Accession Number:

AD0669492

Title:

VLF ELECTRIC AND MAGNETIC FIELDS OBSERVED WITH THE JAVELIN 8.45 SOUNDING ROCKET,

Descriptive Note:

Corporate Author:

IOWA UNIV IOWA CITY DEPT OF PHYSICS AND ASTRONOMY

Report Date:

1968-03-01

Pagination or Media Count:

55.0

Abstract:

The Javelin 8.45 rocket VLF experiment flown from Wallops Island at 0738 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

Subject Categories:

  • Atmospheric Physics
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE