Minimize Missions - O
Mission Name Launch date End date EO/Non-EO
O/OREOS 2010   Non-EO
OceanSat-2 2009   Earth Observation
OCO 2009 2009 (Launch failure) Earth Observation
OCO-2 2014   Earth Observation
Oculus-ASR 2019   Non-EO
Odin 2001   Earth Observation
Ørsted 1999   Earth Observation
OICETS 2005 2009 Non-EO
Okean 1979  2000  Earth Observation
Okean-O 1999 2000  Earth Observation
Okean-O1 1986 2004 Earth Observation
OneWeb 2019   Non-EO
OPAL (Atmospheric) Expected for 2016   Earth Observation
OPAL (Launcher) 2000 2004 Non-EO
OPS-SAT 2019   Earth Observation
OptiSAR Planned for 2019   Earth Observation
OptSat-3000 2017   Earth Observation
OPTOS 2013   Non-EO
OPUSat 2014   Non-EO
Orbital Debris     Non-EO
OrbView-1 1995  2000  Earth Observation
OrbView-2 1997  2010  Earth Observation
OrbView-3 2003 2007  Earth Observation
OrbView-4 2001 2001 (Launch failure)  Earth Observation
Orion 2014   Non-EO
Orion / EM-1 Planned for 2020   Non-EO
Orpheus     Earth Observation
ORS-1 2011   Earth Observation
ORS-3 / STPSat-3 2013   Non-EO
ORS-4 / HawaiiSat-1 2015 2015 (Launch failure) Earth Observation
ORS-5 2017   Non-EO
ORS-6 Scheduled for 2018   Earth Observation
ORS Tech 1 and 2 2013 2015 Non-EO
OSAM-1 Planned for 2024   Non-EO
OSCAR-QUBE 2021   Earth Observation
OSIRIS-REx 2016   Non-EO
OTB-1 2019   Earth Observation
OUFTI-1 2016 2016 Non-EO
Oumuamua     Non-EO

Satellite Missions