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Astron. Astrophys. Suppl. Ser.
Volume 128, Number 1, February_II 1998
Page(s) 179 - 185
Published online 15 February 1998
DOI: 10.1051/aas:1998133

A&A Supplement series, Vol. 128, February II 1998, 179-185

Received June 14, 1996; accepted January 7, 1997

Precision meteor orbits obtained by the Dutch Meteor Society - Photographic Meteor Survey (1981-1993)

H. Betlemtex2html_wrap498gif, C.R. ter Kuiletex2html_wrap498, M. de Lignietex2html_wrap498, J. van't Leventex2html_wrap498, K. Jobsetex2html_wrap498, K. Miskottetex2html_wrap498, and P. Jenniskenstex2html_wrap510

Send offprint request: H. Betlemtex2html_wrap498 or P. Jenniskenstex2html_wrap510

tex2html_wrap516  Dutch Meteor Society, Lederkarper 4, 2318 NB Leiden, The Netherlands
tex2html_wrap518  NASA/Ames Research Center, Mail Stop 239-4, Moffett Field, CA 94035-1000, U.S.A.


359 precisely reduced meteor orbits are presented that are the result of the Dutch Meteor Society's Photographic Meteor Survey in the period 1981 until 1993. Orbits include those of major and minor showers, doubling the number of known precise orbits of some meteor streams. From the spread in solutions of all possible sets of two photographic stations, we derive the measurement uncertainties from which we are able to calculate the intrinsic scatter in the Perseid meteor stream. The new Geminid orbits are compared to those obtained in similar surveys in the 1950's. This first measurement of the rate of change of Geminid orbits over time agrees well with model predictions.

keywords: meteoroids

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