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.

JAN1518A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
502974 P1 20090 0  3FGL J1016.5-6034 2018:015:04:21:41.144   2.0 ACIS-I NONE 153.9238 -60.5124  34.45  92.86  57.63 dss pspc rass
 ----     49490       CAL-ER (IAT03) 2018:015:05:24:22.431   0.9   --    --  128.4505  -1.6661  26.12 154.38  62.35   
601290    20934 0             DDO 68 2018:015:06:14:35.982   9.9 ACIS-S NONE 149.2061  28.8104  99.99 149.69  85.69 dss pspc rass
801704    19767 0              A1234 2018:015:09:24:52.982  22.9 ACIS-I NONE 170.6345  21.4393  85.00 130.15  21.50 dss pspc rass
 ----     49489       CAL-ER (CTI01) 2018:015:16:19:00.723   3.0   --    --  247.2523   5.4380  59.81  55.67  75.67   
 ----     49488       CAL-ER (PER01) 2018:015:17:47:29.362  17.0   --    --  142.4310  15.2510  72.54 155.39 103.40   
 ----     49487       CAL-ER (PER04) 2018:015:23:09:14.512   1.0   --    --  246.0119   1.5246  62.87  55.13 103.14   
 ----     49486       CAL-ER (PER05) 2018:016:00:03:39.523  10.0   --    --  144.1169  24.9012  93.56 155.25 100.13   
 ----     49485       CAL-ER (PER06) 2018:016:03:28:07.493   1.0   --    --  246.6404   2.3331  62.23  55.11 100.35   
 ----     49484       CAL-ER (CTI02) 2018:016:04:28:02.174   3.0   --    --  148.0000  11.0000  67.18 149.29  98.44   
502947    19300 0             RCW 89 2018:016:06:51:45.173  21.0 ACIS-S NONE 228.4245 -59.0310  94.02  61.56  95.97 dss pspc rass
502933    20931 1         GRB161219B 2018:016:13:16:35.803  15.1 ACIS-S NONE  91.6899 -26.7921 334.99 125.82  87.05 dss pspc rass
 ----     49483       CAL-ER (IAT01) 2018:016:17:49:42.713   0.9   --    --  107.4615  -2.7809 336.35 154.01  28.50   
601290    19333 0             DDO 68 2018:016:18:51:41.071  50.0 ACIS-S NONE 149.2052  28.8114  99.99 151.01 138.55 dss pspc rass
703433    19636 1      SDSS1004+4112 2018:017:09:04:32.060  36.5 ACIS-S NONE 151.1659  41.1991 117.00 146.03  21.99 dss pspc rass
201203    20874 1             DM Tau 2018:017:19:57:17.346   4.0 ACIS-S NONE  68.4386  18.1868 281.84 132.02 130.15 dss pspc rass
402020    20936 0           GW170817 2018:017:21:55:17.350  32.1 ACIS-S NONE 197.4513 -23.4028  66.00  92.26 161.25 dss pspc rass
 ----     49482       CAL-ER (CTI07) 2018:018:07:21:15.487   6.0   --    --  135.9150  11.0608  56.14 161.96  69.36   
 ----     49481       CAL-ER (PER02) 2018:018:09:28:29.160  11.0   --    --  124.1003  -6.9991   8.10 152.15  52.78   
 ----     49480       CAL-ER (PER08) 2018:018:13:08:00.111   1.0   --    --  285.3326 -79.3946 163.72  59.26  93.07   
 ----     49479       CAL-ER (PER09) 2018:018:14:01:36.540   3.0   --    --  123.9228  -3.5947   8.29 155.63  96.48   
 ----     49478       CAL-ER (PER13) 2018:018:15:45:05.278   4.0   --    --  120.5400  46.3300 179.61 154.17 170.91   
 ----     49477       CAL-ER (PER14) 2018:018:17:45:19.473   1.0   --    --  124.0372  -4.6384   7.86 154.62 171.31   
 ----     49476       CAL-ER (PER10) 2018:018:18:39:23.200   1.0   --    --  288.4117 -76.3438 166.36  56.19  98.53   
 ----     49475       CAL-ER (CTI04) 2018:018:19:43:22.189   3.0   --    --   82.0000   5.0000 301.00 139.50 107.60   
502933    19283 1         GRB161219B 2018:018:22:18:16.189  17.0 ACIS-S NONE  91.6911 -26.7920 334.99 125.03  45.81 dss pspc rass
201188    20616 2             GM Aur 2018:019:03:36:34.642  11.5 ACIS-S NONE  73.7861  30.3848 268.22 136.63  87.63 dss pspc rass
703510    20405 0         J0801+4725 2018:019:07:19:21.397  10.0 ACIS-S NONE 120.4335  47.4337 180.98 152.98  68.01 dss pspc rass
