Measurements of Heavy Ions in the Low-Altitude Regions of the Outer Zone.
Abstract
The data were acquired with a heavy-ion sensor aboard the S3-2 satellite in the time period between 24 December 1975 and 3 March 1976. At L = 3.25, 0.35 = or < B = 0.25, E > 250 KeV/nucleon, mirroring fluxes of 370/Sq cm- sec-sr He ions and 0.25/Sq cm-sec-sr CNO ions were observed. Thus the CNO/He ratio was approx.= 6,800,000. Equatorial measurements (Spjeldvik and Fritz, 1978c; Hovestadt et al., 1978) gave a much larger He/CNO ratio; clearly magnetospheric processes strongly discriminate against populating the low-altitude regions with ions of increasing mass in the energy range of hundreds of KeV. In addition, a comparison of the S3-2 data with that from INJUN 5 acquired in January 1969 in the same region of the magnetosphere indicated that the low altitude CNO/He ratio is strongly time dependent.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 15, 1981
- Accession Number
- ADA099453
Entities
People
- D. Hovestadt
- J. B. Blake
- Joseph F. Fennell
Organizations
- The Aerospace Corporation