ToO Information
Request ID: 41893
Request Type: NEW
ToO Urgency: ONE MONTH OR LONGER
Proposal ID:
Target Info
Target Name: GS 1826-238
Target No.: 2425
Category: X-RAY BINARIES
Coordinates[J2000]: (277.36750, -23.79690)
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: Y
Start: 2022-03-28 00:00 UTC
End: 2022-03-30 00:00 UTC
Remarks: We ask for a coordinated observation with IXPE, that is currently scheduled on march 28 (100 ks exposure).
ToO: Y
Coordinate Observation: Y
Observatory: IXPE
Description: Apart from the known "clocked" bursts, the persistent emission of GS 1826-238 is variable. A joint observation with the 100-ks IXPE exposure would ensure that the source is seen in the same spectral and flux state by the two instruments, maximizing the scientific output.
Uninterrupted: N
Justification:
Estimated Count Rate (cts s-1): 1000.000
Requester Information
Name: DR. FRANCESCO URSINI
Status
Request Date (UTC): 2022-03-08 15:11:15
Disposition: Accepted
Date: 2022-03-15 15:31:40.875268
Reason:
Person:
Status: Complete
Date: 2022-04-01 22:03:24.151958
Person:
Misc
Note:
Target Details
Nearest Target No: 2425
Nearest Taget Name: GS_1826-24
Separation (arcmin): 0.0026
Nearby Target (<3.0'): 2425[GS_1826-24]
Referenced Target Catalogue: NICER2_Xray_Target_List_V31i.csv
Sun Angle: 95.0 deg at 2022:091:20:37:00 (UTC), 108.8 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 |