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NASA'sExplorer Missions |
| National Space Science Data Center NASA Goddard Space Flight Center Greenbelt, MD 20771, USA |
|
NASA'sExplorer Missions |
| National Space Science Data Center NASA Goddard Space Flight Center Greenbelt, MD 20771, USA |
Over the years, NASA has launched a series of "Explorer" spacecraft carrying a wide variety of scientific investigations. The list below identifies the 74 successful and 4 unsuccessful missions as of this writing (March 2000). The list identifies the international ID for each spacecraft, its common name (different than "Explorer N" for most), its launch date, and a list of experiments and associated Principal Investigators associated with each. As of this writing, Explorers 50 (IMP 8), 67-74 and 77-78 (EUVE, SAMPEX, RXTE, FAST, ACE, SNOE, TRACE, SWAS, FUSE, and IMAGE) are still operating.
![[Bar chart of Explorer lifetimes (Feb. 1998)]](/multi/image/explorer_diagram.jpg)
NASA's Explorer spacecraft series is not simply the longest running series of spacecraft, it has produced highly-durable (i.e., well-engineered) spacecraft as well. The diagram (current as of Feb. 1998) illustrates this point very clearly. Of the 73 successful Explorer missions depicted, fully five of them had had missions which lasted 10 or more years, the longest of which (IMP 8) has been operational for over 26 years now and still produces valuable information about the solar wind. NASA's IUE spacecraft operated for 19 years and produced copious amounts of data for the astronomical community. The ISEE 3/ICE spacecraft operated for 14 years. As of March of 2000, of the ten operational Explorer missions, SNOE and TRACE have operated for about two year, ACE two and a half years, FAST for about three and a half, RXTE for over four, EUVE and SAMPEX for nearly eight, and IMP 8 for more than 26. SWAS has been operational for slightly more than one year, having been launched in early December 1998. The latest two additions are FUSE (June 1999) and IMAGE (March 2000).
Satellite Name NSSDC ID Identification Contact
Explorer 1 58-001A Explorer 1 02/01/58 US
58-001A-01 Expl 1, Energetic Particles Exp Van Allen
58-001A-02 Explorer 1, Micrometeorite Manring
58-001A-03 Explorer 1, Atmos Drag Density Jacchia
Explorer 2 EXPLR2 Explorer 2, Failed 03/05/58 US
Explorer 3 58-003A Explorer 3 03/26/58 US
58-003A-01 Expl 3, Cosmic Ray Van Allen
58-003A-02 Explorer 3, Micrometeorite Manring
Explorer 4 58-005A Explorer 4,1958 Epsilon, 07/26/58 US
58-005A-01 Explorer 4,Charged Particle Det Van Allen
Explorer 5 EXPLR5 Explorer 5, Failed 08/24/58 ARPA
Explorer 6 59-004A Explorer 6 08/07/59 USAF-NASA
59-004A-01 Expl 6,Triple Coinc Prop Counter Simpson
59-004A-02 Expl 6,Scintillation Counter Sonett
59-004A-03 Expl 6,Ion Ch+GM(E/1.55, 2.86,P) Winckler
59-004A-04 Expl 6,Search Coil Magnetometer Sonett
59-004A-05 Expl 6,Television Baker
59-004A-06 Expl 6,Micrometeorites Dubin
59-004A-07 Expl 6,VLF Receiver Helliwell
59-004A-08 Expl 6,Fluxgate Magnetometer Coleman
59-004A-09 Expl 6,Beacon(108+378MHZ) Graves
Explorer 7 59-009A Explorer 7 10/13/59 NASA
59-009A-01 Explorer 7,Thermal Radiation Suomi
59-009A-02 Explorer 7,Solar Radiation Friedman
59-009A-03 Explorer 7,Heavy Prim Cosmic Ray Pomerantz
