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.

APR0620A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     47326       CAL-ER (IAT01) 2020:097:02:27:22.544   0.0   --    --  198.8771  15.6024 170.36 157.66  32.99   
801838    21557 0  CIZA J0107.7+5408 2020:097:03:07:45.347  34.9 ACIS-I NONE  17.0098  54.0835 358.88  47.65 110.39 dss pspc rass
 ----     47325       CAL-ER (CTI01) 2020:097:13:32:50.253   6.0   --    --  196.8748   3.5434 172.89 169.74 122.47   
 ----     47324       CAL-ER (PER03) 2020:097:15:55:36.978   9.0   --    --  350.0000  49.0000  35.70  47.55 122.75   
 ----     47323       CAL-ER (PER04) 2020:097:19:16:46.481   1.0   --    --   18.9729 -41.8773 184.16  48.71 160.46   
 ----     47322       CAL-ER (PER05) 2020:097:20:15:57.421   3.0   --    --  198.0321 -16.7849  12.17 169.76 121.57   
 ----     47321       CAL-ER (CTI02) 2020:098:00:19:03.153   3.0   --    --  194.0000 -14.0000 344.19 172.55  27.33   
801893    22723 0        PKS 0620-52 2020:098:02:23:49.769  30.0 ACIS-I NONE  95.3431 -52.6979 257.29  88.99  85.70 dss pspc rass
 ----     47320       CAL-ER (IAT02) 2020:098:11:07:35.988   0.0   --    --   50.1646 -33.3325 224.77  51.44  37.44   
801838    23210 0  CIZA J0107.7+5408 2020:098:11:55:13.487  16.0 ACIS-I NONE  17.0099  54.0835 358.88  47.10 142.99 dss pspc rass
901418    21652 0        JWST-DTDF-9 2020:098:16:49:53.487  18.0 ACIS-I NONE 260.6866  65.8434 116.96  93.79  51.52 dss pspc rass
 ----     47319       CAL-ER (IAT12) 2020:098:22:22:08.978   0.9   --    --  197.0045   4.4839 164.02 168.38  75.41   
201311    22356 0          HD 114174 2020:098:22:48:33.778  25.0  HRC-I NONE 197.2325   5.2122 164.00 167.65   0.76 dss pspc rass
901418    23212 0        JWST-DTDF-9 2020:099:06:17:19.125  30.0 ACIS-I NONE 260.6863  65.8435 116.96  93.79  74.65 dss pspc rass
 ----     47318       CAL-ER (IAT03) 2020:099:15:08:02.480   0.0   --    --  202.7794   9.6951 162.78 162.13  68.50   
801884    22655 0   SPT-CLJ1315-2806 2020:099:16:01:10.910  26.5 ACIS-I NONE 198.8171 -28.1454 355.00 159.22 167.81 dss pspc rass
 ----     47317       CAL-ER (IAT13) 2020:100:00:17:33.712   0.0   --    --  200.2765   8.7978 171.53 163.49 176.46   
703919 P1 22531 0    SDSS J1346+5858 2020:100:00:44:37.914  11.4 ACIS-S NONE 206.5484  58.9788 170.64 113.11  50.49 dss pspc rass
 ----     47316       CAL-ER (CTI08) 2020:100:04:22:18.585   3.0   --    --  200.0000   2.1000 168.42 170.09  57.40   
 ----     47315       CAL-ER (CTI03) 2020:100:05:25:43.110   8.0   --    --  201.1077   1.5329 161.58 170.34   6.92   
 ----     47314       CAL-ER (CAL01) 2020:100:08:21:50.595   2.0   --    --  350.0000  49.0000  39.27  47.60 122.81   
 ----     47313       CAL-ER (PER06) 2020:100:09:22:57.210   3.0   --    --   57.0000  50.0000 309.13  53.19  55.25   
 ----     47312       CAL-ER (PER07) 2020:100:10:54:45.207   3.0   --    --   46.2639 -33.1893 218.19  48.82 118.35   
 ----     47311       CAL-ER (PER08) 2020:100:12:25:38.118   3.0   --    --  186.3185 -20.5100 315.96 162.76 114.22   
 ----     47310       CAL-ER (CTI12) 2020:100:15:54:20.769   1.0   --    --   65.2966 -13.0724 248.43  50.98 113.52   
 ----     47309       CAL-ER (CTI04) 2020:100:16:33:02.194   3.0   --    --   72.0000  10.0000 267.73  52.85  30.60   
601445    21648 1      NGC 4472 ULXs 2020:100:19:01:17.695  30.0 ACIS-S NONE 187.4240   7.9323 224.00 160.68 113.99 dss pspc rass
