ToO Information

Request ID: 39366
Request Type: NEW
ToO Urgency: WITHIN A WEEK
Proposal ID: 4104

Target Info

Target Name: ERASST_0456-20
Target No.: 6649
Category: OTHER
Coordinates[J2000]: (74.20750, -20.62990)
Exp (ks): 53
Extended: N

Extent Size:

Background Restriction: N

Remarks:

Constraint Details

Monitor: Y

Criteria: The source will be observed 12 times (3ks exposure each, once every week) with NICER. The monitoring should start no later than MJD59295. For the first observation, we request DDT time to extend the exposure time from 3ks to 20ks (thus in total 53ks). We also request the 20ks exposure observation to be performed within a time period of ~100ks in order to study the short-term variability.

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): 1.500

Requester Information

Name: DR. ZHU LIU

Status

Request Date (UTC): 2021-03-15 12:53:15
Disposition: GO-preapproved

Date: 2022-01-13 22:15:53.541867
Reason:
Person:

Status: Complete

Date: 2022-01-13 22:15:53.541867
Person:

Misc

Note: One 20 ks visit followed by eleven 3ks visits, one each week. (GO prop #4104). First visit should be COMPACT. Start before 22-Mar.

Target Details

Nearest Target No:
Nearest Taget Name:
Separation (arcmin):
Nearby Target (<3.0'):
Referenced Target Catalogue:
Sun Angle: 122.0 deg at 2022:013:20:10:32 (UTC), 112.9 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