59-009A-04 Explorer 7,Radiation + Sol Proton Van Allen
59-009A-05 Explorer 7,Micrometeorite Lagow
59-009A-06 Explorer 7,RF Beacon (Zone) Swenson
Explorer 8 60-014A Explorer 8 11/03/60 NASA-GSFC
60-014A-01 Explorer 8,RF Impedance Kane
60-014A-02 Explorer 8,Ion Traps Bourdeau
60-014A-03 Explorer 8,Langmuir Probe Berg
60-014A-04 Explorer 8,Micrometeorites Berg
60-014A-05 Explorer 8,Micrometeorite McCracken
60-014A-06 Explorer 8,Electric Field Meter Donley
60-014A-07 Explorer 8,Atmos Drag Density Jacchia
Explorer 9 61-004A Explorer 9,Balloon 02/16/61 NASA-LARC
61-004A-01 Explorer 9,Atmospheric Drag Osullivan
Explorer 10 61-010A P 14 03/25/61 NASA-GSFC
61-010A-01 P 14,RB-Vap+Flux-G Magnetometers Heppner
61-010A-02 P 14,Faraday Cup Plasma Probe Bridge
61-010A-03 P 14,Sun-Moon-Earth Aspect Sensor Albus
Explorer 11 61-013A S 15 04/27/61 NASA-GSFC
61-013A-01 S 15,Gamma Ray Telescope Kraushaar
61-013A-02 S 15,Charged Particle Garmire
Explorer 12 61-020A EPE-A 08/16/61 NASA-GSFC
61-020A-01 EPE-A,Electrostatic Analyzer Bader
61-020A-02 EPE-A,3-Axis Flux Magnetometer Cahill
61-020A-03 EPE-A,Charged Particle Experiment Van Allen
61-020A-04 EPE-A,CR Scint + Dbl Scint Tele McDonald
61-020A-05 EPE-A,0.1-10MeV Prot+Elec Scint Davis
61-020A-06 EPE-A,Solar Cell Damage Longanekr
Explorer 13 61-022A S 55A 08/25/61 NASA-LARC
61-022A-01 S 55A,Pressurized Cell Gurtler
61-022A-02 S 55A,Copper Wire Card Secretan
61-022A-03 S 55A,Cadmium Sulfide Cell Secretan
61-022A-04 S 55A,Impact Detection Beswick
61-022A-05 S 55A,Grid Detectors
Explorer 14 62-051A EPE-B 10/02/62 NASA-GSFC
62-051A-01 EPE-B,Electrostatic Analyzer Wolfe
62-051A-02 EPE-B,Fluxgate Magnetometer Cahill
62-051A-03 EPE-B,Trapped Particles Van Allen
62-051A-04 EPE-B,C.R.Scint+DBL Scint Tele McDonald
62-051A-05 EPE-B,0.1-10 MeV Prtn Elect Scint Davis
62-051A-06 EPE-B,Solar Aspect Sensor Albus
62-051A-07 EPE-B,Electrolytic Timer Exp. Libby
62-051A-08 EPE-B,Solar Cell Damage Exp. Longanekr
Explorer 15 62-059A EPE-C 10/27/62 NASA-GSFC
62-059A-01 EPE-C,Electron Energy Distr Brown
62-059A-02 EPE-C,Omni+Dir(E/5,.5 P 40-110) McIlwain
62-059A-03 EPE-C,Angular Distribution Brown
62-059A-04 EPE-C,Comb. With 62-059A-02 McIlwain
62-059A-05 EPE-C,0.1-10MeV Prot+Elect Scint Davis
62-059A-06 EPE-C,Fluxgate Magnetometer Cahill
Explorer 16 62-070A S 55B 12/16/62 NASA-LARC
62-070A-01 S 55B,Pressurized Cells Gurtler
62-070A-02 S 55B,Grid Detectors Davison
62-070A-03 S 55B,Copper Wire Card Secretan
62-070A-04 S 55B,Micrometeorite Beswick
62-070A-05 S 55B,Cadium Sulphide Cell Secretan
Explorer 17 63-009A AE-A 04/03/63 NASA-GSFC
63-009A-01 AE-A,Mass Spectrometer Reber
63-009A-02 AE-A,Electrostatic Probes Brace
63-009A-03 AE-A,Pressure Gauge Newton
Explorer 18 63-046A IMP-A 11/27/63 NASA-GSFC
63-046A-01 IMP-A,Retard Potent Anal, E+P Serbu
63-046A-02 IMP-A,Fluxgate Magnetometer Ness
63-046A-03 IMP-A,C.R. Protons(R vs DE/DX) Simpson
63-046A-04 IMP-A,Cosmic Rays (E vs DE/DX) McDonald
63-046A-05 IMP-A,Energetic Particle Exp Anderson
63-046A-06 IMP-A,Electrostatic Analyzer Wolfe
63-046A-07 IMP-A,Faraday Cup Bridge
Explorer 19 63-053A AD-A 12/19/63 NASA-LARC
63-053A-01 AD-A,Nonsyst Changes Air Density Jacchia
63-053A-02 AD-A,Systematic Changes Air Den. Keating
Explorer 20 64-051A IE-A 08/25/64 NASA-NBS
