ToO Information

Request ID: 36646
Request Type: NEW
ToO Urgency: WITHIN A WEEK
Proposal ID:

Target Info

Target Name: GRS 1915+105
Target No.: 2610
Category: X-RAY BINARIES
Coordinates[J2000]: (288.79800, 10.94600)
Exp (ks): 10
Extended: N

Extent Size:

Background Restriction: N

Remarks:

Constraint Details

Monitor: Y

Criteria: The target should be observed for a total of nine times with approximately 1-ksec-long pointings. These are arranges as three visits in three subsequent NICER orbits during each VLA window. The MJDs for the VLA windows are: (1) MJD 58977.502 - MJD 58977.669, (2) MJD 58978.500 - MJD 58978.666, and (3) MJD 58979.497 - MJD 58979.663.

Phase Dependent: N

Epoch:
Period:
Min:
Max:
Remarks:

Specific Time: Y

Start: 2020-05-08 12:03 UTC
End: 2020-05-10 15:55 UTC
Remarks: The NICER observations should be made during the following windows to ensure simultaneous observations with the VLA: (1) MJD 58977.502 - MJD 58977.669, (2) MJD 58978.500 - MJD 58978.666, and (3) MJD 58979.497 - MJD 58979.663.

ToO: Y
Coordinate Observation: Y

Observatory: VLA
Description: The coordination is based on the available visibility of GRS 1915+105 with the VLA and the predicted date for the X-ray flaring event.

Uninterrupted: N

Justification:

Estimated Count Rate (cts s-1): 7000.000

Requester Information

Name: DR. KARRI KOLJONEN

Status

Request Date (UTC): 2020-04-29 07:12:35
Disposition: Rejected

Date: 2021-05-24 22:28:36.301854
Reason: Time conflict
Person:

Status: Unable to Execute

Date: 2021-05-24 22:28:36.301854
Person:

Misc

Note: 3 sets of 3 1ks obs, coincident with VLA windows provided.

Target Details

Nearest Target No:
Nearest Taget Name:
Separation (arcmin):
Nearby Target (<3.0'):
Referenced Target Catalogue:
Sun Angle: No Data

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