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.

JUL2318B


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     49096       CAL-ER (PER01) 2018:203:12:56:05.368  17.0   --    --  314.9281   1.3025 149.47 154.78  52.15   
 ----     49095       CAL-ER (PER06) 2018:203:18:18:36.373   3.0   --    --  126.0000  72.5000 355.02  52.32 106.58   
 ----     49094       CAL-ER (CTI01) 2018:203:22:42:53.086   3.0   --    --  304.0000  -6.0000 172.30 165.69 113.58   
801791    20778 0    1E 2216/1E 2215 2018:204:00:28:31.274  38.0 ACIS-I NONE 334.6255  -3.8042 125.00 144.31  58.08 dss pspc rass
703491 P1 20386 0      VHSJ2212-4624 2018:204:11:35:20.832   9.0 ACIS-S NONE 333.0734 -46.4342  53.77 143.69  80.97 dss pspc rass
590562    20718 2    RXJ 1856.5-3754 2018:204:14:37:33.777  30.0 ACIS-S LETG 284.0981 -37.8838 312.82 155.96  75.22 dss pspc rass
703599    21048 0           NGC 3393 2018:204:23:34:34.099  41.0 ACIS-S NONE 162.1067 -25.1391 223.78  58.95  96.77 dss pspc rass
503010    20316 1       ZTF18aaqjovh 2018:205:11:27:32.336  10.0 ACIS-S NONE 178.1744  25.6979 260.00  50.40  63.62 dss pspc rass
801762    20912 0         Abell 2146 2018:205:14:43:00.086  34.6 ACIS-I NONE 238.9181  66.3695 236.13  81.41  59.83 dss pspc rass
 ----     49093       CAL-ER (CTI02) 2018:206:00:54:57.409   8.0   --    --  299.9067  -9.9335 191.00 169.40  88.25   
 ----     49092       CAL-ER (PER02) 2018:206:03:25:59.702   8.0   --    --  306.8577  -8.7461 177.00 168.72  16.65   
 ----     49091       CAL-ER (PER03) 2018:206:05:59:07.343  17.0   --    --  313.4858   4.0849 159.48 154.54  22.87   
 ----     49090       CAL-ER (PER04) 2018:206:11:19:24.362   3.0   --    --   60.2872  54.2611  80.87  59.16  96.53   
 ----     49089       CAL-ER (CTI03) 2018:206:13:52:31.103   3.0   --    --  329.6317 -12.3521 115.00 154.88 100.96   
801791    21131 0    1E 2216/1E 2215 2018:206:15:38:09.103  32.0 ACIS-I NONE 334.6239  -3.8034 125.00 146.77  13.55 dss pspc rass
901405    20362 0        JWST-DTDF-5 2018:207:01:09:31.524  46.0 ACIS-I NONE 260.7609  65.8490 234.00  88.36 101.43 dss pspc rass
801791    21132 0    1E 2216/1E 2215 2018:207:14:34:13.931  36.0 ACIS-I NONE 334.6213  -3.8019 125.00 147.70 101.43 dss pspc rass
 ----     49088       CAL-ER (IAT01) 2018:208:01:07:53.702   0.9   --    --  297.2226   5.4954 199.12 153.75  81.73   
801762    21135 0         Abell 2146 2018:208:01:55:15.675  22.0 ACIS-I NONE 238.9171  66.3667 236.13  81.06  72.82 dss pspc rass
 ----     49087       CAL-ER (IAT02) 2018:208:08:32:18.726   0.9   --    --  298.7383  12.2594 193.53 147.65  66.98   
801791    21133 0    1E 2216/1E 2215 2018:208:09:20:14.787  25.5 ACIS-I NONE 334.6210  -3.8018 125.00 148.43  75.38 dss pspc rass
 ----     49086       CAL-ER (CTI04) 2018:208:16:59:41.634   6.0   --    --  292.6853   4.8173 201.00 152.34  85.27   
 ----     49085       CAL-ER (PER05) 2018:208:19:28:01.499   2.0   --    --  301.8854 -43.4090 348.79 155.38 147.74   
 ----     49084       CAL-ER (PER07) 2018:208:20:33:28.005   2.0   --    --  332.7136 -27.3079  76.53 154.92  74.74   
 ----     49083       CAL-ER (PER08) 2018:208:21:41:17.569   6.0   --    --   66.8228 -17.7815 119.12  69.58  85.47   
 ----     49082       CAL-ER (PER09) 2018:208:23:56:33.182   3.0   --    --  325.1525 -37.3965  45.96 155.79  88.92   
 ----     49081       CAL-ER (CTI05) 2018:209:05:21:58.937   3.0   --    --  305.3588   8.4895 183.73 152.41 146.67   
801762    21136 0         Abell 2146 2018:209:07:09:33.154  22.0 ACIS-I NONE 238.9175  66.3678 236.13  80.87  72.99 dss pspc rass
291419    20708 2               HZ43 2018:209:13:41:42.370  20.0  HRC-S LETG 199.0827  29.1150 261.26  65.20  44.83 dss pspc rass
801730    20516 0 ClG J114853+111438 2018:209:19:37:04.069  10.0 ACIS-I NONE 177.2095  11.2297 254.64  48.20  30.62 dss pspc rass
201180    20163 0          Wolf 1061 2018:209:22:55:38.053  39.0 ACIS-S NONE 247.5706 -12.6491 255.51 121.85  73.80 dss pspc rass
 ----     49080       CAL-ER (IAT03) 2018:210:10:06:59.675   0.9   --    --  276.3280 -17.7652 263.11 149.59  28.19   
801791    21134 0    1E 2216/1E 2215 2018:210:11:12:24.245  17.0 ACIS-I NONE 334.6208  -3.8017 125.00 150.37 154.02 dss pspc rass
801738 P1 20524 0     Perseus r200 S 2018:210:16:29:16.227   8.0 ACIS-I NONE  49.6584  40.1521  97.82  69.83  81.15 dss pspc rass
703548    20443 0    SDSS J1236+6554 2018:210:19:15:17.299  45.4 ACIS-S NONE 189.1379  65.9253 289.84  61.13  77.33 dss pspc rass
 ----     49079       CAL-ER (CTI07) 2018:211:08:25:51.344   3.0   --    --  260.0000   3.0000 244.05 126.93  79.67   
 ----     49078       CAL-ER (PER11) 2018:211:09:51:00.354   3.0   --    --  293.3450 -45.4376 328.49 149.99  88.43   