64-051A-01 IE-A,Fixed Freq Ionosonde Knecht
64-051A-02 IE-A,Ion Probe Boyd
64-051A-03 IE-A,Cosmic Noise Stone
Explorer 21 64-060A IMP-B 10/04/64 NASA-GSFC
64-060A-01 IMP-B,Retard Potent Anal, E + P Serbu
64-060A-02 IMP-B,Fluxgate Magnetometer Ness
64-060A-03 IMP-B,C.R. Protons (R vs DE/DX) Simpson
64-060A-04 IMP-B,Cosmic Rays (E vs DE/DX) McDonald
64-060A-05 IMP-B,Total Ionization Experiment Anderson
64-060A-06 IMP-B,Electrostatic Analyzer Wolfe
64-060A-07 IMP-B,Faraday Cup Bridge
Explorer 22 64-064A BE-B 10/10/64 NASA-APL
64-064A-01 BE-B,RF Beacon Blumle
64-064A-02 BE-B,Langmuir Probe Brace
64-064A-03 BE-B,Laser Reflector Plotkin
64-064A-04 BE-B,US Navy Doppler Anderle
Explorer 23 64-074A S 55C 11/06/64 NASA-LARC
64-074A-01 S 55C,Pressurized Cells Gurtler
64-074A-02 S 55C,Impact Detectors Holden
64-074A-03 S 55C,Cadium Sulfide Cells Secretan
64-074A-04 S 55C,Capacity Detectors Siviter
Explorer 24 64-076A AD-B 11/21/64 NASA-LARC
64-076A-01 AD-B,Nonsyst Changes Air Density Jacchia
64-076A-02 AD-B,Systematic Changes Air Den. Keating
Explorer 25 64-076B Injun 4 11/21/64 SUI-GSFC
64-076B-01 Injun 4, See 64-076B Van Allen
64-076B-02 Injun 4,Retarding Potential Anal Sagalyn
64-076B-03 Injun 4,GM Detectors (7) Van Allen
64-076B-04 Injun 4,P-N Junction Detector Van Allen
64-076B-05 Injun 4,CDS Detector Van Allen
64-076B-06 Injun 4,Plastic Scintillators Van Allen
64-076B-07 Injun 4, Deleted Mag-JJB See Rmk Van Allen
Explorer 26 64-086A EPE-D 12/21/64 NASA-GSFC
64-086A-01 EPE-D,Charged Particle Brown
64-086A-02 EPE-D,Electron Proton McIlwain
64-086A-03 EPE-D,Magnetic Field Cahill
64-086A-04 EPE-D,0.1-10MeV Prot+Elec Scint Davis
64-086A-05 EPE-D,Solar Cell Damage Slifer
Explorer 27 65-032A BE-C 04/29/65 NASA-APL
65-032A-01 BE-C,RF Beacon Blumle
65-032A-02 BE-C,Langmuir Probe Brace
65-032A-03 BE-C,Laser Reflector Berbert
65-032A-04 BE-C,Navy Doppler Anderle
Explorer 28 65-042A IMP-C 05/29/65 NASA-GSFC
65-042A-01 IMP-C,Retard Potent Anal,E + P Serbu
65-042A-02 IMP-C,Magnetometers Ness
65-042A-03 IMP-C,C.R. Protons (R vs DE/DX) Simpson
65-042A-04 IMP-C,Cosmic Rays (E vs DE/DX) McDonald
65-042A-05 IMP-C,Total Ionization Exp Anderson
65-042A-06 IMP-C,Electrostatic Analyzer Wolfe
65-042A-07 IMP-C,Faraday Cup Bridge
Explorer 29 65-089A GEOS 1 11/06/65 NASA-OSSA
65-089A-01 GEOS 1,Optical Beacon System Williston
65-089A-02 GEOS 1,Laser Corner Reflector Plotkin
65-089A-03 GEOS 1,Doppler System Anderle
65-089A-04 GEOS 1,SECOR (US Army) McCall
65-089A-05 GEOS 1,NASA Range and Rate Berbert
65-089A-06 GEOS 1,NASA Minitrack Kohout
Explorer 30 65-093A SOLRAD 8 11/19/65 NASA-NRL
65-093A-01 SOLRAD 8,Solar Radiation Kreplin
Explorer 31 65-098B DME-A 11/29/65 NASA-APL
65-098B-01 DME-A,Thermal Ion Probe Maier
65-098B-02 DME-A,Cyl. Electrostatic Probes Brace
65-098B-03 DME-A,Electron Temperature Probe Willmore
65-098B-04 DME-A,Spherical Ion Mass Spectrom Willmore
65-098B-05 DME-A,Magnetic Ion Mass Spect Hoffman
65-098B-06 DME-A,Thermal Electron Probe Maier
65-098B-07 DME-A,Energetic Electron Curr Mon Maier
Explorer 32 66-044A AE-B 05/25/66 NASA-GSFC
66-044A-01 AE-B,RF Ion Mass Brinton
66-044A-02 AE-B,Neutral Mag Mass Spect Reber
66-044A-03 AE-B,Atmospheric Drag Jacchia
66-044A-04 AE-B,Redhead Ioniz Gauges Newton
