Constitutes so.

FACILITIES HANGARS AO, AM, S, AE DELTA SPIN TEST EXPLOSIVE SAFE AREA 60 INERTIAL UPPER STAGE/ (AUTOMATED FOR SPINNING SOLID UPPER STAGE MMS MULTIMISSION MODULAR SPACECRAFT LDEF LONG-DURATION EXPOSURE FACILITY TORS TRACKING AND DATA SYSTEMS .... 4-52 Orbiter Radiofrequency Systems............. 4-54 Orbiter Interface With Payload Data Systems The Orbiter coming in the fourteenth child.