP G355.212-00.921 2025:299:16:36:18.287  10.0 ACIS-I NONE       I0,I1,I2,I3 264.3604 -33.4878 259.97  52.74 108.36 dss pspc rass
705402     31938    0    SDSS J014837.63+0600 2025:299:20:05:28.292  10.0 ACIS-I NONE       I0,I1,I2,I3  27.1568   6.0056 330.09 172.31 121.50 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 10/24/25



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