66-044A-05 AE-B,Elect Temp and Density Brace
Explorer 33 66-058A IMP-D 07/01/66 NASA-GSFC
66-058A-01 IMP-D,Magnetometer Ness
66-058A-02 IMP-D,Retard Potent Anal, E+P Serbu
66-058A-03 IMP-D,3 Axis Fluxgate Magnetomtr Sonett
66-058A-04 IMP-D,Ion Chamber+Geiger Counter Anderson
66-058A-05 IMP-D,GM Cntr+Solid State Detect Van Allen
66-058A-06 IMP-D,Faraday Cup Bridge
66-058A-07 IMP-D,Solar Cell Damage Slifer
Explorer 34 67-051A IMP-F 05/24/67 NASA-GSFC
67-051A-01 IMP-F,Low Energy Telescope Brown
67-051A-02 IMP-F,Ion Chamber Anderson
67-051A-03 IMP-F,C.R. Proton (R vs DE/DX) Simpson
67-051A-04 IMP-F,LEPEDEA,Low Energy Particle Van Allen
67-051A-05 IMP-F,Cosmic Ray Anisotropy McCracken
67-051A-06 IMP-F,Electrostatic Analyzer Harrison
67-051A-07 IMP-F,Solar Proton Monitor Bostrom
67-051A-08 IMP-F,Elect Analyzer + V Select Ogilvie
67-051A-09 IMP-F,Low Energy Proton+Alpha Det McDonald
67-051A-10 IMP-F,Cosmic Rays (E vs DE/DX) McDonald
67-051A-11 IMP-F,Magnetic Field Experiment Ness
Explorer 35 67-070A IMP-E 07/19/67 NASA-GSFC
67-070A-01 IMP-E,GM Cntr + Solid State Det Van Allen
67-070A-02 IMP-E,Energetic Particle Flux Anderson
67-070A-03 IMP-E,3Axis Fluxgate Magnetometer Sonett
67-070A-04 IMP-E,Magnetometer Ness
67-070A-05 IMP-E,Micrometeorites Alexander
67-070A-06 IMP-E,Faraday Cup Bridge
67-070A-07 IMP-E,Retard Potential Anal, E+P Serbu
67-070A-08 IMP-E,Cislunar RF Beacon Peterson
67-070A-09 IMP-E,Selenodetic Studies Kaula
67-070A-10 IMP-E,Solar Cell Damage Slifer
Explorer 36 68-002A GEOS 2 01/11/68 NASA-APL
68-002A-01 GEOS 2,Optical Beacon System Williston
68-002A-02 GEOS 2,Laser Corner Reflector Plotkin
68-002A-03 GEOS 2,Navy Doppler System Anderle
68-002A-04 GEOS 2,US Army SECOR System McCall
68-002A-05 GEOS 2,Goddard RANDRR System Berbert
68-002A-06 GEOS 2,C-Band Radar System Stanley
68-002A-07 GEOS 2,NASA Minitrack Network Kohout
68-002A-08 GEOS 2,Precipitating Electrons Bostrom
68-002A-09 GEOS 2,Magnetometer Armstrong
Explorer 37 68-017A SOLRAD 9 03/05/68 USN
68-017A-01 SOLRAD 9,Solar Radiation Kreplin
Explorer 38 68-055A RAE-A 07/04/68 NASA-GSFC
68-055A-01 RAE-A,Radio Astronomy 9 Freq. V Stone
68-055A-02 RAE-A,Radio Bursts Receivers Stone
68-055A-03 RAE-A,Capacitance Probe Stone
68-055A-04 RAE-A,Impedance Probe Stone
68-055A-05 RAE-A,Electron Density Stone
Explorer 39 68-066A AD-C 08/08/68 NASA-LARC
68-066A-01 AD-C,Nonsyst Changes Air Density Jacchia
68-066A-02 AD-C,Systematic Changes Air Den. Keating
Explorer 40 68-066B Injun 5 08/08/68 SUI
68-066B-01 INJUN 5,L Engr Pr+El Diff En Anal Frank
68-066B-02 INJUN 5,VLF Receiver,30cps-16kc Gurnett
68-066B-03 INJUN 5,S.S. Det.(Proton,Elect) Van Allen
68-066B-04 INJUN 5,Spherical Ret. Pot. Anal. Sagalyn
68-066B-05 INJUN 5,Delet by JJB,See Remarks
68-066B-06 INJUN 5,Delet by JJB, See Remarks
Explorer 41 69-053A IMP-G 06/21/69 NASA-GSFC
69-053A-01 IMP-G,Low Energy Telescope Brown
69-053A-02 IMP-G,Ion Chamber Anderson
69-053A-03 IMP-G,Cos Ray Protons(R vs DE/DX) Simpson
69-053A-04 IMP-G,LEPEDEA,Low Ener Prot+Elect Frank
69-053A-05 IMP-G,Cosmic Ray Aniotropy McCracken
69-053A-06 IMP-G,Elect Anal (Rpl by 12+13) Harrison
69-053A-07 IMP-G,Solar Proton Monitor Bostrom
69-053A-08 IMP-G,Electrostatic Plasma Analy Ogilvie
69-053A-09 IMP-G,Low Energy Proton+Alpha Det McDonald
69-053A-10 IMP-G,Cosmic Rays (E vs DE/DX) McDonald
69-053A-11 IMP-G,Magnetic Field Experiment Ness
69-053A-12 IMP-G,Channeltron Particle Detect Anderson
69-053A-13 IMP-G,Second LEPEDEA Frank
Explorer 42 70-107A Uhuru 12/12/70 NASA-GSFC
70-107A-01 SAS-A,X-Ray All-Sky Survey Giacconi
Explorer 43 71-019A IMP-I 03/13/71 NASA-GSFC
71-019A-01 IMP-I,Three Axis Magnetometer Ness
71-019A-02 IMP-I,DC Electric Fields Aggson
71-019A-03 IMP-I,Iowa AC Elect+Mag Fields Gurnett
71-019A-04 IMP-I,Solar Plasma Elect Analyzer Ogilvie
71-019A-05 IMP-I,Elect + Proton,25eV-50KeV Frank
71-019A-06 IMP-I,GM Detector Proton+Electron Anderson
71-019A-07 IMP-I,Solar Proton Monitor Bostrom
71-019A-08 IMP-I,Cosmic Rays (E vs DE/DX) McDonald
71-019A-09 IMP-I,Cosmic Rays Nuclear Comp Simpson
71-019A-10 IMP-I,Solar Elect Scintillator Cline
71-019A-11 IMP-I,Plasma Bame
71-019A-12 IMP-I,Minn AC Elec + Mag Fields Kellog
71-019A-13 IMP-I,Michigan Radio Astronomy Haddock
71-019A-14 IMP-I,Deleted by CDW
71-019A-15 IMP-I,UMD/GSFC Radio Astronomy Erickson
71-019A-16 IMP-I,GSFC AC Electric Fields Aggson
71-019A-17 IMP-I,Project AC E+B Fields Gurnett
71-019A-18 IMP-I,Project Radio Astronomy Erickson
Explorer 44 71-058A SOLRAD 10 07/08/71 USN-NASA
71-058A-01 SOLRAD 10,Solar X-Ray UV Detect Kreplin
71-058A-02 SOLRAD 10,Stellar X-Ray Telescope Kreplin
Explorer 45 71-096A S-Cubed A 11/15/71 NASA-GSFC
71-096A-01 S-Cubed A,0.8-25KeV Ele+Prt Anal Hoffman
71-096A-02 S-Cubed A,25-872 KeV Prot+Alp Det Fritz
71-096A-03 S-Cubed A,35-400KeV Elect-SS Det Williams
71-096A-04 S-Cubed A,Fluxgate Magnetometers Cahill
71-096A-05 S-Cubed A,Search Coil Magnetom Cahill
71-096A-06 S-Cubed A,DC Electric Field Meas Maynard
71-096A-07 S-Cubed A,AC Electric Field Meas Gurnett
Explorer 46 72-061A Meteoroid Technology Sat 08/13/72 NASA-LARC
72-061A-01 Meteo.Tech.Sat.,Bumper Panels Humes
72-061A-02 Meteo.Tech.Sat.,Meteoroid Veloc Alvarez
72-061A-03 Meteo.Tech.Sat.,Impact Flux Alvarez
Explorer 47 72-073A IMP-H 09/23/72 NASA-GSFC
72-073A-01 IMP-H,Tri-Axis Magnetometer Ness
72-073A-02 IMP-H,Solar Plasma, Faraday Cup Bridge
72-073A-03 IMP-H,Solar Ions+Electron,100KeV Gloeckler
72-073A-04 IMP-H,LEPEDEA 25eV - 50KeV Frank
72-073A-05 IMP-H,Elect+Proton Tele gr 50KeV Williams
72-073A-06 IMP-H,Electrons+H+He Sld Stone
72-073A-07 IMP-H,Cosmic Ray Nclr Comp Simpson
72-073A-08 IMP-H,Particle Telescope+GM Tubes Krimigis
72-073A-09 IMP-H,Cosmic Rays(E vs DE/DX) McDonald
72-073A-10 IMP-H,Plasma Electro Analyzer Bame
72-073A-11 IMP-H,Plasma Wave Experiment Scarf
72-073A-12 IMP-H,Ion Composition Ogilvie
72-073A-13 IMP-H,Solar Electrons Cline
Explorer 48 72-091A SAS-B 11/15/72 NASA-GSFC
72-091A-01 SAS-B,Hi-Energy Gamma-Ray Tele Fichtel
Explorer 49 73-039A RAE-B 06/10/73 NASA-GSFC
73-039A-01 RAE-B,Radio Ast 9 Freq V Ant Stone
73-039A-02 RAE-B,Radio Burst Receiver Stone
73-039A-03 RAE-B,Impedance Probe Stone
Explorer 50 73-078A IMP-J 10/26/73 NASA-GSFC
73-078A-01 IMP-J,Tri-Axis Magnetometer Lepping
73-078A-02 IMP-J,Solar Plasma, Faraday Cup Lazarus
73-078A-03 IMP-J,Solar Ions+Electrons,100KeV Gloeckler
73-078A-04 IMP-J,Elect + Proton,25eV-50KeV Frank
73-078A-05 IMP-J,Elect + Proton, Tele Gr Williams
73-078A-06 IMP-J,Elec+H+He Solid St Tele Stone
73-078A-07 IMP-J,Cosmic Ray Nuclear Comp Simpson
