ToO Information

Request ID: 45051
Request Type: NEW
ToO Urgency: WITHIN A WEEK
Proposal ID: 6189

Target Info

Target Name: 4U 1820-303
Target No.: 7060
Category: X-RAY BINARIES
Coordinates[J2000]: (275.91904, -30.36128)
Exp (ks): 30
Extended: N
Extent Size:
Background Restriction: N
Remarks:

Constraint Details

Monitor: N
Criteria:
Phase Dependent: N
Epoch:
Period:
Min:
Max:
Remarks:
Specific Time: N
Start:
End:
Remarks:
ToO: Y
Coordinate Observation: Y
Observatory: IXPE AND NUSTAR
Description: The observation has to be scheduled to cover the IXPE observation with snapshots at beginning, middle and end of the IXPE observation. Simultaneous NuSTAR ToO has been triggered and approved. IXPE observation will be performed on March 20. Shif of the observation is possible and UTC start/stop time are not yet available, please coordinate the observation with IXPE SOC.
Uninterrupted: N
Justification:
Estimated Count Rate (cts s-1): 1100.000

Requester Information

Name: DR. ALESSANDRO DI MARCO

Status

Request Date (UTC): 2023-02-27 13:14:45
Disposition: GO-preapproved
Date:
Reason:
Person:
Status: Complete
Date: 2023-04-19 16:56:22.848872
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_V35l.csv.gz
Sun Angle: 107.1 deg at 2023:102:20:31:56 (UTC), 120.6 deg after 2 weeks

Planned Observations

AGS6 Reference: AGS6_STSCH_schedule_20230581900_20230731200_V01.txt.gz,AGS6_STSCH_schedule_20230592000_20230720000_V01.txt.gz,AGS6_STSCH_schedule_20230601700_20230751200_V01.txt.gz,AGS6_STSCH_schedule_20230611200_20230731200_V02.txt.gz,AGS6_STSCH_schedule_20230621800_20230751200_V02.txt.gz,AGS6_STSCH_schedule_20230651400_20230771547_V01.txt.gz,AGS6_STSCH_schedule_20230660000_20230771500_V05.txt.gz,AGS6_STSCH_schedule_20230661800_20230771500_V02.txt.gz,AGS6_STSCH_schedule_20230671800_20230780000_V02.txt.gz,AGS6_STSCH_schedule_20230681900_20230780000_V01.txt.gz,AGS6_STSCH_schedule_20230691600_20230780000_V04.txt.gz,AGS6_STSCH_schedule_20230721600_20230871200_V02.txt.gz,AGS6_STSCH_schedule_20230731700_20230881227_V01.txt.gz,AGS6_STSCH_schedule_20230741900_20230891200_V01.txt.gz,AGS6_STSCH_schedule_20230751400_20230891200_V01.txt.gz,AGS6_STSCH_schedule_20230761200_20230891200_V01.txt.gz,AGS6_STSCH_schedule_20230761800_20230891200_V02.txt.gz,AGS6_STSCH_schedule_20230791800_20230910000_V01.txt.gz,AGS6_STSCH_schedule_20230801800_20230910000_V01.txt.gz,AGS6_STSCH_schedule_20230811800_20230961200_V01.txt.gz,AGS6_STSCH_schedule_20230821400_20230961200_V01.txt.gz,AGS6_STSCH_schedule_20230831300_20230961200_V01.txt.gz,AGS6_STSCH_schedule_20230832200_20230961200_V01.txt.gz,AGS6_STSCH_schedule_20230862100_20230982359_V05.txt.gz,AGS6_STSCH_schedule_20230881800_20231031200_V01.txt.gz,AGS6_STSCH_schedule_20230891400_20231031200_V01.txt.gz,AGS6_STSCH_schedule_20230901300_20231031200_V01.txt.gz,AGS6_STSCH_schedule_20230901700_20231051200_V01.txt.gz,AGS6_STSCH_schedule_20230920000_20231031200_V01.txt.gz,AGS6_STSCH_schedule_20230930400_20231031200_V01.txt.gz,AGS6_STSCH_schedule_20230940000_20231040000_V01.txt.gz,AGS6_STSCH_schedule_20230940000_20231040000_V02.txt.gz,AGS6_STSCH_schedule_20230941800_20231050000_V01.txt.gz,AGS6_STSCH_schedule_20230961830_20231070000_V01.txt.gz,AGS6_STSCH_schedule_20231011200_20231121200_V01.txt.gz,AGS6_STSCH_schedule_20231012000_20231151200_V01.txt.gz,AGS6_STSCH_schedule_20231022000_20231171200_V01.txt.gz,AGS6_STSCH_schedule_20231031600_20231151200_V03.txt.gz,AGS6_STSCH_schedule_20231041700_20231191200_V01.txt.gz,AGS6_STSCH_schedule_20231081200_20231181200_V02.txt.gz
Planned Snapshots:

Observation Start Observation End Span Mode Observation ID
(YYYY-DDDTHH:MM:SS) (YYYY-DDDTHH:MM:SS) (seconds) Man/Opt
2023-105T01:15:40 2023-105T01:32:00 980 Mandatory 66890201
2023-105T02:48:40 2023-105T03:04:40 960 Mandatory 66890201
2023-105T04:21:40 2023-105T04:37:40 960 Mandatory 66890201
2023-105T05:54:40 2023-105T06:10:40 960 Mandatory 66890201
2023-105T07:27:40 2023-105T07:43:40 960 Mandatory 66890201
2023-105T09:26:00 2023-105T09:33:00 420 Mandatory 66890201
2023-105T10:34:00 2023-105T10:49:20 920 Mandatory 66890201
2023-105T12:31:36 2023-105T12:47:40 964 Mandatory 66890201
2023-105T14:05:20 2023-105T14:20:20 900 Mandatory 66890201
2023-105T15:38:00 2023-105T15:53:20 920 Mandatory 66890201
2023-105T17:10:40 2023-105T17:26:20 940 Mandatory 66890201
2023-105T18:42:49 2023-105T18:59:00 971 Mandatory 66890201
2023-105T19:52:00 2023-105T20:06:40 880 Mandatory 66890201
2023-105T21:24:40 2023-105T21:40:00 920 Mandatory 66890201
2023-105T22:57:40 2023-105T23:12:40 900 Mandatory 66890201
2023-106T00:30:40 2023-106T00:46:00 920 Mandatory 66890201
2023-106T02:04:00 2023-106T02:19:00 900 Mandatory 66890201
2023-106T03:37:00 2023-106T03:52:00 900 Mandatory 66890201
2023-106T05:10:00 2023-106T05:25:00 900 Mandatory 66890201
2023-106T06:43:00 2023-106T06:58:20 920 Mandatory 66890201
2023-106T06:59:40 2023-106T07:22:20 1360 Mandatory 66890201
2023-106T11:22:00 2023-106T11:55:40 2020 Mandatory 66890201
2023-106T12:55:20 2023-106T13:28:20 1980 Mandatory 66890201
2023-106T14:28:00 2023-106T15:01:20 2000 Mandatory 66890201
2023-106T16:01:00 2023-106T16:34:20 2000 Mandatory 66890201
2023-106T17:34:00 2023-106T18:07:20 2000 Mandatory 66890201
2023-106T19:35:19 2023-106T19:45:20 601 Mandatory 66890201
2023-106T21:08:19 2023-106T21:18:20 601 Mandatory 66890201
2023-106T22:14:23 2023-106T22:18:40 257 Mandatory 66890201
2023-106T22:41:19 2023-106T22:51:00 581 Mandatory 66890201

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