601319 P1 19362 0           NGC 3963 2018:019:10:31:18.397   9.5 ACIS-S NONE 178.7711  58.4789 107.28 124.04  43.51 dss pspc rass
601290    20935 0             DDO 68 2018:019:13:35:18.879  50.0 ACIS-S NONE 149.2047  28.8120  99.99 153.35  45.68 dss pspc rass
703580 P1 20477 0 NVSS J101335+281118 2018:020:03:53:55.879   6.0 ACIS-S NONE 153.4113  28.1711  98.44 150.32   3.78 dss pspc rass
402020    20937 0           GW170817 2018:020:06:05:34.032  30.5 ACIS-S NONE 197.4513 -23.4027  66.00  94.57  72.61 dss pspc rass
703588 P1 20485 0 NVSS J162830+115403 2018:020:15:02:58.087   6.0 ACIS-S NONE 247.1253  11.8807  59.94  63.12  61.05 dss pspc rass
703534 P1 20429 0 SDSS J091417.69+2216 2018:020:17:21:13.747  11.0 ACIS-S NONE 138.5851  22.2584  95.23 164.89 102.42 dss pspc rass
801720 P1 20506 0 ClG J095759+191609 2018:020:20:49:50.747   8.2 ACIS-I NONE 149.5097  19.2874  83.68 154.76  13.10 dss pspc rass
 ----     49474       CAL-ER (CTI05) 2018:020:23:53:37.157   3.0   --    --  101.6508  -1.0267 316.53 150.44 139.91   
 ----     49473       CAL-ER (PER03) 2018:021:01:32:04.089   3.8   --    --  149.9295  22.7638  91.14 154.72 148.27   
 ----     49472       CAL-ER (PER17) 2018:021:03:08:48.746   1.0   --    --  186.2542  78.6162 123.00 114.73  84.35   
 ----     49471       CAL-ER (PER11) 2018:021:03:56:15.854   6.0   --    --  333.0000  32.0000 326.92  59.38  68.78   
 ----     49470       CAL-ER (PER12) 2018:021:06:13:58.591   7.0   --    --  127.6118  45.6383 170.32 154.04  99.96   
 ----     49469       CAL-ER (PER15) 2018:021:09:01:05.572   1.0   --    --  129.7446  -4.2229  14.59 155.02 157.27   
 ----     49468       CAL-ER (PER16) 2018:021:09:54:30.693   1.0   --    --  240.1739 -62.4207 104.64  60.07  95.63   
 ----     49467       CAL-ER (CTI06) 2018:021:11:24:24.103   3.0   --    --  135.0000  -3.0000  26.05 154.39  94.28   
502947    20933 0             RCW 89 2018:021:13:46:07.101  39.4 ACIS-S NONE 228.4236 -59.0302  94.02  65.36  89.27 dss pspc rass
402020    20938 0           GW170817 2018:022:01:08:04.101  10.0 ACIS-S NONE 197.4513 -23.4019  66.00  96.34  42.25 dss pspc rass
801721 P1 20507 0 ClG J092921+120505 2018:022:04:24:36.419  14.0 ACIS-I NONE 142.3390  12.1332  64.07 160.87  64.67 dss pspc rass
703619 P1 20754 0         J1046+0243 2018:022:08:41:49.419   4.0 ACIS-S NONE 161.5473   2.7108  62.06 139.82  21.23 dss pspc rass
502947    20932 0             RCW 89 2018:022:10:21:59.962  30.0 ACIS-S NONE 228.4228 -59.0295  94.01  65.96  81.04 dss pspc rass


JAN0818A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     49505       CAL-ER (PER01) 2018:007:19:34:58.198   1.0   --    --  264.8990  22.4777  28.90  50.43 105.61   
 ----     49504       CAL-ER (CAL01) 2018:007:20:30:38.293  12.0   --    --  131.0000  38.0000 122.94 155.26 105.76   
 ----     49503       CAL-ER (CAL01) 2018:008:00:29:38.533   7.0   --    --  264.8990  22.4777  29.16  50.50 105.77   
 ----     49502       CAL-ER (CAL01) 2018:008:03:05:18.489   3.0   --    --  131.0000  38.0000 123.47 155.44 105.75   
 ----     49501       CAL-ER (CTI01) 2018:008:06:05:59.851   3.0   --    --   84.2759  15.7614 289.39 155.65 146.48   
703471    20366 1            Mrk1018 2018:008:08:17:05.252  20.0 ACIS-S NONE  31.5502  -0.2771 292.80 101.28  54.60 dss pspc rass
801692    19755 0   SPT-CLJ2314-5554 2018:008:14:20:42.417  34.0 ACIS-I NONE 348.5191 -55.9149 257.07  54.50  66.54 dss pspc rass
502991 P1 20292 0  3FGL J0626.8+1743 2018:009:00:28:25.266   5.0 ACIS-S NONE  96.6537  17.5988 305.01 166.68 114.96 dss pspc rass
