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.

SEP2418A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     48960       CAL-ER (PER02) 2018:267:00:45:05.517  21.5   --    --   19.2887 -17.0964  48.49 154.71  92.66   
 ----     48959       CAL-ER (PER08) 2018:267:07:21:40.385   1.0   --    --  131.9861 -24.6212 109.60  53.08 102.37   
 ----     48958       CAL-ER (PER09) 2018:267:08:24:31.273   1.0   --    --  203.6209  51.5617 331.99  55.39 138.07   
 ----     48957       CAL-ER (CTI04) 2018:267:09:34:17.177   3.0   --    --  355.1739  24.7134 193.75 155.07  99.75   
703564 P1 20461 0 SDSS J132457.29+4802 2018:267:12:45:15.181  14.0 ACIS-S NONE 201.2074  48.0448 333.89  51.58 103.59 dss pspc rass
801725 P1 20511 0 ClG J104513+580833 2018:267:17:05:52.181  11.0 ACIS-I NONE 161.3417  58.1495  22.90  60.78  30.33 dss pspc rass
703661    21020 0       LSBC F612-01 2018:267:20:47:01.197   7.1 ACIS-S NONE  22.5838  14.6683 128.00 154.73 100.43 dss pspc rass
801827    21545 0     CHIPS0005-2758 2018:267:23:31:11.931  32.5 ACIS-I NONE   1.4936 -28.0117 353.00 151.32 136.56 dss pspc rass
 ----     48956       CAL-ER (IAT03) 2018:268:09:19:26.456   0.9   --    --  347.2862  21.1403 216.78 155.24 139.84   
801785    20589 0         Abell 2219 2018:268:10:08:19.384  63.3 ACIS-I NONE 250.0694  46.7171 288.01  75.91  79.64 dss pspc rass
 ----     48955       CAL-ER (IAT07) 2018:269:04:12:25.358   0.9   --    --  154.9944  51.8468  33.10  57.86  62.70   
801818    21856 0           Abell 98 2018:269:05:06:02.050  30.8 ACIS-I NONE  11.6404  20.5314 151.99 158.70 100.93 dss pspc rass
 ----     48954       CAL-ER (CTI09) 2018:269:14:28:07.434   3.0   --    --    5.7342 -24.6994   6.35 153.88 148.19   
 ----     48953       CAL-ER (PER01) 2018:269:16:04:13.169  22.0   --    --  342.5377  18.5339 231.69 153.54 137.68   
 ----     48952       CAL-ER (PER14) 2018:269:23:03:47.654   1.0   --    --   21.1633 -21.5099  39.64 151.15 168.34   
 ----     48951       CAL-ER (PER13) 2018:269:23:49:51.670   1.0   --    --   93.0000 -60.0000  89.07  88.90  62.55   
 ----     48950       CAL-ER (CTI01) 2018:270:01:05:02.027   5.0   --    --   13.2589 -21.4870  24.23 155.09  66.57   
201171    20149 1              l Car 2018:270:04:13:59.990  59.0 ACIS-I NONE 146.3500 -62.5107 139.10  66.96  88.22 dss pspc rass
 ----     48949       CAL-ER (IAT01) 2018:270:21:22:55.772   0.9   --    --  139.7509  55.6583  48.93  67.83 137.23   
801804    21059 0 PSZ2 G113.91-37.01 2018:270:22:14:20.576  10.0 ACIS-I NONE   4.8930  25.3339 177.99 156.48  91.04 dss pspc rass
801818    21534 0           Abell 98 2018:271:01:26:17.576  30.0 ACIS-I NONE  11.6416  20.5314 151.99 159.99  24.64 dss pspc rass
 ----     48948       CAL-ER (IAT08) 2018:271:10:24:44.102   0.9   --    --  162.0000  52.0000  27.11  57.29 103.24   
801785    20951 0         Abell 2219 2018:271:11:09:11.207  64.7 ACIS-I NONE 250.0695  46.7171 288.01  75.02  59.71 dss pspc rass
 ----     48947       CAL-ER (CTI05) 2018:272:05:41:11.314   3.0   --    --  350.0000  16.4000 228.51 159.37  84.90   
 ----     48946       CAL-ER (PER06) 2018:272:07:00:21.395  26.0   --    --  344.6032  -4.2194 287.13 158.24  61.51   
 ----     48945       CAL-ER (PER10) 2018:272:14:52:29.720   3.0   --    --  240.6287   6.5140 277.47  55.63 104.87   
 ----     48944       CAL-ER (CTI07) 2018:272:16:52:09.712   3.0   --    --  345.4083  16.2872 237.43 155.73 102.65   
801810    21065 0 PSZ2 G028.63+50.15 2018:272:20:03:50.759  10.0 ACIS-I NONE 235.0007  17.8474 287.76  52.56 103.52 dss pspc rass
703492 P1 20387 0      VHSJ2220-5618 2018:272:23:30:59.620   9.0 ACIS-S NONE 335.1044 -56.3036 313.97 115.99 112.41 dss pspc rass
801735 P1 20521 0    Perseus r200 NW 2018:273:02:53:32.506   8.0 ACIS-I NONE  49.0401  42.6768 124.12 124.67 166.72 dss pspc rass
201179    21071 0     Kapteyn's Star 2018:273:05:44:09.235  16.0 ACIS-S NONE  77.9767 -45.0668  85.01 100.77  98.00 dss pspc rass
 ----     48943       CAL-ER (IAT06) 2018:273:10:53:09.179   0.9   --    --   98.1367  74.5057  87.55  92.23 120.75   
801818    21857 0           Abell 98 2018:273:11:39:55.142  31.0 ACIS-I NONE  11.6405  20.5314 151.99 161.56  70.12 dss pspc rass
503046    21000 0           SN2013ej 2018:273:20:35:25.142  10.0 ACIS-S NONE  24.2201  15.7516 133.99 158.57  19.04 dss pspc rass


