The U.S. Space Force's Space Development Agency (SDA) wants companies to submit proposals by Jan. 19 for a four-to-eight satellite constellation to detect and track hypersonic and other advanced missiles of potential U.S. adversaries. The SDA's customary Other Transaction Authority agreement seeks "the design, fabrication and launch" of four to eight satellites with electro-optical/infrared (EO/IR) sensors for the Fire-control On Orbit-support-to-the-war constellation, termed FOO Fighter, or F2, by SDA. "SDA plans to purchase and deploy 8 F2 SVs [space vehicles]…