73-078A-08 IMP-J,Particle Tele + GM Tubes Krimigis
73-078A-09 IMP-J,Cosmic Rays(E vs DE/DX) McDonald
73-078A-10 IMP-J,Plasma,Electro. Analyzer Bame
73-078A-11 IMP-J,DC Electric Fields Aggson
73-078A-12 IMP-J,AC Electric,Magnetic Fields Gurnett
Explorer 51 73-101A AE-C 12/16/73 NASA-GSFC
73-101A-01 AE-C,Cyl Electrostatic Probe(CEP) Brace
73-101A-02 AE-C,Tri-Axis Acc Sys (MESA) Champion
73-101A-03 AE-C,Photoelect. Sectrom (PES) Doering
73-101A-04 AE-C,Retard Potent Analyzer (RPA) Hanson
73-101A-05 AE-C,Extreme Sol UV Monitor(ESUM) Heath
73-101A-06 AE-C,Solar EUV Spectrometer(EUVS) Hinteregg
73-101A-07 AE-C,Open Source Spectrom (OSS) Nier
73-101A-08 AE-C,Neutral Atmos Comp Exp(NACE) Pelz
73-101A-09 AE-C,Neutral Atmos Temp Exp(NATE) Spencer
73-101A-10 AE-C,Mag Ion Mass Spectrom(MIMS) Hoffman
73-101A-11 AE-C,Bennett Ion Mass Spect(BIMS) Brinton
73-101A-12 AE-C,Low Energy Elect Exp (LEE) Hoffman
73-101A-13 AE-C,UV Nitric Oxide Exper (UVNO) Barth
73-101A-14 AE-C,Visible Airglow Exp (VAE) Hays
73-101A-15 AE-C,Cold Cathode Pres Gauge(PSB) Rice
73-101A-16 AE-C,Capac. Pressure Gauge (PSA) Rice
73-101A-17 AE-C,Magnetometer (MAG) Zmuda
73-101A-18 AE-C,Temperature Alarm (TAL) Caruso
Explorer 52 74-040A Hawkeye 1 06/03/74 NASA-LARC
74-040A-01 Hawkeye,Magnetometer Van Allen
74-040A-02 Hawkeye,LEPEDEA Frank
74-040A-03 Hawkeye,ELF-VLF Gurnett
Explorer 53 75-037A SAS-C 05/07/75 NASA-GSFC
75-037A-01 SAS-C,Extragalactic 1.5-10KeV Clark
75-037A-02 SAS-C,Scorpio Monitor 0.4-80KeV Clark
75-037A-03 SAS-C,Galactic Abs. 0.2-10KeV Clark
75-037A-04 SAS-C,Galactic Monitor 1.8-8KeV Clark
Explorer 54 75-096A AE-D 10/06/75 NASA-GSFC
75-096A-01 AE-D,Cyl Electrost Probe (CEP) Brace
75-096A-02 AE-D,Tri-Ax Acc System (MESA) Champion
75-096A-03 AE-D,Photoelect Spect (PES) Doering
75-096A-04 AE-D,Retard Potent Analyzer(RPA) Hanson
75-096A-06 AE-D,Solar EUV Spect (EUVS) Hinteregg
75-096A-07 AE-D,Open Source Spect (OSS) Nier
75-096A-08 AE-D,Neut Atmos Comp Exp (NACE) Hedin
75-096A-09 AE-D,Neut Atmos Temp Exp (NATE) Spencer
75-096A-10 AE-D,Mag Ion Mass Spect (MIMS) Hoffman
75-096A-11 AE-D,UV Nitric Oxide Exp(UVNO) Barth
75-096A-12 AE-D,Low Energy Electron Exp(LEE) Hoffman
75-096A-13 AE-D,Visible Airglow Exp (VAE) Hays
75-096A-14 AE-D,Capacitance Press Gauge(PSA) Rice
75-096A-15 AE-D,Cold Cath Press Gauge (PSB) Rice
75-096A-17 AE-D,Reflected Gas (MRMU) Scialdone
75-096A-18 AE-D,Plan Atmos Comp Test(PACT) Niemann
Explorer 55 75-107A AE-E 11/20/75 NASA-GSFC
75-107A-01 AE-E,CEP-Cyl Electrostatic Probe Brace
75-107A-02 AE-E,Tri-Axial Acc Sys (MESA) Champion
75-107A-03 AE-E,PES-Photoelect Spectrometer Doering
75-107A-04 AE-E,RPA-Retarding Potent Anal Hanson
75-107A-05 AE-E,Extrm Solar UV Monit(ESUM) Heath
75-107A-06 AE-E,Solar EUV Spect (EUVS) Hinteregg
75-107A-07 AE-E,Open Source Spectrom (OSS) Nier
75-107A-08 AE-E,Neut Atmos Comp Exp (NACE) Hedin
75-107A-09 AE-E,Neut Atmos Temp Exp (NATE) Spencer
75-107A-10 AE-E,Bennett Ion Mass Spec(BIMS) Brinton
75-107A-11 AE-E,Visible Airglow Exp (VAE) Hays
75-107A-12 AE-E,Capacitance Press Gauge(PSB) Rice
75-107A-13 AE-E,Cold Cath Press Gauge (PSA) Rice
75-107A-16 AE-E,Backscatter UV Spect (BUV) Heath
75-107A-17 AE-E,Temperature Alarm (TAL) Caruso
75-107A-18 AE-E,Radiation Damage Exp (CREM) Cliff
75-107A-19 AE-E,Ener Analyz Spec Test (EAST) Hoffman