SEP1718A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     48970       CAL-ER (IAT01) 2018:260:00:27:51.657   0.9   --    --  356.5946 -22.9764   6.51 159.33  68.48   
300404    21272 0           LMWD 143 2018:260:01:27:17.032  51.0 ACIS-S NONE 341.3401   7.8675 240.00 163.46 127.08 dss pspc rass
291374    20663 3              ArLac 2018:260:16:04:37.802   5.0  HRC-I NONE 332.1848  45.7586 206.99 128.04  53.31 dss pspc rass
291375    20664 2              ArLac 2018:260:17:38:11.315   1.0  HRC-I NONE 332.2255  45.7755 209.36 128.04   2.40 dss pspc rass
291376    20665 2              ArLac 2018:260:18:03:21.315   1.0  HRC-I NONE 332.1604  45.7882 209.45 128.01   0.07 dss pspc rass
291377    20666 2              ArLac 2018:260:18:28:31.315   1.0  HRC-I NONE 332.1423  45.7427 209.52 128.04   0.07 dss pspc rass
291378    20667 2              ArLac 2018:260:18:53:41.315   1.0  HRC-I NONE 332.2074  45.7301 209.47 128.08   0.05 dss pspc rass
291379    20668 2              ArLac 2018:260:19:18:51.315   1.0  HRC-I NONE 332.2490  45.7465 209.43 128.08   0.03 dss pspc rass
291380    20669 2              ArLac 2018:260:19:44:01.315   1.0  HRC-I NONE 332.2020  45.8046 209.49 128.01   0.07 dss pspc rass
291381    20670 2              ArLac 2018:260:20:09:11.315   1.0  HRC-I NONE 332.1187  45.7717 209.62 128.01   0.10 dss pspc rass
291382    20671 2              ArLac 2018:260:20:34:21.315   1.0  HRC-I NONE 332.1659  45.7137 209.61 128.08   0.07 dss pspc rass
291383    20672 2              ArLac 2018:260:20:59:31.315   1.0  HRC-I NONE 332.2310  45.7012 209.56 128.11   0.05 dss pspc rass
291384    20673 2              ArLac 2018:260:21:24:41.315   1.0  HRC-I NONE 332.2545  45.6722 209.57 128.15   0.04 dss pspc rass
291385    20674 2              ArLac 2018:260:21:49:51.315   1.0  HRC-I NONE 332.2669  45.7920 209.53 128.05   0.12 dss pspc rass
291386    20675 2              ArLac 2018:260:22:15:01.315   1.0  HRC-I NONE 332.3085  45.8084 209.49 128.05   0.03 dss pspc rass
291387    20676 2              ArLac 2018:260:22:40:11.315   1.0  HRC-I NONE 332.1363  45.8170 209.72 127.98   0.16 dss pspc rass
291388    20677 2              ArLac 2018:260:23:05:21.315   1.0  HRC-I NONE 332.1125  45.8459 209.76 127.95   0.04 dss pspc rass
291389    20678 2              ArLac 2018:260:23:30:31.315   1.0  HRC-I NONE 332.1007  45.7259 209.84 128.05   0.14 dss pspc rass
291390    20679 2              ArLac 2018:260:23:55:41.315   1.0  HRC-I NONE 332.0593  45.7092 209.92 128.05   0.06 dss pspc rass
291391    20680 2              ArLac 2018:261:00:20:51.315   1.0  HRC-I NONE 332.0958  45.5313 209.97 128.22   0.19 dss pspc rass
291392    20681 2              ArLac 2018:261:00:46:01.315   1.0  HRC-I NONE 332.5090  45.6961 209.43 128.22   0.41 dss pspc rass
