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.

MAR2519A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
703738 P1 21441 0       2M 1310-1714 2019:083:15:46:43.596  21.0 ACIS-S NONE 197.5702 -17.2686  31.00 158.69  86.04 dss pspc rass
801837 P1 22054 0   SPT-CLJ2259-5301 2019:083:22:15:23.855  22.0 ACIS-I NONE 344.8446 -53.0038 157.59  56.62 104.27 dss pspc rass
703788    21495 0        MRC1226-297 2019:084:04:58:36.832  10.2 ACIS-S NONE 187.1630 -30.0568   7.31 151.31  94.72 dss pspc rass
 ----     48309       CAL-ER (CTI01) 2019:084:08:07:13.198   8.0   --    --  183.7000 -12.2000 359.60 169.42  19.25   
 ----     48308       CAL-ER (PER01) 2019:084:13:00:00.000   3.0   --    --  194.4000  -1.3000  92.42 169.55  92.54   
 ----     48307       CAL-ER (PER05) 2019:084:17:00:00.000   1.0   --    --  174.0000  -5.0000 287.25 169.39 164.30   
 ----     48306       CAL-ER (PER04) 2019:084:17:58:05.571   3.0   --    --   56.0000  -9.0000 260.76  52.76 116.67   
 ----     48305       CAL-ER (CTI06) 2019:084:20:36:53.765   3.0   --    --  315.2183  12.1763  81.96  49.69 178.30   
402048    21215 1 Swift  J1728.9-3613 2019:084:22:32:14.931  30.0 ACIS-S HETG 262.2580 -36.2647 102.91 100.85  76.41 dss pspc rass
201247 P1 21193 0          HD 201796 2019:085:07:21:02.605  17.0 ACIS-S NONE 318.1099 -15.0193 102.00  49.13  59.83 dss pspc rass
703743 P1 21446 0 J032224.64+401119.8 2019:085:12:51:52.633  15.0 ACIS-S NONE  50.5750  40.2000 306.02  56.16 147.30 dss pspc rass
801771    20572 0     SDSSJ1329+2243 2019:085:17:42:45.652  18.3 ACIS-I NONE 202.3677  22.7429 148.01 149.94 114.23 dss pspc rass
703818 P1 21525 0 J140018.94+010454.0 2019:085:23:15:10.428  10.0 ACIS-I NONE 210.0915   1.0657  97.60 154.99  53.61 dss pspc rass
703766 P1 21470 0          UGC 09215 2019:086:02:25:43.428  19.0 ACIS-S NONE 215.8765   1.7062  97.37 149.28   5.82 dss pspc rass
703754    21457 2                M87 2019:086:08:12:51.540  15.5 ACIS-S NONE 187.7305  12.3945 161.99 165.08  67.36 dss pspc rass
 ----     48304       CAL-ER (IAT01) 2019:086:13:03:09.022   0.9   --    --  191.2765  84.9718 174.52  92.54  74.06   
503131    21362 0              N132D 2019:086:14:10:03.711  34.8 ACIS-S NONE  81.2450 -69.6179 255.44  87.30 160.78 dss pspc rass
 ----     48303       CAL-ER (CTI02) 2019:087:00:23:53.061  10.8   --    --  183.7000 -12.5000 345.61 169.86  82.65   
 ----     48302       CAL-ER (PER02) 2019:087:04:17:02.226   1.0   --    --  191.0000   7.3500 155.20 168.89 169.44   
 ----     48301       CAL-ER (PER07) 2019:087:05:04:57.683   8.0   --    --  259.0000  46.0000 104.60  99.94  70.91   
 ----     48300       CAL-ER (PER06) 2019:087:07:47:50.309   3.0   --    --    4.0000  53.0000   3.26  50.22  63.20   
 ----     48299       CAL-ER (CTI04) 2019:087:12:16:18.513   3.0   --    --    4.0000  53.0000   3.51  50.17   0.25   
801753    21845 0                M84 2019:087:14:01:56.513  28.0 ACIS-S NONE 186.2711  12.8972 178.00 164.19 114.08 dss pspc rass
703755    21458 2                M87 2019:087:22:05:59.125  14.0 ACIS-S NONE 187.7313  12.3946 161.99 164.57  15.76 dss pspc rass
402105    21634 1 SDSS_J135225.80+1328 2019:088:02:24:54.458   5.0 ACIS-S NONE 208.1284  13.4658 116.50 153.48  45.29 dss pspc rass
703750    21453 2             Sgr A* 2019:088:04:20:48.924  33.0 ACIS-S NONE 266.4308 -29.0301  93.01 101.03  76.83 dss pspc rass
703706 P1 21408 0       TXS 0128+554 2019:088:14:16:04.709   6.0 ACIS-S NONE  22.7656  55.7482 347.03  53.87 133.93 dss pspc rass
801753    22163 0                M84 2019:088:16:36:11.328  36.0 ACIS-S NONE 186.2714  12.8973 178.00 163.73 110.75 dss pspc rass
703706    22160 0       TXS 0128+554 2019:089:03:16:17.952   7.0 ACIS-S NONE  22.7639  55.7480 347.04  53.57 110.75 dss pspc rass
703751    21454 2             Sgr A* 2019:089:05:58:13.721  33.5 ACIS-S NONE 266.4304 -29.0295  93.01 102.05 133.93 dss pspc rass
 ----     48298       CAL-ER (CTI03) 2019:089:15:47:25.036   8.0   --    --  198.0000  -8.0000  65.80 169.72  67.34   
 ----     48297       CAL-ER (PER03) 2019:089:18:39:16.130   3.0   --    --  191.0000   7.3500 168.36 168.66 103.58   
 ----     48296       CAL-ER (CAL01) 2019:089:20:01:06.610   7.0   --    --  259.0000  46.0000 107.09 100.78  73.54   
 ----     48295       CAL-ER (CAL01) 2019:089:22:29:49.689   3.0   --    --  191.0000   6.0000 167.81 169.94  74.48   
 ----     48294       CAL-ER (CTI05) 2019:090:03:57:18.739   3.0   --    --  197.5500 -10.6000  51.99 169.29 116.95   
703752    21455 2             Sgr A* 2019:090:05:36:20.543  33.0 ACIS-S NONE 266.4304 -29.0295  93.01 103.05  67.88 dss pspc rass
703706    22161 0       TXS 0128+554 2019:090:15:31:36.326   4.0 ACIS-S NONE  22.7664  55.7483 347.03  52.74 133.93 dss pspc rass
801753    22164 0                M84 2019:090:17:18:22.945  33.0 ACIS-S NONE 186.2710  12.8972 178.00 162.67 110.75 dss pspc rass
703706    22162 0       TXS 0128+554 2019:091:03:08:34.587   3.2 ACIS-S NONE  22.7657  55.7467 350.53  52.50 111.12 dss pspc rass
703753    21456 2             Sgr A* 2019:091:04:46:30.882  33.0 ACIS-S NONE 266.4301 -29.0290  93.01 103.99 133.22 dss pspc rass


MAR1819A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
 ----     48330       CAL-ER (PER01) 2019:076:13:48:45.516   8.0   --    --  230.0000  61.0000 122.49 108.15  59.66   
 ----     48329       CAL-ER (PER02) 2019:076:16:32:39.072   1.0   --    --  187.1420   7.4477 122.00 168.05  67.77   
 ----     48328       CAL-ER (PER03) 2019:076:17:34:27.739   1.0   --    --  174.7118  -9.9699 349.19 168.48 133.40   
 ----     48327       CAL-ER (CTI02) 2019:076:22:05:55.273   3.0   --    --   10.0000 -48.0000 197.54  48.04 120.47   
590564    21804 2           E0102-72 2019:076:23:41:28.260  15.0 ACIS-S NONE  16.1121 -72.0090 200.04  71.76  24.35 dss pspc rass
590566    21806 2           E0102-72 2019:077:04:06:43.260  20.0 ACIS-S NONE  15.8807 -72.0350 199.61  71.81   0.22 dss pspc rass
801784    21891 0  CIZA J2242.8+5301 2019:077:10:34:12.140  29.0 ACIS-I NONE 340.6745  53.0944  20.47  56.01 173.92 dss pspc rass
801753    20542 0                M84 2019:077:19:17:39.468  35.0 ACIS-S NONE 186.2755  12.8931 147.00 165.46 110.80 dss pspc rass
703639    20774 0           Mrk 1488 2019:078:05:28:16.468  15.0 ACIS-S NONE 210.3572  51.8715 150.54 122.28  46.71 dss pspc rass
503076    21303 2          SNR 1987A 2019:078:10:33:29.908  20.0  HRC-S LETG  83.8430 -69.2498 262.98  87.69 178.76 dss pspc rass
801844    21566 0  eMACSJ1144.2+2836 2019:078:16:36:48.757  31.4 ACIS-I NONE 176.0454 -28.5942 354.69 150.67  65.16 dss pspc rass
