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.

JAN1822B


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
704428    26278 0 SDSS J074922.96+2255 2022:018:19:04:28.683  13.0 ACIS-S NONE 117.3533  22.9406 226.00 176.23  77.95 dss pspc rass
 ----     45767       CAL-ER (IAT03) 2022:018:23:11:16.404   0.9   --    --  114.0000  18.0000 292.77 173.24  65.83   
704323    26280 0         Abell 2744 2022:019:00:08:17.762  12.0 ACIS-I NONE   3.5756 -30.3857 274.99  56.94 116.28 dss pspc rass
 ----     45766       CAL-ER (IAT04) 2022:019:04:01:47.381   0.9   --    --   86.0000  -5.0000 307.78 137.34  80.97   
201463    25809 0 SDSS J123045.53+4109 2022:019:05:12:09.088  36.2 ACIS-S NONE 187.7018  41.1417  88.67 120.53 176.30 dss pspc rass
704373    25329 0 SDSSJ101549.00+00202 2022:019:15:46:59.691   9.6 ACIS-S NONE 153.9485   0.3185  49.00 142.38  72.05 dss pspc rass
 ----     45765       CAL-ER (CTI02) 2022:019:18:50:07.232   3.0   --    --  127.5000  18.6000  72.25 174.10  36.76   
 ----     45764       CAL-ER (PER05) 2022:019:22:45:00.000   2.0   --    --  188.8000 -12.4000  64.28 106.38  68.02   
 ----     45763       CAL-ER (PER06) 2022:020:00:00:00.000   2.0   --    --  207.2000  18.8000  72.03 100.48  37.12   
 ----     45762       CAL-ER (PER13) 2022:020:01:17:38.780   1.0   --    --   70.0000  40.0000 261.67 131.80 129.66   
 ----     45761       CAL-ER (PER07) 2022:020:02:01:24.819   3.0   --    --  118.1000  20.7000 262.89 176.45  52.20   
 ----     45760       CAL-ER (PER08) 2022:020:04:19:00.000   1.0   --    --  126.0000  16.0000  41.79 174.30 141.51   
901832    26109 0           GX 340+0 2022:020:05:20:08.380  15.0 ACIS-S HETG 251.4697 -45.6287 104.32  48.40 125.97 dss pspc rass
704281    24798 0       PKS 1136-135 2022:020:10:01:23.670  30.0 ACIS-S NONE 174.7917 -13.8686  57.69 118.11  70.90 dss pspc rass
704232    23820 0 SDSS J083247.64+2302 2022:020:18:54:32.586  14.0 ACIS-S NONE 128.2182  23.0293 117.99 174.02  79.42 dss pspc rass
 ----     45759       CAL-ER (IAT05) 2022:020:23:29:48.664   0.9   --    --  252.5000   5.0000  61.40  55.41 118.96   
901832    26281 0           GX 340+0 2022:021:00:15:30.783  15.0 ACIS-S HETG 251.4699 -45.6293 103.73  49.06  65.33 dss pspc rass
704206    23794 0           NGC 3268 2022:021:04:56:08.539  56.0 ACIS-I NONE 157.5198 -35.3079  36.19 115.73  68.08 dss pspc rass
 ----     45758       CAL-ER (IAT06) 2022:021:21:07:22.117   0.9   --    --  189.0000  45.0000  92.55 121.24 100.77   
704429    25385 0 SDSS J082341.08+2418 2022:021:21:51:38.273   4.0 ACIS-S NONE 125.9438  24.3017 155.21 175.13  58.89 dss pspc rass
704232    26277 0 SDSS J083247.64+2302 2022:021:23:25:35.273   4.0 ACIS-S NONE 128.2165  23.0305 117.99 174.83  36.38 dss pspc rass
601545    25777 0           ngc 4631 2022:022:01:00:24.516  29.3 ACIS-S NONE 190.5386  32.5657 101.00 119.80  56.94 dss pspc rass
 ----     45757       CAL-ER (CTI03) 2022:022:09:38:29.505   3.0   --    --  129.0000  21.0000 105.18 175.39  60.76   
 ----     45756       CAL-ER (PER09) 2022:022:13:00:00.000   1.0   --    --  191.6000 -11.8000  65.02 106.78  76.71   
 ----     45755       CAL-ER (PER10) 2022:022:14:08:33.226   2.5   --    --   70.0000  40.0000 263.01 129.45 163.74   
 ----     45754       CAL-ER (PER11) 2022:022:15:22:44.414   1.0   --    --  350.0000   9.0000 302.97  53.14  76.59   
 ----     45753       CAL-ER (PER12) 2022:022:16:21:33.235   3.0   --    --  118.0000  23.0000 242.55 173.00 119.91   
 ----     45752       CAL-ER (CTI04) 2022:022:19:39:30.835   1.0   --    --  125.9000  16.8000  21.08 176.97 141.38   
503370    26228 0 GLEAM-X J162759.5-52 2022:022:21:13:43.816  20.0 ACIS-S NONE 247.0171 -52.6044  95.02  55.15 122.13 dss pspc rass
801950 P1 25474 0  PSZ2G225.48+29.41 2022:023:03:26:08.195   8.4 ACIS-I NONE 134.4872   3.1504  28.51 161.20 106.08 dss pspc rass
503370    26282 0 GLEAM-X J162759.5-52 2022:023:06:25:11.886  10.0 ACIS-S NONE 247.0208 -52.6041 100.02  55.44 106.03 dss pspc rass
704379 P1 25335 0 SDSSJ110607.47-17311 2022:023:09:43:01.801   4.0 ACIS-S NONE 166.5245 -17.5437  49.36 125.17  70.49 dss pspc rass
801910    24397 0     RXJ1053.7+5735 2022:023:11:29:30.030  27.3 ACIS-S NONE 163.4124  57.6039 137.00 132.84 109.37 dss pspc rass
704326 P1 25282 0 SDSS J173202.96+5958 2022:023:19:31:47.030  20.0 ACIS-S NONE 262.9889  59.9628  33.02  86.65  48.42 dss pspc rass
704429    26279 0 SDSS J082341.08+2418 2022:024:01:41:01.054  15.0 ACIS-S NONE 125.9422  24.3111 181.24 175.05  91.80 dss pspc rass


