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.

FEB1720B


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     47449       CAL-ER (PER02) 2020:047:11:09:41.877   2.0   --    --    2.0000 -52.0000 225.91  47.48 126.89   
 ----     47448       CAL-ER (PER01) 2020:047:12:45:00.000   3.0   --    --   23.0000  -2.0000 283.98  54.25  69.97   
 ----     47447       CAL-ER (CTI01) 2020:047:18:35:10.957   2.0   --    --  321.0000  35.2000  11.14  48.30  92.75   
503201    23171 1          SN2020bvc 2020:047:20:31:09.786  10.0 ACIS-S NONE 218.5032  40.2229  93.94 114.00  76.64 dss pspc rass
402165    22400 0        SGRB130603B 2020:047:23:44:03.120  20.0 ACIS-S NONE 172.2162  17.0532 103.00 157.74  48.20 dss pspc rass
704041 P1 23167 0 1RXS J180312.7+04512 2020:048:05:54:24.408  10.0 ACIS-S NONE 270.8095   4.8309  73.14  61.23  96.85 dss pspc rass
402165    23160 0        SGRB130603B 2020:048:09:18:05.695  20.0 ACIS-S NONE 172.2162  17.0533 103.00 158.08  96.85 dss pspc rass
703955    22568 0 SDSS J090915.91+0354 2020:048:15:44:43.976  12.0 ACIS-S NONE 137.2963   3.9254 300.00 164.69 170.12 dss pspc rass
201343    23147 1         Betelgeuse 2020:048:19:32:17.532   5.0  HRC-I NONE  88.7792   7.4237 279.75 119.11  54.27 dss pspc rass
201248    21194 0            tau Cet 2020:048:21:25:52.537  60.0  HRC-S NONE  25.9904 -15.8313 273.00  53.76  66.38 dss pspc rass
703955    23161 0 SDSS J090915.91+0354 2020:049:14:46:13.515  30.7 ACIS-S NONE 137.2962   3.9255 300.00 164.09 111.82 dss pspc rass
 ----     47446       CAL-ER (CTI02) 2020:049:23:41:23.591   3.0   --    --  145.0000  12.0000 267.70 173.53  33.10   
 ----     47445       CAL-ER (PER05) 2020:050:02:30:00.000   2.0   --    --   23.0000  -2.0000 283.23  51.73 121.70   
 ----     47444       CAL-ER (PER04) 2020:050:04:00:00.000   3.0   --    --  145.0000  12.0000 267.04 173.35 121.70   
 ----     47443       CAL-ER (PER03) 2020:050:06:00:00.000   2.0   --    --  140.0000  -7.0000 327.42 158.01  62.99   
 ----     47442       CAL-ER (CTI03) 2020:050:10:06:37.574   2.0   --    --  352.0000 -57.0000 206.72  48.02 111.02   
201329    22691 1            Brey 84 2020:050:11:54:58.671  55.0 ACIS-S HETG  84.6160 -69.0818 302.94  87.02  40.42 dss pspc rass
703955    23162 0 SDSS J090915.91+0354 2020:051:03:46:53.725  38.6 ACIS-S NONE 137.2978   3.9243 300.00 163.01  88.88 dss pspc rass
201329    23163 1            Brey 84 2020:051:15:04:41.778  39.0 ACIS-S HETG  84.6210 -69.0830 302.95  87.01  88.88 dss pspc rass
704042 P1 23168 0     PG_1001p054_s2 2020:052:02:29:41.430  10.0 ACIS-S NONE 151.0513   5.2896 335.61 173.79  87.72 dss pspc rass
201297    22333 1           HD 82443 2020:052:06:02:15.034  15.0 ACIS-S NONE 143.1630  26.9907 202.01 161.03 136.77 dss pspc rass
704040 P1 23166 0            IC 5373 2020:052:10:52:29.254  10.0 ACIS-S NONE   0.0941  32.7844 329.01  50.20 111.32 dss pspc rass
 ----     47441       CAL-ER (CTI04) 2020:052:14:22:05.294   3.0   --    --  150.0000  16.0000 217.74 173.39 123.39   
 ----     47440       CAL-ER (PER09) 2020:052:16:30:00.000   3.0   --    --  146.0000  12.0000 261.59 171.86  43.22   
 ----     47439       CAL-ER (PER08) 2020:052:18:30:00.000   3.0   --    --   25.0000  -1.8500 282.21  51.11 120.70   
 ----     47438       CAL-ER (PER07) 2020:052:20:30:00.000   1.0   --    --  146.0000  12.0000 261.25 171.67 120.70   
 ----     47437       CAL-ER (PER06) 2020:052:21:40:00.000   3.0   --    --   25.0000  -2.0000 282.04  50.93 120.74   
 ----     47436       CAL-ER (CTI05) 2020:053:01:03:28.494   2.0   --    --  320.0000  36.0000  19.27  48.54  99.66   
801890    22965 0              A1240 2020:053:02:49:05.527  33.0 ACIS-I NONE 170.9033  43.1063 147.99 144.49  96.11 dss pspc rass
201348 P1 23170 0 HEP G054.038-00.045 2020:053:12:36:29.213  10.0 ACIS-I NONE 292.8834  18.6506  58.52  50.72  98.53 dss pspc rass
801890    23165 0              A1240 2020:053:16:00:32.904  13.0 ACIS-I NONE 170.9026  43.1063 147.99 144.51  98.53 dss pspc rass
201281    22312 2 Eta Carinae deep min 2020:053:20:29:06.697  30.0 ACIS-S NONE 161.2220 -59.6914 351.96 109.85 163.78 dss pspc rass
801835    21553 0   SPT-CLJ2335-5434 2020:054:05:19:35.456  28.0 ACIS-I NONE 353.8614 -54.5552 204.68  46.67  67.41 dss pspc rass
801905 P1 23169 0 RMJ100750.4+003154.7 2020:054:13:49:07.414  10.0 ACIS-I NONE 151.9638   0.5216 337.13 169.66 123.15 dss pspc rass
801835    23159 0   SPT-CLJ2335-5434 2020:054:17:18:39.378  18.0 ACIS-I NONE 353.8628 -54.5543 204.68  46.74 123.15 dss pspc rass
201329    23164 1            Brey 84 2020:054:22:51:29.978  22.1 ACIS-S HETG  84.6205 -69.0828 302.95  87.11  43.02 dss pspc rass
 ----     47435       CAL-ER (CTI06) 2020:055:05:34:52.581   3.0   --    --  152.0000   3.0000 326.05 171.81  87.94   


