GCN Circular 22706
A. Y. Lien (GSFC/UMBC), F. E. Marshall (NASA/GSFC), B. Sbarufatti (PSU), and A. Tohuvavohu (PSU) report on behalf of the Swift Team: Further ground analysis shows that the BAT trigger #831888 (Tohuvavohu et al. GCN Circ. 22699) was due to misidentification of 4U 1416-62 (a.k.a. 2S 1417-624 and H 1417-624). The misidentification was caused by a known race condition in the Swift/BAT software, which leads to incorrect spacecraft attitude information to be applied to a known source. 4U 1416-62 is currently undergoing a giant outburst, which is detected by MAXI (Nakajima et al. ATel #11479) and the BAT transient monitor (Krimm et al. ATel #11569). The known X-ray source 1RXS J141805.9-621902, detected in the XRT field of view at a flux level of 1.41+/-0.2 E-12 erg/cm^2/s, is unrelated to BAT the trigger. We apologize for any inconvenience.