ToO Information

Request ID: 53937
Request Type: NEW
ToO Urgency: WITHIN A WEEK
Proposal ID:

Target Info

Target Name: 1E 1541-5408
Target No.: 1940
Category: MAGNETARS AND ROTATION-POWERED PULSARS
Coordinates[J2000]: (237.72500, -54.30700)
Exp (ks): 10
Extended: N
Extent Size:
Background Restriction: N
Remarks:

Constraint Details

Monitor: Y
Criteria: 2 ks observations every other day for 10 days beginning on the onset of the IXPE observation (March 26) until the end (April 6).
Phase Dependent: N
Epoch:
Period:
Min:
Max:
Remarks:
Specific Time: Y
Start: 2025-03-26 00:00 UTC
End: 2025-04-06 13:46 UTC
Remarks: We would like the observation to occur simultaneously with the approved IXPE GO Cycle 2 observation (Prop No 2219). The 1 Ms IXPE observation is scheduled to occur beginning on March 26 until April 6, 2025.
ToO: Y
Coordinate Observation: Y
Observatory: IXPE
Description: We have been approved for a 1 Ms IXPE Priority C observation (Prop No 2219) from March 26, 00:00:00 UTC to April 6, 2025, 13:46:30 UTC. We requested a 40 ks NuSTAR exposure coinciding with IXPE. Additionally, we will observe with Murriyang Parkes radio telescope via three 1-hr P885 observations (UTC): March 27 (20:00-21:00), April 3 (16:30-17:30), and April 13 (20:30-21:30).
Uninterrupted: N
Justification:
Estimated Count Rate (cts s-1): 3.000

Requester Information

Name: MS. RACHAEL STEWART

Status

Request Date (UTC): 2025-03-24 15:59:02
Disposition: Accepted
Date: 2025-03-24T21:45:10
Reason:
Person: Auto
Status: Complete
Date: 2025-04-21 14:44:59.792697
Person:

Misc

Note:

Target Details

Nearest Target No: 1940
Nearest Taget Name: 1E_1547.0-5408
Separation (arcmin): 0.0000
Nearby Target (<3.0'): 1940[1E_1547.0-5408]
Referenced Target Catalogue: /Home/eud/nicerweb/too/ags/NICER2_Xray_Target_List_V42u.csv.gz
Sun Angle: 130.2 deg at 2025:108:19:53:21 (UTC), 138.8 deg after 2 weeks

Planned Observations

AGS6 Reference: AGS6_STSCH_schedule_20250831500_20250960000_V02.txt.gz,AGS6_STSCH_schedule_20250831500_20250960000_V03.txt.gz,AGS6_STSCH_schedule_20250851500_20251001200_V02.txt.gz,AGS6_STSCH_schedule_20250901800_20251021200_V01.txt.gz,AGS6_STSCH_schedule_20250911800_20251030000_V01.txt.gz,AGS6_STSCH_schedule_20250921900_20251071453_V01.txt.gz,AGS6_STSCH_schedule_20250931300_20251071453_V01.txt.gz,AGS6_STSCH_schedule_20250941800_20251080000_V01.txt.gz,AGS6_STSCH_schedule_20250971400_20251121200_V03.txt.gz,AGS6_STSCH_schedule_20250981700_20251121200_V01.txt.gz,AGS6_STSCH_schedule_20250991900_20251141200_V02.txt.gz,AGS6_STSCH_schedule_20251001700_20251141200_V01.txt.gz,AGS6_STSCH_schedule_20251011900_20251150000_V01.txt.gz,AGS6_STSCH_schedule_20251011900_20251150000_V02.txt.gz,AGS6_STSCH_schedule_20251051800_20251170000_V01.txt.gz,AGS6_STSCH_schedule_20251061400_20251200000_V01.txt.gz,AGS6_STSCH_schedule_20251071300_20251211200_V01.txt.gz,AGS6_STSCH_schedule_20251081800_20251211200_V02.txt.gz
Planned Snapshots:

Observation Start Observation End Span Mode Observation ID
(YYYY-DDDTHH:MM:SS) (YYYY-DDDTHH:MM:SS) (seconds) Man/Opt
2025-085T01:10:39 2025-085T01:16:00 321 Mandatory 99999999
2025-085T04:05:44 2025-085T04:17:40 716 Mandatory 99999999
2025-085T05:38:24 2025-085T05:47:00 516 Mandatory 99999999
2025-085T12:01:42 2025-085T12:07:20 338 Mandatory 99999999
2025-085T15:07:44 2025-085T15:13:00 316 Mandatory 99999999
2025-086T01:46:44 2025-086T01:50:20 216 Mandatory 99999999
2025-086T03:19:44 2025-086T03:23:20 216 Mandatory 99999999
2025-086T06:25:44 2025-086T06:30:40 296 Mandatory 99999999
2025-086T20:22:04 2025-086T20:37:40 936 Mandatory 99999999
2025-087T14:52:20 2025-087T14:54:40 140 Mandatory 99999999
2025-087T16:25:20 2025-087T16:28:20 180 Mandatory 99999999
2025-087T17:58:00 2025-087T18:00:15 135 Mandatory 99999999
2025-087T19:31:00 2025-087T19:33:40 160 Mandatory 99999999
2025-087T21:04:00 2025-087T21:07:20 200 Mandatory 99999999
2025-087T22:36:40 2025-087T22:43:40 420 Mandatory 99999999
2025-090T06:29:24 2025-090T06:40:00 636 Mandatory 99999999
2025-090T08:05:07 2025-090T08:13:00 473 Mandatory 99999999
2025-093T13:35:14 2025-093T13:37:20 126 Mandatory 99999999
2025-093T16:36:52 2025-093T16:43:20 388 Mandatory 99999999
2025-095T01:02:57 2025-095T01:15:00 723 Mandatory 99999999
2025-103T21:13:20 2025-103T21:24:00 640 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