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.

JUL2825A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
 ----      42246               CAL-ER (PER01) 2025:208:22:19:21.191   7.5   --    --                    314.6374 -25.2002  50.10 170.72 147.84   
 ----      42245               CAL-ER (PER02) 2025:209:01:06:34.092   3.0   --    --                    101.2039 -25.5483 147.88  51.27 120.22   
 ----      42244               CAL-ER (PER03) 2025:209:05:00:00.000   0.9   --    --                     75.8580  12.3250 104.57  49.89  59.77   
705024     28215    0    WISEA J210752.45-161 2025:209:08:19:26.600  20.0 ACIS-S NONE    I3,S1,S2,S3,S4 316.9686 -16.1921 108.28 170.56 121.11 dss pspc rass
201641     27981    1               HD 284653 2025:209:14:35:11.600  14.5  HRC-I NONE                    71.8591  23.0509  92.00  52.05 118.82 dss pspc rass
705266     29978    0            LEDA 1147287 2025:209:19:19:23.872  13.8 ACIS-S NONE             S2,S3 309.7416  -0.2808 162.00 161.36 121.67 dss pspc rass
 ----      42243               CAL-ER (IAT01) 2025:209:23:33:48.419   0.0   --    --                    279.3779  36.6865 211.11 118.25  59.89   
705071     28262    0    SDSS J130235.17+2726 2025:210:00:05:08.877   6.0 ACIS-S NONE       S1,S2,S3,S4 195.6466  27.4394 270.01  61.97  69.71 dss pspc rass
704981     28599    0               Abell 370 2025:210:02:35:52.642  67.7 ACIS-I NONE       I0,I1,I2,I3  39.9604  -1.5856 107.00  88.87 158.53 dss pspc rass
503511     28783    0               SNR 1987A 2025:210:22:06:37.642  12.5  HRC-I NONE                    83.8667 -69.2697 137.70  93.50  73.69 dss pspc rass
201687     28764    0                  R Cr A 2025:211:02:08:25.738  19.7 ACIS-I NONE       I0,I1,I2,I3 285.4608 -36.9583 305.02 152.18  80.86 dss pspc rass
705297     30009    0              GAMA718498 2025:211:08:15:15.601  14.8 ACIS-S NONE             S2,S3 180.5202   1.8357 248.04  52.69 103.49 dss pspc rass
 ----      42242               CAL-ER (PER04) 2025:211:13:04:23.701   0.9   --    --                    306.1556 -19.8030 291.70 176.41 124.18   
 ----      42241               CAL-ER (PER05) 2025:211:13:57:07.135   0.9   --    --                    314.2470 -25.5686  31.42 171.72  96.93   
 ----      42240               CAL-ER (PER06) 2025:211:14:48:51.251   3.0   --    --                     78.2580 -45.7850 130.94  79.32  92.48   
 ----      42239               CAL-ER (CAL01) 2025:211:16:58:00.000   0.9   --    --                    314.2470 -25.5686  30.61 171.76  92.51   
 ----      42238               CAL-ER (PER07) 2025:211:17:56:33.605   3.0   --    --                    104.5000 -23.4000 147.17  48.59 123.20   
 ----      42237               CAL-ER (PER08) 2025:211:20:30:00.000   0.9   --    --                    318.3675 -22.5670  63.44 171.08 124.42   
 ----      42236               CAL-ER (PER09) 2025:211:22:10:00.000   0.9   --    --                     46.0463 -18.5895 109.27  90.35  81.29   
704979     28586    0    WISE J025942.86-1635 2025:211:23:05:52.563  29.3 ACIS-S NONE             S2,S3  44.9287 -16.5953 114.01  90.72   5.54 dss pspc rass
