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.

OCT0223A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ -------------
801947     25471    0      PSZ2 G075.85+15.53 2023:274:16:31:41.098  24.5 ACIS-S NONE 287.7473  44.9487 262.01  99.68  93.16 dss pspc rass
704323     27739    0              Abell 2744 2023:275:00:03:54.341  21.5 ACIS-I NONE   3.5630 -30.4040 338.99 146.09 127.74 dss pspc rass
291658     25570    2                    Vega 2023:275:06:45:02.897   1.0  HRC-S NONE 279.2064  39.2216 271.72  93.27 122.89 dss pspc rass
291654     25566    2                    Vega 2023:275:07:11:38.097   2.0  HRC-I NONE 279.2226  38.8048 271.75  93.26   0.42 dss pspc rass
291655     25567    2                    Vega 2023:275:07:53:34.897   2.0  HRC-S NONE 279.2225  38.8050 271.78  93.25   0.03 dss pspc rass
291656     25568    2                    Vega 2023:275:08:36:59.231   1.0  HRC-S NONE 279.2366  38.6382 274.00  93.24   2.24 dss pspc rass
291657     25569    2                    Vega 2023:275:09:03:40.185   1.0  HRC-S NONE 279.2397  38.3883 271.83  93.23   2.18 dss pspc rass
402312     25143    0               SS 433 w2 2023:275:09:45:35.185  21.5 ACIS-I NONE 287.4284   5.0900 272.00  99.81  34.28 dss pspc rass
704323     25277    0              Abell 2744 2023:275:16:19:19.063  18.8 ACIS-I NONE   3.5664 -30.4024 334.99 145.77  89.54 dss pspc rass
601541     27694    1                     m31 2023:275:22:23:34.168  10.0  HRC-I NONE  10.7068  41.2786 182.99 142.30 156.76 dss pspc rass
704720 P1  26799    0    SDSS J072517.52+4345 2023:276:01:42:02.563   3.5 ACIS-S NONE 111.3288  43.7409  78.40  83.36  73.38 dss pspc rass
 ----      44126               CAL-ER (PER01) 2023:276:03:17:08.488   2.0   --    --   92.0000 -53.0000  82.53  90.97  98.32   
 ----      44125               CAL-ER (PER02) 2023:276:04:24:12.524   1.0   --    --   20.5905  -0.7500  69.43 167.21  82.05   
 ----      44124               CAL-ER (PER03) 2023:276:05:05:15.941   1.0   --    --   18.0000   7.0000 108.80 170.12  40.03   
 ----      44123               CAL-ER (PER04) 2023:276:05:55:12.038   3.0   --    --   95.0000  50.0000  90.39  95.22  79.96   
 ----      44122               CAL-ER (PER05) 2023:276:08:22:00.000   2.7   --    --   95.0000  50.0000  90.45  95.32   0.06   
 ----      44121               CAL-ER (PER06) 2023:276:09:14:40.000   1.0   --    --   95.0000  50.0000  90.47  95.35   0.02   
 ----      44120               CAL-ER (PER07) 2023:276:09:50:34.263   1.0   --    --   94.0000  29.0000  89.00  96.06  21.12   
704651     27132    0             Slug nebula 2023:276:15:45:44.996  15.2 ACIS-I NONE  13.0173   1.0061  68.00 175.06  91.96 dss pspc rass
802006     26074    0       PSZ2G225.48+29.41 2023:276:20:41:45.511  15.5 ACIS-I NONE 134.5063   3.1882  80.00  55.13 122.29 dss pspc rass
704651     28949    0             Slug nebula 2023:277:01:42:51.586  12.2 ACIS-I NONE  13.0160   1.0031  64.00 175.24 122.71 dss pspc rass
802006     28945    0       PSZ2G225.48+29.41 2023:277:05:49:00.816  14.2 ACIS-I NONE 134.5068   3.1871  82.00  55.48 122.94 dss pspc rass
