NICER observation list: Target ID 453302

The highly active, repeating FRBs 180301 and 121102 have shown perplexing polarisation properties in radio band. Detection of emission in X-rays with a measure/limits on the efficiency (Eta) are therefore crucial to establish/confirm if indeed the emission mechanisms are the same as those predicted by polarization angle measurements. We propose to observe the sources each with an exposure of 50ks with NICER during their active phases, following triggers from the FAST radio telescope. Following the trigger, NICER and FAST will observe the sources as simultaneously as possible. We expect our NICER observations to be simultaneous with 20-30 radio bursts from the sources.