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.

NOV1819A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
704017 P1 22633 0          3CR 454.2 2019:321:21:46:37.464  20.0 ACIS-S NONE 343.0073  64.6921 259.85 115.84  26.17 dss pspc rass
704010 P1 22626 0             3CR 91 2019:322:03:44:59.169  19.2 ACIS-S NONE  54.4610  50.7742 177.12 148.30  42.79 dss pspc rass
 ----     47724       CAL-ER (CTI01) 2019:322:09:30:33.447  16.0   --    --   58.0000  25.0000 141.40 172.60  42.12   
 ----     47723       CAL-ER (PER01) 2019:322:14:20:32.309   3.0   --    --   58.0000  46.0000 170.30 152.89  35.59   
 ----     47722       CAL-ER (PER02) 2019:322:16:01:49.338   3.0   --    --   41.5111  -5.9752 335.29 152.25 161.03   
 ----     47721       CAL-ER (PER03) 2019:322:17:29:42.485   2.0   --    --  279.2069 -58.8051 239.82  51.49 100.74   
 ----     47720       CAL-ER (PER04) 2019:322:18:30:12.802   3.0   --    --  291.4927 -18.3152 280.97  54.65  52.52   
 ----     47719       CAL-ER (PER05) 2019:322:20:41:21.317   1.0   --    --   50.6596  19.4503 266.18 177.23 123.13   
 ----     47718       CAL-ER (CTI02) 2019:322:21:52:02.952   1.0   --    --   59.0000  20.0000  90.00 174.89 173.37   
703777    21483 0          Spiderweb 2019:322:23:19:36.486  50.0 ACIS-S NONE 175.2106 -26.5080  84.66  53.92 122.28 dss pspc rass
 ----     47717       CAL-ER (IAT01) 2019:323:13:57:23.959   0.0   --    --  252.6449  28.5115 337.61  51.12 130.31   
402063    21230 1           Maffei 1 2019:323:14:32:43.019  28.0 ACIS-I NONE  39.1715  59.6710 201.78 138.33  87.60 dss pspc rass
291470    21784 2               HZ43 2019:323:22:54:52.665  20.0  HRC-S LETG 199.0831  29.0792  41.50  59.54  89.97 dss pspc rass
291420    21734 2               HZ43 2019:324:04:38:06.865   2.0  HRC-I LETG 199.0834  29.0797  41.50  59.72   0.00 dss pspc rass
 ----     47716       CAL-ER (IAT02) 2019:324:05:49:48.385   0.0   --    --   69.0751  31.8491 130.74 162.41 102.86   
291593    22800 2            HR 1099 2019:324:06:36:40.066  15.0  HRC-I HETG  54.1798   0.5778 357.50 160.95 139.55 dss pspc rass
291594    22801 2            HR 1099 2019:324:10:56:00.666   5.0  HRC-I NONE  54.1794   0.5779 356.96 160.90   0.55 dss pspc rass
291595    22802 2            HR 1099 2019:324:12:30:23.266  15.0  HRC-S LETG  54.1787   0.5777 356.76 160.88   0.20 dss pspc rass
402124 P1 22359 0  4FGL J1910.7-5320 2019:324:17:20:53.679  10.0 ACIS-S NONE 287.7027 -53.3255 247.00  52.03 112.53 dss pspc rass
 ----     47715       CAL-ER (IAT03) 2019:324:20:51:55.871   0.0   --    --  248.5173  26.1975 343.55  47.58 129.91   
402063    23076 1           Maffei 1 2019:324:21:27:57.540  11.4 ACIS-I NONE  39.1715  59.6716 202.98 138.34  90.80 dss pspc rass
 ----     47714       CAL-ER (CTI03) 2019:325:01:01:50.296   2.0   --    --   56.0000  25.0000 178.71 174.75  38.56   
 ----     47713       CAL-ER (PER06) 2019:325:02:23:19.945   3.0   --    --   60.0775  13.1977  30.60 172.33 146.97   
 ----     47712       CAL-ER (PER07) 2019:325:03:56:42.023   3.0   --    --   51.0000  20.0000 268.07 175.28 125.41   
 ----     47711       CAL-ER (PER08) 2019:325:05:29:41.034   6.0   --    --  288.0000  -8.0000 288.95  51.55 123.68   
 ----     47710       CAL-ER (PER09) 2019:325:07:52:40.097   1.0   --    --   51.0000  20.0000 268.53 175.13 123.68   
