Un-manned
Satellite
(or Spacecraft)
Philately

Spacecraft by Type/Discipline	Spacecraft by Name or Series (These columns contain expanded information on a subset of the spacecraft covered in the left-most column)
Items on the pages linked below feature the following:
Launch information: launch dates reference images and the following (only if there are no satellite-specific pages): launch covers other postal items	Launch covers: launch covers anniversary-of-launch covers launch-related event covers	Other postal items: stamps, souvenir sheets, and miniature sheets postal stationery (aerogrammes, stamped envelopes, and postal cards) postmarks, cancels, and meters cinderellas and postcards FDCs, souvenir cards, maxicards, and other postal covers with appropriate cancels and/or cachets banknotes and coins
Items on the pages linked below are arranged as follows:
grouped by satellite name or series then chronologically by launch date	chronologically by launch date then alphabetically by issuing country	alphabetically by issuing country then chronologically by year of issue
Scientific/research/technology satellites (see below for Russian scientific/research/technology satellites also for more-specific types/disciplines)	USA: Explorer-1 satellite (first USA satellite) Explorer-series satellites (except Explorer-1) Injun, SolRad, GEOS, and ISEE series (Explorer-related series) (Earlier) Pioneer-series spacecraft (non-planetary: Pioneer-0 — Pioneer-E) Vanguard-series satellites OGO-series satellites [Apollo-deployed] P&FS series LDEF satellite Pegasus-series satellites SPAS-series GP-series satellites LAGEOS and LARES series SERT series satellites SCATHA (and other USA scientific/research/technology satellites) [Mercury and Gemini-deployed] Sub-satellites GRACE and GRACE-FO satellites Transtage-series satellites TechEdSat series MEV series spacecraft STARSHINE series satellites ALMASat International/Foreign: Alouette and ISIS series Éole-series satellites Ariel / UK series satellites San Marco-series satellites A-1 satellite FR-1 satellite D-series satellites Azur, Aeros, and Dial-Wika satellites Aryabhata, Bhaskara, Rohini, and Badr-series satellites Freja and Viking (and other Scandinavian scientific/research/technology satellites) ESRO series HEOS series ESA-GEOS series ETS / Kiku series EXOS series Tansei-series satellites Ohsumi (and other Japanese scientific/research/technology satellites) Intasat STARLET and Stella Cluster-series satellites X-series satellites Kwangmyongsong-series satellites WRESAT and Equator-S (and other non-USA scientific/research/technology satellites) PROBA series satellites MaqSat series CAT series satellites SJ series satellites FSW / JB series satellites TC / Doublestar series satellites CanX and BRITE series satellites	USA: Explorer-1 satellite (first USA satellite) Explorer-series satellites (except Explorer-1) Injun, SolRad, GEOS, and ISEE series (Explorer-related series) (Earlier) Pioneer-series spacecraft (non-planetary: Pioneer-0 — Pioneer-E) Vanguard-series satellites OGO-series satellites [Apollo-deployed] P&FS series LDEF satellite Pegasus-series satellites SPAS-series GP-series satellites LAGEOS and LARES series SERT series satellites SCATHA (and other USA scientific/research/technology satellites) [Mercury and Gemini-deployed] Sub-satellites GRACE and GRACE-FO satellites Transtage-series satellites TechEdSat series MEV series spacecraft STARSHINE series satellites ALMASat International/Foreign: Alouette and ISIS series Éole-series satellites Ariel / UK series satellites San Marco-series satellites A-1 satellite FR-1 satellite D-series satellites Azur, Aeros, and Dial-Wika satellites Aryabhata, Bhaskara, Rohini, and Badr-series satellites Freja and Viking (and other Scandinavian scientific/research/technology satellites) ESRO series HEOS series ESA-GEOS series ETS / Kiku series EXOS series Tansei-series satellites Ohsumi (and other Japanese scientific/research/technology satellites) Intasat STARLET and Stella Cluster-series satellites X-series satellites Kwangmyongsong-series satellites WRESAT and Equator-S (and other non-USA scientific/research/technology satellites) PROBA series satellites MaqSat series CAT series satellites SJ series satellites FSW / JB series satellites TC / Doublestar series satellites CanX and BRITE series satellites
