Glossary

O

OASC Office of Air and Space Commercialization (DoC)

OCST Office of Commercial Space Transportation (DoT)

ODERACS Orbital Debris Radar Calibration Spheres (payload)

OLMSA Office of Life and Microgravity Sciences and Applications (NASA)

on-orbit In orbit

order of magnitude An amount equal to ten times a given value; thus if some quantity was ten times as great as another quantity, it would be an order of magnitude greater; if one hundred times as great, it would be larger by two orders of magnitude

OSTP Office of Science and Technology Policy (White House)

OTD Optical Transient Detector