503511     31018    0               SNR 1987A 2025:212:07:56:37.563  12.5  HRC-I NONE                    83.8667 -69.2697 136.36  93.50  58.40 dss pspc rass
201687     31016    0                  R Cr A 2025:212:11:58:46.555  15.3 ACIS-I NONE       I0,I1,I2,I3 285.4608 -36.9583 299.99 151.03  82.42 dss pspc rass
705064     28255    0    SDSS J125606.10+2740 2025:212:16:53:35.125   5.0 ACIS-S NONE       S1,S2,S3,S4 194.0254  27.6781 263.00  58.44 109.39 dss pspc rass
705025     28216    0    WISEA J201749.05+620 2025:212:18:49:03.989  20.0 ACIS-S NONE I2,I3,S1,S2,S3,S4 304.4544  62.0788 176.96  99.65  74.91 dss pspc rass
201687     31017    0                  R Cr A 2025:213:01:08:38.166  15.0 ACIS-I NONE       I0,I1,I2,I3 285.4608 -36.9583 295.99 150.57 138.31 dss pspc rass
705145     29106    0    2MASS J20401855+1059 2025:213:06:03:42.991   5.0 ACIS-S NONE             S2,S3 310.0774  10.9959 175.00 150.98 133.11 dss pspc rass
201639     30654    1               HD  29159 2025:213:08:09:27.991   6.0  HRC-I NONE                    69.0220  15.6840  95.00  59.46 117.80 dss pspc rass
704982     28647    0         SDSS J0100+2802 2025:213:10:16:20.983  24.0 ACIS-I NONE       I0,I1,I2,I3  15.0542  28.0405 118.92 103.22  51.22 dss pspc rass
705375 CCT 31013    0    SDSSJ212858.85-07001 2025:213:17:25:41.361  15.3 ACIS-S NONE             S2,S3 322.2452  -7.0055 137.70 165.08  62.28 dss pspc rass
704982     31015    0         SDSS J0100+2802 2025:213:22:09:21.457  20.0 ACIS-I NONE       I0,I1,I2,I3  15.0542  28.0405 119.11 103.66  62.26 dss pspc rass
 ----      42235               CAL-ER (PER10) 2025:214:04:14:34.160   1.0   --    --                    314.5440 -15.2930 138.62 176.66  73.63   
 ----      42234               CAL-ER (PER11) 2025:214:05:20:34.710   0.9   --    --                    306.1556 -19.8030 288.28 173.86 152.29   
 ----      42233               CAL-ER (PER12) 2025:214:06:09:40.366   6.9   --    --                    216.0000 -31.0000 251.57  93.87  80.60   
 ----      42232               CAL-ER (PER13) 2025:214:08:44:27.034   3.0   --    --                     95.8000 -19.7000 133.80  51.91 109.93   
 ----      42231               CAL-ER (PER14) 2025:214:11:00:30.000   5.0   --    --                    318.3675 -22.5670  49.70 172.66 120.73   
 ----      42230               CAL-ER (PER15) 2025:214:13:06:49.192   0.9   --    --                    104.5000 -23.4000 143.80  49.40 123.69   
 ----      42229               CAL-ER (PER16) 2025:214:14:16:46.592   0.9   --    --                    181.9730  48.9788 290.41  50.48 174.48   
402580     29798    2          MAXI J1820+070 2025:214:15:22:20.049  30.0 ACIS-S NONE    S0,S1,S2,S3,S4 275.0914   7.1854 235.74 135.34  86.61 dss pspc rass
 ----      42228               CAL-ER (IAT02) 2025:215:00:13:24.412   0.0   --    --                      5.2647  63.6406 131.06  89.37  90.33   
201640     30651    1               HD 284930 2025:215:00:53:10.412  11.0  HRC-I NONE                    73.0980  18.9969  93.00  56.64  64.50 dss pspc rass
201850 CCT 31014    0    2RXS J213450.7-20050 2025:215:04:37:28.002  10.0 ACIS-S NONE             S2,S3 323.7127 -20.0842  77.05 169.69 114.57 dss pspc rass
