In-Flight Performance of SPIDER's 280 GHz Receivers - Shaw, EC; Ade, PAR; Akers, S; Amiri, M; Austermann, J; Beall, J; Becker, DT; Benton, SJ; Bergman, AS; Bock, JJ; Bond, JR; Bryan, SA; et al. (SPIE-INT SOC OPTICAL ENGINEERING, 2024)