NSSDCA ID: 1964-060A-01
Mission Name: IMP-BThe retarding potential analyzer was a four-element Faraday cup. It was mounted normal to the spacecraft spin axis and had an effective look angle of 5 sr. The experiment operated for 5.2 s in each of four modes once every 648 s. In two modes, 15-step spectra for ions were determined for retarding potentials in the ranges of minus 5 V to plus 15 V and minus 5 V to plus 45 V. In the other two modes, similar information for electrons was obtained by changing the signs of the potentials. The instrument experienced secondary electron contamination but returned essentially continuous data until April 5, 1965. For further details, see G. P. Serbu, J. Geophys. Res., v. 71, p. 3755, 1966. NSSDC has all the data that now exist.
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Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Eugene J. Maier | Other Investigator | NASA Goddard Space Flight Center | |
Mr. Gideon P. Serbu | Principal Investigator | NASA Goddard Space Flight Center |