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.

SEP2319A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     47872       CAL-ER (IAT01) 2019:266:03:49:16.710   0.0   --    --   18.9643  26.2036 141.59 147.71 119.74   
801879    22650 0  PSZ2G181.06+48.47 2019:266:04:26:32.264  59.1 ACIS-I NONE 144.8754  40.7483  46.81  51.39  96.34 dss pspc rass
 ----     47871       CAL-ER (CTI01) 2019:266:21:33:11.020  10.0   --    --    4.0000  11.0000 160.95 168.52 117.19   
 ----     47870       CAL-ER (PER01) 2019:267:01:02:18.599   4.5   --    --  173.0000  47.0000  10.05  47.61 121.32   
 ----     47869       CAL-ER (PER02) 2019:267:02:59:45.789   3.0   --    --    4.0000  11.0000 161.76 168.64 121.29   
 ----     47868       CAL-ER (CAL01) 2019:267:07:44:28.233   3.0   --    --    4.0000  10.0000 160.73 169.71   1.44   
 ----     47867       CAL-ER (PER04) 2019:267:09:22:21.477   1.0   --    --    4.0972 -12.0026  15.65 167.23 145.74   
503129    21357 0     PSR J1016-5857 2019:267:10:56:37.843  94.0 ACIS-I NONE 154.1317 -58.9532 149.59  62.21 105.00 dss pspc rass
703831    21703 0          CL0152-13 2019:268:13:40:07.520  40.0 ACIS-I NONE  28.1965 -13.9372  62.01 149.93  95.98 dss pspc rass
503131    22740 0              N132D 2019:269:01:17:36.034  20.0 ACIS-S NONE  81.2747 -69.6641  78.01  92.84  68.89 dss pspc rass
703831    22856 0          CL0152-13 2019:269:07:21:44.560  19.5 ACIS-I NONE  28.1966 -13.9361  62.01 150.38  68.89 dss pspc rass
 ----     47866       CAL-ER (PER03) 2019:269:13:15:02.530   5.0   --    --    2.9950 -11.4957   1.52 167.34  59.75   
 ----     47865       CAL-ER (PER06) 2019:269:15:31:18.778   2.0   --    --    4.7663  12.3975 169.72 168.61 168.47   
 ----     47864       CAL-ER (CAL01) 2019:269:16:46:44.470   7.0   --    --  173.0000  47.0000  13.03  48.96 119.68   
 ----     47863       CAL-ER (CAL01) 2019:269:19:25:30.139   2.0   --    --    4.7663  12.3975 170.31 168.69 119.68   
 ----     47862       CAL-ER (CAL01) 2019:269:20:52:09.490   6.0   --    --    2.9950 -11.4958   0.34 167.24 170.20   
 ----     47861       CAL-ER (CAL01) 2019:269:23:25:08.203   1.0   --    --    2.9950 -11.4957 359.95 167.19   0.39   
 ----     47860       CAL-ER (PER05) 2019:270:00:23:45.132   3.0   --    --  167.0000 -48.0000 158.42  48.69 119.02   
801855    21709 0         Abell 1156 2019:270:02:36:06.203  15.0 ACIS-I NONE 166.2790  47.4266  21.89  50.97 151.14 dss pspc rass
 ----     47859       CAL-ER (IAT03) 2019:270:07:38:07.628   0.0   --    --  182.0717 -50.7290 178.38  49.28 164.36   
503162    22435 0         SN 2017hcc 2019:270:08:20:10.443  41.0 ACIS-S NONE   0.9357 -11.4816 350.00 166.83 117.89 dss pspc rass
503131    22858 0              N132D 2019:270:20:16:33.483  20.0 ACIS-S NONE  81.2770 -69.6675  78.02  92.73  78.98 dss pspc rass
703950    22857 0          XLSSC 122 2019:271:02:23:00.448  40.0 ACIS-I NONE  34.4400  -3.7798  78.00 149.08  79.27 dss pspc rass
503131    22859 0              N132D 2019:271:14:02:47.389  19.0 ACIS-S NONE  81.2757 -69.6655  78.02  92.69  79.27 dss pspc rass
703915 P1 22527 0    SDSS J0825+1155 2019:271:19:55:05.713   6.6 ACIS-S NONE 126.2933  11.9040  80.44  59.68  90.62 dss pspc rass
703950    22563 0          XLSSC 122 2019:271:22:21:16.810  20.0 ACIS-I NONE  34.4395  -3.7776  78.00 149.79  93.08 dss pspc rass
 ----     47858       CAL-ER (CTI03) 2019:272:04:13:45.920   3.0   --    --   14.7540  -1.3251  70.16 169.66  20.99   