Russian scientific/research/technology satellites	Sputnik-1 satellite (first artificial satellite) (Selected) Sputnik-2 satellite Sputnik-3 satellite Sputnik-4 and beyond satellites Elektron-series satellites Proton-series satellites Magion-series satellites ARCAD / Aureole / Oreol-series satellites Interkosmos-series satellites Kosmos-series satellites Prognoz-series satellites SRET / MAS series Foton series	Sputnik-1 satellite (first artificial satellite) (Selected) Sputnik-2 satellite Sputnik-3 satellite Sputnik-4 and beyond satellites Elektron-series satellites Proton-series satellites Magion-series satellites ARCAD / Aureole / Oreol-series satellites Interkosmos-series satellites Kosmos-series satellites Prognoz-series satellites SRET / MAS series Foton series
	Soviet propaganda-design spacecraft	Soviet propaganda-design spacecraft
Polar-orbiting weather satellites	TIROS and ESSA series Nimbus-series satellites ITOS / TIROS-N / ATN (NOAA) series Meteor-series satellites FY-1 and FY-3 series satellites MetOp-series satellites S-NPP / JPSS series	TIROS and ESSA series Nimbus-series satellites ITOS / TIROS-N / ATN (NOAA) series Meteor-series satellites FY-1 and FY-3 series satellites MetOp-series satellites S-NPP / JPSS series
Geostationary weather satellites	ATS series SMS and GOES series Meteosat, MSG, and MTG series GMS and MTSat series Insat [with meteorological instrumentation] and MetSat / Kalpana GOMS / Elektro series FY-2 and FY-4 series Geo-Kompsat / Chollian series	ATS series SMS and GOES series Meteosat, MSG, and MTG series GMS and MTSat series Insat [with meteorological instrumentation] and MetSat / Kalpana GOMS / Elektro series FY-2 and FY-4 series Geo-Kompsat / Chollian series
Environmental-observing (Earth-observation) satellites	USA or USA-led: ERTS / Landsat series TOPEX-Poseidon satellite A-train constellation satellites: EOS-Aqua, EOS-Aura, CloudSat, CALIPSO, PARASOL, and OCO ERBS and UARS (and other USA environmental-observing satellites) QuickBird and OrbView (and other USA commercial environmental-observing satellites) Coriolis / WindSat Jason-series satellites Lemur constellation satellites NuSat constellation Capella constellation satellites International/Foreign SPOT series IRS series ERS-series satellites ADEOS, MOS, and JERS series (and other Japanese environmental-observing satellites) Radarsat (and other Canadian environmental-observing satellites) Envisat (and other European environmental-observing satellites) Resurs (and other Russian environmental-observing satellites) EROS (and other Israeli environmental-observing satellites) LAPAN (and other Asian environmental-observing satellites) Megha-Tropiques and SARAL Kompsat / Arirang series satellites Pleiades (Pléiades) series satellites DubaiSat / KhalifaSat series AlSat and EgyptSat (and other North African environmental-observing satellites) SAC series Formosat / Rocsat / Chunghua series CryoSat series ZY-1 / CBERS, ZY-2 / Resource-2, and ZY-3 / Resouce-3 series satellites Sentinel-series satellites Yaogan-series satellites GF-series satellites COSMO-SkyMed and CSG series satellites BelKa / BKA series satellites StriX constellation satellites	USA or USA-led: ERTS / Landsat series TOPEX-Poseidon satellite A-train constellation satellites: EOS-Aqua, EOS-Aura, CloudSat, CALIPSO, PARASOL, and OCO ERBS and UARS (and other USA environmental-observing satellites) QuickBird and OrbView (and other USA commercial environmental-observing satellites) Coriolis / Windsat Jason-series