ToO Information
Request ID: 32029
Request Type: NEW
ToO Urgency: WITHIN A WEEK
Proposal ID:
Target Info
Target Name: 4U1901+03
Target No.: 5056
Category: X-RAY PULSARS AND NEUTRON STARS
Coordinates[J2000]: (285.90460, 3.19190)
Exp (ks): 20
Extended: N
Extent Size:
Background Restriction: N
Remarks:
Constraint Details
Monitor: Y
Criteria: The 2013 outburst was observed with RXTE for about 2 weeks during the rise before the peak was reached and than for almost 5 months during decay. Here we propose to monitor the progression of the outburst to the peak and beyond with one snapshot every 1-2 days for the next few weeks (and to revisit exposures and cadence when we know how the outburst develops).
Phase Dependent: N
Epoch:
Period:
Min:
Max:
Remarks:
Specific Time: N
Start:
End:
Remarks:
ToO: Y
Coordinate Observation: Preferred
Observatory: NUSTAR
Description: obs_start obs_end sequenceID Name J2000_RA J2000_Dec 2019:048:02:40:40 2019:048:15:15:00 90501305001 4U_1901p03 285.9046 3.1919 We note that the uncertainty of the source coordinates currently amounts to 1 arcmin. We suggest to start NICER monitoring with the current position until a new position becomes available in order to cover the rise and to coordinate with NuSTAR.
Uninterrupted: N
Justification:
Estimated Count Rate (cts s-1): 400.000
Requester Information
Name: DR. KATJA POTTSCHMIDT
Status
Request Date (UTC): 2019-02-15 00:32:09
Disposition: Accepted
Date:
Reason:
Person:
Status: Complete
Date:
Person:
Misc
Note:
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 |