JUL1618B


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
601424    20749 0      Bania Clump 2 2018:197:11:38:01.012  41.0 ACIS-I NONE 267.9157 -26.2744 274.99 154.31  45.29 dss pspc rass
801768 P1 20569 0     SDSSJ1138+2754 2018:197:23:40:15.345   8.2 ACIS-I NONE 174.5222  27.8753 263.34  53.13 105.33 dss pspc rass
 ----     49110       CAL-ER (CTI04) 2018:198:02:35:02.399   2.0   --    --  272.4735 -11.4471 243.60 155.30 102.28   
 ----     49109       CAL-ER (CTI01) 2018:198:03:57:33.107  28.0   --    --  313.8413 -40.6177  52.00 155.52 151.55   
 ----     49108       CAL-ER (PER06) 2018:198:12:24:22.194   3.0   --    --   73.5654  -1.6884 120.97  47.84 110.93   
 ----     49107       CAL-ER (PER02) 2018:198:13:59:23.171   1.0   --    --  151.3670  63.7702 314.78  48.49 132.82   
 ----     49106       CAL-ER (CTI05) 2018:198:15:27:25.087   3.0   --    --  293.5401   2.7771 187.16 155.86 107.83   
801762    20557 0         Abell 2146 2018:198:17:15:03.106  50.0 ACIS-I NONE 238.9198  66.3708 234.13  82.45  74.43 dss pspc rass
801809    21064 0 PSZ2 G218.59+71.31 2018:199:07:38:11.113  10.0 ACIS-I NONE 172.4298  23.7928 260.02  50.67  64.35 dss pspc rass
503023    20330 1     PSR J1809-1917 2018:199:11:04:00.842  33.0 ACIS-I NONE 272.4254 -19.2770 251.00 156.41 106.48 dss pspc rass
801762    21130 0         Abell 2146 2018:199:20:50:32.846  33.0 ACIS-I NONE 238.9193  66.3698 234.13  82.29  94.65 dss pspc rass
503023    21126 1     PSR J1809-1917 2018:200:06:37:04.852  40.5 ACIS-I NONE 272.4254 -19.2771 251.00 155.64  94.65 dss pspc rass
 ----     49105       CAL-ER (CTI10) 2018:200:18:23:45.753   1.0   --    --  296.3447   3.9307 185.52 155.17  75.42   
 ----     49104       CAL-ER (CTI06) 2018:200:19:29:10.474  30.0   --    --  317.2293 -39.3087  45.68 155.69 149.60   
 ----     49103       CAL-ER (CAL01) 2018:201:04:43:17.814   1.0   --    --  286.9004   1.2818 208.11 154.90 173.80   
 ----     49102       CAL-ER (CAL01) 2018:201:05:39:25.702   1.0   --    --  156.9236  59.5488 308.79  47.14 107.84   
 ----     49101       CAL-ER (CTI07) 2018:201:07:00:10.534   3.0   --    --  156.9236  59.5488 308.86  47.13   0.07   
801742    20940 0 SpARCS104922.6+56403 2018:201:08:45:48.534  53.0 ACIS-I NONE 162.2986  56.6621 301.04  47.81   5.20 dss pspc rass
 ----     49100       CAL-ER (IAT02) 2018:202:00:10:04.064   0.9   --    --  286.9526  -6.9226 221.72 161.40 114.41   
601424    21127 0      Bania Clump 2 2018:202:00:55:28.959  38.0 ACIS-I NONE 267.9138 -26.2716 274.99 150.00  64.04 dss pspc rass
 ----     49099       CAL-ER (CAL01) 2018:202:11:59:13.581   0.9   --    --  283.8106  -0.3002 218.10 154.06  67.10   
801742    21129 0 SpARCS104922.6+56403 2018:202:12:54:11.609  48.5 ACIS-I NONE 162.2975  56.6625 301.04  47.47 107.03 dss pspc rass
 ----     49098       CAL-ER (CAL01) 2018:203:03:03:24.816   0.9   --    --  288.1572  -6.0102 220.26 160.91 114.24   
601424    21128 0      Bania Clump 2 2018:203:03:49:17.269  20.7 ACIS-I NONE 267.9136 -26.2712 274.99 148.93  66.11 dss pspc rass
 ----     49097       CAL-ER (CTI09) 2018:203:10:10:10.479   3.0   --    --  293.5450   3.0508 198.12 155.41  89.34   


Previous weeks' short-term schedules.

Last modified: 07/20/18



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