 ----     47709       CAL-ER (PER10) 2019:325:08:28:51.515   3.0   --    --   48.0000  17.0000 291.10 171.73  22.01   
 ----     47708       CAL-ER (PER11) 2019:325:09:56:48.289   1.0   --    --   60.0775  13.1977  28.41 172.43 101.01   
 ----     47707       CAL-ER (CAL01) 2019:325:10:56:05.374   3.0   --    --  190.4989 -57.6893 118.94  50.41 122.03   
 ----     47706       CAL-ER (PER12) 2019:325:12:19:51.395   3.0   --    --  190.4989 -57.6893 118.87  50.42   0.07   
201212    22920 0         HD 97950 C 2019:325:14:44:06.395  46.0 ACIS-S HETG 168.8116 -61.2806  99.80  61.96  11.52 dss pspc rass
100184 P1 22292 0           HD 20794 2019:326:04:00:53.995  15.0 ACIS-S NONE  49.9514 -43.0772 352.57 116.56  64.56 dss pspc rass
703705    21407 1          AT2019pev 2019:326:08:37:42.808  48.0  HRC-S LETG  67.3318   0.6030  21.00 158.16  50.91 dss pspc rass
201212    23079 0         HD 97950 C 2019:326:22:34:34.811  13.0 ACIS-S HETG 168.8094 -61.2802  98.35  62.34  96.15 dss pspc rass
703705    23077 1          AT2019pev 2019:327:02:48:06.809  35.7  HRC-S LETG  67.3312   0.6023  21.00 158.36  96.15 dss pspc rass
703926 P1 22538 0         ESO 549-50 2019:327:13:10:14.409  10.0 ACIS-S NONE  60.6693 -21.1309   3.08 138.50  28.11 dss pspc rass
 ----     47705       CAL-ER (CTI04) 2019:327:16:21:35.173   6.0   --    --   57.0827  14.7018 345.40 174.18  39.89   
 ----     47704       CAL-ER (PER13) 2019:327:18:44:43.670   6.0   --    --  235.8965 -70.6998 176.52  50.39 124.39   
 ----     47703       CAL-ER (PER14) 2019:327:21:01:43.353   6.0   --    --  289.0000  -9.0000 289.12  49.62  96.73   
 ----     47702       CAL-ER (PER15) 2019:327:23:24:34.886   3.0   --    --   51.0000  20.0000 274.21 172.52 123.12   
 ----     47701       CAL-ER (PER16) 2019:328:00:41:58.248   3.0   --    --   55.0000  25.0000 219.51 174.09  53.50   
 ----     47700       CAL-ER (CTI05) 2019:328:03:24:54.204   3.0   --    --  257.0000  25.0000 337.46  48.63 126.02   
402063    23075 1           Maffei 1 2019:328:06:05:09.251  32.0 ACIS-I NONE  39.1731  59.6725 202.98 138.24  89.98 dss pspc rass
 ----     47699       CAL-ER (IAT04) 2019:328:15:33:54.132   0.0   --    --  235.6232  29.7666   4.88  50.46  89.62   
201212    23080 0         HD 97950 C 2019:328:16:21:58.735  22.0 ACIS-S HETG 168.8084 -61.2809  96.48  62.91 145.02 dss pspc rass
703705    23078 1          AT2019pev 2019:328:23:05:30.625  16.3  HRC-S LETG  67.3311   0.6031  19.31 158.73  96.14 dss pspc rass


NOV1119A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     47740       CAL-ER (PER01) 2019:314:14:48:00.621   0.2   --    --   42.3000  18.9000 236.92 176.72 128.30   
 ----     47739       CAL-ER (PER02) 2019:314:15:26:32.968   0.2   --    --   48.0000  21.1500 146.44 175.16  88.68   
 ----     47738       CAL-ER (PER03) 2019:314:15:58:58.446   3.0   --    --  100.0000  73.0000 119.47 116.25  61.16   
 ----     47737       CAL-ER (PER04) 2019:314:20:45:00.000   3.0   --    --   47.1000  20.0000 150.21 176.74  61.76   
 ----     47736       CAL-ER (CTI01) 2019:314:22:19:37.189   3.0   --    --   47.2000  13.2000  22.60 175.68 127.68   
703758    21461 1            PS16dtm 2019:315:01:19:52.189  10.0 ACIS-S NONE  29.4959  -0.8665 319.50 155.95  68.40 dss pspc rass
