J/A+A/511/A40 Near Earth Asteroids positions (Birlan+, 2010)
More than 160 Near Earth Asteroids observed in the EURONEAR network.
Birlan M., Vaduvescu O., Tudorica A., Sonka A., Nedelcu A., Galad A.,
Colas F., Pozo F., Barr D. A., Toma R., Comsa I., Rocher P., Lainey V.,
Vidican D., Asher D., Opriseanu C., Vancea C., Colque J.P., Rekola R.,
Unda-Sanzana E.
<Astron. Astrophys. 511, A40 (2010)>
=2010A&A...511A..40B 2010A&A...511A..40B
ADC_Keywords: Minor planets ; Magnitudes ; Positional data
Keywords: astrometry - minor planets, asteroids: general
Abstract:
The EUROpean Near Earth Asteroid Research (EURONEAR) is a network
which envisions to bring some European contributions into the general
context traced by the Spaceguard Foundation which was carried out
during the last 15 years mainly by the US with some modest European
and amateur contributions.
The number of known near Earth asteroids (NEAs) and potentially
hazardous asteroids (PHAs) has increased tremendously, mainly thanks
to five major surveys all focused on the discovery of new bodies. But
also other facilities are required to follow-up and improvement the
orbital parameters and to study the physical properties of the known
bodies. These goals are better achieved by a co-ordinated network such
as EURONEAR.
Astrometry is mandatory in order to acquire the positional information
necessary to define and improve orbits of NEAs and PHAs and to study
their trajectories through the solar system, especially in the
vicinity of Earth. Photometry is required to derive some physical
information about NEAs and PHAs. In order to achieve these objectives,
the main method of research of the EURONEAR is the follow-up programme
of objects selected by a few criteria, carried out mostly at 1 m-class
telescopes endowed with medium and large field cameras.
Description:
The EURONEAR_Release1 catalog contains 1544 positions of 155
Near-Earth Asteroids, obtained between 2006 and 2008.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
ast.dat 70 155 List of Near-Earth Asteroids, with data from
B/astorb
euronear.dat 74 1544 Near Earth Asteroids positions
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See also:
B/astorb : Orbits of Minor Planets (Bowell+ 2009)
VII/108 : Asteroids II Machine-Readable Data Base (Binzel+ 1987)
J/AJ/112/2319 : Asteroid masses (Hilton+ 1996)
J/A+A/375/275 : Asteroidal I, J, K in the DENIS Survey (Baudrand+ 2001)
J/A+A/423/381 : Asteroidal I, J, K in the DENIS Survey (Baudrand+, 2004)
J/other/CoSka/33.159 : Asteroid positions in 2002 (Neslusan+, 2003)
J/A+A/465/331 : Asteroid brightness and geometry (Durech+, 2007)
J/A+A/505/1297 : Hawaii Trails Project (Hsieh, 2009)
Byte-by-byte Description of file: ast.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Ast Number of provisional designation of NEA
14- 19 I6 --- Planet ? Asteroid number (blank if unnumbered)
21- 32 A12 --- Name Name or preliminary designation
34- 38 F5.2 mag H Absolute magnitude H parameter
40- 48 F9.6 deg i Inclination
50- 59 F10.8 --- e Eccentricity
61- 70 F10.8 AU a Semimajor axis
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Byte-by-byte Description of file: euronear.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Ast Number of provisional designation of NEA
13- 28 A16 "date" Obs.Date Observation date (YYYY/MM/DD.ddddd, UT)
32- 33 I2 h RAh Right ascension (J2000)
35- 36 I2 min RAm Right ascension (J2000)
38- 43 F6.3 s RAs Right ascension (J2000)
47 A1 --- DE- Declination sign (J2000)
48- 49 I2 deg DEd Declination (J2000)
51- 52 I2 arcmin DEm Declination (J2000)
54- 58 F5.2 arcsec DEs Declination (J2000)
62- 65 F4.1 mag mag ? Apparent magnitude (1)
69 A1 --- Filt [CIRV ] Filter (1)
72- 74 A3 --- Obs Observatory code
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Note (1): Some fields mag and filter are empty while the magnitude was
not reported and no filter was used. R and I are Cousins filters,
C stands for "clear"
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Acknowledgements:
Mirel Birlan, Mirel.Birlan(at)imcce.fr
(End) Mirel Birlan [I.M.C.C.E], Patricia Vannier [CDS] 04-Dec-2009