704651     28950    0             Slug nebula 2023:277:10:28:35.249  13.0 ACIS-I NONE  13.0148   1.0003  61.00 175.38 123.33 dss pspc rass
802006     28946    0       PSZ2G225.48+29.41 2023:277:14:48:08.424  14.5 ACIS-I NONE 134.5075   3.1842  81.30  55.83 123.24 dss pspc rass
402497 P1  28043    0    1eRASS J044957.0-315 2023:277:19:20:35.128  21.0 ACIS-S NONE  72.4894 -31.9949  70.73 110.53  68.75 dss pspc rass
704423     25379    0              AM2031-440 2023:278:01:47:14.261  26.0 ACIS-S NONE 308.6344 -43.8221 292.98 106.70  95.19 dss pspc rass
100219     26212    0                 HD15337 2023:278:09:42:59.261  14.6  HRC-I NONE  36.8633 -27.6576  52.00 138.98  89.36 dss pspc rass
704323     28951    0              Abell 2744 2023:278:14:15:00.185  13.0 ACIS-I NONE   3.5661 -30.4068 347.64 144.25  55.57 dss pspc rass
 ----      44119               CAL-ER (PER08) 2023:278:18:25:56.524   1.0   --    --  207.8749 -61.5498 199.96  58.22  85.95   
 ----      44118               CAL-ER (PER09) 2023:278:19:33:44.301   1.0   --    --  211.0000  61.0000 338.35  67.56 160.33   
 ----      44117               CAL-ER (PER10) 2023:278:20:17:04.054   1.0   --    --   12.0322  68.0401 178.87 116.71  50.23   
 ----      44116               CAL-ER (PER11) 2023:278:20:58:33.394   3.0   --    --   94.0000  52.0000  92.62  98.09  41.89   
 ----      44115               CAL-ER (PER12) 2023:278:23:52:00.000   2.6   --    --   94.0000  52.0000  92.69  98.19   0.07   
 ----      44114               CAL-ER (PER13) 2023:279:00:43:50.000   0.9   --    --   94.0000  52.0000  92.71  98.23   0.02   
802186 CCT 28942    0      CLJ010032.8+044900 2023:279:07:14:57.880  15.0 ACIS-I NONE  15.1478   4.8192  88.02 176.29  91.96 dss pspc rass
802006     28947    0       PSZ2G225.48+29.41 2023:279:12:06:53.087  13.5 ACIS-I NONE 134.5067   3.1845  75.00  57.63 118.89 dss pspc rass
601610 P1  28116    0             ESO486-G021 2023:279:16:21:42.409   7.6 ACIS-I NONE  75.8393 -25.4414  73.39 110.80  64.45 dss pspc rass
100219     28948    0                 HD15337 2023:279:19:11:27.409  11.0  HRC-I NONE  36.8638 -27.6571  53.00 139.28  34.87 dss pspc rass
601603 P1  28109    0                 UGC1249 2023:279:22:53:54.560  10.0 ACIS-I NONE  26.8968  27.3340 144.69 153.72 104.04 dss pspc rass
802004     26072    0      PSZ2 G075.85+15.53 2023:280:02:17:02.066  28.0 ACIS-S NONE 287.7422  44.9435 274.01  97.68  94.31 dss pspc rass
601541     27491    1                     m31 2023:280:10:46:07.066  10.0  HRC-I NONE  10.7091  41.2760 173.98 144.08  68.21 dss pspc rass
802004     28944    0      PSZ2 G075.85+15.53 2023:280:14:02:54.568  21.0 ACIS-S NONE 287.7458  44.9429 269.01  97.50  65.81 dss pspc rass
802181 P1  28824    0       PSZ2G099.57-58.64 2023:280:20:28:35.695   7.8 ACIS-I NONE   0.9308   2.0634 286.68 167.63  90.83 dss pspc rass
402312     28943    0               SS 433 w2 2023:280:23:11:01.328  18.0 ACIS-I NONE 287.4301   5.0881 270.00  94.96  76.17 dss pspc rass
704323     28952    0              Abell 2744 2023:281:04:46:58.336  14.2 ACIS-I NONE   3.5682 -30.4036 338.99 142.78  92.03 dss pspc rass