703704    21406 1          AT2019pev 2019:315:04:43:36.447 100.0  HRC-S LETG  67.3408   0.5965  50.73 152.97  97.07 dss pspc rass
801828    21546 0     CHIPS0236-6136 2019:316:09:03:36.851  31.3 ACIS-I NONE  39.2090 -61.6358 344.99 100.51  80.28 dss pspc rass
901412    21391 1          AT2019pev 2019:316:18:18:17.100  28.6 ACIS-S NONE  67.3382   0.5966  47.87 153.92  78.77 dss pspc rass
 ----     47735       CAL-ER (CTI02) 2019:317:02:44:10.155   4.0   --    --   47.0000  11.0000 354.40 173.18  59.67   
 ----     47734       CAL-ER (PER05) 2019:317:04:37:47.476   2.5   --    --   50.5000  20.4000 134.85 176.35 141.55   
 ----     47733       CAL-ER (PER06) 2019:317:05:47:19.055   3.0   --    --  104.0000  25.0000  86.15 127.57  55.62   
 ----     47732       CAL-ER (PER07) 2019:317:12:00:00.000   3.0   --    --   54.0000  20.0000 109.74 174.01  46.33   
 ----     47731       CAL-ER (CTI03) 2019:317:13:59:05.025   3.0   --    --  183.0000  14.0000  55.67  54.78 119.62   
201227    21172 0            NGC 884 2019:317:16:39:20.022  26.0 ACIS-I NONE  35.5245  57.1431 199.98 139.66 104.62 dss pspc rass
703722 P1 21425 0 SDSS J163342.33+3911 2019:318:00:25:53.732  24.0 ACIS-S NONE 248.3973  39.1835 338.19  60.15  79.78 dss pspc rass
201227    23070 0            NGC 884 2019:318:07:39:07.447  25.0 ACIS-I NONE  35.5229  57.1423 199.98 139.74  79.78 dss pspc rass
703829    21701 0                M87 2019:318:15:15:05.320   5.0  HRC-I NONE 187.7040  12.3725  53.97  51.11 107.09 dss pspc rass
201225    22889 0           NGC 4755 2019:318:17:16:25.370  48.0 ACIS-I NONE 193.4528 -60.3731 132.77  49.25 101.25 dss pspc rass
201279 P1 22309 0          HD 182572 2019:319:07:21:53.616   9.0  HRC-I NONE 291.2258  11.9554 295.83  67.65 134.87 dss pspc rass
201227    23071 0            NGC 884 2019:319:10:27:09.354  26.1 ACIS-I NONE  35.5226  57.1429 201.64 139.79  88.93 dss pspc rass
 ----     47730       CAL-ER (CTI04) 2019:319:18:07:12.825   5.0   --    --   50.7000  21.0000 173.47 177.47  41.78   
 ----     47729       CAL-ER (PER08) 2019:319:19:59:11.044   3.0   --    --  100.0000  73.0000 124.51 118.91  59.12   
 ----     47728       CAL-ER (PER09) 2019:319:21:17:44.596   3.0   --    --  104.0000  25.0000  86.32 130.23  58.77   
 ----     47727       CAL-ER (PER10) 2019:320:03:00:00.000   3.0   --    --   53.6000  18.0000  77.73 177.25  54.52   
 ----     47726       CAL-ER (CTI05) 2019:320:04:52:31.688   3.0   --    --   54.4000  13.8000  35.04 174.12  42.68   
201226    22891 0           NGC 3766 2019:320:08:00:43.549  90.0 ACIS-I NONE 174.0899 -61.6199 110.94  58.19 116.14 dss pspc rass
 ----     47725       CAL-ER (IAT01) 2019:321:09:40:35.590   0.0   --    --   55.9000   7.2000  17.30 167.69 109.65   
201292    22328 1           HD 20630 2019:321:10:01:50.934  15.0 ACIS-S NONE  49.8541   3.3594 352.23 164.28  26.59 dss pspc rass
100191    22913 0          V1298 Tau 2019:321:14:54:03.337   1.1 ACIS-S NONE  61.3485  20.1411 108.99 171.38 120.18 dss pspc rass
201227    23072 0            NGC 884 2019:321:15:48:00.464  20.0 ACIS-I NONE  35.5198  57.1446 208.48 139.85  90.53 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 11/15/19



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 © 1998-2019. All rights reserved.