Explorer-1

Explorer-series
reference images

Explorer-93
Explorer-1Explorer-93

This page contains reference images for Explorer-series satellites. If readers know of additional information or images, please contact the authors using the e-mail addresses at the bottom of this page.

Launch information
(found elsewhere)
Reference images
(immediately below)
Launch covers
(including anniversary-of-launch covers, and launch-related event covers)
(found elsewhere)
Other postal items
(stamps, souvenir sheets, aerogrammes, postal cards, etc.)
(found elsewhere)
Explorer Explorer Explorer-1 Explorer-1
Explorer (except Explorer-1) Explorer (except Explorer-1)


Satellite(s)Launch Date(s)Reference Image(s)
Explorer
Explorer-1
Explorer-2 [failed]
Explorer-3
1958-01-31
1958-03-05
1958-03-26
Explorer-1
Explorer-1
Explorer-1
Explorer-4
Explorer-5 [failed]
1958-07-26
1958-08-24
Explorer-4
Explorer-S1 / Explorer-7X [failed]
Explorer-7 (S1A)
1959-07-16
1959-10-13
Explorer-7
Explorer-7
Explorer-7
Explorer-6 (S2) (like Pioneer-5)11959-08-07Explorer-6
Explorer-6
Explorer-6
Explorer-6
Explorer-S46 [failed]1960-03-23Explorer-S46
Explorer-8 (S30)1960-11-03Explorer-8
Explorer-8
Explorer-S56 [failed]
Explorer-9 (S56A)
Explorer-19 (ADE-A, S56B)
Explorer-24 (ADE-B, S56C)
Explorer-39 (ADE-C)
1960-12-04
1961-02-16
1963-12-19
1964-11-21
1968-08-08
Explorer-24
Explorer-S45 [failed]
Explorer-S45A [failed]
1961-02-24
1961-05-24
Explorer-S45
Explorer-S45
Explorer-S45
Explorer-10 (P14)1961-03-25Explorer-10
Explorer-10
Explorer-11 (S15)1961-04-27Explorer-11
Explorer-11
Explorer-S55 [failed]
Explorer-13 (S55A)
Explorer-16 (S55B)
Explorer-23 (S55C)
1961-06-30
1961-08-25
1962-12-16
1964-11-06
Explorer-13
Explorer-13
Explorer-12 (EPE-A, S3)
Explorer-14 (EPE-B, S3A)
Explorer-15 (EPE-C, S3B)
Explorer-26 (EPE-D)
1961-08-16
1962-10-02
1962-10-29
1964-12-21
Explorer-12
Explorer-17 (AE-A, S6)1963-04-03Explorer-17
Explorer-18 / IMP-1 (IMP-A)
Explorer-21 / IMP-2 (IMP-B)
Explorer-28 / IMP-3 (IMP-C)
1963-11-27
1964-10-04
1965-05-29
Explorer-18
Explorer-18/21 type
Explorer-21
Explorer-S66 (BE-A) [failed]
Explorer-22 (S66A, BE-B)
Explorer-27 (BE-C)
1964-03-19
1964-10-09
1965-04-29
Explorer-22
Explorer-27
Explorer-20 (IE-A, S48, Topsi)1964-08-25Explorer-20
Explorer-25 (IE-B) / Injun-41964-11-21Explorer-25
Explorer-25
Explorer-24+25
Explorer-29 / GEOS-1 (GEOS-A)
Explorer-36 / GEOS-2 (GEOS-B)
1965-11-06
1968-01-11
Explorer-29
Explorer-29
Explorer-30 (SE-A) / SolRad-81965-11-19Explorer-30
Explorer-31 (DME-A) / ISIS-X1965-11-28Explorer-31
Explorer-32 (AE-B)1966-05-25Explorer-32
Explorer-33 / AIMP-1 (IMP-D)
Explorer-35 / AIMP-2 (IMP-E)
1966-07-01
1967-07-19
Explorer-33
Explorer-35
Explorer-33/35 type
Explorer-34 / IMP-4 (IMP-F)
Explorer-41 / IMP-5 (IMP-G)
1967-05-24
1969-06-21
Explorer-34
Explorer-41
Explorer-37 (SE-B) / SolRad-91968-03-05Explorer-37
Explorer-38 / RAE-1 (RAE-A)
Explorer-49 / RAE-2 (RAE-B)
1968-07-04
1973-06-10
Explorer-38
Explorer-38/49 type
Explorer-38/49 type
Explorer-49
Explorer-49
Explorer-40 (IE-C) / Injun-51968-08-08Explorer-40
Explorer-40
Explorer-42 (SAS-A) / Uhuru1970-12-12Explorer-42
Explorer-42
Explorer-43 / IMP-6 (IMP-I)
Explorer-47 / IMP-7 (IMP-H)
Explorer-50 / IMP-8 (IMP-J)
1971-03-13
1972-09-22
1973-10-26
Explorer-43
Explorer-50
Explorer-50
