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.

MAY2917A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
201099    18906 0           M17SWexB 2017:149:01:08:40.039  60.0 ACIS-I NONE 274.3677 -17.1186 111.00 152.79  69.35 dss pspc rass
401854    18986 1            Aql X-1 2017:149:18:08:13.841  25.0 ACIS-S NONE 287.8341   0.5699 114.00 134.03  22.14 dss pspc rass
502637    19922 0      SNR 0509-68.7 2017:150:01:47:06.630  41.9 ACIS-S NONE  77.2994 -68.7125 188.05  90.73 120.21 dss pspc rass
 ----     50049       CAL-ER (P6001) 2017:150:14:06:24.645   0.3   --    --  249.1914 -46.5266   3.95 155.24  64.80   
 ----     50048       CAL-ER (P6002) 2017:150:15:39:16.678   2.3   --    --  267.9788  -5.6950 131.09 154.44 123.17   
 ----     50047       CAL-ER (P6003) 2017:150:22:41:41.338   0.3   --    --   17.6052  54.4833  69.45  49.58 106.10   
 ----     50046       CAL-ER (P6004) 2017:151:00:10:20.435   0.3   --    --  265.6509  -1.9442 140.37 153.61 104.18   
 ----     50045       CAL-ER (P6005) 2017:151:02:49:49.060   0.3   --    --  257.7907 -51.9353  17.88 149.00 124.94   
502637    20085 0      SNR 0509-68.7 2017:151:04:35:26.057  15.0 ACIS-S NONE  77.2986 -68.7127 188.05  90.85  60.01 dss pspc rass
601305 P1 19348 0           NGC 5585 2017:151:09:36:17.457   5.0 ACIS-S NONE 214.9721  56.7472 210.82  96.49 159.11 dss pspc rass
801681    19592 0              A2151 2017:151:11:27:37.457  16.5 ACIS-I NONE 241.1623  17.7342 193.00 139.73  43.67 dss pspc rass
201148    19708 1   Proxima Centauri 2017:151:16:50:32.289  45.0  HRC-S LETG 217.3514 -62.6714 314.97 134.10 145.86 dss pspc rass
502967    19724 2      1E161348-5055 2017:152:05:39:09.547  47.8 ACIS-S NONE 244.3680 -51.0437 342.97 150.72  19.26 dss pspc rass
502637    20074 0      SNR 0509-68.7 2017:152:19:24:48.308  31.5 ACIS-S NONE  77.2985 -68.7127 188.05  90.97  60.66 dss pspc rass
 ----     50043       CAL-ER (P6101) 2017:153:04:55:40.097   0.3   --    --  230.9790 -47.1740 321.80 150.64  64.27   
 ----     50042       CAL-ER (P6102) 2017:153:06:36:48.876   2.0   --    --  268.1136  -4.1499 137.62 154.95 160.43   
 ----     50041       CAL-ER (P6103) 2017:153:13:04:31.356   0.2   --    --  224.1505 -36.7489 295.25 153.04 174.92   
 ----     50040       CAL-ER (P6104) 2017:153:14:15:54.180   0.3   --    --  106.0000 -16.0000 223.25  51.67 101.46   
 ----     50039       CAL-ER (P6105) 2017:153:15:43:04.071   0.3   --    --  221.0000 -40.4434 297.16 149.11  97.49   
 ----     50038       CAL-ER (P6106) 2017:153:18:30:20.339   0.3   --    --  221.0000 -10.0000 237.00 149.04  66.77   
801576    20026 0         Abell 1914 2017:153:20:17:58.339  29.2 ACIS-I NONE 216.5055  37.8465 227.00 111.82  49.24 dss pspc rass
201148    20084 0   Proxima Centauri 2017:154:05:07:56.102  30.0  HRC-S LETG 217.3506 -62.6713 314.96 133.60 125.08 dss pspc rass
801681    20086 0              A2151 2017:154:14:15:50.935  30.0 ACIS-I NONE 241.1621  17.7340 193.00 138.68 145.86 dss pspc rass
401795    17863 0  2FGL J0846.0+2820 2017:154:23:13:12.282  20.0 ACIS-I NONE 131.5825  28.1606 261.81  53.74  98.35 dss pspc rass
801681    20087 0              A2151 2017:155:05:23:53.630  35.5 ACIS-I NONE 241.1624  17.7342 193.00 138.45  98.35 dss pspc rass
703381    19533 0 NuSTARJ141056-4230.0 2017:155:15:56:58.691  15.8 ACIS-S NONE 212.7171 -42.4839 288.42 141.32 116.63 dss pspc rass
 ----     50036       CAL-ER (P6201) 2017:155:20:46:45.283   0.3   --    --  198.6496 -42.9206 276.71 131.03  10.55   


MAY2217B


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
703266    18205 0     SDSSJ1652+1728 2017:142:00:38:15.135  15.5 ACIS-S NONE 253.0351  17.4836 159.01 139.71  47.12 dss pspc rass
401840 P1 18972 0    IGR J15541-5613 2017:142:05:46:41.007   5.1 ACIS-I NONE 238.4994 -56.2255 359.30 144.11 159.14 dss pspc rass
401862 P1 18994 0    AX J1740.2-2903 2017:142:07:41:47.258   1.5 ACIS-I NONE 265.0734 -29.0780  75.63 154.86  65.72 dss pspc rass
401855    18987 2            NGC6652 2017:142:08:23:59.266  11.0 ACIS-S NONE 278.9404 -33.0151  74.00 142.46  15.29 dss pspc rass
502637    20053 0      SNR 0509-68.7 2017:142:12:01:44.552  11.3 ACIS-S NONE  77.2977 -68.7129 188.05  90.08  85.15 dss pspc rass
 ----     50062       CAL-ER (P5701) 2017:142:15:55:00.000   0.3   --    --  234.0000 -45.0000 347.98 155.05  65.31   
 ----     50061       CAL-ER (P5702) 2017:143:00:35:00.000   0.3   --    --   85.5000 -22.0000 212.38  49.40 107.35   
 ----     50060       CAL-ER (P5703) 2017:143:04:20:02.698   0.3   --    --   37.0000 -21.0000 150.19  47.21  61.71   
502865    19215 2     PSR J1622-4950 2017:143:05:53:28.128  15.0 ACIS-S NONE 245.6587 -49.8621  10.77 150.35 104.82 dss pspc rass
901341    19890 0             GX 3+1 2017:143:10:31:46.793  30.0 ACIS-S HETG 266.9890 -26.5878  75.00 154.78  57.65 dss pspc rass
502637    18019 0      SNR 0509-68.7 2017:143:19:29:00.108  60.0 ACIS-S NONE  77.3007 -68.7122 188.05  90.18  97.75 dss pspc rass
901349    19451 0         4U 1705-44 2017:144:12:40:18.933  41.0 ACIS-S HETG 257.2102 -44.1200  32.99 153.16  71.16 dss pspc rass
502785    19135 2 CXO J164710.2-455216 2017:145:00:23:20.533  10.0 ACIS-S NONE 251.7716 -45.8875  21.51 153.67   8.73 dss pspc rass
401893    20083 0 Swift J175233.6-2909 2017:145:03:36:31.772   7.8 ACIS-S NONE 268.1458 -29.1860  76.79 154.88  49.59 dss pspc rass
 ----     50058       CAL-ER (P5801) 2017:145:06:33:00.000   0.3   --    --  240.0000 -45.5000 355.49 155.38  68.91   
 ----     50057       CAL-ER (P5802) 2017:145:15:40:00.000   0.3   --    --   37.0000 -21.0000 147.84  48.81 110.74   
 ----     50056       CAL-ER (P5803) 2017:145:17:00:03.278   0.3   --    --    8.0000  18.8000 102.24  51.02  65.49   
 ----     50055       CAL-ER (P5804) 2017:145:20:09:14.014   0.3   --    --  120.0000  20.0000 258.13  53.45 162.46   
703249    19926 0     SDSSJ1030+0524 2017:145:23:18:12.059  50.0 ACIS-I NONE 157.6006   5.4295 262.00  92.55  41.20 dss pspc rass
401838 P1 18970 0    IGR J15038-6021 2017:146:13:46:49.431   5.0 ACIS-I NONE 225.9047 -60.3592 334.84 138.88  89.05 dss pspc rass
901349    20082 0         4U 1705-44 2017:146:15:34:45.927  75.0 ACIS-S HETG 257.2094 -44.1209  32.99 154.34  40.96 dss pspc rass
703443 P1 19728 0         W0126-0529 2017:147:13:04:47.141   3.0 ACIS-S NONE  21.5713  -5.4961 128.00  49.74 110.34 dss pspc rass
703249    20081 0     SDSSJ1030+0524 2017:147:14:46:33.097  25.2 ACIS-I NONE 157.6005   5.4297 262.00  91.00 163.20 dss pspc rass
 ----     50053       CAL-ER (P5901) 2017:147:22:26:00.000   0.3   --    --  120.0000  20.0000 258.09  51.47  41.21   
 ----     50052       CAL-ER (P5902) 2017:147:23:54:37.800   0.3   --    --  219.5000 -16.0000 253.36 155.49 104.09   
 ----     50051       CAL-ER (P5903) 2017:148:11:02:41.852   0.3   --    --  219.5000 -16.0000 253.35 155.02   0.01   
201112    18919 1        WD 1145+017 2017:148:12:48:19.852  10.0 ACIS-S NONE 177.1388   1.5065 246.52 109.61  45.37 dss pspc rass
502955    19700 1     PSR J2032+4127 2017:148:16:17:45.421  30.0 ACIS-S NONE 308.0810  41.4456 124.04  94.50 122.67 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 05/25/17



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