satellites Lemur constellation satellites NuSat constellation Capella constellation satellites International/Foreign SPOT series IRS series ERS-series satellites ADEOS, MOS, and JERS series (and other Japanese environmental-observing satellites) Radarsat (and other Canadian environmental-observing satellites) Envisat (and other European environmental-observing satellites) Resurs (and other Russian environmental-observing satellites) EROS (and other Israeli environmental-observing satellites) LAPAN (and other Asian environmental-observing satellites) Megha-Tropiques and SARAL Kompsat / Arirang series satellites Pleiades (Pléiades) series satellites DubaiSat / KhalifaSat series AlSat and EgyptSat (and other North African environmental-observing satellites) SAC series Formosat / Rocsat / Chunghua series CryoSat series ZY-1 / CBERS, ZY-2 / Resource-2, and ZY-3 / Resource-3 series satellites Sentinel-series satellites Yaogan-series satellites GF-series satellites COSMO-SkyMed and CSG series satellites BelKa / BKA series satellites StriX constellation satellites
Solar-observing spacecraft	OSO-series satellites (West German) Helios-series satellites SMM satellite SOHO spacecraft Ulysses spacecraft Solar-series satellites STEREO spacecraft SDO spacecraft Genesis spacecraft Picard satellite Solar Orbiter spacecraft Solwind and Wind (and other USA solar-observing spacecraft) PSP spacecraft KORONAS / CORONAS series spacecraft	OSO-series satellites (West German) Helios-series satellites SMM satellite SOHO spacecraft Ulysses spacecraft Solar-series satellites STEREO spacecraft SDO spacecraft Genesis spacecraft Picard satellite Solar Orbiter spacecraft Solwind and Wind (and other USA solar-observing spacecraft) PSP spacecraft KORONAS / CORONAS series spacecraft
Astronomical/telescope satellites	USA: OAO-series satellites Hubble / HST satellite HEAO-series satellites IRAS Chandra / CXO satellite Compton / CGRO satellite Kepler spacecraft Spitzer / SST satellite Fermi / FGST satellite SPARTAN-series satellites SFU satellite JWST spacecraft WFIRST spacecraft International/Foreign Astro-series satellites Muses-series spacecraft Planck satellite Newton / XMM satellite Herschel / HSO satellite COROT satellite ANS and ISO (and other non-USA astronomical/telescope satellites)	USA: OAO-series satellites Hubble / HST satellite HEAO-series satellites IRAS Chandra / CXO satellite Compton / CGRO satellite Kepler spacecraft Spitzer / SST satellite Fermi / FGST satellite SPARTAN-series satellites SFU satellite JWST spacecraft WFIRST spacecraft International/Foreign Astro-series satellites Muses-series spacecraft Planck satellite Newton / XMM satellite Herschel / HSO satellite COROT satellite ANS and ISO (and other non-USA astronomical/telescope satellites)
Planetary-exploration spacecraft	USA: (Later) Pioneer-series spacecraft (planetary: Pioneer-10 — Pioneer-13) Magellan spacecraft Galileo spacecraft Cassini-Huygens spacecraft Voyager-series spacecraft Viking-series spacecraft Mariner-series spacecraft New Horizons spacecraft MPL spacecraft PML spacecraft MAVEN spacecraft Mars Observer satellite MGS satellite MCO satellite Mars Odyssey satellite MRO satellite MESSENGER spacecraft JUNO spacecraft Mars rover missions InSight spacecraft Russia: Phobos-series spacecraft Mars-series spacecraft Venera-series spacecraft Other International/Foreign: (Later) Planet-series spacecraft (planetary: Planet-B — Planet-C) Venus Express spacecraft Mars Express spacecraft ExoMars spacecraft BepiColombo spacecraft Mangalyaan / MOM satellite Al-Amal / Hope satellite Tianwen / Huoxing spacecraft JUICE spacecraft	USA: (Later) Pioneer-series spacecraft (planetary: Pioneer-10 — Pioneer-13) Magellan spacecraft Galileo spacecraft Cassini-Huygens spacecraft Voyager-series spacecraft Viking-series spacecraft Mariner-series spacecraft New Horizons spacecraft MPL spacecraft PML spacecraft MAVEN spacecraft Mars Observer satellite MGS satellite MCO satellite Mars Odyssey satellite MRO satellite MESSENGER spacecraft JUNO spacecraft Mars rover missions InSight spacecraft Russia: Phobos-series spacecraft Mars-series spacecraft Venera-series spacecraft Other International/Foreign: (Later) Planet-series spacecraft (planetary: Planet-B — Planet-C) Venus Express spacecraft Mars Express spacecraft ExoMars spacecraft BepiColombo spacecraft Mangalyaan / MOM satellite Al-Amal / Hope satellite Tianwen / Huoxing spacecraft JUICE spacecraft
