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)