Instrumentation and Data Analysis Experience
- Pioneer 3 (experimenter)
- Pioneer 4 (experimenter)
- Ranger 1 (experimenter)
- S-46 (experimenter)
- Ranger 2 (experimenter)
- Traac (experimenter)
- Injun 1 (experimenter)
- Mariner A (experimenter)
- Discoverer 1132 (experimenter)
- Discoverer 1134 (experimenter)
- Injun 2 (experimenter)
- Mariner 2 (experimenter)
- Explorer 12 (experimenter)
- Injun 3 (experimenter)
- Explorer 14 (experimenter)
- Mariner 4 (experimenter)
- Injun-Explorer 4 (experimenter)
- OGO 1 (co-investigator)
- OGO 2 (co-investigator)
- IMPS D and E (experimenter)
- OGO 3 (co-investigator)
- OGO 4 (principal investigator, plasma instrument)
- IMP 4 (principal investigator)
- IMP 5 (principal investigator, LEPEDEA and Solar Wind Detector)
- Injun-Explorer 5 (principal investigator, plasma instruments)
- Mariner/Venus 1967 (co-investigator)
- OGO 5 (principal investigator)
- IMP 6 (principal investigator)
- IMP 7 (principal investigator)
- IMP 8 (principal investigator)
- Hawkeye (principal investigator, plasma instrument)
- Ariel 4 (principal investigator)
- Pioneers 10 and 11 (co-investigator)
- ISEEs 1 and 2 (principal investigator)
- Dynamics Explorer (principal investigator)
- Galileo (principal investigator)
- Plasma Diagnostics Package for Spacelab 2 (principal investigator)
- Geotail/ISTP Program (principal investigator, plasma instrument)
- Polar/ISTP Program (principal investigator, visible imaging instrument)
Performance History
The flight histories of the Plasma Analyzers and Imaging Instrumentation
are as follows:
Satellite: OGO 3
Launch Date: 7 June 1966
Number of Instruments: 2 LEPEDEAs
Period of Operation: 9 June 1966 to 25 May 1967
Comments: First LEPEDEA flown on a satellite; inoperative
after 23 May 1967 due to thermal problem
Satellite: IMP 4
Launch Date: 24 May 1967
Number of Instruments: 1 LEPEDEA
Period of Operation: 26 May 1967 to 3 May 1969
Comments: Spacecraft entry into Earth's atmosphere on 3 May 1969
Satellite: OGO 4
Launch Date: 28 July 1967
Number of Instruments: 1 LEPEDEA
Period of Operation: 30 July 1967 to May 1970
Comments: Experiment was deactivated with cessation of
spacecraft activities
Satellite: OGO 5
Launch Date: 4 March 1968
Number of Instruments: 2 LEPEDEAs
Period of Operation: 8 March 1968 to 12 March 1968
Comments: Experiment inoperative due to low-voltage power
supply failure unrelated to high-voltage supplies
Satellite: Injun 5 (A)
Launch Date: 8 August 1968
Number of Instruments: 1 LEPEDEA
Period of Operation: 12 August 1968 to 30 May 1970
Comments: Cessation of spacecraft operations on 30 May 1970
Satellite: Injun 5 (B)
Launch Date: 8 August 1968
Number of Instruments: 1 LEPEDEA
Period of Operation: 12 August 1968 to 30 May 1970
Comments: Cessation of spacecraft operations on 30 May 1970
Satellite: Injun 5 (C)
Launch Date: 8 August 1968
Number of Instruments: 1 LEPEDEA
Period of Operation: 12 August 1968 to 21 September 1968
Comments: Operation terminated when spacecraft power buffer
circuit failed and bus voltage was unavailable at
instrument-spacecraft connector
Satellite: IMP 5 (S1)
Launch Date: 21 June 1969
Number of Instruments: 1 LEPEDEA
Period of Operation: 24 June 1969 to 23 December 1972
Comments: Spacecraft entry into Earth's atmosphere on 23
December 1972
Satellite: IMP 5 (S2)
Launch Date: 21 June 1969
Number of Instruments: 1 LEPEDEA
Period of Operation: 24 June 1969 to 10 August 1969
Comments: Modified LEPEDEA integrated with U. of C. Berkeley
experiment; failure possibly related to immediate
malfunction of Berkeley instrument at post-launch
turn-on
Satellite: IMP 6
Launch Date: 13 March 1971
Number of Instruments: 2 LEPEDEAs
Period of Operation: 17 March 1971 to 2 October 1974
Comments: One of three detectors degraded on 15 August 1974;
spacecraft entry into Earth's atmosphere on 2
October 1974
Satellite: Ariel 4
Launch Date: 11 December 1971
Number of Instruments: 2 LEPEDEAs
Period of Operation: 31 December 1971 to 16 October 1972
Comments: One of two LEPEDEA's inoperable on 16 October
1972; spacecraft operations terminated on 31 March
1973
Satellite: IMP 7
Launch Date: 23 September 1972
Number of Instruments: 2 LEPEDEAs
Period of Operation: 5 October 1972 to 31 October 1978
Comments: Cessation of spacecraft operations on 31 October
1978; successfully reactivated for a short period
in 1985
Satellite: IMP 8
Launch Date: 25 October 1973
Number of Instruments: 2 LEPEDEAs
Period of Operation: 15 November 1973 to present (1993)
Comments: Still in operation. Severe gain degradation for
sensors occurs by July-August 1985. Degradation
anticipated within a period of ~ 10 years after launch
Satellite: Hawkeye
Launch Date: 3 June 1974
Number of Instruments: 1 LEPEDEA
Period of Operation: 5 June 1974 to 28 April 1978
Comments: Spacecraft entered atmosphere on 28 April 1978
Satellite: ISEE 1
Launch Date: 22 October 1977
Number of Instruments: 1 LEPEDEA
Period of Operation: 1 November 1977 to 26 September 1987
Comments: Gain degradation in sensors as anticipated from
established lifetime; reentered 26 September 1987
Satellite: ISEE 2
Launch Date: 22 October 1977
Number of Instruments: 1 LEPEDEA
Period of Operation: 31 October 1977 to September 1987
Comments: Partial malfunction of instrument occurred on 10
January 1978 due to high-voltage arcing of the
ancillary GM tube; reentered 26 September 1987
Satellite: Dynamics Explorer
Launch Date: 3 August 1981
Number of Instruments: 3 imaging photometers
Period of Operation: 23 September 1982 to November 1990
Comments: All three imaging photometers provided excellent
visible and UV imagery throughout operational
period
Satellite: PDP (STS-3 Mission)
Launch Date: 22 March 1982
Number of Instruments: 1 LEPEDEA, 1 electron Faraday cup
Period of Operation: 22-30 March 1982, 22-27 March 1982
Comments: Operated properly
Satellite: PDP (SL-2 Mission)
Launch Date: 29 July 1985
Number of Instruments: 1 LEPEDEA, 1 electron Faraday cup
Period of Operation: 30 July to 6 August 1985
Comments: Operated properly
Satellite: Galileo
Launch Date: 18 October 1989
Number of Instruments: Hot plasma analyzer with ion composition spectrometers
Period of Operation: 27 December 1989 to present (1993)
Comments: Operating properly
Satellite: ISTP/Geotail
Launch Date: 24 July 1992
Number of Instruments: Hot plasma analyzer with ion composition spectrometers
Period of Operation:
Comments:
Satellite: ISTP/Polar
Launch Date: 24 February 1996
Number of Instruments: Visible imaging system
Period of Operation:
Comments:
