INSTRUMENT: PLANETARY RADIO ASTRONOMY RECEIVER
SPACECRAFT: VOYAGER 1
Instrument Id : PRA Instrument Host Id : VG1 Instrument Name : PLANETARY RADIO ASTRONOMYRECEIVER
Instrument Type : RADIO SPECTROMETER PI Name : JAMES W. WARWICK Build Date : UNK Instrument Mass : 7.700000 Instrument Height : UNK Instrument Length : UNK Instrument Width : UNK Instrument Manufacturer Name : MARTIN MARIETTA Instrument Serial Number : UNK
The Planetary Radio Astronomy (PRA) experiments' primary objective was to locate and explain kilometric, hectometric, and decametric radio emissions from the planets; to measure plasma resonances near the giant planets; and to detect lightning on the giant planets. The instrument was also successful at observing solar radio emissions from theperspective of the outer solar system.
Radio emissions can be used to determine the rate of rotation of the inner core of a planet, to determine the existence of a magnetic field, and to search for magnetic anomalies. Radio emissions are often the only remote diagnostic for interactions occurring in the portions of magnetospheres through which a spacecraft does not pass. This is particularly true for theinner magnetosphere, which usually goes unsampled.