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.

JUL2417C


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
703365 P1 19517 0 SDSS J233602.98+0017 2017:205:06:10:43.585  11.0 ACIS-S NONE 354.0293   0.2780 115.22 126.65  80.85 dss pspc rass
300396    19013 0           NGC 6752 2017:205:09:56:23.272  44.0 ACIS-S NONE 287.6808 -59.9860 333.47 138.19 120.73 dss pspc rass
601348 P1 19391 0           NGC 4216 2017:205:22:49:24.702   9.6 ACIS-S NONE 183.9724  13.1701 254.86  57.38 108.86 dss pspc rass
 ----     49894       CAL-ER (P8101) 2017:206:02:22:00.000   0.3   --    --  138.0000 -30.0000 196.48  51.37  78.35   
 ----     49893       CAL-ER (P8102) 2017:206:03:50:40.675   0.3   --    --  300.9696 -44.1197 352.12 155.37 104.30   
 ----     49892       CAL-ER (P8103) 2017:206:05:29:44.740   0.3   --    --  319.0000   2.0000 147.37 154.09 151.07   
 ----     49891       CAL-ER (P8104) 2017:206:14:00:00.000   0.3   --    --   78.8100  61.0000  58.87  52.40 102.19   
 ----     49890       CAL-ER (P8105) 2017:206:15:49:42.619   0.3   --    --  131.0000 -30.0000 187.49  49.90 160.78   
300396    20121 0           NGC 6752 2017:206:17:37:20.619  18.4 ACIS-S NONE 287.6777 -59.9860 333.47 137.69  88.01 dss pspc rass
601402    19704 3              SgrA* 2017:206:23:12:00.822  86.4 ACIS-S NONE 266.4026 -28.9886 276.22 143.50  53.42 dss pspc rass
601377 P1 19420 0           NGC 4197 2017:207:23:46:45.612   8.0 ACIS-S NONE 183.6575   5.8285 250.87  57.34  86.61 dss pspc rass
801707    19770 0      A1132_G149.21 2017:208:02:30:49.758  20.0 ACIS-I NONE 164.6280  56.7641 306.94  47.03  68.56 dss pspc rass
201100    18907 0           M17SWexC 2017:208:08:45:18.306  31.7 ACIS-I NONE 274.8000 -16.6967 257.00 149.66 115.39 dss pspc rass
 ----     49888       CAL-ER (P8201) 2017:208:18:27:00.000   0.3   --    --  298.0000   4.7500 200.18 154.57  66.43   
 ----     49887       CAL-ER (P8202) 2017:208:19:56:01.293   0.3   --    --  171.9451  54.6072 298.15  49.13 105.85   
 ----     49886       CAL-ER (P8203) 2017:209:02:00:00.000   0.3   --    --  182.9584  33.6332 271.76  51.34  28.99   
 ----     49885       CAL-ER (P8204) 2017:209:04:30:00.000   0.3   --    --   78.8100  61.0000  61.25  54.00  88.46   
 ----     49884       CAL-ER (P8205) 2017:209:06:48:13.530   0.3   --    --  131.0000 -30.0000 184.37  49.08 157.34   
601301 P1 19344 0           NGC 4605 2017:209:08:33:51.530  10.0 ACIS-S NONE 189.9637  61.6272 285.43  60.39 147.22 dss pspc rass
401868    19001 0            Aql X-1 2017:209:11:56:47.257  75.0 ACIS-S HETG 287.8249   0.6079 223.95 152.39  93.43 dss pspc rass
300396    20122 0           NGC 6752 2017:210:09:29:01.258  68.0 ACIS-S NONE 287.6741 -59.9860 333.46 136.03 120.30 dss pspc rass
601384 P1 19427 0           NGC 4276 2017:211:05:00:55.395  15.0 ACIS-S NONE 185.0282   7.7151 251.00  55.01 103.81 dss pspc rass
 ----     49882       CAL-ER (P8301) 2017:211:10:05:00.000   0.1   --    --  284.0000 -10.2600 248.78 153.90 100.24   
 ----     49881       CAL-ER (P8302) 2017:211:11:30:59.271   0.3   --    --  323.5000   2.1200 147.09 155.34 110.19   
 ----     49880       CAL-ER (P8303) 2017:211:20:00:00.000   0.3   --    --   76.0000  56.0000  69.55  55.03 100.56   
 ----     49879       CAL-ER (P8304) 2017:211:22:38:43.766   0.3   --    --  131.0000 -30.0000 181.14  48.34 147.62   
300396    20123 0           NGC 6752 2017:212:00:22:57.766  50.0 ACIS-S NONE 287.6755 -59.9860 333.46 135.29  88.05 dss pspc rass