704981     28634    0               Abell 370 2025:215:07:56:51.697  30.0 ACIS-I NONE       I0,I1,I2,I3  39.9604  -1.5856 107.39  93.66  77.53 dss pspc rass
802144     28689    0               A85 North 2025:215:16:38:48.432  30.0 ACIS-I NONE       I0,I1,I2,I3  10.4449  -9.1132 104.85 124.29  30.31 dss pspc rass


JUL2125A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    Active Chips      RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- ----------------- -------- -------- ------ ------ ------ -------------
601648     29653    0                 NGC4207 2025:202:00:40:19.208  14.0 ACIS-S NONE       I3,S2,S3,S4 183.8770   9.5849 251.81  62.05  90.86 dss pspc rass
503555     29840    0          PSR J1826-1256 2025:202:05:10:14.283  30.0 ACIS-I NONE       I0,I1,I2,I3 276.5357 -12.9429 248.61 155.93  94.88 dss pspc rass
503579     30483    0               SN 2012au 2025:202:14:12:39.283  13.9  HRC-I NONE                   193.7174 -10.2473 246.40  77.91  82.43 dss pspc rass
503468     28512    0           SNR G15.9+0.2 2025:202:18:37:32.192  18.0 ACIS-S NONE             S2,S3 274.7258 -15.0319 254.18 154.43  79.72 dss pspc rass
601648     31007    0                 NGC4207 2025:203:00:13:46.655  12.0 ACIS-S NONE       I3,S2,S3,S4 183.8770   9.5849 252.03  61.12  93.33 dss pspc rass
503532     30124    0                   Snake 2025:203:04:08:54.724  12.1 ACIS-I NONE       I0,I1,I2,I3 266.0802 -29.7814 278.30 146.74  88.36 dss pspc rass
402603 DDT 31012    1              GRB250704B 2025:203:08:11:12.906  20.0 ACIS-S NONE       I2,I3,S2,S3 300.8721  12.0230 181.20 147.72 112.51 dss pspc rass
 ----      42258               CAL-ER (PER01) 2025:203:14:23:57.690   3.0   --    --                    174.6000  41.7000 279.12  49.17 107.57   
 ----      42257               CAL-ER (PER03) 2025:203:16:45:00.000   1.0   --    --                    298.0000 -21.0000 265.00 176.22 130.17   
 ----      42256               CAL-ER (PER09) 2025:203:18:05:00.000   1.0   --    --                    309.1000 -19.2000  99.58 173.25 169.30   
 ----      42255               CAL-ER (PER04) 2025:203:19:05:00.000   1.0   --    --                     55.0000   6.0000 109.43  66.41 107.16   
 ----      42254               CAL-ER (PER02) 2025:203:20:15:00.000   3.0   --    --                    177.0000  37.0000 273.68  50.33 150.63   
 ----      42253               CAL-ER (PER10) 2025:203:23:00:00.000   2.0   --    --                     96.8000  66.5000  32.15  49.17  71.21   
704981     28597    0               Abell 370 2025:204:00:39:35.187  46.0 ACIS-I NONE       I0,I1,I2,I3  39.9604  -1.5856 107.00  83.31  85.57 dss pspc rass
100236     29678    2                 WASP-69 2025:204:14:08:40.187  10.0  HRC-I NONE                   315.0258  -5.0944 142.37 160.94  92.66 dss pspc rass
402569     30104    1           XTE J1855-026 2025:204:17:30:47.909  13.0 ACIS-S HETG       S1,S2,S3,S4 283.8767  -2.6046 225.58 154.55  89.83 dss pspc rass
601700 P1  29890    0    NGVS J124251.12+1137 2025:204:21:44:04.007  20.0 ACIS-S NONE             S2,S3 190.7130  11.6211 253.28  65.18  94.96 dss pspc rass
402569     31010    1           XTE J1855-026 2025:205:03:53:58.638  17.0 ACIS-S HETG       S1,S2,S3,S4 283.8767  -2.6046 226.35 154.30  94.85 dss pspc rass
