Aeronautics and Space Report of the President FY 1995 Activities


Appendix A-1

U.S. Government Spacecraft Record

(Includes spacecraft from cooperating countries launched by U.S. launch vehicles.)

Calendar Year Earth Orbita Earth Escapea

Success Failure Success Failure
1957 0 1 0 0
1958 5 8 0 4
1959 9 9 1 2
1960 16 12 1 2
1961 35 12 0 2
1962 55 12 4 1
1963 62 11 0 0
1964 69 8 4 0
1965 93 7 4 1
1966 94 12 7 1b
1967 78 4 10 0
1968 61 15 3 0
1969 58 1 8 1
1970 36 1 3 0
1971 45 2 8 1
1972 33 2 8 0
1973 23 2 3 0
1974 27 2 1 0
1975 30 4 4 0
1976 33 0 1 0
1977 27 2 2 0
1978 34 2 7 0
1979 18 0 0 0
1980 16 4 0 0
1981 20 1 0 0
1982 21 0 0 0
1983 31 0 0 0
1984 35 3 0 0
1985 37 1 0 0
1986 11 4 0 0
1987 9 1 0 0
1988 16 1 0 0
1989 24 0 2 0
1990 40 0 1 0
1991 32c 0 0 0
1992 26c 0 1 0
1993 28c 1 1 0
1994 31c 1 1 0
1995 17c,d 1 0 0
(through September 30, 1995)
TOTAL 1,335 147 85 15

a The criterion of success or failure used is attainment of Earth orbit or Earth escape rather than judgment of mission success. "Escape" flights include all that were intended to go to at least an altitude equal to lunar distance from the Earth.

b This Earth-escape failure did attain Earth orbit and, therefore, is included in the Earth-orbit success totals.

c This excludes commercial satellites. It counts separately spacecraft launched by the same launch vehicle.

d This counts the five orbital debris radar calibration spheres that were launched from STS-63 as one set of spacecraft.


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Curator: Lillian Gipson
Last Updated: September 5, 1996
For more information contact Steve Garber, NASA History Office,
sgarber@hq.nasa.gov