The target - EP J223759.5+531421 - is being observed by ACIS-S for 5 hours and 33 minutes. The observation started 19 minutes ago and ends in 5 hours, and is part of the proposal Resolving the Environment of the New Magnetar Candidate: Wind Nebula, Dust-Scattering Rings, and Kick Velocity. The target is located in the constellation Lacerta. See related observation: 32459.
This is a time-critical and monitoring observation.
This is an observation from a TOO (target of opportunity) proposal.
| Target: | EP J223759.5+531421 |
| Observation Details: | 32460 |
| Sequence Summary: | 503712 |
| Proposal Id: | 27509114 |
| Proposal: | Cycle 27, Director's Discretionary Time, SN, SNR AND ISOLATED NS |
| Turnaround time: | Immediate |
| Instrument: | ACIS-S |
| Chips: | ACIS-67 |
| Data Mode: | FAINT |
| Date: | 04:02 Friday, 4 September 2026 (UTC) |
| Exposure (approved): | 5 hours and 33 minutes |
| Right Ascension: | 22h 37m 59.5s |
| Declination: | +53° 14' 21.0" |
| Roll: | 184° |
| Constellation: | Lacerta |
| Time critical: | Yes |
| Monitor: | Yes |
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