704982     28651    0         SDSS J0100+2802 2025:205:09:20:48.327  28.0 ACIS-I NONE    I0,I1,I2,I3,S3  15.0542  28.0405 101.99  96.01 125.98 dss pspc rass
100236     31009    2                 WASP-69 2025:205:17:49:53.327  10.0  HRC-I NONE                   315.0258  -5.0944 144.54 161.81  71.91 dss pspc rass
802143     28683    0              Abell 3017 2025:205:21:17:07.482  28.4 ACIS-S NONE    I2,I3,S1,S2,S3  36.4679 -41.9182  97.01 101.32 112.81 dss pspc rass
 ----      42252               CAL-ER (PER05) 2025:206:05:42:37.257   3.0   --    --                    308.0000 -23.0000  45.25 175.30  73.88   
 ----      42251               CAL-ER (PER11) 2025:206:08:30:00.000   3.0   --    --                    303.0000 -22.0000 327.69 177.22  75.77   
 ----      42250               CAL-ER (PER06) 2025:206:11:00:00.000   3.0   --    --                    136.0000 -27.0000 194.43  47.90 129.94   
 ----      42249               CAL-ER (CAL01) 2025:206:14:20:00.000   1.0   --    --                    305.0000 -22.0000   4.32 177.57 130.38   
 ----      42248               CAL-ER (PER12) 2025:206:15:30:00.000   1.0   --    --                    307.9000 -19.7000 100.00 177.13  94.70   
802141     28326    0       PSZ2G358.21-87.49 2025:206:16:51:43.957   5.0 ACIS-I NONE    I0,I1,I2,I3,S2  10.5193 -28.5334  97.18 120.10  64.39 dss pspc rass
704981     28606    0               Abell 370 2025:206:18:40:20.957  60.0 ACIS-I NONE       I0,I1,I2,I3  39.9604  -1.5856 107.00  85.82  38.96 dss pspc rass
201666     28747    1                  G29-38 2025:207:12:02:45.957  14.0  HRC-I NONE                   352.1985   5.2484 119.61 128.03  49.36 dss pspc rass
503468     31005    0           SNR G15.9+0.2 2025:207:16:45:46.036  12.0 ACIS-S NONE             S2,S3 274.7258 -15.0319 257.33 149.97 153.76 dss pspc rass
705374 CCT 31004    0    SDSSJ115640.43+15204 2025:207:20:43:17.892  10.0 ACIS-S NONE             S2,S3 179.1685  15.3445 257.45  50.68  99.14 dss pspc rass
503468     28514    0           SNR G15.9+0.2 2025:208:00:07:29.751  16.0 ACIS-S NONE       I2,I3,S2,S3 274.7258 -15.0319 257.49 149.68  99.14 dss pspc rass
705219 P1  29931    0    SDSS J152043.83+1918 2025:208:05:01:34.626  15.0 ACIS-S NONE             S2,S3 230.1827  19.3143 249.60  95.95  56.47 dss pspc rass
503468     31006    0           SNR G15.9+0.2 2025:208:09:39:37.915  10.0 ACIS-S NONE       I2,I3,S2,S3 274.7258 -15.0319 257.69 149.31  56.50 dss pspc rass
201663     28741    0                 LHS 475 2025:208:13:08:42.915  13.9  HRC-I NONE                   290.2334 -82.5577 342.46 116.24  94.88 dss pspc rass
705042     28233    0    SDSS J162753.48+4825 2025:208:17:47:42.998   3.0 ACIS-S NONE       S1,S2,S3,S4 246.9728  48.4248 235.07  93.97 143.26 dss pspc rass
402549 P1  29767    0    1eRASS J140339.9+093 2025:208:19:04:08.727   5.7 ACIS-S NONE          S2,S3,S4 210.9163   9.6645 251.99  81.18  49.16 dss pspc rass
 ----      42247               CAL-ER (PER08) 2025:208:21:14:28.096   0.9   --    --                    297.0000 -17.0000 256.28 170.21  89.16   


Previous weeks' short-term schedules.

Last modified: 07/25/25



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