List of Explorers Program missions

Last updated July 10, 2021

This is a list of missions and spacecraft of the NASA Explorers Program. This list was originally based on data from the NSSDC master catalog listing. This does not include Missions of Opportunity (MO), but does include some spacecraft with launch failures or were canceled.

**Explorers missions**
Spacecraft Name	Explorers #	NSSDC ID	Launch Date	Launch Vehicle
ACE	Explorer 71	1997-045A	1997-08-25	Delta II 7920
AIM	Explorer 90	2007-015A	2007-04-25	Pegasus XL
AD-A	Explorer 19	1963-053A	1963-12-19	Scout
AD-B	Explorer 24	1964-076A	1964-11-21	Scout
AD-C	Explorer 39	1968-066A	1968-08-08	Scout
AE-A	Explorer 17	1963-009A	1963-04-03	Thor-Delta
AE-B	Explorer 32	1966-044A	1966-05-25	Delta
AE-C	Explorer 51	1973-101A	1973-12-16	Delta
AE-D	Explorer 54	1975-096A	1975-10-06	Delta
AE-E	Explorer 55	1975-107A	1975-11-20	Delta
AMPTE/CCE	Explorer 65	1984-088A	1984-08-16	Delta
BE-B	Explorer 22	1964-064A	1964-10-10	Scout
BE-C	Explorer 27	1965-032A	1965-04-29	Scout
CHIPS	Explorer 82	2003-002B	2003-01-13	Delta II
COBE	Explorer 66	1989-089A	1989-11-18	Delta
DADE-A	-	-	1975-12-06	Scout
DADE-B	-	-	1975-12-06	Scout
DME-A	Explorer 31	1965-098B	1965-11-29	Thor-Agena B
Dynamics Explorer 1	Explorer 62	1981-070A	1981-08-03	Delta
Dynamics Explorer 2	Explorer 63	1981-070B	1981-08-03	Delta
EUVE	Explorer 67	1992-031A	1992-06-07	Delta II
Explorer 1	Explorer 1	1958-001A	1958-02-01	Jupiter C (Juno I)
Explorer 2	Explorer 2	EXPLR2	1958-03-05	Jupiter C (Juno I)
Explorer 3	Explorer 3	1958-003A	1958-03-26	Juno
Explorer 4	Explorer 4	1958-005A	1958-07-26	Juno
Explorer 5	Explorer 5	EXPLR5	1958-08-24	Jupiter C (Juno I)
Explorer 6	Explorer 6	1959-004A	1959-08-07	Thor-Able
Explorer 7	Explorer 7	1959-009A	1959-10-13	Juno
Explorer 7X	Explorer 7x	EXP-7X	1959-07-16	Juno 2 (Juno II)
Explorer 8	Explorer 8	1960-014A	1960-11-03	Juno
Explorer 9	Explorer 9	1961-004A	1961-02-16	Scout
Explorer 12	Explorer 12	1961-020A	1961-08-16	Thor-Delta
Explorer 14	Explorer 14	1962-051A	1962-10-02	Thor-Delta
Explorer 15	Explorer 15	1962-059A	1962-10-27	Thor-Delta
Explorer 26	Explorer 26	1964-086A	1964-12-21	Delta
Explorer 33	Explorer 33	1966-058A	1966-07-01	Delta
Explorer 35	Explorer 35	1967-070A	1967-07-19	Delta
Explorer S45	Explorer S45	EXS-451	1961-02-24	Juno
Explorer S45A	Explorer S45A	EXS-452	1961-05-24	Juno 2 (Juno II)
Explorer S55	Explorer S55	EXS-55	1961-06-30	Scout
FAST	Explorer 70	1996-049A	1996-08-21	Pegasus XL
FUSE	Explorer 77	1999-035A	1999-06-24	Delta II 7320
GALEX	Explorer 83	2003-017A	2003-04-28	Pegasus XL
GEOS 1	Explorer 29	1965-089A	1965-11-06	Delta
GEOS 2	Explorer 36	1968-002A	1968-01-11	Delta
Hawkeye 1	Explorer 52	1974-040A	1974-06-03	Scout
HCMM	Explorer 58	1978-041A	1978-04-26	Scout-F
HETE 2	Explorer 79	2000-061A	2000-10-09	Pegasus
IBEX	Explorer 91	2008-051A	2008-10-19	Pegasus XL
