Page created: Thursday, 02 Oct 2025 22:13:39 UTC
The target - Cas A - was observed by ACIS-S for 33 minutes and 20 seconds, ended 18 minutes ago, and is part of the proposal AO-26 Sep 2025 Calibration Observations of Cas A. The target - also called Cassiopeia A - is located in the constellation Cassiopeia and is a SuperNova Remnant. More information on the target can be found at SIMBAD
. See related observations: 29598, 29599, 29603, 29601, 29600.
This was a time-critical and monitoring observation.
| Target: | Cas A |
| SIMBAD Type: | SuperNova Remnant |
| Observation Details: | 29602 |
| Sequence Summary: | 590778 |
| Proposal Id: | 26500467 |
| Proposal: | Cycle 26, Calibration Observation, SN, SNR AND ISOLATED NS |
| Instrument: | ACIS-S |
| Chips: | ACIS-67 |
| Data Mode: | FAINT |
| Date: | 21:21 Thursday, 2 October 2025 (UTC) |
| Exposure (approved): | 33 minutes and 20 seconds |
| Right Ascension: | 23h 23m 25.8s |
| Declination: | +58° 48' 53.4" |
| Roll: | 202° |
| Constellation: | Cassiopeia |
| Time critical: | Yes |
| Monitor: | Yes |
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