// A–Z index
Spacecraft: O
213 spacecraft whose names begin with O. Click a column to sort; type to filter this page.
213 shown
| Spacecraft | Launched | Owner | Country | Mission type | Status |
|---|---|---|---|---|---|
| O/OREOS2010-062C | Nov 20, 2010 | ARC | United States | Biology | In orbit |
| O3B FM102014-083A | Dec 18, 2014 | O3B | United Kingdom | Communications | Renamed |
| O3B FM112014-083B | Dec 18, 2014 | O3B | United Kingdom | Communications | Renamed |
| O3B FM122014-083C | Dec 18, 2014 | O3B | United Kingdom | Communications | Renamed |
| O3B FM132018-024D | Mar 9, 2018 | O3B SES | United Kingdom | Communications | Renamed |
| O3B FM142018-024C | Mar 9, 2018 | O3B SES | United Kingdom | Communications | Renamed |
| O3B FM152018-024A | Mar 9, 2018 | O3B SES | United Kingdom | Communications | Renamed |
| O3B FM162018-024B | Mar 9, 2018 | O3B SES | United Kingdom | Communications | Renamed |
| O3B FM172019-020C | Apr 4, 2019 | O3B SES | United Kingdom | Communications | Renamed |
| O3b FM182019-020D | Apr 4, 2019 | O3B SES | United Kingdom | Communications | Renamed |
| O3B FM192019-020B | Apr 4, 2019 | O3B SES | United Kingdom | Communications | Renamed |
| O3b FM22013-031C | Jun 25, 2013 | O3B | United Kingdom | Communications | Renamed |
| O3B FM202019-020A | Apr 4, 2019 | O3B SES | United Kingdom | Communications | Renamed |
| O3b FM212022-174A | Dec 16, 2022 | O3B SES | United Kingdom | Communications | Renamed |
| O3b FM222022-174B | Dec 16, 2022 | O3B SES | United Kingdom | Communications | Renamed |
| O3b FM232023-059B | Apr 28, 2023 | O3B SES | United Kingdom | Communications | Renamed |
| O3b FM242023-059A | Apr 28, 2023 | O3B SES | United Kingdom | Communications | Renamed |
| O3b FM252023-175A | Nov 12, 2023 | O3B SES | United Kingdom | Communications | Renamed |
| O3b FM272024-244A | Dec 17, 2024 | O3B SES | United Kingdom | Communications | In orbit |
| O3b FM282024-244B | Dec 17, 2024 | O3B SES | United Kingdom | Communications | In orbit |
| O3B FM32014-038A | Jul 10, 2014 | O3B | United Kingdom | Communications | Renamed |
| O3B FM42013-031B | Jun 25, 2013 | O3B | United Kingdom | Communications | Renamed |
| O3B FM52013-031A | Jun 25, 2013 | O3B | United Kingdom | Communications | Renamed |
| O3B FM62014-038C | Jul 10, 2014 | O3B | United Kingdom | Communications | Renamed |
| O3B FM72014-038B | Jul 10, 2014 | O3B | United Kingdom | Communications | Renamed |
| O3B FM82014-038D | Jul 10, 2014 | O3B | United Kingdom | Communications | Renamed |
| O3B FM92014-083D | Dec 18, 2014 | O3B | United Kingdom | Communications | Renamed |
| O3b mPOWER 102025-153B | Jul 22, 2025 | O3B SES | United Kingdom | Communications | In orbit |
| O3b mPOWER 92025-153A | Jul 22, 2025 | O3B SES | United Kingdom | Communications | In orbit |
| O3B PFM2013-031D | Jun 25, 2013 | O3B | United Kingdom | Communications | Renamed |
| OAO 11966-031A | Apr 8, 1966 | GSFC | United States | Astronomy | In orbit |
| OAO 21968-110A | Dec 7, 1968 | GSFC | United States | Astronomy | In orbit |
| OAST Flyer1996-001B | Jan 11, 1996 | GSFC | United States | Technology | Attached to another object |
| Obzor-R 12025-310A | Dec 25, 2025 | Roskosmos | Russia | Radar imaging | In orbit |
| Oceansat-11999-029C | May 26, 1999 | ISRO | India | Optical imaging | In orbit |
| Oceansat-22009-051A | Sep 23, 2009 | ISRO | India | Optical imaging | In orbit |