Lunar-exploration spacecraft	USA: Lunar Orbiter-series satellites Surveyor-series spacecraft Ranger-series spacecraft Lunar Prospector spacecraft LRO and LCROSS satellites LADEE satellite GRAIL spacecraft Clementine / DSPSE series satellites Russia: Zond-series spacecraft Luna-series spacecraft (and Lunokhod rovers) Other International/Foreign: Muses-series spacecraft SMART satellite Chang'e (and Queqiao) series spacecraft Chandrayaan-series spacecraft SELENE / Kaguya satellite SLIM / Moon Sniper spacecraft KPLO / Danuri spacecraft	USA: Lunar Orbiter-series satellites Surveyor-series spacecraft Ranger-series spacecraft Lunar Prospector spacecraft LRO and LCROSS satellites LADEE satellite GRAIL spacecraft Clementine / DSPSE series satellites Russia: Zond-series spacecraft Luna-series spacecraft (and Lunokhod rovers) Other International/Foreign: Muses-series spacecraft SMART satellite Chang'e (and Queqiao) series spacecraft Chandrayaan-series spacecraft SELENE / Kaguya satellite SLIM / Moon Sniper spacecraft KPLO / Danuri spacecraft
Asteroid-exploration spacecraft	Muses-series spacecraft OSIRIS-REx spacecraft Dawn spacecraft NEAR / Shoemaker (and other asteroid-exploration spacecraft)	Muses-series spacecraft OSIRIS-REx spacecraft Dawn spacecraft NEAR / Shoemaker (and other asteroid-exploration spacecraft)
Cometary-exploration spacecraft	Giotto spacecraft (Earlier) Planet-series spacecraft (cometary: MS-T5 — Planet-A) Vega-series spacecraft Stardust (and other USA cometary-exploration spacecraft) Rosetta (and Philae) spacecraft	Giotto spacecraft (Earlier) Planet-series spacecraft (cometary: MS-T5 — Planet-A) Vega-series spacecraft Stardust (and other USA cometary-exploration spacecraft) Rosetta (and Philae) spacecraft
Military weather-related and scientific/research/technology satellites	USA: Discoverer / Corona series satellites DSAP / DMSP series (Selected) Keyhole (KH) series satellites Vela-series satellites (Selected) Orbiting Vehicle (OV) series satellites MIDAS series satellites SAMOS series satellites Canyon-series satellites DSP series satellites LES and LCS series FRUSA (and other USA military weather-related and scientific/research/technology satellites) (USAF) ERS series satellites (Selected) National Reconnaissance Office Launch (NROL) series satellites (Selected) Navy Ocean Surveillance Satellite (NOSS) series Rhyolite / Aquacade series satellites SBIRS-series satellites Magnum / Orion series satellites Chalet / Vortex series satellites Lacrosse / Onyx series satellites Jumpseat-series satellites Nemesis-series satellites Strawman-series satellites GSSAP / Hornet series satellites X-37b_OTV series spacecraft FalconSat-series STPSat-series (USAF) ORS series P102 series (and other related USAF P-numbered military satellites) Poppy-series satellites AeroCube-series satellites International/Foreign: (French) Helios-series satellites Falcon Eye series (and other non-USA military reconnaissance satellites) Yantar-series satellites US-K / Oko series satellites	USA: Discoverer / Corona series satellites DSAP / DMSP series (Selected) Keyhole (KH) series satellites Vela-series satellites (Selected) Orbiting Vehicle (OV) series satellites MIDAS series satellites SAMOS series satellites Canyon-series satellites DSP series satellites LES and LCS series FRUSA (and other USA military weather-related and scientific/research/technology satellites) (USAF) ERS series