ToO Information
Request ID: 57073
Request Type: NEW
ToO Urgency: WITHIN A WEEK
Proposal ID:
Target Info
Target Name: GRS 1739-278
Target No.:
Category: X-RAY BINARIES
Coordinates[J2000]: (265.66679, -27.74797)
Exp (ks): 30
Extended: N
Extent Size:
Background Restriction: N
Remarks:
Constraint Details
Monitor: Y
Criteria: 10 3-ks observations scheduled every two days.
Phase Dependent: N
Epoch:
Period:
Min:
Max:
Remarks:
Specific Time: N
Start:
End:
Remarks:
ToO: Y
Coordinate Observation: N
Observatory:
Description:
Uninterrupted: N
Justification:
Estimated Count Rate (cts s-1): 600.000
Requester Information
Name: DR. ZUOBIN ZHANG
Status
Request Date (UTC): 2025-06-19 20:01:45
Disposition: Rejected
Date: 2025-07-14 15:18:06.882773
Reason: NICER pointing anomaly
Person:
Status: Unable to Execute
Date: 2025-07-14 15:18:06.882773
Person:
Misc
Note:
Target Details
Nearest Target No: 5028
Nearest Taget Name: GRS_1739-278
Separation (arcmin): 0.0019
Nearby Target (<3.0'): 5028[GRS_1739-278]
Referenced Target Catalogue: /Home/eud/nicerweb/too/ags/NICER2_Xray_Target_List_V43o.csv.gz
Sun Angle: 175.1 deg at 2025:170:20:02:43 (UTC), 163.8 deg after 2 weeks
Planned Observations
AGS6 Reference:
Planned Snapshots:
| Observation Start |
Observation End |
Span |
Mode |
Observation ID |
| (YYYY-DDDTHH:MM:SS) |
(YYYY-DDDTHH:MM:SS) |
(seconds) |
Man/Opt |
|
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 |