NICER observation list: Target ID 567201

We request 10ks of NICER and 100ks of NuSTAR time to trigger Target of Opportunity (ToO) observations of a new or known black hole transient during the end of the outburst, after the source has entered the low-hard state. We aim to obtain high signal-to-noise data during this fainter phase in order to measure the level of disk truncation using X-ray reflection spectroscopy. We will also provide measurements for the disk inclination, ionization and iron abundance. These observations will provide crucial constraints to support a large-scale data analysis program for these sources.