| Oceansat-32022-158A | Nov 26, 2022 | ISRO | India | Optical imaging | In orbit |
| OCO-22014-035A | Jul 2, 2014 | GSFC | United States | Earth science | In orbit |
| OCS2000-004B | Jan 27, 2000 | USAF SOR | United States | Calibration | Reentered (orbital decay) |
| ODERACS 2A1995-004C | Feb 3, 1995 | NASA JSC | United States | Calibration | Reentered (orbital decay) |
| ODERACS 2B1995-004D | Feb 3, 1995 | NASA JSC | United States | Calibration | Reentered (orbital decay) |
| ODERACS 2C1995-004E | Feb 3, 1995 | NASA JSC | United States | Calibration | Reentered (orbital decay) |
| ODERACS 2D1995-004F | Feb 3, 1995 | NASA JSC | United States | Calibration | Reentered (orbital decay) |
| ODERACS 2E1995-004G | Feb 3, 1995 | NASA JSC | United States | Calibration | Reentered (orbital decay) |
| Odin2001-007A | Feb 20, 2001 | SSC | Sweden | Earth science | Reentered (orbital decay) |
| Odin2025-038D | Feb 27, 2025 | AstroForge | United States | Deep space | Left Earth orbit for deep space |
| Ofeq-11988-087A | Sep 19, 1988 | Maf'at | Israel | Technology | Reentered (orbital decay) |
| Ofeq-102014-019A | Apr 9, 2014 | Maf'at | Israel | Radar imaging | Reentered (orbital decay) |
| Ofeq-112016-056A | Sep 13, 2016 | Maf'at | Israel | Optical imaging | Reentered (orbital decay) |
| Ofeq-132023-044A | Mar 28, 2023 | Maf'at | Israel | Radar imaging | In orbit |
| Ofeq-162020-044A | Jul 6, 2020 | Maf'at | Israel | Optical imaging | In orbit |
| Ofeq-192025-193A | Sep 2, 2025 | Maf'at | Israel | Radar imaging | In orbit |
| Ofeq-21990-027A | Apr 3, 1990 | Maf'at | Israel | Technology | Reentered (orbital decay) |
| Ofeq-31995-018A | Apr 5, 1995 | Maf'at | Israel | Optical imaging | Reentered (orbital decay) |
| Ofeq-52002-025A | May 28, 2002 | Maf'at | Israel | Optical imaging | Reentered (orbital decay) |
| Ofeq-72007-025A | Jun 10, 2007 | Maf'at | Israel | Optical imaging | Reentered (orbital decay) |
| Ofeq-92010-031A | Jun 22, 2010 | Maf'at | Israel | Optical imaging | In orbit |
| OGO 11964-054A | Sep 5, 1964 | GSFC | United States | Space science | Left Earth orbit for deep space |
| OGO 21965-081A | Oct 14, 1965 | GSFC | United States | Space science | Reentered (orbital decay) |
| OGO 31966-049A | Jun 7, 1966 | GSFC | United States | Space science | Reentered (orbital decay) |
| OGO 41967-073A | Jul 28, 1967 | GSFC | United States | Space science | Reentered (orbital decay) |
| OGO 51968-014A | Mar 4, 1968 | GSFC | United States | Space science | Left Earth orbit for deep space |
| OGO 61969-051A | Jun 5, 1969 | GSFC | United States | Space science | Reentered (orbital decay) |
| Ohsumi1970-011A | Feb 11, 1970 | ISAS | Japan | Technology | Reentered attached to another object |
| Ohzora1984-015A | Feb 14, 1984 | ISAS | Japan | Space science | Reentered (orbital decay) |
| OICETS2005-031A | Aug 23, 2005 | JAXA | Japan | Communications | In orbit |
| Okean1988-056A | Jul 5, 1988 | GMS | Soviet Union | Optical imaging | In orbit |
| Okean1991-039A | Jun 4, 1991 | Rosgidromet | Soviet Union | Optical imaging | In orbit |
| Okean1994-066A | Oct 11, 1994 | Rosgidromet | Russia | Optical imaging | In orbit |
| Okean O1999-039A | Jul 17, 1999 | Rosgidromet | Russia | Optical imaging | In orbit |
| Okean-O11990-018A | Feb 28, 1990 | GMS | Soviet Union | Optical imaging | In orbit |
| Okina2007-039B | Sep 14, 2007 | JAXA | Japan | Deep space | Left for deep space attached to another object |