IE-A	Explorer 20	1964-051A	1964-08-25	Scout
IMAGE	Explorer 78	2000-017A	2000-03-25	Delta II 7326
IMP-A	Explorer 18	1963-046A	1963-11-27	Thor-Delta
IMP-B	Explorer 21	1964-060A	1964-10-04	Delta
IMP-C	Explorer 28	1965-042A	1965-05-29	Delta
IMP-F	Explorer 34	1967-051A	1967-05-24	Delta
IMP-G	Explorer 41	1969-053A	1969-06-21	Delta
IMP-H	Explorer 47	1972-073A	1972-09-23	Delta
IMP-I	Explorer 43	1971-019A	1971-03-13	Delta
IMP-J	Explorer 50	1973-078A	1973-10-26	Delta
Injun 4	Explorer 25	1964-076B	1964-11-21	Scout
Injun 5	Explorer 40	1968-066B	1968-08-08	Scout
IRIS	Explorer 94	2013-033A	2013-06-27	Pegasus XL
ISEE 1	Explorer 56	1977-102A	1977-10-22	Delta
ISEE 3	Explorer 59	1978-079A	1978-08-12	Delta
IUE	Explorer 57	1978-012A	1978-01-26	Delta
Magnetic Storm Satellite (cancelled)	Explorer-A	MSS-A	—	—
Magsat	Explorer 61	1979-094A	1979-10-30	Scout
Meteoroid Technology Satellite	Explorer 46	1972-061A	1972-08-13	Scout
NuSTAR	Explorer 93	2012-031A	2012-06-13	Pegasus XL
P 14	Explorer 10	1961-010A	1961-03-25	Thor-Delta
RAE-A	Explorer 38	1968-055A	1968-07-04	Delta
RAE-B	Explorer 49	1973-039A	1973-06-10	Delta
RHESSI	Explorer 81	2002-004A	2002-02-05	Pegasus XL
S 15	Explorer 11	1961-013A	1961-04-27	Juno
S 46A	Explorer S-46	EXS-46	1960-03-23	Juno 2 (Juno II)
S 55A	Explorer 13	1961-022A	1961-08-25	Scout
S 55B	Explorer 16	1962-070A	1962-12-16	Scout
S 55C	Explorer 23	1964-074A	1964-11-06	Scout
S 56	Explorer S-56	EXS-56	1960-12-04	Scout
S-66A	-	-	1964-03-19	Delta B
S-Cubed A	Explorer 45	1971-096A	1971-11-15	Scout
SAGE	Explorer 60	1979-013A	1979-02-18	Scout
SAMPEX	Explorer 68	1992-038A	1992-07-03	Scout
SAS-B	Explorer 48	1972-091A	1972-11-15	Scout
SAS-C	Explorer 53	1975-037A	1975-05-07	Scout
SME	Explorer 64	1981-100A	1981-10-06	Delta
SNOE	Explorer 72	1998-012A	1998-02-26	Pegasus XL
SOLRAD 8	Explorer 30	1965-093A	1965-11-19	Scout
SOLRAD 9	Explorer 37	1968-017A	1968-03-05	Scout
SOLRAD 10	Explorer 44	1971-058A	1971-07-08	Scout
SWAS	Explorer 74	1998-071A	1998-12-06	Pegasus XL
Swift	Explorer 84	2004-047A	2004-11-20	Delta II
TERRIERS	Explorer 76	1999-026A	1999-05-18	Pegasus
THEMIS-A	Explorer 85	2007-004A	2007-02-17	Delta II 7925
THEMIS-B	Explorer 86	2007-004B	2007-02-17	Delta II 7925
THEMIS-C	Explorer 87	2007-004C	2007-02-17	Delta II 7925
THEMIS-D	Explorer 88	2007-004D	2007-02-17	Delta II 7925
THEMIS-E	Explorer 89	2007-004E	2007-02-17	Delta II 7925
TRACE	Explorer 73	1998-020A	1998-04-02	Pegasus XL
TESS	Explorer 95	2018-038A	2018-04-18	Falcon 9
Uhuru	Explorer 42	1970-107A	1970-12-12	Scout
WIRE	Explorer 75	1999-011A	1999-03-05	Pegasus XL
WISE	Explorer 92	2009-071A	2009-12-14	Delta II
WMAP	Explorer 80	2001-027A	2001-06-30	Delta II
X-Ray Timing Explorer	Explorer 69	1995-074A	1995-12-30	Delta II 7920

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References

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