Explorer-44 (SE-C) / SolRad-101971-07-09Explorer-44
Explorer-45 (SSS-A / S-Cubed-A)1971-11-15Explorer-45
Explorer-46 / MTS1972-08-14Explorer-46
Explorer-48 (SAS-B)1972-11-15Explorer-48
Explorer-48
Explorer-51 (AE-C)
Explorer-54 (AE-D)
Explorer-55 (AE-E)
1973-12-16
1975-10-06
1975-11-20
Explorer-51
Explorer-54
Explorer-52 (IE-D) / Hawkeye / Injun-61974-06-03Explorer-52
Explorer-53 (SAS-C)1975-05-07Explorer-53
Explorer: DAD-A (DADE-A), DAD-B (DADE-B) [failed]1975-12-05DAD-A
Explorer-56 / ISEE-1 (ISEE-A)1977-10-25ISEE-1
ISEE-1
ISEE-1/2
Explorer-57 (SAS-D) / IUE1978-01-26Explorer-57
Explorer-57
Explorer-58 / HCMM / AEM-1 (AEM-A)1978-04-26Explorer-58
Explorer-58/60 type
Explorer-59 / ISEE-3 (ISEE-C) / ICE21978-08-14ISEE-3
ISEE-3
ISEE-3
Explorer-60 / SAGE / AEM-2 (AEM-B)1979-02-18Explorer-60
Explorer-58/60 type
Explorer-61 / MagSat1979-10-30Explorer-61
Explorer-61
Explorer-62 (DE-1)
Explorer-63 (DE-2)
1981-08-03
1981-08-03
Explorer-62/63 type
Explorer-62/63 type
Explorer-64 / SME1981-10-06Explorer-64
Explorer-64
Explorer-65 / AMPTE (CCE, IRM, UKS)1984-08-16Explorer-65
Explorer-65 (UKS)
Explorer-66 / COBE1989-11-18COBE(patch, early-design)3
Explorer-66(early-design)3
Explorer-66(final-design)3
Explorer-66(final-design)3
Explorer-67 / EUVE1992-06-07Explorer-67
Explorer-67
Explorer-68 / SMEX-1 / SAMPEX1992-07-03Explorer-68
Explorer-68
Explorer-69 / XTE / RXTE1995-12-30Explorer-69
Explorer-69
Explorer-70 / SMEX-2 / FAST1996-08-21Explorer-70
Explorer-70
Explorer-71 / ACE1997-08-25Explorer-71
Explorer-71
Explorer-71
Explorer-72 / STEDI-1 / SNOE1998-02-26Explorer-72
Explorer-73 / SMEX-4 / TRACE1998-04-02Explorer-73
Explorer-74 / SMEX-3 / SWAS1998-12-06Explorer-74
Explorer-74
Explorer-75 / SMEX-5 / WIRE [failed]1999-03-05Explorer-75
Explorer-76 / STEDI-2 / TERRIERS [failed]1999-05-18Explorer-76
Explorer-77 / MIDEX-0 / FUSE1999-06-23Explorer-77
Explorer-77
Explorer-78 / MIDEX-1 / IMAGE2000-03-25Explorer-78
Explorer-79 / HETE-22000-10-09Explorer-79
Explorer-80 / MIDEX-2 / MAP / WMAP2001-06-30Explorer-80
Explorer-81 / SMEX-6 / HESSI / RHESSI2002-02-05Explorer-81
Explorer-81
Explorer-82 / UNEX-1 / CHIPSat2003-01-12Explorer-82
Explorer-83 / SMEX-7 / GALEX2003-04-28Explorer-83
Explorer-84 / MIDEX-3 / Swift2004-11-20Explorer-84
Explorer-85/89 / MIDEX-5A/5E / THEMIS-A/E2007-02-17Explorer-85/89 type
Explorer-90 / SMEX-9 / AIM2007-04-25Explorer-90
Explorer-91 / SMEX-10 / IBEX2008-10-19Explorer-91
Explorer-92 / MIDEX-6 / WISE / NGSS / NEOWISE2009-12-14Explorer-92
Explorer-93 / SMEX-11 / NuSTAR2012-06-13Explorer-93

1Explorer-6 and Pioneer-5 were similar "paddlewheel" satellites. It is believed that Explorer-6 contained two short antennas on its "top", whereas Pioneer-5 contained only a single short antenna. When there are no antennas on top, the distinction is unclear, but of the two, Pioneer-5 is assumed.
2Explorer-59 / ISEE-3 was renamed ICE in 1983.
3COBE (early-design) was intended for Space Shuttle launch; COBE (final-design) was intended for rocket launch.



Back to Explorer-series satellites.
Back to Scientific/research satellites.
Back to Un-Manned Satellite Philately.



Copyright © 2013-2019, Colorado State University. All rights reserved.
This Website created and maintained by Don Hillger and Garry Toth.
Updated: 2019-03-03