| Olymp-K 12014-058A | Sep 27, 2014 | FSB | Russia | Communications | In orbit |
| Olymp-K 22023-031A | Mar 12, 2023 | FSB | Russia | Communications | In orbit |
| Olympus-11989-053A | Jul 12, 1989 | ESA | European Space Agency | Communications | In orbit |
| Omid2009-004A | Feb 2, 2009 | IRSA | Iran | Technology | Reentered (orbital decay) |
| Omnispace F22001-026A | Jun 19, 2001 | ICO Holdings | United Kingdom | Communications | Renamed |
| OMOTENASHI2022-156D | Nov 16, 2022 | JAXA | Japan | — | Flyby |
| OneWeb-07212023-068R | May 20, 2023 | One Web (NAA) | United Kingdom | Communications | In orbit |
| OOV-Cube2024-128F | Jul 9, 2024 | TUB | Germany | Technology | In orbit |
| Opportunity2003-032A | Jul 8, 2003 | JPL | United States | Deep space | Left for deep space attached to another object |
| OPS 07211983-060A | Jun 20, 1983 | NRO | United States | Optical imaging | Deorbited |
| OPS 07571969-013A | Feb 9, 1969 | SAMSO | United States | Communications | In orbit |
| OPS 08551966-099A | Nov 3, 1966 | USAF SSD | United States | Human spaceflight | Reentered attached to another object |
| OPS 14391966-009A | Feb 9, 1966 | NRO | United States | Signals intelligence | Reentered attached to another object |
| OPS 15841966-118A | Dec 29, 1966 | NRO | United States | Signals intelligence | Reentered attached to another object |
| OPS 37621964-087A | Dec 21, 1964 | NRO | United States | Radar imaging | Reentered (orbital decay) |
| OPS 4467A1964-031A | Jun 18, 1964 | NRO | United States | Meteorology | In orbit |
| OPS 56421982-041A | May 11, 1982 | NRO | United States | Optical imaging | Deorbited |
| OPS 68741966-083B | Sep 16, 1966 | NRO | United States | Signals intelligence | Reentered (orbital decay) |
| OPS 89681966-113A | Dec 14, 1966 | NRO | United States | Optical imaging | Reentered attached to another object |
| OPS-SAT2019-092F | Dec 18, 2019 | ESA | European Space Agency | Technology | Reentered (orbital decay) |
| OptiSat2026-067BJ | Mar 30, 2026 | ONERA | France | Technology | In orbit |
| OPTOS2013-066E | Nov 21, 2013 | INTA | Spain | Technology | In orbit |
| OPTSAT-30002017-044A | Aug 2, 2017 | M.d. Difesa | Italy | Optical imaging | In orbit |
| Optus 102014-054A | Sep 11, 2014 | SingTel Optus | Australia | Communications | In orbit |
| Optus 1C2003-028B | Jun 11, 2003 | SingTel Optus | Australia | Communications | In orbit |
| OPTUS B31994-055A | Aug 27, 1994 | Optus | Australia | Communications | In orbit |
| OPTUS D12006-043B | Oct 13, 2006 | SingTel Optus | Australia | Communications | In orbit |
| Optus D22007-044A | Oct 5, 2007 | SingTel Optus | Australia | Communications | In orbit |
| Optus D32009-044B | Aug 21, 2009 | SingTel Optus | Australia | Communications | In orbit |
| Optus-X2024-212A | Nov 17, 2024 | SingTel Optus | Australia | Communications | In orbit |
| OPUSat2014-009D | Feb 27, 2014 | Osaka Pref. U. | Japan | Technology | Reentered (orbital decay) |
| OPUSAT-II1998-067SG | Feb 20, 2021 | Osaka Pref. U. | Japan | Technology | Reentered (orbital decay) |
| Orbcomm A11997-084F | Dec 23, 1997 | Orbcomm | United States | Communications | In orbit |
| Orbcomm A21997-084G | Dec 23, 1997 | Orbcomm | United States | Communications | In orbit |
| Orbcomm A31997-084H | Dec 23, 1997 | Orbcomm | United States | Communications | In orbit |