satellites (Selected) National Reconnaissance Office Launch (NROL) series satellites (Selected) Navy Ocean Surveillance Satellite (NOSS) series Rhyolite / Aquacade series satellites SBIRS-series satellites Magnum / Orion series satellites Chalet / Vortex series satellites Lacrosse / Onyx series satellites Jumpseat-series satellites Nemesis-series satellites Strawman-series satellites GSSAP / Hornet series satellites X-37b_OTV series spacecraft FalconSat-series STPSat-series (USAF) ORS series P102 series (and other related USAF P-numbered military satellites) Poppy-series satellites AeroCube-series satellites International/Foreign: (French) Helios-series satellites Falcon Eye series (and other non-USA military reconnaissance satellites) Yantar-series satellites US-K / Oko series satellites
Amateur (ham) radio satellites	OSCAR series RS-series satellites Iskra-series satellites	OSCAR series RS-series satellites Iskra-series satellites
Communications satellites	USA: SCORE and Courier-series satellites Echo-series satellites Telstar-series satellites TDRS-series Westar-series satellites Syncom-series satellites Relay-series satellites Satcom-series GE / AMC series satellites XM and SXM satellite radio series GStar-series satellites ASC-series and ACTS ViaSat-series Military: NATO series satellites IDCSP and DSCS series FltSatCom-series SDS / Quasar series satellites Skynet-series satellites TACOMSAT AEHF series satellites Early Bird / Intelsat: Early Bird (Intelsat-1) (and Bird-named Intelsat-2s, and Intelsat-2-4) Other cylindrical spin-stabilized Intelsat(s) (Intelsat-3, 4, 4A, and 6 series) Three-axis-stabilized Intelsat(s) (Intelsat-5, 7, and later series) Satellite constellations: (Selected) Iridium (telephone constellation) satellites (Selected) Globalstar constellation satellites (Selected) Orbcomm constellation satellites (Selected) Starlink (internet constellation) satellites (Selected) O3b (internet constellation) satellites (Selected) Flock constellation satellites (Selected) OneWeb (internet constellation) satellites Japan: Sakura / CS series Yuri / BS series and BSat-series JCSat-series Ayame / ECS series Superbird-series (and other Japanese communications satellites) Russia: Molniya-series satellites Gorizont-series satellites Ekran-series satellites Luch-series satellites Ekspress-series satellites Raduga-series satellites Gonets-series satellites Strela-series satellites Other International/Foreign: Symphonie-series satellites OTS-series SIRIO-series Olympus / L-Sat and ARTEMIS (and other non-USA single-launch communications satellites) Palapa-series satellites Insat series Anik / Telesat series (and other Canadian communications satellites) Inmarsat series (including Marisat, Marots, and Marecs) Eutelsat / ECS series DFH series TDF and TV-Sat series DFS / Kopernikus series Astra-series satellites Telecom and Syracuse series satellites Aussat / Optus series satellites Comstar-series satellites Brasilsat-series (and other Brazilian communications satellites) SBS-series Italsat-series Morelos-series (and other Mexican communications satellites) Arabsat-series Turksat-series Panamsat / PAS series AsiaSat-series (and other China/PRC communications satellites) Hispasat-series (and other Spanish communications satellites) Spacenet-series satellites Tele-X-series satellites HotBird-series satellites Measat-series SES series Thaicom-series satellites Koreasat / Mugunghwa series Galaxy-series satellites DirecTV-series satellites AMSC / M-Sat series EchoStar-series satellites GSat series NSS-series satellites HellasSat-series Telkom-series satellites HYLAS-series Vinasat-series Arsat-series Nilesat-series Thuraya and YahSat-series KazSat-series Thor-series and Sirius-series satellites Azerspace-series satellites Rascom-series AMOS-series SkyMuster-series SICRAL series satellites APPLE satellite	USA: SCORE and Courier-series satellites Echo-series satellites Telstar-series