The target - M82 X-2 - was observed by HRC-I for 1 hour and 23 minutes, ended 28 minutes ago, and is part of the proposal Timing the M82 X-2 pulsar with Chandra and NuSTAR. The target - also called [KCF2005] M82 G - is located in the constellation Ursa Major and is an Ultra-luminous X-ray source. More information on the target can be found at SIMBAD. See related observations: 23460, 23461, 23462, 23463, 23464, 23465, 23466, 23467, 23468, 23469, 26111, 23470.
This was a joint observation with Nuclear Spectroscopic Telescope Array (NuSTAR) (for 22 hours and 13 minutes). However, it does not necessarily mean that the observations were done at the same time! This was a time-critical and monitoring observation.