ToO Information
Request ID: 43144
Request Type: NEW
ToO Urgency: WITHIN A WEEK
Proposal ID:
Target Info
Target Name: 4U 1822-371
Target No.: 5275
Category: X-RAY BINARIES
Coordinates[J2000]: (276.44508, -37.10515)
Exp (ks): 6
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: VLT
Description: VLT observations are dynamically scheduled, i.e. it is not known up front when a target will be observed. The VLT observation took place three days ago (May 27th, 2022). We request follow up within the next 2 weeks to ensure the source is at a comparable X-ray flux as during the VLT and NICER observations.
Uninterrupted: N
Justification:
Estimated Count Rate (cts s-1): 65.000
Requester Information
Name: DR. NATHALIE DEGENAAR
Status
Request Date (UTC): 2022-05-30 05:35:16
Disposition: Accepted
Date: 2022-06-08 20:08:29.847066
Reason:
Person:
Status: Complete
Date: 2022-06-08 20:08:29.847066
Person:
Misc
Note:
Target Details
Nearest Target No: 2320
Nearest Taget Name: SAX_J1808.4-3658
Separation (arcmin): 207.5066
Nearby Target (<3.0'):
Referenced Target Catalogue: NICER2_Xray_Target_List_V32b.csv
Sun Angle: 157.7 deg at 2022:159:17:26:53 (UTC), 165.6 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 |