satellites TDRS-series Westar-series satellites Syncom-series satellites Relay-series satellites Satcom-series GE / AMC series satellites XM and SXM satellite radio series GStar-series satellites ASC-series and ACTS ViaSat-series Military: NATO series satellites IDCSP and DSCS series FltSatCom-series SDS / Quasar series satellites Skynet-series satellites TACOMSAT AEHF series satellites Early Bird / Intelsat: Early Bird (Intelsat-1) (and Bird-named Intelsat-2s, and Intelsat-2-4) Other cylindrical spin-stabilized Intelsat(s) (Intelsat-3, 4, 4A, and 6 series) Three-axis-stabilized Intelsat(s) (Intelsat-5, 7, and later series) Intelsat anniversaries (only, no satellites) Satellite constellations: (Selected) Iridium (telephone constellation) satellites (Selected) Globalstar constellation satellites (Selected) Orbcomm constellation satellites (Selected) Starlink (internet constellation) satellites (Selected) O3b (internet constellation) satellites (Selected) Flock constellation satellites (Selected) OneWeb (internet constellation) satellites Japan: Sakura / CS series Yuri / BS series and BSat-series JCSat-series Ayame / ECS series Superbird-series (and other Japanese communications satellites) Russia: Molniya-series satellites Gorizont-series satellites Ekran-series satellites Luch-series satellites Ekspress-series satellites Raduga-series satellites Gonets-series satellites Strela-series satellites Other International/Foreign: Symphonie-series satellites OTS-series SIRIO-series Olympus / L-Sat and ARTEMIS (and other non-USA single-launch communications satellites) Palapa-series satellites Insat series Anik / Telesat series (and other Canadian communications satellites) Inmarsat series (including Marisat, Marots, and Marecs) Eutelsat / ECS series DFH series TDF and TV-Sat series DFS / Kopernikus series Astra-series satellites Telecom and Syracuse series satellites Aussat / Optus series satellites Comstar-series satellites Brasilsat-series (and other Brazilian communications satellites) SBS-series Italsat-series Morelos-series (and other Mexican communications satellites) Arabsat-series Turksat-series Panamsat / PAS series AsiaSat-series (and other China/PRC communications satellites) Hispasat-series (and other Spanish communications satellites) Spacenet-series satellites Tele-X-series satellites HotBird-series satellites Measat-series SES series Thaicom-series satellites Koreasat / Mugunghwa series Galaxy-series satellites DirecTV-series satellites AMSC / M-Sat series EchoStar-series satellites GSat series NSS-series satellites HellasSat-series Telkom-series satellites HYLAS-series Vinasat-series Arsat-series Nilesat-series Thuraya and YahSat-series KazSat-series Thor-series and Sirius-series satellites Azerspace-series satellites Rascom-series AMOS-series SkyMuster-series SICRAL series satellites APPLE satellite
Navigation satellites	Nadezhda and Sterkh series satellites GPS / NAVSTAR series (and other navigation-constellation satellites) Transit-series satellites ANNA-series satellites SECOR-series satellites	Nadezhda and Sterkh series satellites GPS / NAVSTAR series (and other navigation-constellation satellites) Transit-series satellites ANNA-series satellites SECOR-series satellites
Biological satellites	Biosatellite-series Bion-series satellites	Biosatellite-series Bion-series satellites
Un-manned spacecraft in manned programs	Mercury program spacecraft [un-manned only] Gemini program spacecraft [un-manned only] Saturn-Apollo program spacecraft [un-manned only] Artemis-Orion program spacecraft [un-manned only]	Mercury program spacecraft [un-manned only] Gemini program spacecraft [un-manned only] Saturn-Apollo program spacecraft [un-manned only] Artemis-Orion program spacecraft [un-manned only]