 ----      44113               CAL-ER (PER14) 2023:281:09:11:24.711   3.0   --    --    4.5142   2.1389 292.48 170.50  56.44   


SEP2523A


Seq #  NB  ObsID Constr.          Target                Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew   Overlays
------ --- ----- ------- -------------------- --------------------- ----- ------ ---- -------- -------- ------ ------ ------ -------------
 ----      44145               CAL-ER (PER02) 2023:268:07:58:46.946   0.9   --    --   16.1295  11.8925 126.70 161.67 176.77   
 ----      44144               CAL-ER (PER01) 2023:268:08:45:58.474   3.0   --    --   92.5000  42.4000  88.86  89.77  72.04   
 ----      44143               CAL-ER (CAL01) 2023:268:10:02:15.000   2.6   --    --   92.5000  42.4000  88.89  89.82   0.02   
 ----      44142               CAL-ER (CAL01) 2023:268:10:54:45.000   0.9   --    --   92.5000  42.4000  88.90  89.85   0.01   
802003     26096    0      PSZ2 G075.85+15.53 2023:268:17:15:07.717  25.0 ACIS-S NONE 287.7508  44.9441 259.22 101.77  92.24 dss pspc rass
704090     24463    0             MR 2251-178 2023:269:00:55:48.717  14.5  HRC-S LETG 343.5075 -17.5736 304.99 153.92  98.45 dss pspc rass
704773     27173    0                   J0038 2023:269:05:34:03.651  12.0 ACIS-S NONE   9.5053  -6.9107  42.35 169.28  94.87 dss pspc rass
503347     25515    2               SNR 1987A 2023:269:09:27:26.049  36.5 ACIS-S HETG  83.8671 -69.2935  78.50  91.98  80.43 dss pspc rass
704090     28930    0             MR 2251-178 2023:269:20:18:11.049  14.5  HRC-S LETG 343.5050 -17.5765 315.99 153.18  84.51 dss pspc rass
704773     28937    0                   J0038 2023:270:00:53:16.828  10.0 ACIS-S NONE   9.5033  -6.9108  38.24 169.50  80.68 dss pspc rass
503347     28932    2               SNR 1987A 2023:270:04:13:17.453  22.0 ACIS-S HETG  83.8634 -69.2942  75.00  91.94  80.30 dss pspc rass
704773     28938    0                   J0038 2023:270:10:53:12.046  10.0 ACIS-S NONE   9.5021  -6.9112  36.03 169.61  79.84 dss pspc rass
503344     27487    1               SNR 1987A 2023:270:14:22:17.046  14.5  HRC-S LETG  83.8848 -69.2899  80.41  91.93  78.95 dss pspc rass
704323     25952    0              Abell 2744 2023:270:18:52:39.761  10.9 ACIS-I NONE   3.5678 -30.4108 359.71 147.95  59.45 dss pspc rass
 ----      44141               CAL-ER (PER03) 2023:270:22:15:55.178   0.9   --    --    4.2292  -1.5504   6.54 176.74  29.61   
 ----      44140               CAL-ER (PER04) 2023:270:23:14:40.643   0.9   --    --    6.6164   4.0229 130.49 176.43 124.09   
 ----      44139               CAL-ER (PER05) 2023:271:00:05:16.483   0.9   --    --   96.3744  54.3231  87.02  89.97  87.36   
 ----      44138               CAL-ER (CAL01) 2023:271:01:28:00.000   2.7   --    --   96.3744  54.3231  87.06  90.01   0.04   
 ----      44137               CAL-ER (CAL01) 2023:271:02:20:40.000   0.9   --    --   96.3744  54.3231  87.08  90.05   0.02   
 ----      44136               CAL-ER (CAL01) 2023:271:03:11:14.509   0.9   --    --    6.6164   4.0229 131.42 176.58  87.26   
 ----      44135               CAL-ER (PER06) 2023:271:06:30:00.000   0.9   --    --   70.2588  72.4824 112.40  98.76  83.37   
