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Terms for subject Abbreviation (849335 entries)

OAS	orbit adjust system
OAT	orbit and attitude tracking
OATS	orbit and attitude tracking subsystem
OSPF	orbit and synchronisation processing facility
OAMS	orbit attitude and maneuvering system
OCS	orbit control system
OCM	orbit correction maneuver
ODE	orbit data editor
OD	orbit determination
ODVAR	orbit determination and vehicle attitude reference
ODP	orbit determination program
OFUS	orbit frequency utilization simulation
OG	orbit gyroscope
OI	orbit injection
OI	orbit insertion
OIM	orbit insertion maneuver
OIM	orbit insertion module
OIS	orbit insertion system
OMPS	orbit maneuvering propulsion system
OMS	orbit maneuvering system