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Lightning and Radio Emission Detector (LRD)

NSSDC ID: 1989-084E-06
Mission Name: Galileo Probe
Principal Investigator: Dr. Louis J. Lanzerotti

Description

The objectives of this investigation are to: (1) verify the existence of lightning on Jupiter and measure its basic physical characteristics and (2) measure radio frequency noise levels and one magnetic field component near Jupiter. Two instruments are used for this investigation: an electromagnetic sensor and an optical sensor. The electromagnetic sensor has a ferrite-core antenna with a preamplifier as an radio frequency sensor. The frequency domain is 3, 15, and 100 kHz narrow-band. The time domain is 1 Hz to 100 kHz, and the resolution is 16 s. The optical sensor has a photodiode with a fisheye lens. There is coincidence and anticoincidence between the radio frequency and optical sensors. The electromagnetic sensor is mounted under the Probe afterbody, while the optical sensor is mounted on the Probe envelope, looking out perpendicularly to the Probe spin axis. The total mass is 1.1 kg and the total continuous power is 1.0 W.

Alternate Names

  • LRD

Facts in Brief

Mass: 2.5 kg
Power (avg): 3.0 W
Bit rate (avg): 0.008 bps

Funding Agency

  • NASA-Office of Space Science (United States)

Discipline

  • Planetary Science: Atmospheres

Additional Information

Questions or comments about this experiment can be directed to: Dr. Edwin V. Bell, II.

 

Personnel

NameRoleOriginal AffiliationE-mail
Dr. G. SchmidkeCo-InvestigatorUniversitat Kiel 
Dr. Klaus RinnertCo-InvestigatorMax-Planck-Institut fur Aeronomie 
Dr. G. DehmelCo-InvestigatorTechnische Universitat Braunschweig 
Dr. Fritz O. GliemCo-InvestigatorTechnische Universitat Braunschweig 
Dr. E. Philip KriderCo-InvestigatorUniversity of Arizonakrider@air.atmo.arizona.edu
Dr. Louis J. LanzerottiGeneral ContactAT&T Bell Laboratorieslouis.j.lanzerotti@njit.edu
Dr. Martin A. UmanCo-InvestigatorUniversity of Floridajcoro@ece.ufl.edu
Mr. John D. MihalovCo-InvestigatorNASA Ames Research Centermihalov@windee.arc.nasa.gov

Selected References

Lanzerotti, L. J., et al., The lightning and radio emission detector (LRD) instrument, Space Sci. Rev., 60, No. 1/4, 91-109, May 1992.

Lanzerotti, L. J., et al., Radio frequency signals in Jupiter's atmosphere, Science, 272, No. 5263, 858-860, May 1996.

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