 ----     47308       CAL-ER (CAL01) 2020:101:03:50:11.656   0.0   --    --  202.6869   4.9188 163.82 166.58  60.30   
801839    23211 0          H1821+643 2020:101:04:24:00.233  20.0 ACIS-S NONE 275.5134  64.3375  89.98  88.55  80.82 dss pspc rass
 ----     47307       CAL-ER (CAL01) 2020:101:10:28:29.944   0.0   --    --  207.5189  13.5559 158.62 156.85  70.48   
703777    22928 0          Spiderweb 2020:101:11:17:48.942  30.0 ACIS-S NONE 175.1934 -26.4942 302.00 150.69 150.60 dss pspc rass
 ----     47306       CAL-ER (IAT11) 2020:101:20:26:34.785   0.0   --    --  207.5189  13.5559 159.64 156.85 149.69   
801839    21559 0          H1821+643 2020:101:20:58:08.674  28.0 ACIS-S NONE 275.5116  64.3391  89.98  88.59  70.72 dss pspc rass
 ----     47305       CAL-ER (IAT10) 2020:102:05:18:37.268   0.0   --    --  202.9133   3.7951 166.12 167.49  82.39   
801884    23213 0   SPT-CLJ1315-2806 2020:102:06:12:22.956  23.0 ACIS-I NONE 198.8178 -28.1452 355.00 160.19 170.60 dss pspc rass
503167    23024 0      SNR 0509-67.5 2020:102:13:07:58.985  24.7 ACIS-S NONE  77.3870 -67.4993 236.45  86.05  75.45 dss pspc rass
 ----     47304       CAL-ER (CTI09) 2020:102:20:34:43.649   5.0   --    --  196.0000 -16.0000 329.01 171.41  85.96   
 ----     47303       CAL-ER (PER13) 2020:102:22:26:26.596   1.0   --    --  205.5855 -17.7251  29.08 169.66  57.97   
 ----     47302       CAL-ER (PER10) 2020:102:23:24:57.970   8.0   --    --  350.9229 -34.0664 141.10  51.13 118.60   
 ----     47301       CAL-ER (PER11) 2020:103:02:13:22.628   3.0   --    --  240.2662 -30.5921  67.78 137.12  88.10   
 ----     47300       CAL-ER (PER12) 2020:103:03:26:58.791   8.0   --    --  205.6774 -12.9841  49.26 173.54  36.75   
 ----     47299       CAL-ER (CTI10) 2020:103:06:22:22.403   1.0   --    --  332.6407 -17.8296 115.20  54.53 119.52   
 ----     47298       CAL-ER (CTI11) 2020:103:07:24:24.785   1.0   --    --   18.5940 -42.0887 177.06  50.91  58.55   
801884    23214 0   SPT-CLJ1315-2806 2020:103:10:33:22.904  35.0 ACIS-I NONE 198.8165 -28.1456 355.00 160.56 109.78 dss pspc rass
 ----     47297       CAL-ER (IAT14) 2020:103:21:10:58.708   0.0   --    --  205.4596  13.9295 169.91 156.76 174.44   
703946    22558 1       KIC 11606854 2020:103:21:44:07.864  20.0 ACIS-S NONE 289.7102  49.6119  97.17  84.31  77.86 dss pspc rass
 ----     47296       CAL-ER (CAL01) 2020:104:03:48:27.693   0.0   --    --  211.9916  17.4267 158.21 151.63  69.74   
703777    23215 0          Spiderweb 2020:104:04:37:52.963  20.0 ACIS-S NONE 175.1940 -26.4945 302.00 149.43 151.07 dss pspc rass


MAR3020A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     47340       CAL-ER (PER02) 2020:089:18:54:57.119   3.0   --    --  350.0000 -40.3000 154.39  47.13  69.53   
 ----     47339       CAL-ER (PER01) 2020:089:23:00:00.000   3.0   --    --  192.0000  -9.0000  32.30 173.80 126.87   
 ----     47338       CAL-ER (CAL01) 2020:090:02:00:54.460   2.0   --    --  189.3000  -0.7000 177.00 176.87 145.03   
201227    21173 0            NGC 884 2020:090:03:46:32.460  17.0 ACIS-I NONE  35.4631  57.1279 329.03  57.31 120.70 dss pspc rass
201235    22956 0             Gd 394 2020:090:08:56:36.679  60.0  HRC-S LETG 318.1834  50.0840  60.44  62.89  50.57 dss pspc rass
801867    22634 0           1321+045 2020:091:02:15:11.437  30.0 ACIS-S NONE 201.1017   4.3101 128.50 165.85 103.86 dss pspc rass