 ----      44134               CAL-ER (PER07) 2023:271:07:22:43.673   0.9   --    --   81.9385 -22.3091  83.56 100.61  96.95   
704419     25717    0          QSO J0041-4936 2023:271:09:02:04.678  23.0 ACIS-I NONE  10.4066 -49.6461   4.04 128.21  68.68 dss pspc rass
601561     25776    0               ESO 338-4 2023:271:15:53:26.386  30.0 ACIS-I NONE 291.9744 -41.5595 283.29 101.63  56.38 dss pspc rass
704090     28931    0             MR 2251-178 2023:272:00:55:51.386  14.5  HRC-S LETG 343.5049 -17.5747 311.08 151.18  49.90 dss pspc rass
704651     27133    0             Slug nebula 2023:272:05:39:49.560  10.3 ACIS-I NONE  13.0189   1.0057  73.00 171.90 120.61 dss pspc rass
705127 CCT 28929    0               Ark120_s3 2023:272:09:02:01.091  10.0 ACIS-S NONE  79.1191  -0.2289  87.57 105.99  67.61 dss pspc rass
801947     25702    0      PSZ2 G075.85+15.53 2023:272:12:34:07.919  30.0 ACIS-S NONE 287.7505  44.9454 259.01 100.47 134.76 dss pspc rass
704323     28934    0              Abell 2744 2023:272:21:39:02.900  20.0 ACIS-I NONE   3.5675 -30.4056 344.99 147.06 132.37 dss pspc rass
503344     28939    1               SNR 1987A 2023:273:03:54:47.900  14.5  HRC-S LETG  83.8811 -69.2883  77.90  91.80  62.75 dss pspc rass
704718 P1  26797    0    SDSS J014128.26+0706 2023:273:08:33:45.963   6.3 ACIS-S NONE  25.3765   7.0797  90.00 160.23  98.10 dss pspc rass
 ----      44133               CAL-ER (PER08) 2023:273:10:36:22.032   3.0   --    --   11.9288   3.3475  96.50 174.16  14.86   
 ----      44132               CAL-ER (PER10) 2023:273:12:14:31.189   3.0   --    --    0.0204   5.6975 244.19 173.16 146.94   
 ----      44131               CAL-ER (PER09) 2023:273:13:31:42.789   3.0   --    --  314.4000  34.8000 248.24 122.27  52.62   
 ----      44130               CAL-ER (CAL01) 2023:273:16:55:00.000   2.8   --    --  314.4000  34.8000 248.39 122.19   0.15   
 ----      44129               CAL-ER (CAL01) 2023:273:17:50:10.000   0.9   --    --  314.4000  34.8000 248.43 122.17   0.04   
 ----      44128               CAL-ER (CAL01) 2023:273:18:33:07.130   8.0   --    --    0.0204   5.6975 245.78 172.97  52.96   
 ----      44127               CAL-ER (PER11) 2023:273:21:21:12.490   7.4   --    --  274.6000   3.9000 272.96  88.27  86.65   
704727 P1  26806    0    SDSS J082603.32+3428 2023:274:00:10:34.924   4.6 ACIS-S NONE 126.5146  34.4403  69.54  67.55 137.43 dss pspc rass
704651     28935    0             Slug nebula 2023:274:02:07:32.981  11.0 ACIS-I NONE  13.0245   1.0067  90.00 173.39 111.60 dss pspc rass
801943     25750    0         IRAS 09104+4109 2023:274:05:53:24.703  10.0 ACIS-S NONE 138.4484  40.9308  65.99  62.17 121.63 dss pspc rass
704651     28936    0             Slug nebula 2023:274:09:22:46.857  11.0 ACIS-I NONE  13.0242   1.0047  87.00 173.60 122.41 dss pspc rass
801943     28933    0         IRAS 09104+4109 2023:274:13:08:49.010  10.0 ACIS-S NONE 138.4484  40.9292  65.99  62.43 122.41 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 09/29/23



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