STS-related satellites (deployed; or retrieved, repaired, and re-deployed; or recovered) un-manned satellites [most of these satellites are also found under the appropriate type/discipline for their mission]	SMM satellite Hubble / HST satellite Magellan spacecraft Galileo spacecraft Ulysses spacecraft Chandra / CXO satellite Compton / CGRO satellite LDEF satellite TDRS-series SPAS-series SPARTAN-series satellites Westar-series satellites Palapa-series satellites SFU satellite TSS-series EURECA satellite ASC-series and ACTS	SMM satellite Hubble / HST satellite Magellan spacecraft Galileo spacecraft Ulysses spacecraft Chandra / CXO satellite Compton / CGRO satellite LDEF satellite TDRS-series SPAS-series SPARTAN-series satellites Westar-series satellites Palapa-series satellites SFU satellite TSS-series EURECA satellite ASC-series and ACTS
	Space Shuttle and un-manned satellites	Space Shuttle and un-manned satellites (both appearing together)
(Selected) ISS (and other space-station-related) spacecraft (transfer vehicles and sub-satellites)	RS-series satellites Iskra-series satellites	RS-series satellites Iskra-series satellites
	(Selected) ISS (and other space-station-related) spacecraft Autonomous Transfer Vehicle (ATV) H-2 Transfer Vehicle (HTV)	(Selected) ISS (and other space-station-related) spacecraft Autonomous Transfer Vehicle (ATV) H-2 Transfer Vehicle (HTV)
Other satellite-related systems or programs	Automatic Picture Transmission (APT) system (and WEFAX, and APT-like antennas) Argos Data Collection and Location System (and DCS on geostationary satellites) COSPAS/SARSAT program (Sub-orbital) Atmospheric and other scientific research rockets Diamant launch rockets (launch rocket for A-1, D-series, and others)	Automatic Picture Transmission (APT) system (and WEFAX, and APT-like antennas) Argos Data Collection and Location System (and DCS on geostationary satellites) COSPAS/SARSAT program (Sub-orbital) Atmospheric and other scientific research rockets Diamant launch rockets (launch rocket for A-1, D-series, and others)
Other satellite groups/names or images/instruments	IMP-series and AIMP-series satellites Discovery-series spacecraft ESSP-series satellites MIDEX-series satellites SMEX-series satellites UNEX-series satellites STEDI-series satellites New Frontiers-series spacecraft Earth Explorer-series satellites NMP-series spacecraft (Selected) USA-series satellites (Selected) ELaNa cubesat groups Transporter (and SmallSat Express) smallsat groups Ozone (O3) monitoring satellites (and instruments) Solar sail spacecraft	Solar sail spacecraft
	Remote sensing of the Earth-atmosphere system from space (Instruments and symbolic scanning or imaging) Satellite imagery of the Earth Gemini-mission Earth imagery Apollo-mission Earth (and Earthrise) imagery Skylab-mission Earth imagery STS-mission and ISS-related Earth imagery (Generic) Earthrise imagery (by stamp designers and artists)	Remote sensing of the Earth-atmosphere system from space (Instruments and symbolic scanning or imaging) Satellite imagery of the Earth Gemini-mission Earth imagery Apollo-mission Earth (and Earthrise) imagery Skylab-mission Earth imagery STS-mission and ISS-related Earth imagery (Generic) Earthrise imagery (by stamp designers and artists)
	USA Scott C76 stamp (and derivatives, reproductions, or designs based on C76)	USA Scott C76 stamp (and derivatives, reproductions, or designs based on C76) USA Scott 1912-1919 stamps (and sets of 1912-1919 FDCs / maxicards and 1919a items) USA Scott 2568-2577 stamps (and sets of 2568-2577 FDCs / maxicards and 2577a items)
Unknown-identity or fantasy-design spacecraft, and canceled spacecraft and forerunners	Unknown-identity or fantasy-design spacecraft Canceled spacecraft and forerunners (which are depicted and named on postal items)	Unknown-identity or fantasy-design spacecraft Canceled spacecraft and forerunners (which are depicted and named on postal items)
General references to satellites	General references to satellites	General references to satellites
Summary: 23 types/disciplines	Summary: 170+ names/series/groups