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IJRSP Vol.35(6) [December 2006] >


Title: Detection of 2004 Leonid meteor shower by observing its effects on VLF transmission
Authors: De, S S
De, B K
Guha, A
Mandal, P K
Keywords: Meteor shower
VLF radio wave
ionospheric disturbances
Issue Date: Dec-2006
Publisher: CSIR
Abstract: Results of the detection of 2004 Leonid meteor shower over Kolkata (22°34´ N, 88°30´ E), India is presented in this paper, by using a VLF amplifier tuned at one of the transmission frequencies of Indian Navy Traffic stations at Vijayananarayanam (8º25´59.88´´ N, 77°48´ E) at 16.3 kHz. The shower was predicted to exhibit a peak activity on 19 Nov. 2004. In spite of low ZHR predicted, the peak activity had been observed earlier than the predicted times, which confirms the nongravitational ‘A2 effect’ on meteoroid trails. The observation also suggests that electromagnetic detection of meteor shower is better than the visual observation, as any time of the day and night its effect on VLF transmission can be recorded.
Page(s): 396-400
ISSN: 0367-8393
Source:IJRSP Vol.35(6) [December 2006]

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