ToO Information
Request ID: 54177
Request Type: NEW
ToO Urgency: WITHIN A WEEK
Proposal ID:
Target Info
Target Name: SCO X-1
Target No.: 1990
Category: X-RAY BINARIES
Coordinates[J2000]: (244.97946, -15.64028)
Exp (ks): 12
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: 2025-04-12 10:00 UTC
End: 2025-04-12 13:30 UTC
Remarks: Our Gemini observations are scheduled for 10:00 to 13:20 on Apr 12th UTC (weather permitting).
ToO: Y
Coordinate Observation: Y
Observatory: GEMINI
Description: We are aiming to characterize optical variability in X-ray binaries. The fast timing capabilities of Gemini 'Alopeke and Zorro instruments will enable us to explore such variabilities on sub-second timescales. Simultaneous coverage with NICER will enable us to directly link accretion-induced X-ray and optical variability.
Uninterrupted: N
Justification:
Estimated Count Rate (cts s-1): 10000.000
Requester Information
Name: DR. ARASH BAHRAMIAN
Status
Request Date (UTC): 2025-04-07 01:32:23
Disposition: Accepted
Date: 2025-04-10T18:20:10
Reason:
Person: Auto
Status: Complete
Date: 2025-04-21 14:48:14.247029
Person:
Misc
Note:
Target Details
Nearest Target No: 7059
Nearest Taget Name: Sco_X-1
Separation (arcmin): 0.0000
Nearby Target (<3.0'): 1990[Sco_X-1],7059[Sco_X-1]
Referenced Target Catalogue: /Home/eud/nicerweb/too/ags/NICER2_Xray_Target_List_V42z.csv.gz
Sun Angle: 142.5 deg at 2025:108:19:53:37 (UTC), 155.8 deg after 2 weeks
Planned Observations
AGS6 Reference: 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 |
|
| 2025-102T10:08:03 |
2025-102T10:17:20 |
557 |
Mandatory |
99999999 |
| 2025-102T11:09:00 |
2025-102T11:50:20 |
2480 |
Mandatory |
99999999 |
| 2025-102T12:42:00 |
2025-102T13:23:20 |
2480 |
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 |