801856    21710 0 24P73B NVSS J221736+ 2020:091:11:14:49.344  10.0 ACIS-I NONE 334.3862  59.7180  47.01  61.78 108.59 dss pspc rass
201227    23202 0            NGC 884 2020:091:14:26:46.344  54.1 ACIS-I NONE  35.4642  57.1278 329.03  56.43  39.34 dss pspc rass
 ----     47337       CAL-ER (CTI03) 2020:092:06:11:22.186   2.0   --    --  189.3000  -0.7000 200.43 175.83 119.89   
 ----     47336       CAL-ER (CAL01) 2020:092:08:00:00.000   3.0   --    --  192.0000  -9.0000  15.07 175.49 174.43   
 ----     47335       CAL-ER (CAL01) 2020:092:12:00:00.000   3.0   --    --  350.0000 -40.0000 151.65  48.71 127.00   
 ----     47334       CAL-ER (CAL01) 2020:092:15:00:00.000   3.0   --    --  192.0000  -9.0000  11.82 175.68 127.09   
 ----     47333       CAL-ER (CAL01) 2020:092:17:23:51.887   2.0   --    --  189.1000   2.9000 195.33 172.01 176.36   
201227    23203 0            NGC 884 2020:092:19:16:14.112  16.0 ACIS-I NONE  35.4610  57.1280 329.03  55.65 116.31 dss pspc rass
201298    23012 0 Orion Nebula Cluster 2020:093:00:17:59.201  11.0 ACIS-S HETG  83.8158  -5.3645 251.00  72.95  88.13 dss pspc rass
703777    21482 0          Spiderweb 2020:093:03:58:08.474  35.0 ACIS-S NONE 175.1966 -26.4960 323.70 153.35  95.95 dss pspc rass
201298    23206 0 Orion Nebula Cluster 2020:093:14:18:17.737  18.0 ACIS-S HETG  83.8159  -5.3656 251.00  72.45  95.94 dss pspc rass
703777    22927 0          Spiderweb 2020:093:19:55:07.011  33.0 ACIS-S NONE 175.1979 -26.4962 323.70 153.20  95.95 dss pspc rass
503203    23209 1         J1818-1607 2020:094:05:48:53.159  30.0 ACIS-S NONE 274.5186 -16.1465 111.60  99.23 127.21 dss pspc rass
703777    23205 0          Spiderweb 2020:094:14:52:39.295  24.0 ACIS-S NONE 175.2000 -26.4966 323.70 153.04 127.21 dss pspc rass
 ----     47332       CAL-ER (CTI04) 2020:094:21:54:10.858   2.0   --    --  187.7000  -8.8000 305.00 173.71  30.92   
 ----     47331       CAL-ER (CAL01) 2020:095:00:00:00.000   3.0   --    --  193.6600 -10.7200   4.55 174.93  58.84   
 ----     47330       CAL-ER (CAL01) 2020:095:02:00:00.000   3.0   --    --  349.9000 -40.3000 149.30  50.81 124.98   
 ----     47329       CAL-ER (CAL01) 2020:095:05:00:00.000   3.0   --    --  193.8000 -10.0000   4.55 175.75 125.64   
 ----     47328       CAL-ER (PER03) 2020:095:07:30:00.000   1.0   --    --  350.0000 -40.0000 149.06  50.69 125.93   
 ----     47327       CAL-ER (CAL01) 2020:095:08:56:21.616   2.0   --    --   60.0000  -2.0000 260.13  46.96 105.14   
201270    22300 0    120751.8-043439 2020:095:12:07:19.733  24.5 ACIS-S NONE 181.9560  -4.5552 268.00 168.18 121.67 dss pspc rass
201298    23207 0 Orion Nebula Cluster 2020:095:19:32:53.321  15.0 ACIS-S HETG  83.8158  -5.3647 251.00  70.57  97.77 dss pspc rass
703739    21442 0       2M 1134-2103 2020:096:00:18:39.134  30.0 ACIS-S NONE 173.6457 -21.0439 304.03 155.05  91.19 dss pspc rass
201298    23208 0 Orion Nebula Cluster 2020:096:09:14:24.943  15.0 ACIS-S HETG  83.8158  -5.3651 251.00  70.08  91.19 dss pspc rass
601495    22957 0          H1821+643 2020:096:14:07:59.694  15.0  HRC-S LETG 275.5207  64.3271 101.01  88.34 126.36 dss pspc rass
801867    23204 0           1321+045 2020:096:18:51:23.316  26.0 ACIS-S NONE 201.1033   4.3137 139.00 167.71  80.52 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 04/03/20



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