Physics
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ssrv...60...91l&link_type=abstract
Space Science Reviews (ISSN 0038-6308), vol. 60, no. 1-4, May 1992, p. 91-109.
Physics
8
Galileo Probe, Jupiter Atmosphere, Lightning, Radiation Detectors, Radio Emission, Satellite-Borne Instruments, Electromagnetic Noise, Flyby Missions, Planetary Magnetospheres, Spacecraft Antennas
Scientific paper
The Lightning and Radio Emission Detector (LRD) instrument will be carried by the Galileo Probe into Jupiter's atmosphere. The LRD will verify the existence of lightning in the atmosphere and will determine the details of many of its basic characteristics. The instrument, operated in its magnetospheric mode at distances of about 5, 4, 3, and 2 planetary radii from Jupiter's center, will also measure the RF noise spectrum in Jupiter's magnetosphere. The LRD instrument is composed of a ferrite-core radio frequency antenna and two photodiodes mounted behind individual fisheye lenses. The output of the RF antenna is analyzed both separately and in coincidence with the optical signals from the photodiodes. The RF antenna provides data both in the frequency domain (with three narrow-band channels, primarily for deducing the physical properties of distant lightning) and in the time domain with a priority scheme (primarily for determining from individual RF waveforms the physical properties of closeby-lightning).
Bach J.
Dehmel G.
Gliem F. O.
Krider Philip E.
Lanzerotti Louis J.
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