JAN1822A


Seq #     ObsID Constr.    Target              Start        Time   SI   Grat    RA       Dec    Roll   Pitch   Slew
----------------------------------------------------------------------------------------------------------------------------
704428    26278 0 SDSS J074922.96+2255 2022:018:19:04:28.683  13.0 ACIS-S NONE 117.3533  22.9406 226.00 176.23  77.95 dss pspc rass
 ----     45767       CAL-ER (IAT03) 2022:018:23:11:16.404   0.9   --    --  114.0000  18.0000 292.77 173.24  65.83   
704323    26280 0         Abell 2744 2022:019:00:08:17.762  12.0 ACIS-I NONE   3.5756 -30.3857 274.99  56.94 116.28 dss pspc rass
 ----     45766       CAL-ER (IAT04) 2022:019:04:01:47.381   0.9   --    --   86.0000  -5.0000 307.78 137.34  80.97   
201463    25809 0 SDSS J123045.53+4109 2022:019:05:12:09.088  36.2 ACIS-S NONE 187.7018  41.1417  88.67 120.53 176.30 dss pspc rass
704373    25329 0 SDSSJ101549.00+00202 2022:019:15:46:59.691   9.6 ACIS-S NONE 153.9485   0.3185  49.00 142.38  72.05 dss pspc rass
 ----     45765       CAL-ER (CTI02) 2022:019:18:50:07.232   3.0   --    --  127.5000  18.6000  72.25 174.10  36.76   
 ----     45764       CAL-ER (PER05) 2022:019:22:45:00.000   2.0   --    --  188.8000 -12.4000  64.28 106.38  68.02   
 ----     45763       CAL-ER (PER06) 2022:020:00:00:00.000   2.0   --    --  207.2000  18.8000  72.03 100.48  37.12   
 ----     45762       CAL-ER (PER13) 2022:020:01:17:38.780   1.0   --    --   70.0000  40.0000 261.67 131.80 129.66   
 ----     45761       CAL-ER (PER07) 2022:020:02:01:24.819   3.0   --    --  118.1000  20.7000 262.89 176.45  52.20   
 ----     45760       CAL-ER (PER08) 2022:020:04:19:00.000   1.0   --    --  126.0000  16.0000  41.79 174.30 141.51   
901832    26109 0           GX 340+0 2022:020:05:20:08.380  15.0 ACIS-S HETG 251.4697 -45.6287 104.32  48.40 125.97 dss pspc rass
704281    24798 0       PKS 1136-135 2022:020:10:01:23.670  30.0 ACIS-S NONE 174.7917 -13.8686  57.69 118.11  70.90 dss pspc rass
704232    23820 0 SDSS J083247.64+2302 2022:020:18:54:32.586  14.0 ACIS-S NONE 128.2182  23.0293 117.99 174.02  79.42 dss pspc rass
 ----     45759       CAL-ER (IAT05) 2022:020:23:29:48.664   0.9   --    --  252.5000   5.0000  61.40  55.41 118.96   
901832    26281 0           GX 340+0 2022:021:00:15:30.783  15.0 ACIS-S HETG 251.4699 -45.6293 103.73  49.06  65.33 dss pspc rass
