Acronyms
O-C
O-C
observed - calculated
OAM
OAM
Oceanic Angular Momentum
OATo
OATo
Osservatorio Astronomico di Torino
OB
OB
Observatoire de Bordeaux
OBP
OBP
Ocean Bottom Pressure
OBS
OBS
observation
Obs.
Obs.
Observatory, Observatoire, Observatório
OBSS
OBSS
Origins Billions Star Survey
OC
OC
Operations Center
OCARS
OCARS
Optical Characteristics of Astrometric Radio Sources
OCN
OCN
ocean [loading]
OCR
OCR
optical character recognition
OCRF
OCRF
Optical Celestial Reference Frame
OGC
OGC
Open Geospatial Consortium
OHIG
OHIG
O'Higgins [station]
OICETS
OICETS
Optical Inter-Orbit Communications Engineering Test Satellite
OMCT
OMCT
Ocean Model for Circulation and Tides
ON/MCT
ON/MCT
Observatório Nacional, Ministério da Ciência e Tecnologia
ONR
ONR
(U.S.) Office of Naval Research
OOC
OOC
IVS Office for Outreach and Communication
OP, OPA
OP, OPA
OPAR
OPAR
Paris Observatory IVS Analysis Center
ORB
ORB
Origin Rate Bias
ORBEX
ORBEX
orbits exchange in SINEX-like format
OS
OS
operating system
OSO
OSTST
OSTST
Ocean Surface Topography Science Team
OSU
OSU
School of Earth Sciences of the Ohio State University
OTF
OTF
Optical Test Facility
OTT
OTT
Onsala Twin [Radio] Telescope
OV
OV
Observatoire Virtuel / Virtual Observatory
OV/UFRJ
OV/UFRJ
