The radio astronomy experiment on Helios A and B /E 5c/

Details The radio astronomy experiment on Helios A and B /E 5c/ The radio astronomy experiment on Helios A and B /E 5c/

Oct 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975rf.....19..250w&link_type=abstract

Raumfahrtforschung, vol. 19, Sept.-Oct. 1975, p. 250-252.

Astronomy and Astrophysics

Astronomy

1

Helios Satellites, Radio Astronomy, Satellite-Borne Instruments, Spaceborne Astronomy, Dipole Antennas, Electronic Control, Preamplifiers, Radiometers, Solar Radio Emission, Solar Wind

Scientific paper

The NASA Goddard Space Flight Center radio astronomy experiment on Helios, identified as Experiment 5c, has sixteen observing frequencies over the range of 26.5 to 3000 kHz. The antenna consists of two extendible 15-m booms, forming an electric dipole, two high-impedance preamplifiers located at the root of the booms, and the 16-channel radiometer. Important information about propagation conditions, such as absorption, scattering and refraction, are expected from observations of radio emission regions at distances between 1 and 0,3 AU.

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