SEP1619A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
703713    21416 0            P352-15 2019:259:22:19:02.249  20.0 ACIS-S NONE 352.3813 -15.3472 358.99 167.12   9.00 dss pspc rass
503077    21304 2          SNR 1987A 2019:260:04:25:15.833  42.5 ACIS-S HETG  83.8889 -69.2932  94.02  92.41  78.27 dss pspc rass
703713    22850 0            P352-15 2019:260:16:46:29.420  31.8 ACIS-S NONE 352.3821 -15.3469 358.99 166.71  78.27 dss pspc rass
 ----     47884       CAL-ER (IAT01) 2019:261:01:46:36.860   0.6   --    --  353.7000 -17.5000 359.00 164.55   2.52   
503077    22849 2          SNR 1987A 2019:261:02:29:41.766  42.5 ACIS-S HETG  83.8882 -69.2927  94.02  92.37  76.04 dss pspc rass
 ----     47883       CAL-ER (CTI01) 2019:261:14:50:58.775   1.0   --    --  357.6000 -11.7500  11.89 169.96  78.56   
 ----     47882       CAL-ER (PER01) 2019:261:16:15:00.000   1.0   --    --  353.7000   8.1000 190.77 169.82 179.02   
 ----     47881       CAL-ER (PER02) 2019:261:17:30:00.000   3.0   --    --  174.0000  49.2000   2.23  47.33 122.85   
 ----     47880       CAL-ER (CAL01) 2019:261:21:45:00.000   3.0   --    --  353.7000   8.1000 191.85 169.86 122.89   
 ----     47879       CAL-ER (CAL01) 2019:262:01:00:58.757   3.0   --    --  353.7000   8.1000 192.53 169.89   0.69   
201271    22301 0    124055.1+485114 2019:262:04:09:56.757  37.2 ACIS-S NONE 190.1930  48.8510 340.95  48.69 121.24 dss pspc rass
703974    22588 0 J220226.77+150952.38 2019:262:15:09:19.465  28.2 ACIS-S NONE 330.6140  15.1894 238.99 149.51 107.45 dss pspc rass
402069    21237 2       EXO 1846-031 2019:262:23:27:23.341  30.0 ACIS-S HETG 282.3109  -3.0402 269.43 105.65  56.54 dss pspc rass
801883    22654 0   SPT-CLJ2317-3239 2019:263:08:21:11.545  38.9 ACIS-I NONE 349.4508 -32.7015 341.00 147.72  82.37 dss pspc rass
703746    21449 0 J005904.10+010004.2 2019:263:19:50:48.808  10.0 ACIS-S NONE  14.7798   0.9823  98.00 162.61 114.77 dss pspc rass
601490    22513 0 J082527.7+295739.3 2019:263:23:17:09.545  24.0 ACIS-S NONE 126.3676  29.9378  69.14  56.58 108.81 dss pspc rass
 ----     47878       CAL-ER (CAL01) 2019:264:06:25:43.764   3.0   --    --  182.3000  48.0000 354.03  47.26  58.79   
 ----     47877       CAL-ER (CAL01) 2019:264:14:00:00.000   3.0   --    --  356.2000   9.5000 190.90 169.52 122.30   
 ----     47876       CAL-ER (CAL01) 2019:264:16:40:04.951   1.0   --    --  357.5000 -11.0000 355.73 169.71 165.06   
 ----     47875       CAL-ER (CTI02) 2019:264:18:00:00.000   1.0   --    --  175.0000 -46.0000 175.46  46.81 123.01   
801883    22852 0   SPT-CLJ2317-3239 2019:264:19:49:05.312  34.1 ACIS-I NONE 349.4485 -32.7017 341.00 146.90 101.26 dss pspc rass
503131    22853 0              N132D 2019:265:05:46:46.155  20.0 ACIS-S NONE  81.2816 -69.6647  83.18  93.06  63.59 dss pspc rass
 ----     47874       CAL-ER (CAL01) 2019:265:11:52:19.189   0.6   --    --  353.7000 -17.5000 350.00 162.13  75.23   
703713    22851 0            P352-15 2019:265:12:25:17.189  30.2 ACIS-S NONE 352.3797 -15.3438 349.99 163.68   2.53 dss pspc rass
 ----     47873       CAL-ER (CAL01) 2019:265:20:59:10.835   0.6   --    --  353.7000 -17.5000 350.00 161.88   2.53   
503196    22848 0          AT2019osy 2019:265:21:33:50.131  20.0 ACIS-S NONE  13.9319 -27.0962  29.96 149.70  38.27 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 09/20/19



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