ToO Information
Request ID: 43709
Request Type: NEW
ToO Urgency: WITHIN A WEEK
Proposal ID:
Target Info
Target Name: 4U 1820-303
Target No.: 2405
Category: X-RAY BINARIES
Coordinates[J2000]: (275.91904, -30.36128)
Exp (ks): 50
Extended: N
Extent Size:
Background Restriction: N
Remarks:
Constraint Details
Monitor: N
Criteria:
Phase Dependent: N
Epoch:
Period:
Min:
Max:
Remarks:
Specific Time: Y
Start: 2022-10-11 00:00 UTC
End: 2022-10-13 00:00 UTC
Remarks: This is the scheduled observing period of 4U 1820-303 with IXPE
ToO: Y
Coordinate Observation: Y
Observatory: IXPE
Description: IXPE observation of 4U 1820-303 is scheduled with point and stare strategy in the October 11-13 period. IXPE gives the opportunity to observe for the first time the X-ray polarimetric properties of this source polarization degree and angle that jointly with NICER spectral and timing data allow to constrain the different physical parameters of this source.
Uninterrupted: N
Justification:
Estimated Count Rate (cts s-1): 1100.000
Requester Information
Name: DR. ALESSANDRO DI MARCO
Status
Request Date (UTC): 2022-10-04 13:07:27
Disposition: Accepted
Date: 2022-10-05T09:55:10
Reason:
Person: Auto
Status: Complete
Date: 2022-10-24 18:52:06.608602
Person:
Misc
Note:
Target Details
Nearest Target No: 6822
Nearest Taget Name: 4U_1820-303
Separation (arcmin): 0.0000
Nearby Target (<3.0'): 2405[4U_1820-30],6612[4U_1820-30],6613[4U_1820-30],6614[4U_1820-30],6615[4U_1820-30],6822[4U_1820-303],6861[4U_1820-30]
Referenced Target Catalogue: /Home/eud/nicerweb/too/ags/NICER2_Xray_Target_List_V33t.csv.gz
Sun Angle: 67.3 deg at 2022:294:19:07:02 (UTC), 53.4 deg after 2 weeks
Planned Observations
AGS6 Reference: AGS6_STSCH_schedule_20222781100_20222911324_V01.txt.gz,AGS6_STSCH_schedule_20222781800_20222931200_V02.txt.gz,AGS6_STSCH_schedule_20222791400_20222931200_V01.txt.gz,AGS6_STSCH_schedule_20222801300_20222911800_V01.txt.gz,AGS6_STSCH_schedule_20222821900_20222951200_V01.txt.gz,AGS6_STSCH_schedule_20222831300_20222951200_V02.txt.gz,AGS6_STSCH_schedule_20222871500_20222962359_V01.txt.gz,AGS6_STSCH_schedule_20222901500_20223000000_V01.txt.gz,AGS6_STSCH_schedule_20222911200_20223000000_V01.txt.gz,AGS6_STSCH_schedule_20222911900_20223020000_V01.txt.gz,AGS6_STSCH_schedule_20222931400_20223050600_V02.txt.gz,AGS6_STSCH_schedule_20222941700_20223091200_V01.txt.gz,AGS6_STSCH_schedule_20222960100_20223091200_V01.txt.gz
Planned Snapshots:
| Observation Start |
Observation End |
Span |
Mode |
Observation ID |
| (YYYY-DDDTHH:MM:SS) |
(YYYY-DDDTHH:MM:SS) |
(seconds) |
Man/Opt |
|
| 2022-284T01:30:12 |
2022-284T01:34:14 |
242 |
Mandatory |
99999999 |
