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.

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


Previous weeks' short-term schedules.

Last modified: 06/02/25



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