| Orbcomm A41997-084A | Dec 23, 1997 | Orbcomm | United States | Communications | In orbit |
| Orbcomm A51997-084E | Dec 23, 1997 | Orbcomm | United States | Communications | In orbit |
| Orbcomm A61997-084B | Dec 23, 1997 | Orbcomm | United States | Communications | In orbit |
| Orbcomm A71997-084C | Dec 23, 1997 | Orbcomm | United States | Communications | In orbit |
| Orbcomm A81997-084D | Dec 23, 1997 | Orbcomm | United States | Communications | In orbit |
| Orbcomm CDS-11993-009A | Feb 9, 1993 | Orbcomm | United States | Communications | In orbit |
| Orbcomm CDS-21993-026B | Apr 25, 1993 | Orbcomm | United States | Technology | In orbit, attached to another object |
| Orbcomm F11995-017A | Apr 3, 1995 | Orbcomm | United States | Communications | In orbit |
| Orbcomm F21995-017B | Apr 3, 1995 | Orbcomm | United States | Communications | In orbit |
| Orbcomm G11998-007B | Feb 10, 1998 | Orbcomm | United States | Communications | In orbit |
| Orbcomm G21998-007C | Feb 10, 1998 | Orbcomm | United States | Communications | In orbit |
| Orbcomm-OG2 12012-054B | Oct 8, 2012 | Orbcomm | United States | Communications | Reentered (orbital decay) |
| Orbcomm-X1991-050C | Jul 17, 1991 | Orbcomm | United States | Communications | In orbit |
| ORBICRAFT-ZORKIY2021-022AE | Mar 22, 2021 | Sputniks | Russia | Optical imaging | Reentered (orbital decay) |
| ORBIS LOW1964-075A | Nov 18, 1964 | NRO | United States | Optical imaging | Reentered attached to another object |
| Orbit Guard 22025-038 | Feb 27, 2025 | Infinite Orbits | France | — | Escaped to another body, attached |
| Orbital Reflector2018-099P | Dec 3, 2018 | Nevada Mus Art | United States | Technology | In orbit |
| Orbiting Frog Otolith1970-094A | Nov 9, 1970 | ARC | United States | Biology | Reentered (orbital decay) |
| Orbiting Picosat Automatic Launcher2000-004C | Jan 27, 2000 | Stanford | United States | Technology | In orbit |
| Orbiting Solar Observatory 71971-083A | Sep 29, 1971 | GSFC | United States | Astronomy | Reentered (orbital decay) |
| Orbiting Solar Observatory 81975-057A | Jun 21, 1975 | GSFC | United States | Astronomy | Reentered (orbital decay) |
| OrbView-11995-017C | Apr 3, 1995 | Orbimage | United States | Optical imaging | In orbit |
| OrbView-21997-037A | Aug 1, 1997 | Orbimage | United States | Optical imaging | In orbit |
| Orbview-32003-030A | Jun 26, 2003 | Orbimage | United States | Optical imaging | Deorbited |
| Oreol 11971-119A | Dec 27, 1971 | Yuzhnoe | Soviet Union | Space science | In orbit |
| Oreol 21973-107A | Dec 26, 1973 | MOM | Soviet Union | Space science | In orbit |
| Oreol 31981-094A | Sep 21, 1981 | IK | Soviet Union | Space science | In orbit |
| OREX1994-007A | Feb 3, 1994 | NASDA | Japan | Technology | Landed |
| ORFEUS-SPAS I1993-058C | Sep 12, 1993 | DARA | Germany | Astronomy | Attached to another object |
| ORFEUS-SPAS II1996-065B | Nov 19, 1996 | DLR | Germany | Astronomy | Attached to another object |
| OrigamiSat-12019-003B | Jan 18, 2019 | TITech | Japan | Technology | Reentered (orbital decay) |
| OrigamiSat-22026-088D | Apr 23, 2026 | Tokyo Kagaku D. | Japan | Technology | In orbit |
| Orion1972-031C | Apr 16, 1972 | MSC | United States | Human spaceflight | Left Earth orbit for deep space |
| Orion1972-U02 | Apr 24, 1972 | NASA | United States | — | Undocked |
| Orion 11994-079A | Nov 29, 1994 | Orion | United States | Communications | Renamed |
