Radio-Echo Observations of the Major Night-Time Meteor Streams
نویسندگان
چکیده
منابع مشابه
Simultaneous meteor echo observations by largeaperture VHF and UHF radars
We report simultaneous meteor echo observations using the Arecibo 430MHz and 46.8-MHz radars. Using identical data-taking and meteor selection criteria, 1868 and 367 meteors were found in the 430-MHz and 46.8-MHz beams, respectively, while 145 were found in both beams during the 7 hours of observation. Of the 367 VHF echoes, there were only 10 trail echoes, while the rest were head echoes, whic...
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It is known from theory that, by means of a plasma physics approach, it is possible to obtain a simple formula to calculate the approximate height of a meteor (Foschini, 1999). This formula can be used in case of forward scatter of radio waves and has the advantage that it does not depend on the diffusion coefficient. On the other hand, it is possible to apply the formula to a particular type o...
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Problem of meteor orbit determination for a given parent body is discussed. Some of the published methods for obtaining meteoroid’s orbital elements at the moment of intersecting Earth’s orbit on the basis of geometrical variation of parent body’s orbital elements are discussed. The main result concerns the following two facts: i) in real situations physical quantities for the change of orbital...
متن کاملRadar observations of meteor trails
Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract A Fresnel Transform technique has been developed at Adelaide to analyse radar meteor echoes detected in the transverse mode. The genesis for this technique was the study of the structure of the scattering ionization immediately behind the head of the trai...
متن کاملMeteor science from ionospheric observations
Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract We report the observation and analysis of ionization flashes associated with the decay of meteoroids (so-called head echos) detected by the Arecibo 430 MHz radar during regular ionospheric observations in the spring and autumn equinoxes. These two periods...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1966
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/132.1.225