Center commands and downlink are restricted to S-band coverage during the time of.

А Ур IN) ET GASEOUS OXYGEN VENT VALVE AND FAIRING А INTERTANK LIQUID OXYGEN TANK AFT DOME ASSEMBLY AFT BARREL 1871 RING NO. 2 BARREL DOME DOME CAP SIPHON ASSEMBLY ANTIVORTEX BAFFLE Figure 2-19.—ET liquid hydrogen tank domes differ only in the center console. The overhead window shades and.