Explorer 56 77-102A ISEE 1 10/22/77 NASA-GSFC
77-102A-01 ISEE 1,Fast Plasma & Sol Wind Ion Bame
77-102A-02 ISEE 1,Fast Electrons Ogilvie
77-102A-03 ISEE 1,Hot Plasma Frank
77-102A-04 ISEE 1,Fluxgate Magnetometer Russell
77-102A-05 ISEE 1,Low Energy Cosmic Rays Gloeckler
77-102A-06 ISEE 1,Quasi-Static Electric Fld Cattell
77-102A-07 ISEE 1,Plasma Waves Gurnett
77-102A-08 ISEE 1,Plasma Density Harvey
77-102A-09 ISEE 1,Energetic Elect & Protons Williams
77-102A-10 ISEE 1,Electrons and Protons Anderson
77-102A-11 ISEE 1,DC Electric Fields-GSFC Heppner
77-102A-12 ISEE 1,Ion Composition Lennartss
77-102A-13 ISEE 1,VLF Wave Propagation Helliwell
77-102A-14 ISEE 1,Gamma-Ray Bursts Cline
Explorer 57 78-012A IUE 01/26/78 NASA-ESA
78-012A-01 IUE,Ultraviolet Spectrograph NASA-GSFC
78-012A-02 IUE,Particle Flux Monitor Bostrom
Explorer 58 78-041A HCMM 04/26/78 NASA-OA
78-041A-01 HCMM,Radiometer (HCMR) Barnes
Explorer 59 78-079A ISEE 3 08/12/78 NASA-GSFC
78-079A-01 ISEE 3,Solar Wind Plasma Gosling
78-079A-02 ISEE 3,Magnetic Fields Smith
78-079A-03 ISEE 3,Low-Energy Cosmic Rays Gloeckler
78-079A-04 ISEE 3,Med Energy Cosmic Rays Von Rosen
78-079A-05 ISEE 3,Hi Energy Cosmic Rays Wiedenbec
78-079A-06 ISEE 3,Cosmic Ray Electrns,Nuclei Evenson
78-079A-07 ISEE 3,Plasma Waves Greenstad
78-079A-08 ISEE 3,Energetic Protons Hynds
78-079A-09 ISEE 3,Intplan & Solar Electrons Anderson
78-079A-10 ISEE 3,Radio Mapping Steinberg
78-079A-11 ISEE 3,Solar Wind Ion Composition Ogilvie
78-079A-12 ISEE 3,High-Energy Cosmic Rays Stone
78-079A-13 ISEE 3,Ground Based Solar Studies Wilcox
78-079A-14 ISEE 3,X- and Gamma-Ray Bursts Anderson
78-079A-15 ISEE 3,Gamma-Ray Bursts Teegarden
Explorer 60 79-013A SAGE 02/18/79 NASA-OA
79-013A-01 SAGE,Strat Aero & Gas Exper McCormick
Explorer 61 79-094A Magsat 10/30/79 NASA-GSFC
79-094A-01 Magsat,Scalar Magnetometer Langel
79-094A-02 Magsat,Vector Magnetometer Langel
Explorer 62 81-070A Dynamics Explorer 1 08/03/81 NASA-GSFC
81-070A-01 DE 1,Magnetic Field Obs(MAG-A) Sugiura
81-070A-02 DE 1,Plasma Wave Instrument(PWI) Shawhan
81-070A-03 DE 1,Spin Scan Auror Imager(SAI) Frank
81-070A-04 DE 1,Retard Ion Mass Spec(RIMS) Chappell
81-070A-05 DE 1,Hi Alt Plasma Instrum(HAPI) Burch
81-070A-06 DE 1,Energet Ion Comp Spec(EICS) Shelley
81-070A-07 DE 1,Auroral Physics Investig Maggs
81-070A-08 DE 1,Cont&Nat Wave-Part Interact Helliwell
Explorer 63 81-070B Dynamics Explorer 2 08/03/81 NASA-GSFC
81-070B-01 DE 2,Magnetic Field Obs(MAG-B) Sugiura
81-070B-02 DE 2,Vector E Field Instr(VEFI) Maynard
81-070B-03 DE 2,Neut Atmos Comp Spect(NACS) Carignan
81-070B-04 DE 2,Wind & Temp Spectrom(WATS) Spencer
81-070B-05 DE 2,Fabry-Perot Interfer(FPI) Hays
81-070B-06 DE 2,Ion Drift Meter (IDM) Heelis
81-070B-07 DE 2,Retarding Poten Analyz(RPA) Hanson
81-070B-08 DE 2,Low Alt Plasma Instr(LAPI) Winningha
81-070B-09 DE 2,Langmuir Probe Instr(LANG) Brace
81-070B-10 DE 2,Magnet Ener Coupling to Atm Nagy
81-070B-11 DE 2,Neut-Plasma Interact Invest Roble
81-070B-12 DE 2,Atmos Dynam and Energet Inv Mayr
81-070B-13 DE 2,Low Alt Plas Invest-Hi Resol Hoffman
Explorer 64 81-100A SME 10/06/81 NASA-OSS
81-100A-01 SME,Limb View UV Ozone Spect Barth
81-100A-02 SME,Infrared Radiometer Barth
81-100A-03 SME,Near IR(1.27-Mircon)Spectrom Barth
