The target - M 87 - is being observed by ACIS-S for 1 hour and 23 minutes. The observation started 1 hour ago and ends in 21 minutes, and is part of the proposal A Movie Campaign on M87: Chandra, NuSTAR, Hubble, and the EHT. The target is located in the constellation Virgo and is a Brightest galaxy in a Cluster (BCG). The source is so bright in X-rays that only one-eigth of the chip is used for the observation. More information on the target can be found at SIMBAD
. See related observation: 31258.
This is a joint observation with Hubble Space Telescope (HST) (for 1 hour and 6 minutes). However, it does not necessarily mean that the observations will be done at the same time! This is a time-critical observation.
| Target: | M 87 |
| SIMBAD Type: | Brightest galaxy in a Cluster (BCG) |
| Observation Details: | 31257 |
| Sequence Summary: | 705404 |
| Proposal Id: | 27700157 |
| Proposal: | Cycle 27, General Observer, ACTIVE GALAXIES AND QUASARS |
| Instrument: | ACIS-S |
| Chips: | ACIS-67 |
| Sub Array: | Start: 449 Rows: 128 |
| Data Mode: | FAINT |
| Date: | 17:45 Monday, 16 March 2026 (UTC) |
| Exposure (approved): | 1 hour and 23 minutes |
| Right Ascension: | 12h 30m 49.4s |
| Declination: | +12° 23' 28.0" |
| Roll: | 119° |
| Constellation: | Virgo |
| Joint with: | Hubble Space Telescope (HST) for 1 hour and 6 minutes |
| Time critical: | Yes |
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