601408    20342 0            Mrk1216 2018:009:02:27:16.656  32.0 ACIS-S NONE 127.1829  -6.9568  25.00 146.35  90.10 dss pspc rass
502982 P1 20283 0     PSR J1534-5334 2018:009:11:57:00.931   3.5 ACIS-S NONE 233.5576 -53.5886 103.28  52.87  94.07 dss pspc rass
601408    20924 0            Mrk1216 2018:009:13:31:45.204  30.0 ACIS-S NONE 127.1827  -6.9571  25.00 146.64  94.07 dss pspc rass
201202    20873 1             DM Tau 2018:009:22:33:59.379   4.0 ACIS-S NONE  68.4385  18.1862 282.94 140.02 120.31 dss pspc rass
502956    19608 1     PSR J2032+4127 2018:010:00:18:34.342  30.5 ACIS-S NONE 308.0264  41.4535 342.67  65.44 100.87 dss pspc rass
 ----     49500       CAL-ER (CTI02) 2018:010:09:25:01.572   3.0   --    --  109.0000  32.0000 192.86 169.75 104.49   
 ----     49499       CAL-ER (PER02) 2018:010:10:52:33.117  19.0   --    --   88.0000  12.0000 297.07 155.44  99.12   
 ----     49498       CAL-ER (PER04) 2018:010:16:47:39.071   1.0   --    --  347.6338 -15.7070 285.88  52.95 103.20   
 ----     49497       CAL-ER (CAL01) 2018:010:17:40:19.885   7.5   --    --   74.2672  20.1338 279.77 144.97  92.31   
 ----     49496       CAL-ER (CAL01) 2018:010:20:21:38.814   1.0   --    --  339.1742   3.3981 301.04  52.63  93.67   
 ----     49495       CAL-ER (CAL01) 2018:010:21:24:42.927   3.0   --    --   89.0000  36.0000 241.10 155.54 103.99   
801739 P1 20525 0    Perseus r200 SE 2018:010:23:56:13.932   8.0 ACIS-I NONE  51.1753  40.5270 269.34 125.80  30.11 dss pspc rass
801740 P1 20526 0     Perseus r200 E 2018:011:02:18:34.854   8.2 ACIS-I NONE  51.7735  41.5203 268.28 126.15   1.28 dss pspc rass
201187    20615 2             GM Aur 2018:011:04:55:58.257  11.5 ACIS-S NONE  73.7866  30.3863 265.49 144.54  23.29 dss pspc rass
801733 P1 20519 0 ClG J085436+003833 2018:011:08:58:30.289   9.0 ACIS-I NONE 133.6673   0.6584  42.74 150.43 159.15 dss pspc rass
502968    19725 2      1E161348-5055 2018:011:12:06:59.098  48.0 ACIS-S NONE 244.4260 -51.0553 109.63  47.31 103.41 dss pspc rass
601408    20925 0            Mrk1216 2018:012:02:04:56.783  32.0 ACIS-S NONE 127.1822  -6.9576  25.00 148.21 101.08 dss pspc rass
703313    19464 2 SDSS J091449.05+0853 2018:012:11:24:17.512  46.5 ACIS-S NONE 138.7059   8.8665  68.00 152.75  47.22 dss pspc rass
 ----     49494       CAL-ER (CTI03) 2018:013:00:34:07.753   3.0   --    --  137.0000  10.0000  59.30 155.33   9.20   
 ----     49493       CAL-ER (PER05) 2018:013:02:00:00.000  11.0   --    --  137.0000  10.0000  59.28 155.40   0.03   
 ----     49492       CAL-ER (PER06) 2018:013:05:40:38.382   1.0   --    --  232.7214 -13.1664  72.60  59.25  98.13   
 ----     49491       CAL-ER (CAL01) 2018:013:12:55:55.273   3.0   --    --  338.0000   8.0000 305.70  51.57 152.87   
402019    20928 0 LAMOST J061149+22493 2018:013:15:23:27.334  10.0 ACIS-S NONE  92.9451  22.8473 265.00 159.57 109.39 dss pspc rass
703363    19515 0 SDSS J100220.18+4509 2018:013:18:53:10.301  33.0 ACIS-S NONE 150.6090  45.1425 113.02 142.55 123.97 dss pspc rass
703587 P1 20484 0 SDSS J161105.64+0844 2018:014:04:37:38.343   6.0 ACIS-S NONE 242.7714   8.7204  58.97  59.92  85.35 dss pspc rass
703438    19641 1         Q2237+0305 2018:014:07:02:21.138  35.0 ACIS-S NONE 340.1070   3.3700 301.73  50.04 131.46 dss pspc rass
502993 P1 20294 0  3FGL J1542.4-5911 2018:014:17:33:49.053   5.0 ACIS-S NONE 235.5670 -59.0445 104.22  56.83 146.84 dss pspc rass
601408    20926 0            Mrk1216 2018:014:19:33:22.778  30.0 ACIS-S NONE 127.1820  -6.9579  25.00 149.77  93.28 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 01/12/18



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