FEB1020A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
201320    22663 1             70 OPH 2020:041:00:59:54.247   5.0  HRC-I NONE 271.3678   2.4747  69.72  53.81  96.13 dss pspc rass
801877    23060 0              A1240 2020:041:03:00:09.825  20.0 ACIS-I NONE 170.9167  43.1030 133.98 142.85  96.42 dss pspc rass
503085    21312 2          AT2019rwd 2020:041:09:14:51.559  15.0 ACIS-S NONE   2.6684  21.1460 316.01  52.71 116.38 dss pspc rass
801877    23154 0              A1240 2020:041:14:06:13.291  22.0 ACIS-I NONE 170.9160  43.1031 133.98 142.97 116.38 dss pspc rass
704018    22708 0    SDSS J1104+4345 2020:041:20:31:43.291  15.5 ACIS-S NONE 166.0710  43.7465 139.92 145.00   4.43 dss pspc rass
 ----     47468       CAL-ER (CTI01) 2020:042:01:11:41.986   3.0   --    --  145.3000  17.6000 156.51 176.47  31.96   
 ----     47467       CAL-ER (PER02) 2020:042:03:00:00.000   3.0   --    --  258.6000  63.5000  61.78  92.35  84.13   
 ----     47466       CAL-ER (PER05) 2020:042:05:45:00.000   0.1   --    --  146.6000  18.5000 149.54 175.11  82.93   
 ----     47465       CAL-ER (PER08) 2020:042:06:33:47.818   3.0   --    --  144.7000   9.9000   7.78 175.60 142.34   
 ----     47464       CAL-ER (PER01) 2020:042:08:08:51.198   3.0   --    --  140.0000  17.0000 236.01 175.14 133.00   
 ----     47463       CAL-ER (PER03) 2020:042:10:15:00.000   1.0   --    --   15.0000   7.0000 292.99  54.63 121.02   
 ----     47462       CAL-ER (CTI02) 2020:042:11:39:39.096   2.0   --    --  140.0000  17.0000 236.64 174.99 120.98   
503085    23151 2          AT2019rwd 2020:042:13:25:17.157  20.0 ACIS-S NONE   2.6677  21.1463 316.01  51.58 123.39 dss pspc rass
801877    23155 0              A1240 2020:042:19:39:58.891  17.0 ACIS-I NONE 170.9174  43.1027 133.98 143.28 116.38 dss pspc rass
503085    23152 2          AT2019rwd 2020:043:01:04:40.625  15.0 ACIS-S NONE   2.6677  21.1463 316.01  51.14 116.38 dss pspc rass
601489 P1 22512 0 J080707.2+352130.3 2020:043:05:52:17.144  21.0 ACIS-S NONE 121.7869  35.3808 230.24 150.08  99.49 dss pspc rass
 ----     47461       CAL-ER (IAT01) 2020:043:12:26:51.365   0.0   --    --  141.5000 -10.4000 351.04 155.40 130.82   
590580    22808 2           E0102-72 2020:043:13:02:46.564  28.0 ACIS-I NONE  15.8615 -72.0582 235.58  65.25  90.32 dss pspc rass
703911    22523 0          PSO167-13 2020:043:21:25:48.732  43.3 ACIS-S NONE 167.6321 -13.5158  39.00 145.11  93.91 dss pspc rass
