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.

SEP2517B


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
703458    19743 0         W0134-2607 2017:267:22:58:08.267   3.0 ACIS-S NONE  23.4934 -26.1442  41.47 145.83  44.85 dss pspc rass
801750    20536 0          XXL-N0282 2017:268:00:15:25.267  10.0 ACIS-S NONE  33.3616  -4.3545  81.52 147.96  44.07 dss pspc rass
703444    19729 0         W0149+2350 2017:268:03:29:38.521   3.0 ACIS-S NONE  27.4638  23.8285 129.04 146.16  54.24 dss pspc rass
703498    20393 0   CFHQS J0050+3445 2017:268:04:41:31.127  34.0 ACIS-S NONE  12.5539  34.7591 161.31 144.67  30.06 dss pspc rass
502681    19031 0            PS12bli 2017:268:14:48:00.730  20.0 ACIS-S NONE 334.4049   0.6453 275.00 152.14 109.47 dss pspc rass
703442    19693 0 2MASS J00423991+3017 2017:268:21:00:54.069   8.0 ACIS-S NONE  10.6917  30.3015 163.55 149.81 108.25 dss pspc rass
703304    19455 0     SDSS 2232+0012 2017:268:23:55:16.499  17.0 ACIS-S NONE 338.0793   0.2251 282.00 155.44 114.93 dss pspc rass
401882    19713 1       NGC 1313 X-1 2017:269:05:19:32.899  32.0 ACIS-S HETG  49.5797 -66.5091  60.00 104.65 114.48 dss pspc rass
 ----     49759       CAL-ER (CTI01) 2017:269:14:40:40.147   5.5   --    --    2.0000 -24.0000 357.23 154.58  57.38   
 ----     49758       CAL-ER (PER08) 2017:269:16:48:44.136   3.0   --    --  339.0000   4.0000 264.59 155.62  94.05   
 ----     49757       CAL-ER (PER03) 2017:269:23:05:00.000   3.0   --    --  232.0000   5.0000 276.39  48.91 106.53   
 ----     49756       CAL-ER (CTI02) 2017:270:02:31:54.006   3.0   --    --  203.0000 -46.0000 206.74  47.57  79.75   
401931    20204 2     MAXI J1535-571 2017:270:05:28:33.734  30.0 ACIS-S HETG 233.8379 -57.2076 235.71  68.23  22.36 dss pspc rass
703570    20467 0 SDSS J220537.71-0711 2017:270:14:23:51.768  19.0 ACIS-S NONE 331.3916  -7.1716 288.00 146.22  89.10 dss pspc rass
801752    20538 0          XXL-N0356 2017:270:20:27:57.695  10.0 ACIS-S NONE  35.3753  -4.1208  72.00 148.33 143.69 dss pspc rass
703303    19454 0     SDSS 2206+0003 2017:271:00:06:15.851  16.0 ACIS-S NONE 331.6360   0.0775 270.00 147.18 162.61 dss pspc rass
801662    19569 0         Abell 1931 2017:271:05:12:21.522  41.0 ACIS-I NONE 217.9728  44.2673 316.02  55.06 107.68 dss pspc rass
801708    19771 0            G114.78 2017:271:17:13:43.293   5.0 ACIS-I NONE   5.1155  28.6658 179.90 153.57 101.38 dss pspc rass
703454    19739 0         W2201+0226 2017:271:19:12:24.560   3.0 ACIS-S NONE 330.3374   2.4593 270.43 145.22  89.35 dss pspc rass
703379    19531 0            PTF09ge 2017:271:20:40:09.037  34.7 ACIS-S NONE 224.2306  49.6186 314.45  61.80 100.09 dss pspc rass
 ----     49755       CAL-ER (CTI03) 2017:272:06:55:43.087   3.0   --    --    1.0000  21.0000 194.18 160.90  99.86   
 ----     49754       CAL-ER (PER05) 2017:272:12:10:00.000   2.0   --    --  213.0000  39.0000 322.38  48.46 113.09   
 ----     49753       CAL-ER (PER06) 2017:272:13:38:06.977   2.0   --    --  158.0000 -46.0000 142.37  49.81 176.77   
 ----     49752       CAL-ER (PER09) 2017:272:15:45:30.000   1.2   --    --   25.1000 -24.0000  37.74 147.54  98.03   
 ----     49751       CAL-ER (DFC_I) 2017:272:16:14:00.000   0.9   --    --   25.1163 -24.0000  37.73 147.53   0.02   
 ----     49750       CAL-ER (DC_T0) 2017:272:16:33:30.000   0.9   --    --   25.1163 -24.0000  37.71 147.53   0.02   
 ----     49749       CAL-ER (DFC_0) 2017:272:16:57:00.000   0.9   --    --   25.1163 -24.0000  37.68 147.53   0.03   
 ----     49748       CAL-ER (DC_T1) 2017:272:17:16:30.000   0.9   --    --   25.1024 -24.0308  37.60 147.52   0.08   
 ----     49747       CAL-ER (DFC_1) 2017:272:17:40:00.000   0.9   --    --   25.1163 -24.0000  37.63 147.54   0.04   
 ----     49746       CAL-ER (DC_T2) 2017:272:17:59:30.000   0.9   --    --   25.0826 -23.9873  37.56 147.57   0.06   
 ----     49745       CAL-ER (DFC_2) 2017:272:18:23:00.000   0.9   --    --   25.1163 -24.0000  37.57 147.54   0.03   
 ----     49744       CAL-ER (DC_T3) 2017:272:18:42:30.000   0.9   --    --   25.1302 -23.9692  37.60 147.56   0.04   
 ----     49743       CAL-ER (DFC_3) 2017:272:19:06:00.000   0.9   --    --   25.1163 -24.0000  37.52 147.54   0.08   
 ----     49742       CAL-ER (DC_T4) 2017:272:19:25:30.000   0.9   --    --   25.1500 -24.0127  37.53 147.51   0.03   
 ----     49741       CAL-ER (DFC_4) 2017:272:19:49:00.000   0.9   --    --   25.1163 -24.0000  37.46 147.54   0.07   
 ----     49740       CAL-ER (PER10) 2017:272:20:13:00.000   2.0   --    --   25.1000 -24.0000  37.41 147.56   0.05   
401882    20798 0       NGC 1313 X-1 2017:272:21:34:40.031  17.6 ACIS-S HETG  49.5797 -66.5090  60.00 104.26  45.37 dss pspc rass
801709    19772 0            G243.14 2017:273:02:59:17.631  10.0 ACIS-I NONE  29.7971 -34.2015  37.02 136.93  35.03 dss pspc rass
502682    19032 0            PS13byi 2017:273:06:26:01.090  15.0 ACIS-S NONE 333.1673  -0.0683 282.00 146.61 110.51 dss pspc rass
703494    20389 0    SDSS J2310+1855 2017:273:11:03:22.685  18.0 ACIS-S NONE 347.6670  18.9435 231.43 155.49  53.37 dss pspc rass
601283    19326 0            NGC7052 2017:273:16:28:39.685  39.0 ACIS-S NONE 319.6349  26.4688 250.77 129.11  28.10 dss pspc rass
703571    20468 0 SDSS J225240.37+0109 2017:274:03:45:56.685   8.0 ACIS-S NONE 343.1571   1.1847 275.15 155.82  45.13 dss pspc rass
801731    20517 0 ClG J225656+244547 2017:274:06:26:58.520  10.0 ACIS-I NONE 344.1881  24.7952 225.01 148.96  54.89 dss pspc rass
703432    19635 1      SDSS1004+4112 2017:274:09:54:38.832  38.9 ACIS-S NONE 151.1323  41.1918  43.01  55.45 114.77 dss pspc rass
 ----     49739       CAL-ER (CTI05) 2017:274:21:15:17.388   3.0   --    --  137.0000 -17.0000  99.27  51.76  78.05   


