The target - NGC 6814 - is being observed by ACIS-S and the High Energy Transmission Grating (HETG) for 8 hours and 3 minutes. The observation started 3 hours ago and ends in 5 hours, and is part of the proposal Spectral-Timing Analysis of NGC 6814. The target is located in the constellation Aquila and is a Seyfert 1 Galaxy. More information on the target can be found at SIMBAD. See related observation: 24961.
This is a X-ray Multi Mirror Mission (XMM-Newton) proposal that was also awarded Chandra time. It does not mean that observations will be done at the same time!