J/A+AS/128/179 Precision meteor orbits (Betlem+ 1998)
Precision meteor orbits obtained by the Dutch Meteor Society -
Photographic Meteor Survey (1981-1993)
Betlem H., ter Kuile C.R., de Lignie M., van't Leven J., Jobse K.,
Miskotte K., Jenniskens P.
<Astron. Astrophys. Suppl. Ser. 128, 179 (1998)>
=1998A&AS..128..179B 1998A&AS..128..179B (SIMBAD/NED BibCode)
ADC_Keywords: Solar system ; Positional data ; Space velocities
Keywords: meteoroids
Description:
Orbital elements, encounter data and other relevant information of 359
photographic meteors (Table 2 of the paper).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2a 128 359 *Photographic orbital data of 359 multi station
meteors
table2b 100 359 *Trajectory data of 359 multi station meteors
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Note to table2a and table2b: Data obtained by the Dutch Meteor Society
between 1981 and 1993
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Byte-by-byte Description of file: table2a
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Bytes Format Units Label Explanations
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1- 5 I5 --- Code DMS sequential numbering starting with the year
7- 8 I2 --- Month Month
10- 16 F7.4 d Day Day and time (UT) in decimal days
18 I1 --- Nstat Number of multi-station components
20- 24 A5 --- Stream Meteor stream identification
26- 28 I3 mag Mv Absolute visual magnitude at a distance of 100km
30- 34 F5.3 AU q Perihelion distance
36- 40 F5.3 AU e_q rms uncertainty on q
42- 48 F7.2 AU a Semi-major axis
50- 55 F6.3 AU-1 1/a Inverse semi-major axis
57- 61 F5.3 AU-1 e_1/a rms uncertainty on
63- 67 F5.3 --- e Eccentricity
69- 73 F5.3 --- e_e rms uncertainty on e
75- 80 F6.2 deg i Inclination of the orbit with respect to the
ecliptic (Eq. 2000)
82- 86 F5.2 deg e_i rms uncertainty on i
88- 93 F6.2 deg omega Argument of perihelion (Eq. 2000)
95- 99 F5.2 deg e_omega rms uncertainty on omega
101-108 F8.4 deg Node Ascensing node (Eq. 2000)
110-115 F6.4 deg e_Node rms uncertainty on Node
117-122 F6.2 deg pi Longitude of perihelion (Eq. 2000)
124-128 F5.2 deg e_pi rms uncertainty on pi
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Byte-by-byte Description of file: table2b
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Bytes Format Units Label Explanations
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1- 5 I5 --- Code DMS sequential numbering starting with the year
7- 11 F5.2 km/s Vg Geocentric velocity
13- 17 F5.2 km/s Vh Heliocentric velocity
19- 23 F5.2 km/s Vinf Apparent pre-atmospheric velocity
25- 29 F5.2 km/s Vel Average velocity along trajectory
31- 33 F3.1 km/s e_Vel rms uncertainty on Vel
35- 39 F5.1 km Hbeg ? Beginning height
41- 45 F5.1 km Hmax ? Height of brightest point on meteor track
47- 50 F4.1 km Hend ? End height of meteor
52- 57 F6.2 deg RAdeg Apparent right ascension of radiant (J2000)
59- 63 F5.2 deg e_RAdeg ? Error due to uncertainty in time of meteor,
or spread in solutions for all possible sets
of two stations
65- 70 F6.2 deg DEdeg Apparent declination of radiant (J2000)
72- 75 F4.2 deg e_DEdeg ? Error due to uncertainty in time of meteor,
or spread in solutions for all possible sets
of two stations
77- 82 F6.2 deg RAgeo Geocentric right ascension of radiant (J2000)
84- 89 F6.2 deg DEgeo Geocentric declination (J2000)
91- 95 F5.3 --- CosZR Cosine of zenith angle of radiant at time
of meteor
97-100 F4.1 deg Qmax Convergence angle between planes through meteor
and photographic station, maximum value of all
combinations
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Acknowledgements: Hans Betlem
References:
A subset of these data are available through the IAU Meteor Data
Center in Lund, Sweden.
For further information see the website of the Dutch Meteor Society
http://www.pi.net/~terkuile/meteors/dms.htm
(End) Patricia Bauer [CDS] 11-Jul-1997