The target - ACT-CL J0123.5-0428 - is being observed by ACIS-S for 2 hours and 46 minutes. The observation started 16 minutes ago and ends in 3 hours, and is part of the proposal Multiwavelength Observations of the Highest-Redshift Dynamically Relaxed Galaxy Cluster. The target is located in the constellation Cetus and is a Cluster of Galaxies. More information on the target can be found at SIMBAD
. See related observations: 31744, 33446, 33447, 33464, 33465.
This is a joint observation with Hubble Space Telescope (HST) (for 2 hours and 46 minutes) and X-ray Multi Mirror Mission (XMM-Newton) (for 1 day and 3 hours). However, it does not necessarily mean that the observations will be done at the same time!
| Target: | ACT-CL J0123.5-0428 |
| SIMBAD Type: | Cluster of Galaxies |
| Observation Details: | 31738 |
| Sequence Summary: | 802240 |
| Proposal Id: | 27800035 |
| Proposal: | Cycle 27, General Observer, CLUSTERS OF GALAXIES |
| Instrument: | ACIS-S |
| Chips: | ACIS-23567 |
| Data Mode: | VFAINT |
| Date: | 21:00 Monday, 28 September 2026 (UTC) |
| Exposure (approved): | 2 hours and 46 minutes |
| Right Ascension: | 01h 23m 31.3s |
| Declination: | -04° 28' 30.4" |
| Roll: | 68° |
| Constellation: | Cetus |
| Joint with: | Hubble Space Telescope (HST) for 2 hours and 46 minutes |
| Joint with: | X-ray Multi Mirror Mission (XMM-Newton) for 1 day and 3 hours |
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