| 2022-284T03:03:13 |
2022-284T03:09:08 |
355 |
Mandatory |
99999999 |
| 2022-284T04:36:18 |
2022-284T04:46:54 |
636 |
Mandatory |
99999999 |
| 2022-284T06:09:41 |
2022-284T06:19:17 |
576 |
Mandatory |
99999999 |
| 2022-284T07:42:20 |
2022-284T08:02:00 |
1180 |
Mandatory |
99999999 |
| 2022-284T09:15:39 |
2022-284T09:21:37 |
358 |
Mandatory |
99999999 |
| 2022-284T12:26:44 |
2022-284T12:39:44 |
780 |
Mandatory |
99999999 |
| 2022-284T15:28:02 |
2022-284T15:34:00 |
358 |
Mandatory |
99999999 |
| 2022-284T18:34:27 |
2022-284T18:42:00 |
453 |
Mandatory |
99999999 |
| 2022-284T20:07:51 |
2022-284T20:21:02 |
791 |
Mandatory |
99999999 |
| 2022-284T21:40:52 |
2022-284T21:59:55 |
1143 |
Mandatory |
99999999 |
| 2022-284T23:14:17 |
2022-284T23:30:40 |
983 |
Mandatory |
99999999 |
| 2022-285T00:47:07 |
2022-285T01:00:20 |
793 |
Mandatory |
99999999 |
| 2022-285T02:20:26 |
2022-285T02:31:20 |
654 |
Mandatory |
99999999 |
| 2022-285T05:27:20 |
2022-285T05:37:23 |
603 |
Mandatory |
99999999 |
| 2022-285T07:00:40 |
2022-285T07:08:11 |
451 |
Mandatory |
99999999 |
| 2022-285T07:25:53 |
2022-285T07:28:40 |
167 |
Mandatory |
99999999 |
| 2022-285T08:53:37 |
2022-285T09:01:40 |
483 |
Mandatory |
99999999 |
| 2022-285T10:26:58 |
2022-285T10:34:20 |
442 |
Mandatory |
99999999 |
| 2022-285T11:59:59 |
2022-285T12:07:40 |
461 |
Mandatory |
99999999 |
| 2022-285T18:13:22 |
2022-285T18:18:40 |
318 |
Mandatory |
99999999 |
| 2022-285T19:30:00 |
2022-285T19:35:20 |
320 |
Mandatory |
99999999 |
| 2022-285T20:47:54 |
2022-285T21:01:20 |
806 |
Mandatory |
99999999 |
| 2022-286T01:45:00 |
2022-286T02:06:00 |
1260 |
Mandatory |
99999999 |
| 2022-286T03:19:38 |
2022-286T03:39:00 |
1162 |
Mandatory |
99999999 |
| 2022-286T04:52:20 |
2022-286T05:00:20 |
480 |
Mandatory |
99999999 |
| 2022-286T06:26:00 |
2022-286T06:45:00 |
1140 |
Mandatory |
99999999 |
| 2022-286T08:00:00 |
2022-286T08:18:20 |
1100 |
Mandatory |
99999999 |
| 2022-286T09:33:40 |
2022-286T09:51:20 |
1060 |
Mandatory |
99999999 |
| 2022-286T14:14:21 |
2022-286T14:31:00 |
999 |
Mandatory |
99999999 |
| 2022-286T15:47:30 |
2022-286T16:04:00 |
990 |
Mandatory |
99999999 |
| 2022-286T17:20:40 |
2022-286T17:37:00 |
980 |
Mandatory |
99999999 |
| 2022-286T18:53:40 |
2022-286T19:10:00 |
980 |
Mandatory |
99999999 |
| 2022-286T21:59:49 |
2022-286T22:14:40 |
892 |
Mandatory |
99999999 |
| 2022-286T23:32:49 |
2022-286T23:48:00 |
911 |
Mandatory |
99999999 |
Visibility
AGS3 Reference:
Visibility Report:
| Target Name |
Target ID |
Visibility Start |
Visibility End |
Span |
Initial |
Final |
Relative |
|
|
(YYYY-DDDTHH:MM:SS) |
(YYYY-DDDTHH:MM:SS) |
(seconds) |
Interference |
Interference |
Orbits |