The target - 46P/Wirtanen - is being observed by ACIS-S for 33 minutes and 20 seconds. The observation started 7 minutes ago and ends in 26 minutes, and is part of the proposal Close encounter with comet 46P/Wirtanen: X-ray tomography of the coma. The target is located in the constellation Taurus. See related observations: 20275, 21977, 21978, 21979, 21980, 21981, 21982, 21983, 21984, 21986, 21987, 21988, 21989, 21990, 21991, 21992, 21993.
This is a joint observation with Hubble Space Telescope (HST) (for 2 hours and 13 minutes). However, it does not necessarily mean that the observations will be done at the same time! This is a time-critical observation.
| Target: | 46P/Wirtanen |
| Observation Details: | 21985 |
| Sequence Summary: | 100169 |
| Proposal Id: | 19100360 |
| Proposal: | Cycle 19, General Observer, SOLAR SYSTEM |
| Instrument: | ACIS-S |
| Chips: | ACIS-235678 |
| Data Mode: | VFAINT |
| Date: | 10:43 Thursday, 13 December 2018 (UTC) |
| Exposure (approved): | 2.0 ks |
| Right Ascension: | 03h 36m 58.5s |
| Declination: | +10° 23' 49.1" |
| Roll: | 310° |
| Constellation: | Taurus |
| Joint with: | Hubble Space Telescope (HST) for 8.0 ks |
| Time critical: | Yes |
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