ToO Information
Request ID: 36582
Request Type: NEW
ToO Urgency: ONE MONTH OR LONGER
Proposal ID:
Target Info
Target Name: C/2019 Y4 (ATLAS)
Target No.:
Category: OTHER
Coordinates[J2000]: (0.00000, 0.00000)
Exp (ks): 30
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: 2020-04-14 00:00 UTC
End: 2020-05-01 00:00 UTC
Remarks: The time window is obtained considering both NICER observability constraints (elongation and expected SNR) and scheduled observations with Swift. As comet ATLAS will approach the Sun during this period, the heliocentric distance will decrease from 1.2 to 0.8 AU. A contemporary increase of the source signal (2x) and a decrease of the average X-ray BG (>2x) suggest a preference for a later date.
ToO: Y
Coordinate Observation: N
Observatory:
Description: ATLAS will be observed during 3 vi sits (57 ksec) with Swift in the period April 14 May 1. A simultaneous NICER observation, possibly close to the May 1 Swift s visit, would be a key point to cross-calibrate and fully interpret the data, considering this would be the first NICER observation of a comet, and also helpful for upcoming observation of two comets in Cycle 2 (accepted proposal #3043).
Uninterrupted: N
Justification:
Estimated Count Rate (cts s-1): 0.100
Requester Information
Name: DR. EMANUELE BONAMENTE
Status
Request Date (UTC): 2020-04-03 19:52:08
Disposition: Accepted
Date:
Reason:
Person:
Status: Complete
Date:
Person:
Misc
Note: Observation of a comet
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 |