Actions for Radio Astronomy Explorer (RAE) 1 observations of terrestrial radio noise

Email RIS file
Bookmark
Report an Issue

Radio Astronomy Explorer (RAE) 1 observations of terrestrial radio noise

Author
Caruso, J. A.
Published
Oct 26, 1971.
Physical Description
1 electronic document
Additional Creators
Herman, J. R.
Online Version

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
Radio Astonomy Explorer (RAE) 1 data are analyzed to establish characteristics of HF terrestrial radio noise at an altitude of about 6000 km. Time and frequency variations in amplitude of the observed noise well above cosmic noise background are explained on the basis of temporal and spatial variations in ionospheric critical frequency coupled with those in noise source distributions. It is shown that terrestrial noise regularly breaks through the ionosphere and reaches RAE with magnitudes 15 or more db higher than cosmic noise background. Maximum terrestrial noise is observed when RAE is over the dark side of the Earth in the neighborhood of equatorial continental land masses where thunderstorms occur most frequently. The observed noise level is 30-40 db lower with RAE over oceans.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19720016515.
Accession ID: 72N24165.
ASCR-72-54.
NASA-CR-122401.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15946757