JUL1717A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     49916       CAL-ER (P7802) 2017:198:06:36:32.521   1.0   --    --  312.7000  -2.7000 140.88 155.75  81.19   
 ----     49915       CAL-ER (P7803) 2017:198:10:00:00.000   1.0   --    --   64.0000  36.0000  86.93  47.98 108.85   
 ----     49914       CAL-ER (P7804) 2017:198:11:30:00.000   1.0   --    --  136.7000  67.4000 334.64  47.91  70.18   
 ----     49913       CAL-ER (P7805) 2017:198:17:30:48.108   1.0   --    --  293.3000   2.9000 188.47 155.72 107.79   
901134    17238 1    Sgr A complex 1 2017:198:19:16:26.117  66.0 ACIS-I NONE 266.5430 -28.8982 277.99 151.32 102.24 dss pspc rass
401882    19712 1       NGC 1313 X-1 2017:199:14:16:29.504  50.0 ACIS-S HETG  49.6412 -66.4942 135.05 100.91 110.50 dss pspc rass
201098    18905 0        G11.11-0.12 2017:200:04:53:14.773  50.8 ACIS-I NONE 272.6075 -19.3587 270.00 155.64 125.65 dss pspc rass
 ----     49911       CAL-ER (P7901) 2017:200:19:50:51.552   1.0   --    --  170.5000  17.2000 257.24  48.51 107.00   
 ----     49910       CAL-ER (P7902) 2017:200:21:15:00.000   1.0   --    --  134.0000 -25.0000 198.78  47.93  76.82   
 ----     49909       CAL-ER (P7903) 2017:201:02:00:00.000   1.0   --    --  294.8000 -44.7000 349.53 155.70 108.16   
 ----     49908       CAL-ER (P7904) 2017:201:04:00:00.000   1.0   --    --  312.0000   0.5000 150.66 155.52 156.32   
 ----     49907       CAL-ER (P7905) 2017:201:08:32:18.390   1.0   --    --  294.8000 -44.7000 348.95 155.60 156.85   
502931    19281 1       PSR B1259-63 2017:201:10:07:40.249  39.0 ACIS-I NONE 195.6914 -63.8151 246.99 102.46  56.08 dss pspc rass
901347    19449 0             GX 5-1 2017:201:21:28:22.121  87.0 ACIS-S HETG 270.2715 -25.0589 273.19 152.08  68.39 dss pspc rass
801656    18893 0           NGC 6338 2017:202:22:17:36.101  45.1 ACIS-S NONE 258.8159  57.4269 203.02  94.61 106.80 dss pspc rass
 ----     49905       CAL-ER (P8001) 2017:203:11:33:49.776   1.0   --    --  294.0000  -8.0000 210.86 165.64  75.35   
 ----     49904       CAL-ER (P8002) 2017:203:14:30:00.000   1.0   --    --  312.0000   2.0000 156.46 155.69  58.76   
 ----     49903       CAL-ER (P8003) 2017:203:22:00:00.000   1.0   --    --  136.7000  67.4000 341.61  48.15 110.96   
 ----     49902       CAL-ER (P8004) 2017:204:00:09:52.703   1.0   --    --  312.0000   2.0000 157.17 155.93 110.91   
901134    20118 1    Sgr A complex 1 2017:204:01:55:30.787  14.0 ACIS-I NONE 266.5441 -28.8996 277.99 146.37 137.70 dss pspc rass
901347    20119 0             GX 5-1 2017:204:06:09:54.387  13.0 ACIS-S HETG 270.2714 -25.0587 273.19 149.84   8.24 dss pspc rass
502931    20116 1       PSR B1259-63 2017:204:10:17:16.259  21.0 ACIS-I NONE 195.6915 -63.8158 246.99 100.68  68.39 dss pspc rass
801656    20117 0           NGC 6338 2017:204:16:52:56.113  13.0 ACIS-S NONE 258.8150  57.4263 203.02  94.33 135.74 dss pspc rass
502971    19986 1          CSS161010 2017:204:21:17:15.637  30.0 ACIS-S NONE  74.6595  -8.3135 118.00  55.45 144.71 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 07/21/17



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