NSSDCA ID: 1972-073A-12
Mission Name: IMP-HAn electrostatic analyzer and Wien-type velocity selector were used to gain exploratory data on heavy ion composition in the solar wind. The bulk velocities of 4 He++, 4 He+, 3 He++, and O (isotopes indistinguishable) ions in all ionization states were separately studied. During 30 successive spacecraft spin periods, ions of a given species were studied in 30 logarithmically equispaced bulk velocity channels from 200 to 600 km/s. A complete set of measurements required about 10 min and consisted of 30 one-step sequences for 4 He++ ions and five 30-step sequences for each of the three other species. This was an experimental detector, and the data were considered not useful.
Questions and comments about this experiment can be directed to: Dr. H. Kent Hills
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Keith W. Ogilvie | Principal Investigator | NASA Goddard Space Flight Center | keith.w.ogilvie@nasa.gov |