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.

MAY0117B


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
703352 P1 19504 0         J1221+1137 2017:121:04:17:48.761  23.4 ACIS-S NONE 185.2754  11.6522 231.60 137.77 167.90 dss pspc rass
 ----     P4902       CAL-ER (50111) 2017:121:11:20:56.150   0.3   --    --  202.0047   4.3569 219.85 154.51  20.37   
 ----     P4903       CAL-ER (50110) 2017:121:13:05:13.910   0.1   --    --  240.7821 -28.9238  60.72 155.38 169.19   
 ----     P4904       CAL-ER (50109) 2017:121:17:54:27.389   0.1   --    --  227.5455   7.9799 159.66 155.25 106.78   
 ----     P4905       CAL-ER (50108) 2017:122:00:53:58.368   0.3   --    --   51.1759  62.8973 344.44  48.34 109.40   
801501    19944 0 Abell 1795 outskirts 2017:122:04:04:56.208  27.0 ACIS-I NONE 206.6321  26.7649 197.77 136.14  88.23 dss pspc rass
201002    16681 1          ALPHA CEN 2017:122:12:26:48.211  10.0  HRC-I NONE 219.8227 -60.8485   0.29 134.57 163.65 dss pspc rass
502813    19163 0         G330.2+1.0 2017:122:15:39:34.211  75.0 ACIS-I NONE 240.2085 -51.5747  29.96 140.36  19.22 dss pspc rass
401842 P1 18974 0    IGR J16246-4556 2017:123:12:57:34.211   5.0 ACIS-I NONE 246.0838 -45.9417  43.53 143.02  11.41 dss pspc rass
502523    17904 0           30 Dor C 2017:123:14:52:51.913  40.9 ACIS-S NONE  83.9843 -69.1427 205.04  90.23  74.08 dss pspc rass
 ----     P5002       CAL-ER (50106) 2017:124:03:00:02.566   0.3   --    --  216.0000 -40.0000 348.00 155.50  67.62   
 ----     P5003       CAL-ER (50105) 2017:124:04:20:21.925   0.1   --    --  245.0000 -28.0000  66.25 154.91  66.71   
 ----     P5004       CAL-ER (50104) 2017:124:16:06:59.089   0.2   --    --  213.3975 -39.6491 340.56 155.34  72.80   
 ----     P5005       CAL-ER (50103) 2017:124:17:19:38.878   0.3   --    --   53.3151 -30.7266 194.98  48.11 107.23   
502637    20067 0      SNR 0509-68.7 2017:124:19:15:46.232  30.0 ACIS-S NONE  77.2775 -68.7055 213.88  88.52  40.42 dss pspc rass
502965 P1 19722 0         3xmm153559 2017:125:04:04:56.230  25.0 ACIS-I NONE 234.0418 -49.7661  20.16 145.07  61.50 dss pspc rass
502813    20068 0         G330.2+1.0 2017:125:11:27:42.230  75.0 ACIS-I NONE 240.2096 -51.5737  29.96 141.97   6.61 dss pspc rass
201139 P1 18946 0 2MASS J23351050-0223 2017:126:08:56:01.699   3.0 ACIS-S NONE 353.8142  -2.4074 113.06  52.41 102.71 dss pspc rass
601274 P1 19317 0            NGC2258 2017:126:10:28:30.137   8.0 ACIS-S NONE 101.8754  74.4949 296.43  65.89 121.38 dss pspc rass
801594    18270 0            LGG 402 2017:126:13:09:07.137  19.2 ACIS-S NONE 234.6695  59.3671 170.00 103.50  42.67 dss pspc rass
 ----     P5102       CAL-ER (50101) 2017:126:19:10:33.972   0.3   --    --  218.2415   6.9029 192.91 155.81  55.34   
 ----     P5103       CAL-ER (50100) 2017:126:20:45:57.054   0.2   --    --  248.0000 -28.0000  68.28 154.99 134.49   
 ----     P5104       CAL-ER (50099) 2017:127:02:26:34.041   0.1   --    --  227.4300   7.9867 172.29 155.01 113.04   
 ----     P5105       CAL-ER (50098) 2017:127:07:17:10.140   0.3   --    --   43.3819  64.0244   1.13  47.21 107.95   
801594    20069 0            LGG 402 2017:127:09:04:48.122  23.0 ACIS-S NONE 234.6709  59.3673 170.00 103.33  56.33 dss pspc rass
801501    17228 0 Abell 1795 outskirts 2017:127:15:55:25.122  60.0 ACIS-I NONE 207.2290  26.6083 203.11 133.33  40.07 dss pspc rass


APR2417A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     P4602       CAL-ER (50129) 2017:113:15:45:21.661   3.0   --    --  207.0000 -37.0000 350.15 155.36  21.50   
 ----     P4603       CAL-ER (50128) 2017:113:17:14:37.606   3.0   --    --   39.2214 -35.1660 190.45  48.44 106.95   
 ----     P4604       CAL-ER (50127) 2017:113:18:43:53.548   3.0   --    --  207.0000 -37.0000 349.91 155.40 106.95   
 ----     P4605       CAL-ER (50126) 2017:113:23:00:00.000   3.0   --    --   39.2215 -35.1660 190.07  48.48 106.95   
401892    20054 0       PSR B1259-63 2017:114:05:27:13.294  65.0 ACIS-I NONE 195.6578 -63.8396 339.98 127.75  79.24 dss pspc rass
401876    19599 1       MXB 1659-298 2017:115:00:00:25.555  30.0 ACIS-S NONE 255.5298 -29.9662  69.60 136.86  64.67 dss pspc rass
703355    19507 0         J1306+0735 2017:115:09:11:58.658  29.5 ACIS-S NONE 196.7335   7.6068 215.00 153.76 162.23 dss pspc rass
201056    17747 1      S255IR NIRS 3 2017:115:18:02:03.804  35.0 ACIS-S NONE  93.2121  18.0097 274.50  57.76 103.14 dss pspc rass
 ----     P4701       CAL-ER (50123) 2017:116:04:39:00.000   3.0   --    --  198.0000  -3.3000 235.63 161.55 106.36   
 ----     P4702       CAL-ER (50122) 2017:116:10:56:00.000   3.0   --    --  207.0000 -37.0000 343.60 155.80 108.69   
 ----     P4703       CAL-ER (50121) 2017:116:13:00:00.000   3.0   --    --   39.2214 -35.1660 186.81  49.03 106.97   
 ----     P4704       CAL-ER (50120) 2017:116:14:29:16.328   3.0   --    --  207.0000 -37.0000 343.27 155.80 106.97   
502637    19923 0      SNR 0509-68.7 2017:116:19:35:03.159  59.0 ACIS-S NONE  77.2552 -68.7021 235.01  87.84  69.00 dss pspc rass
703461 P1 19746 0        PG 1302-102 2017:117:12:37:53.565  10.0  HRC-I NONE 196.3780 -10.5399 270.00 161.60 108.03 dss pspc rass
703355    20064 0         J1306+0735 2017:117:15:52:52.944  25.0 ACIS-S NONE 196.7335   7.6069 215.00 151.84  57.70 dss pspc rass
890144    19879 2              A1795 2017:117:23:16:49.944  20.0 ACIS-S NONE 207.2205  26.6009 191.87 138.63  29.24 dss pspc rass
890145    19880 2              A1795 2017:118:04:58:39.944  15.0 ACIS-S NONE 207.5081  26.6548 191.75 138.51   0.26 dss pspc rass
201044    17733 0         Kepler-444 2017:118:09:40:08.015  20.5 ACIS-S NONE 289.7744  41.6186 111.98  92.08  71.86 dss pspc rass
291353    19836 2              ArLac 2017:118:15:43:49.349   5.0  HRC-I NONE 332.1800  45.7252  81.14  61.60  30.60 dss pspc rass
703376 P1 19528 0 2MASSi J0729087+4008 2017:118:17:44:21.176   8.3 ACIS-S NONE 112.2751  40.1625 267.55  70.44  97.64 dss pspc rass
 ----     P4801       CAL-ER (50117) 2017:118:20:35:00.000   3.0   --    --   90.0000  39.0000 282.05  53.17  17.16   
 ----     P4802       CAL-ER (50116) 2017:118:22:04:49.990   3.0   --    --  206.0000   1.0000 212.90 161.65 109.50   
 ----     P4803       CAL-ER (50115) 2017:119:03:07:00.000   3.0   --    --  230.0000   6.0000 146.63 155.51  68.77   
 ----     P4804       CAL-ER (50114) 2017:119:07:40:00.000   3.0   --    --  347.0000  44.0000  70.83  51.30 104.65   
201044    20066 0         Kepler-444 2017:119:11:49:25.501  20.0 ACIS-S NONE 289.7748  41.6183 111.98  92.57  41.20 dss pspc rass
890146    19881 2              A1795 2017:119:17:54:22.419  20.0 ACIS-S NONE 207.5052  26.6633 193.70 137.73  72.52 dss pspc rass
801576    18252 0         Abell 1914 2017:119:23:54:59.419  28.0 ACIS-I NONE 216.5202  37.8382 180.85 127.50  15.69 dss pspc rass
703355    20065 0         J1306+0735 2017:120:08:06:56.419  36.5 ACIS-S NONE 196.7335   7.6068 215.00 149.56  43.56 dss pspc rass
901341    19957 0             GX 3+1 2017:120:19:05:00.052  30.0 ACIS-S HETG 266.9917 -26.5853  82.00 132.99 154.02 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 04/28/17



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