• SporadicE ionization associated with meteor events

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    • Keywords


      Meteoric ionization; sporadicE; line electron density

    • Abstract


      Two meteor events which were sighted in the Gujarat skies of India, were accompained by the visibility of sporadicE ionization on the ionograms recorded at Ahmedabad (Geog. Lat. 23·2°N, long. 72·30°E). The first event was the Dhajala fireball which flashed into the geoatmosphere along an E-N to W-S trail at about 20·40 h IST on 28 January 1976; the closest distance of the ground projection of meteor trail from Ahmedabad was 50km. The other event was a possible meteor group sighted over Ahmedabad on 28 May 1978, at about 21·10 h IST. This work describes the nature of the sporadicE ionization observed on Ahmedabad ionograms during the two events. Features of theEs echo during the Dhajala event which indicate that it could be of meteoric origin are discussed. Meteor theory is used to relate the observed ionization with the physical dimensions of the Dhajala meteorite as obtained by other workers.

    • Author Affiliations


      Girija Rajaram1 H Chandra2

      1. Indian Institute of Geomagnetism, Bombay - 400 005, India
      2. Physical Research Laboratory, Ahmedabad - 380 009, India
    • Dates

  • Journal of Earth System Science | News

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