ToO Information
Request ID: 40224
Request Type: NEW
ToO Urgency: WITHIN A WEEK
Proposal ID:
Target Info
Target Name: CIR X-1
Target No.: 1910
Category: X-RAY BINARIES
Coordinates[J2000]: (230.17021, -57.16669)
Exp (ks): 10
Extended: N
Extent Size:
Background Restriction: N
Remarks:
Constraint Details
Monitor: Y
Criteria: We will start a daily monitoring Cir X-1 on August 3rd with the MeerKAT radio telescope. Observations will be carried out daily (15 minutes of on-target time). NICER observations will complement the radio observations, and Swift observations requested to cover the X-ray spectrum below 2 keV.
Phase Dependent: N
Epoch:
Period:
Min:
Max:
Remarks:
Specific Time: Y
Start: 2021-08-03 00:00 UTC
End: 2021-09-06 00:00 UTC
Remarks: The MeerKAT radio telescope will monitor daily the target for two orbital cycles (34 days), probing the intermediate time-scale variability of the core jet of this source, as well as of the extended jet structures.
ToO: Y
Coordinate Observation: Y
Observatory: MEERKAT RADIO TELESCOPE (AND SWIFT)
Description: Observations are going to be taken at a central frequency of 1.28 GHz (L-band) across a 0.86 GHz bandwidth (32768 channels), with a 2s dump-time. Observations will consist of 15 min of on-target time, plus calibration overheads. Swift observations will be take every other day over the radio monitoring (500s per snapshot).
Uninterrupted: N
Justification:
Estimated Count Rate (cts s-1): 1200.000
Requester Information
Name: DR. SARA ELISA MOTTA
Status
Request Date (UTC): 2021-07-27 09:44:11
Disposition: Accepted
Date: 2021-09-24 19:04:12.962283
Reason:
Person:
Status: Complete
Date: 2021-09-24 19:04:12.962283
Person:
Misc
Note:
Target Details
Nearest Target No: 6267
Nearest Taget Name: Cir_X-1
Separation (arcmin): 0.0000
Nearby Target (<3.0'): 1910[Cir_X-1],6267[Cir_X-1],6350[Cir_X-1]
Referenced Target Catalogue: NICER2_Xray_Target_List_V27x.csv
Sun Angle: 81.5 deg at 2021:250:14:21:14 (UTC), 70.8 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 |