81-100A-04 SME,Visible Nitrogen Dioxide Barth
81-100A-05 SME,Solar UV Monitor Barth
81-100A-06 SME,Solar Proton Alarm Barth
Explorer 65 84-088A AMPTE/CCE 08/16/84 NASA-GSFC
84-088A-01 AMPTE/CCE,Hot Plasma Composition Shelley
84-088A-02 AMPTE/CCE,Med Energy Part Analyz McEntire
84-088A-03 AMPTE/CCE,Charge-E-Mass Spectrom Gloeckler
84-088A-04 AMPTE/CCE,Plasma Wave Experiment Scarf
84-088A-05 AMPTE/CCE,CCE Magnetometer Potemra
Explorer 66 89-089A Cosmic Background Explor 11/18/89 NASA-GSFC
89-089A-01 COBE,Far IR Absolute Spectrophot Mather
89-089A-02 COBE,Diffuse IR Background Exper Hauser
89-089A-03 COBE,Differential Microwave Radio Smoot
Explorer 67 92-031A EUVE 06/07/92 NASA
92-031A-01 EUVE,EUV Full-Sky Survey Bowyer
92-031A-02 EUVE,EUV Deep-Sky survey Bowyer
Explorer 68 92-038A SAMPEX 07/03/92 NASA-GSFC
92-038A-01 SAMPEX,Low-E Ion Comp Anal(LICA) Mason
92-038A-02 SAMPEX,Heavy Ion Large Tele(HILT) Klecker
92-038A-03 SAMPEX,Mass Spect Telescope(MAST) Mewaldt
92-038A-04 SAMPEX,Proton,Electron Telescope Mewaldt
Explorer 69 95-074A X-Ray Timing Explorer 12/30/95 NASA-GSFC
95-074A-01 XTE,X-Ray Sky Monitor Bradt
95-074A-02 XTE,Large Area X-Ray Prop Counter Holt
95-074A-03 XTE,High Energy X-Ray Timing Rothschil
Explorer 70 96-049A FAST 08/21/96 NASA-GSFC
96-049A-01 FAST,ESA;Electrostatic Analyzers Carlson
96-049A-02 FAST,TEAMS;E Mass Ang Spectrogph Carlson
96-049A-03 FAST,EFLP;E-Field Lang Probe Exp Carlson
96-049A-04 FAST,3-Ax Flxgt+srch Coil Magntom Carlson
Explorer 71 97-045A Advanced Composition Exp. 08/25/97 NASA-OSS
97-045A-01 ACE,Solar Wind Ion Mass Spectrom. Gloeckler
97-045A-02 ACE,Solar Wind Ion Comp.Spectrom. Gloeckler
97-045A-03 ACE,Ultra-Lo-E Isotope Spectrom. Gold
97-045A-04 ACE,Sol Enrg Part Ion Chrg Analyz Moebius
97-045A-05 ACE,Solar Isotope Spectrometer Cummings
97-045A-06 ACE,Cosmic Ray Isotope Spectrom. Cummings
97-045A-07 ACE,SW Electrn,Protn&Alpha Monitr McComas
97-045A-08 ACE,Enrg.Elect,Protn,Alpha Monitr Gold
97-045A-09 ACE,Magnetometer Ness
97-045A-10 ACE,Real Time Solar Wind - NOAA Zwickl
Explorer 72 98-012A SNOE 02/26/98 US
98-012A-01 SNOE,UVS,UV Spectrometer Solomon
98-012A-02 SNOE,Auroral Photometer (AP) Solomon
98-012A-03 SNOE,SXP,Solar X-Ray, 0.2-3.5A Solomon
Explorer 73 98-020A TRACE 04/02/98 NASA-GSFC
98-020A-01 TRACE Imaging Telescope Title
Explorer 74 98-071A SWAS 12/06/98 NASA-GSFC
98-071A-01 SWAS,Submillimeter Wave Telescope Melnick
Explorer 75 99-011A WIRE, Failed 03/05/99 NASA-GSFC
99-011A-01 WIRE Telescope Hacking
Explorer 76 99-026A TERRIERS, Failed 05/18/99 BOSTON U
Explorer 77 99-035A FUSE 06/23/99 JHU-ANU
99-035A-01 Far Ultraviolet Spectroscopy Moos
Explorer 78 00-017A IMAGE 03/25/00 NASA-GSFC
00-017A-01 IMAGE, Radio Plasma Imager (RPI) Burch
00-017A-02 IMAGE, Low-Energy Neut Atom(LENA) Burch
00-017A-03 IMAGE, Med-Energy Neut Atom(MENA) Burch
00-017A-04 IMAGE, Hi-Energy Neut Atom (HENA) Burch
00-017A-05 IMAGE, Far UV Imager (FUV) Burch
00-017A-06 IMAGE, Extreme UV Imager (EUV) Burch
If you would like further information on NASA's Explorer missions or on
a specific Explorer, you may wish to query the NSSDC Master Catalog by
typing in a name in the space below.
Curator:
Ed Bell, ed.bell@gsfc.nasa.gov, +1-301-286-1187
Code 633, NASA Goddard Space Flight Center
Greenbelt, MD 20771, USA