704206    23794 0           NGC 3268 2022:021:04:56:08.539  56.0 ACIS-I NONE 157.5198 -35.3079  36.19 115.73  68.08 dss pspc rass
 ----     45758       CAL-ER (IAT06) 2022:021:21:07:22.117   0.9   --    --  189.0000  45.0000  92.55 121.24 100.77   
704429    25385 0 SDSS J082341.08+2418 2022:021:21:51:38.273   4.0 ACIS-S NONE 125.9438  24.3017 155.21 175.13  58.89 dss pspc rass
704232    26277 0 SDSS J083247.64+2302 2022:021:23:25:35.273   4.0 ACIS-S NONE 128.2165  23.0305 117.99 174.83  36.38 dss pspc rass
601545    25777 0           ngc 4631 2022:022:01:00:24.516  29.3 ACIS-S NONE 190.5386  32.5657 101.00 119.80  56.94 dss pspc rass
 ----     45757       CAL-ER (CTI03) 2022:022:09:38:29.505   3.0   --    --  129.0000  21.0000 105.18 175.39  60.76   
 ----     45756       CAL-ER (PER09) 2022:022:13:00:00.000   1.0   --    --  191.6000 -11.8000  65.02 106.78  76.71   
 ----     45755       CAL-ER (PER10) 2022:022:14:08:33.226   2.5   --    --   70.0000  40.0000 263.01 129.45 163.74   
 ----     45754       CAL-ER (PER11) 2022:022:15:22:44.414   1.0   --    --  350.0000   9.0000 302.97  53.14  76.59   
 ----     45753       CAL-ER (PER12) 2022:022:16:21:33.235   3.0   --    --  118.0000  23.0000 242.55 173.00 119.91   
 ----     45752       CAL-ER (CTI04) 2022:022:19:39:30.835   1.0   --    --  125.9000  16.8000  21.08 176.97 141.38   
503370    26228 0 GLEAM-X J162759.5-52 2022:022:21:13:43.816  20.0 ACIS-S NONE 247.0171 -52.6044  95.02  55.15 122.13 dss pspc rass
801950 P1 25474 0  PSZ2G225.48+29.41 2022:023:03:26:08.195   8.4 ACIS-I NONE 134.4872   3.1504  28.51 161.20 106.08 dss pspc rass
503370    26282 0 GLEAM-X J162759.5-52 2022:023:06:25:11.886  10.0 ACIS-S NONE 247.0208 -52.6041 100.02  55.44 106.03 dss pspc rass
704379 P1 25335 0 SDSSJ110607.47-17311 2022:023:09:43:01.801   4.0 ACIS-S NONE 166.5245 -17.5437  49.36 125.17  70.49 dss pspc rass
801910    24397 0     RXJ1053.7+5735 2022:023:11:29:30.030  27.3 ACIS-S NONE 163.4124  57.6039 137.00 132.84 109.37 dss pspc rass
704326 P1 25282 0 SDSS J173202.96+5958 2022:023:19:31:47.030  20.0 ACIS-S NONE 262.9889  59.9628  33.02  86.65  48.42 dss pspc rass
704429    26279 0 SDSS J082341.08+2418 2022:024:01:41:01.054  15.0 ACIS-S NONE 125.9422  24.3111 181.24 175.05  91.80 dss pspc rass


Previous weeks' short-term schedules.

Last modified: 01/18/22



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