RADIO-ECHO STUDIES OF METEORS AT 68-CM WAVELENGTH. PART I: SPORADIC METEORS,
Abstract
Radio-echo observations of meteors at 68 cm are described. Details are given of the equipment and of the data collection and reduction procedures. Sufficient information was gathered to permit the computation of the velocity, height, ddration, and intensity for most of the meteors. The interrelation of these quantities is explored. The principle conclusions reached are: that the meteors recorded at this short wavelength are seen over a height range not sensibly different from that at long wavelengths, the effective scattering lengths of the trails are short (50 meters), the over-all lengths of the trails average 6 to 7 km, and (evidence of fragmentation is found in about 50% of the meteors observed. The visual magnitude of these meteors has been estimated from their rate and corresponds to +8. The short effective scattering length is attributed to a rapid initial expansion of the trail diameter. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 29, 1963
- Accession Number
- AD0439354
Entities
People
- J. V. Evans
- R. A. Brockelman
Organizations
- Massachusetts Institute of Technology