VLF ELECTRIC AND MAGNETIC FIELDS OBSERVED WITH THE JAVELIN 8.45 SOUNDING ROCKET,
Abstract
The Javelin 8.45 rocket VLF experiment flown from Wallops Island at 07:38 UT, 21 September 1967, to an altitude of 763 km is described and the experiment results are discussed. This experiment carried three electric dipole and three magnetic loop antennas, five wideband receivers (30 Hz to 10 KHz), one step frequency receiver (7 KHz to 70 KHz), an instrument to measure the phase and magnitude of the electric antenna impedance (20 KHz to 20 Hz) and a VLF transmitter in the nose cone. A noise band between about 7.5 KHz and 30 KHz was observed with both the electric and magnetic receivers. The field geometry of this noise suggests that the noise is propagating perpendicular to the geomagnetic field and that the lower cutoff frequency may be the lower hybrid resonance frequency. Some evidence suggests that this electric antenna noise may be generated by the motion of the payload. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1968
- Accession Number
- AD0669492
Entities
People
- Donald A. Gurnett
- Stanley D. Shawhan
Organizations
- University of Iowa