NICER observation list: Target ID 662501

We request monitoring observations of GSN 069 with NICER. GSN 069 is the first source where quasi periodic eruptions have been identified. Its long-term evolution is consistent with a repeating tidal disruption event (TDE). The goals of our NICER program are: (i) to follow the long-term evolution of GSN 069 over the whole NICER's cycle 5 with sufficient accuracy not to miss any exceptional event such as the bright ~150 d long X-ray flare detected in 2020; (ii) to study the properties and nature of the observed short timescale X-ray variability of the quiescent level of GSN 069 on timescales ranging froma few days to months.