 ----     48326       CAL-ER (CTI03) 2019:079:01:37:37.267   3.0   --    --  174.4007 -14.6735 342.97 164.20  17.86   
 ----     48325       CAL-ER (PER04) 2019:079:03:20:10.649   5.0   --    --  187.1635  14.3120 149.24 163.96 166.75   
 ----     48324       CAL-ER (CAL01) 2019:079:05:11:28.977   8.0   --    --  230.0000  61.0000 125.25 108.16  56.12   
 ----     48323       CAL-ER (CAL01) 2019:079:07:54:50.609   1.0   --    --  187.1780   7.4965 131.75 169.31  65.37   
 ----     48322       CAL-ER (CAL01) 2019:079:09:02:23.948   8.5   --    --  174.2399  -9.4844 332.64 169.00 159.25   
 ----     48321       CAL-ER (CAL01) 2019:079:12:17:07.786   1.0   --    --  188.9203  12.2131 141.02 164.77 169.04   
 ----     48320       CAL-ER (CAL01) 2019:079:13:15:07.226   1.0   --    --  334.3244  43.4075  34.18  49.10 116.21   
 ----     48319       CAL-ER (CTI04) 2019:079:13:52:07.380   1.0   --    --  334.3244  43.4075  34.21  49.10   0.03   
801786    22137 0         Abell 1763 2019:079:15:40:28.380  20.0 ACIS-I NONE 203.7545  40.9910 145.45 133.70  84.60 dss pspc rass
201194    20734 1             TW Hya 2019:079:22:08:10.998  33.0  HRC-I HETG 165.4406 -34.7066 334.99 142.67 174.95 dss pspc rass
503094    21322 2           GW170817 2019:080:07:44:33.478  36.0 ACIS-S NONE 197.4360 -23.4011  29.99 151.22  48.91 dss pspc rass
201194    22154 1             TW Hya 2019:080:18:10:55.957  42.0  HRC-I HETG 165.4408 -34.7066 334.99 142.70  48.91 dss pspc rass
503094    22157 2           GW170817 2019:081:06:17:18.436  38.6 ACIS-S NONE 197.4359 -23.4012  29.99 151.99  48.91 dss pspc rass
 ----     48318       CAL-ER (CTI06) 2019:081:17:17:26.571   3.0   --    --  188.5626 -12.1431  32.14 166.43  14.88   
 ----     48317       CAL-ER (CAL01) 2019:081:18:51:25.017   5.0   --    --  187.1635  14.3120 158.78 164.03 128.13   
 ----     48316       CAL-ER (CAL01) 2019:081:20:42:40.557   8.0   --    --  230.0000  61.0000 128.02 108.14  55.92   
 ----     48315       CAL-ER (CAL01) 2019:081:23:25:04.403   1.0   --    --  186.5496   9.0766 153.17 169.05  61.04   
 ----     48314       CAL-ER (CAL01) 2019:082:00:36:11.194   8.5   --    --  176.0000 -10.0000 328.26 169.15 175.26   
 ----     48313       CAL-ER (CAL01) 2019:082:03:52:41.574   1.0   --    --  188.9203  12.2131 151.05 165.22 177.03   
 ----     48312       CAL-ER (CAL01) 2019:082:04:50:38.921   1.0   --    --  334.3244  43.4075  37.66  49.18 116.05   
 ----     48311       CAL-ER (CAL01) 2019:082:05:34:41.265   1.0   --    --  334.3244  43.4075  37.70  49.18   0.04   
801753    22153 0                M84 2019:082:07:22:19.265  21.3 ACIS-S NONE 186.2745  12.8969 170.00 165.62 117.04 dss pspc rass
 ----     48310       CAL-ER (IAT01) 2019:082:14:10:36.212   0.9   --    --  176.8614 -14.9082 338.74 165.05 169.27   
503076    22155 2          SNR 1987A 2019:082:14:58:55.864  30.0  HRC-S LETG  83.8412 -69.2478 262.98  87.91  77.15 dss pspc rass
503094    22158 2           GW170817 2019:082:23:52:11.168  25.2 ACIS-S NONE 197.4353 -23.4020  29.99 153.44  79.90 dss pspc rass
503076    22156 2          SNR 1987A 2019:083:07:25:26.447  28.0  HRC-S LETG  83.8431 -69.2499 262.98  87.93  79.90 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 03/22/19



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