| Orion 31999-024A | May 5, 1999 | Loral Orion | United States | Communications | In orbit |
| Orion 62009-001A | Jan 18, 2009 | NRO | United States | Signals intelligence | In orbit |
| Orion 72010-063A | Nov 21, 2010 | NRO | United States | Signals intelligence | In orbit |
| Orion 92016-036A | Jun 11, 2016 | NRO | United States | Signals intelligence | In orbit |
| Orion EFT-12014-077A | Dec 5, 2014 | NASA JSC | United States | Human spaceflight | Landed |
| OroraTech2025-009CB | Jan 14, 2025 | OroraTech | Germany | Optical imaging | In orbit |
| ORS 11966-077C | Aug 19, 1966 | USAF SSD | United States | Technology | In orbit |
| ORS-52017-050A | Aug 26, 2017 | DoD ORS | United States | Missile early warning | In orbit |
| OSCAR 11961 A KAP 2 | Dec 12, 1961 | OSCAR | United States | Communications | Reentered (orbital decay) |
| OSCAR 131988-051B | Jun 15, 1988 | AMSAT-D | Germany | Communications | Reentered (orbital decay) |
| OSCAR 181990-005F | Jan 22, 1990 | Weber CAST | United States | Communications | In orbit |
| OSCAR 191990-005G | Jan 22, 1990 | AMSAT-LU | Argentina | Communications | In orbit |
| OSCAR 21962 CHI 2 | Jun 2, 1962 | OSCAR | United States | Communications | Reentered (orbital decay) |
| OSCAR 231988-033A | Apr 26, 1988 | USN NAVAIR | United States | Navigation | In orbit |
| OSCAR 31965-016F | Mar 9, 1965 | OSCAR | United States | Communications | In orbit |
| OSCAR 41965-108C | Dec 21, 1965 | OSCAR | United States | Communications | Reentered (orbital decay) |
| OSCAR 81978-026B | Mar 5, 1978 | AMSAT-NA | United States | Communications | In orbit |
| OSIRIS-3U1998-067NL | Aug 14, 2017 | PSU | United States | Space science | Reentered (orbital decay) |
| OSIRIS-REx2016-055A | Sep 8, 2016 | GSFC | United States | Deep space | Left Earth orbit for deep space |
| OSIRIS-REx SRC2016-055 | Sep 8, 2016 | JPL | United States | — | Escaped to another body, attached |
| OSO 11962 ZET 1 | Mar 7, 1962 | GSFC | United States | Astronomy | Reentered (orbital decay) |
| OSO 21965-007A | Feb 3, 1965 | GSFC | United States | Astronomy | Reentered (orbital decay) |
| OSO 31967-020A | Mar 8, 1967 | GSFC | United States | Astronomy | Reentered (orbital decay) |
| OSO 41967-100A | Oct 18, 1967 | GSFC | United States | Space science | Reentered (orbital decay) |
| OSO 51969-006A | Jan 22, 1969 | GSFC | United States | Astronomy | Reentered (orbital decay) |
| OSO 61969-068A | Aug 9, 1969 | GSFC | United States | Astronomy | Reentered (orbital decay) |
| OSSI-12013-015B | Apr 19, 2013 | OSSI | South Korea | Technology | Reentered (orbital decay) |
| OSTM/Jason-22008-032A | Jun 20, 2008 | CNES | France | Space science | In orbit |
| OTS 21978-044A | May 11, 1978 | ESA | European Space Agency | Communications | In orbit |
| OTV-12010-015A | Apr 22, 2010 | AF RCO | United States | Technology | Landed |
| OTV-22011-010A | Mar 5, 2011 | AF RCO | United States | Technology | Landed |
| OTV-32012-071A | Dec 11, 2012 | AF RCO | United States | Technology | Landed |
| OTV-42015-025A | May 20, 2015 | AF RCO | United States | Technology | Landed |
| OTV-52017-052A | Sep 7, 2017 | AF RCO | United States | Technology | Landed |
| OTV-62020-029A | May 17, 2020 | AF RCO | United States | Technology | Landed |
| OTV-72023-210A | Dec 29, 2023 | AF RCO | United States | Technology | Landed |
| OTV-82025-183A | Aug 22, 2025 | AF RCO | United States | Technology | In orbit |