291393    20682 2              ArLac 2018:261:01:11:11.315   1.0  HRC-I NONE 332.2731  45.9861 209.62 127.88   0.33 dss pspc rass
291394    20683 2              ArLac 2018:261:01:36:21.315   1.0  HRC-I NONE 331.8567  45.8195 210.20 127.89   0.44 dss pspc rass
801797    20784 0    ZwCl1447.2+2619 2018:261:02:27:10.018  10.0 ACIS-I NONE 222.3543  26.0742 290.12  51.18  83.90 dss pspc rass
201156    20134 0       Westerlund 2 2018:261:05:59:38.655  33.0 ACIS-I NONE 156.0253 -57.7617 154.03  61.69 136.40 dss pspc rass
 ----     48969       CAL-ER (CTI07) 2018:261:15:49:02.481  31.0   --    --    4.1257 -14.5336  33.57 164.85 105.00   
 ----     48968       CAL-ER (CAL01) 2018:262:01:06:53.339   3.0   --    --  152.5936 -43.1809 148.39  49.59 115.56   
 ----     48967       CAL-ER (CAL01) 2018:262:02:43:32.888   3.0   --    --   12.3484 -20.8360  41.49 155.16 106.39   
201156    21847 0       Westerlund 2 2018:262:05:52:30.893  73.0 ACIS-I NONE 156.0271 -57.7617 154.03  61.52  96.69 dss pspc rass
 ----     48966       CAL-ER (IAT02) 2018:263:02:55:17.787   0.9   --    --  240.5752  31.8015 283.65  67.02 137.77   
300404    21850 0           LMWD 143 2018:263:03:47:34.055  50.0 ACIS-S NONE 341.3402   7.8686 240.00 161.84  94.90 dss pspc rass
703541 P1 20436 0 SDSS J132916.20+5304 2018:263:18:21:24.308  13.0 ACIS-S NONE 202.2799  53.0867 322.03  55.98 112.52 dss pspc rass
801784    20930 0  CIZA J2242.8+5301 2018:263:22:28:49.230  30.1 ACIS-I NONE 340.7152  53.1252 199.98 124.11  68.62 dss pspc rass
 ----     48965       CAL-ER (CTI04) 2018:264:07:14:08.719  27.0   --    --  347.1668  20.9421 207.73 155.75  34.58   
 ----     48964       CAL-ER (PER05) 2018:264:15:21:14.679   3.0   --    --   21.4516   6.8692 107.30 155.85  97.20   
 ----     48963       CAL-ER (CTI05) 2018:264:18:26:26.876   3.0   --    --  352.9300 -24.2908 346.20 155.70 121.12   
201156    21848 0       Westerlund 2 2018:264:21:35:23.514  79.0 ACIS-I NONE 156.0272 -57.7617 154.03  61.04  97.32 dss pspc rass
 ----     48962       CAL-ER (CAL01) 2018:265:20:18:25.041   0.9   --    --  240.5752  31.8015 286.12  65.62 138.86   
300404    21851 0           LMWD 143 2018:265:21:10:41.159  24.0 ACIS-S NONE 341.3402   7.8681 240.00 160.15  94.88 dss pspc rass
801784    21849 0  CIZA J2242.8+5301 2018:266:04:19:30.153  53.0 ACIS-I NONE 340.7134  53.1241 199.99 124.52  59.92 dss pspc rass
801741 P1 20527 0    Perseus r200 NE 2018:266:19:30:07.706   7.7 ACIS-I NONE  51.3841  42.3412 118.50 117.91  53.07 dss pspc rass
 ----     48961       CAL-ER (CTI06) 2018:266:22:01:29.363   3.0   --    --   17.3303  18.2222 135.62 155.59  37.61   


Previous weeks' short-term schedules.

Last modified: 09/21/18



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