590578    22806 2           E0102-72 2020:044:10:03:52.869  18.9 ACIS-S NONE  15.9107 -72.0590 234.68  65.34  94.06 dss pspc rass
 ----     47460       CAL-ER (CTI03) 2020:044:15:58:54.951   1.0   --    --  146.3000  11.0000 357.20 177.50 112.53   
 ----     47459       CAL-ER (PER09) 2020:044:16:46:30.069   1.0   --    --  144.3000  12.8000 288.28 177.79  69.38   
 ----     47458       CAL-ER (PER04) 2020:044:18:30:00.000   3.0   --    --   75.0000  -9.0000 286.77 105.54  72.30   
 ----     47457       CAL-ER (PER06) 2020:044:21:40:00.000   1.0   --    --  143.5000  12.5000 286.42 176.78  71.39   
 ----     47456       CAL-ER (PER07) 2020:044:22:24:55.572   3.0   --    --  144.0000   4.6000 343.26 170.82  57.42   
 ----     47455       CAL-ER (CTI04) 2020:045:02:48:35.056   3.0   --    --  160.8500   3.9300  54.83 163.32  74.49   
402154    22389 1          V4641 Sgr 2020:045:04:34:55.903  45.0 ACIS-S HETG 274.8527 -25.4273  93.56  50.32 113.42 dss pspc rass
 ----     47454       CAL-ER (IAT03) 2020:045:17:46:49.056   0.0   --    --  159.2000  12.4000  84.96 168.58 118.74   
 ----     47453       CAL-ER (IAT04) 2020:045:18:19:23.234   0.0   --    --  156.4292  35.6074 158.15 156.15  75.24   
601485    22508 0 J102106.4+360408.8 2020:045:18:32:04.834  23.0 ACIS-S NONE 155.3057  36.0715 159.98 156.03   1.56 dss pspc rass
503199    23140 2           SN2020oi 2020:046:01:25:28.302  10.0 ACIS-S NONE 185.7394  15.8018  89.24 143.22  65.51 dss pspc rass
 ----     47452       CAL-ER (IAT02) 2020:046:04:53:04.764   0.0   --    --  141.2000  -7.4000 346.00 158.52 114.48   
590579    22807 2           E0102-72 2020:046:05:29:37.262  20.0 ACIS-S NONE  15.9067 -72.0567 232.65  65.47  93.11 dss pspc rass
402154    23158 1          V4641 Sgr 2020:046:11:36:56.780  30.0 ACIS-S HETG 274.8527 -25.4274  93.56  51.60  83.21 dss pspc rass
201306 P1 22351 0    [BGK2006] HV 19 2020:046:20:35:25.969  10.0 ACIS-I NONE 173.8301   8.0150  77.00 154.73 103.44 dss pspc rass
703911    23153 0          PSO167-13 2020:046:23:47:19.257  24.2 ACIS-S NONE 167.6315 -13.5170  39.00 147.74  43.64 dss pspc rass
 ----     47451       CAL-ER (CTI05) 2020:047:06:58:52.482   3.0   --    --  148.0000   8.0000 348.15 175.29  57.24   
 ----     47450       CAL-ER (PER10) 2020:047:08:10:32.098   3.0   --    --  145.0000   8.0000 319.45 173.93  29.27   


Previous weeks' short-term schedules.

Last modified: 02/14/20



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