| OUFTI-12016-025C | Apr 25, 2016 | Liege | Belgium | Communications | Reentered (orbital decay) |
| Ouna2007-039C | Sep 14, 2007 | JAXA | Japan | Deep space | Left for deep space attached to another object |
| OV1- 21965-078A | Oct 5, 1965 | USAF OAR | United States | Space science | In orbit |
| OV1- 41966-025A | Mar 30, 1966 | USAF OAR | United States | Space science | In orbit |
| OV1- 51966-025B | Mar 30, 1966 | USAF OAR | United States | Missile early warning | In orbit |
| OV1-101966-111B | Dec 11, 1966 | USAF OAR | United States | Space science | Reentered (orbital decay) |
| OV1-121967-072D | Jul 27, 1967 | USAF OAR | United States | Space science | Reentered (orbital decay) |
| OV1-131968-026A | Apr 6, 1968 | USAF OAR | United States | Space science | In orbit |
| OV1-141968-026B | Apr 6, 1968 | USAF OAR | United States | Space science | In orbit |
| OV1-151968-059A | Jul 11, 1968 | USAF OAR | United States | Space science | Reentered (orbital decay) |
| OV1-161968-059B | Jul 11, 1968 | USAF OAR | United States | Space science | Reentered (orbital decay) |
| OV1-171969-025A | Mar 18, 1969 | USAF OAR | United States | Space science | Reentered (orbital decay) |
| OV1-17A1969-025D | Mar 18, 1969 | NRL | United States | Space science | Reentered attached to another object |
| OV1-181969-025B | Mar 18, 1969 | USAF OAR | United States | Space science | Reentered (orbital decay) |
| OV1-191969-025C | Mar 18, 1969 | USAF OAR | United States | Space science | In orbit |
| OV1-201971-067A | Aug 7, 1971 | USAF STP | United States | Space science | Reentered (orbital decay) |
| OV1-61966-099C | Nov 3, 1966 | USAF OAR | United States | Missile early warning | Reentered (orbital decay) |
| OV1-861967-072A | Jul 27, 1967 | USAF OAR | United States | Space science | Reentered (orbital decay) |
| OV1-91966-111A | Dec 11, 1966 | USAF OAR | United States | Technology | In orbit |
| OV2-11965-082C | Oct 15, 1965 | USAF SSD | United States | Space science | In orbit |
| OV2-31965-108V | Dec 21, 1965 | USAF SSD | United States | Space science | In orbit |
| OV2-51968-081A | Sep 26, 1968 | SAMSO | United States | Space science | In orbit |
| OV3-11966-034A | Apr 22, 1966 | USAF OAR | United States | Space science | In orbit |
| OV3-21966-097A | Oct 28, 1966 | USAF OAR | United States | Space science | Reentered (orbital decay) |
| OV3-31966-070A | Aug 4, 1966 | USAF OAR | United States | Space science | In orbit |
| OV3-41966-052A | Jun 10, 1966 | USAF OAR | United States | Technology | In orbit |
| OV3-61967-120A | Dec 5, 1967 | USAF OAR | United States | Space science | Reentered (orbital decay) |
| OV4-1R1966-099B | Nov 3, 1966 | USAF OAR | United States | Technology | Reentered (orbital decay) |
| OV4-1T1966-099D | Nov 3, 1966 | USAF OAR | United States | Technology | Reentered (orbital decay) |
| OV5-51969-046A | May 23, 1969 | SAMSO | United States | Space science | In orbit, no recent tracking |
| OV5-61969-046B | May 23, 1969 | SAMSO | United States | Space science | In orbit, no recent tracking |
| OV5-91969-046C | May 23, 1969 | SAMSO | United States | Technology | In orbit, no recent tracking |
| Ovzon-32024-003A | Jan 3, 2024 | Ovzon | Sweden | Communications | In orbit |
| Ørsted1999-008B | Feb 23, 1999 | DMI | Denmark | Space science | In orbit |
Source: GCAT payload catalog (CC BY 4.0) and Wikidata (CC0).