SEP1817B


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
703369    19521 0        Centaurus A 2017:260:23:55:17.821  15.0 ACIS-S NONE 201.3793 -43.0008 214.01  50.63 176.03 dss pspc rass
401865    20792 0                M30 2017:261:04:42:09.824  38.5 ACIS-S NONE 325.0725 -23.1679 299.99 143.52  96.15 dss pspc rass
 ----     49776       CAL-ER (CAL01) 2017:261:16:00:13.737   1.0   --    --  227.0000   0.0000 267.81  50.97  97.54   
 ----     49775       CAL-ER (CAL01) 2017:261:17:15:00.000   3.0   --    --  332.0000   0.2000 265.44 155.83 105.01   
 ----     49774       CAL-ER (CAL01) 2017:261:19:00:00.000   3.0   --    --  350.3000  21.8000 194.45 155.85  72.35   
 ----     49773       CAL-ER (CAL01) 2017:261:21:00:00.000   3.0   --    --  206.0000  41.0000 317.81  47.65 109.11   
 ----     49772       CAL-ER (CAL01) 2017:261:23:15:00.000   3.0   --    --  350.3000  21.8000 194.81 155.87 109.09   
 ----     49771       CAL-ER (CTI02) 2017:262:04:10:29.109   3.0   --    --  346.2000 -23.7000 334.35 155.69 142.90   
703369    20794 0        Centaurus A 2017:262:07:19:29.488 108.6 ACIS-S NONE 201.3811 -42.9985 214.01  49.73 105.86 dss pspc rass
401859    18991 0     PSR J2129-0429 2017:263:14:09:18.120  60.1 ACIS-S NONE 322.4263  -4.4650 274.69 144.54 109.40 dss pspc rass
 ----     49770       CAL-ER (CAL01) 2017:264:07:27:55.318   1.0   --    --  227.0000   0.0000 269.10  48.58  95.41   
 ----     49769       CAL-ER (CAL01) 2017:264:09:00:00.000   3.0   --    --  334.2000  -2.5000 273.94 155.66 107.19   
 ----     49768       CAL-ER (CAL01) 2017:264:11:00:00.000   3.0   --    --  350.5000  22.2000 200.03 155.86  76.13   
 ----     49767       CAL-ER (CAL01) 2017:264:13:00:00.000   3.0   --    --  206.0000  41.0000 321.33  47.38 108.76   
 ----     49766       CAL-ER (CAL01) 2017:264:14:45:00.000   1.0   --    --  348.3000  21.3000 206.15 155.88 108.55   
 ----     49765       CAL-ER (CAL01) 2017:264:19:50:45.948   2.0   --    --   15.0000 -18.9000  42.55 155.71 164.48   
502939    20793 2          SNR 1987A 2017:264:21:31:22.425  50.0 ACIS-S HETG  83.8777 -69.2936  84.51  92.20  66.21 dss pspc rass
401865    20795 0                M30 2017:265:11:59:11.505  15.0 ACIS-S NONE 325.0729 -23.1681 299.99 139.47  85.43 dss pspc rass
801790    20633 0     MOO J2206+0906 2017:265:16:37:24.905  48.0 ACIS-I NONE 331.5998   9.0781 253.28 150.61  57.26 dss pspc rass
401865    20796 0                M30 2017:266:06:25:38.302  32.0 ACIS-S NONE 325.0723 -23.1678 299.99 138.72  57.25 dss pspc rass
502939    19289 2          SNR 1987A 2017:266:15:53:27.398  19.5 ACIS-S HETG  83.8759 -69.2920  84.51  92.10  85.43 dss pspc rass
 ----     49764       CAL-ER (CAL01) 2017:266:21:48:29.220   3.0   --    --   12.4000 -21.0000  29.51 155.81  63.97   
 ----     49763       CAL-ER (CAL01) 2017:267:02:10:00.000   3.0   --    --  348.3000  21.3000 212.11 155.74 177.69   
 ----     49762       CAL-ER (CAL01) 2017:267:07:00:00.000   1.0   --    --  206.0000  41.0000 324.96  47.23 108.55   
 ----     49761       CAL-ER (CAL01) 2017:267:08:35:00.000   3.0   --    --  348.3000  21.3000 212.67 155.72 108.55   
 ----     49760       CAL-ER (CAL01) 2017:267:11:31:02.246   3.0   --    --   12.4000 -21.0000  28.25 155.84 176.03   
401882    20637 1       NGC 1313 X-1 2017:267:14:42:44.667  28.0 ACIS-S HETG  49.5705 -66.5081  50.48 104.82  51.64 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 09/23/17



Smithsonian Institute Smithsonian Institute

The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA.   Email:   cxchelp@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2017. All rights reserved.