| DATA_SET_DESCRIPTION |
Data Set Overview : The DENIS program (Deep European Near-Infrared southern sky Survey) was a ground-based survey of the southern sky with the aim of providing an extensive I,J,Ks photometric catalog of point and extended sources. It was carried out at the 1.0 meter ESO telescope at La Silla, Chile from late 1995 through the end of 1999. The limiting magnitudes of the three bands I, J, and Ks centered at 0.8, 1.25, and 2.15 microns are respectively 18.5, 16.5, and 13.5 to a sensitivity of about 2 sigma. The DENIS point source catalog was searched for known asteroids numbered from 1 to 8000 on the basis of their predicted positions. The ephemerides were computed by numerical integration and Chebyshev Polynomial approximations of a 10-body problem (Bec-Borsenberger 1992). The orbits of the planets were included for completeness and were taken from JPL DE403 (Standish 1995). As initial conditions, the osculating elements of the Lowell Observatory Asteroid Orbital Elements Database were used. This resulted in 2190 matches in the DENIS catalog with 1931 different asteroids found. The results were published in Baudrand (2001 and 2004), constituting the first and second releases of the asteroid results. Both the first and second releases are included in this data set. The data for this data set were obtained at the Centre de Donnees astronomiques de Strassbourg. The data tables obtained there were modified in the following ways only. The tables were concatenated into a single table, the columns were rearranged, phase angle was truncated to three digits after the decimal point, and DENIS image number was converted from a real number with no digits after the decimal point to an integer. Baudrand, A., A. Bec-Borsenberger, J. Borsenberger, and M.A. Barucci, Asteroidal I, J, K magnitudes recovered in the DENIS survey: First release, Astronomy and Astrophysics 375, 275-280, 2001. Baudrand, A., A. Bec-Borsenberger, and J. Borsenberger, Asteroidal I, J, K magnitudes recovered in the DENIS survey: Second release, Astronomy and Astrophysics 423, 381-383, 2004. Bec-Borsenberger, A., Solar system objects observed by HIPPARCOS, Astronomy and Astrophysics 258, 94, 1992. Standish, E.M., J.G. Williams, and W.M. Folkner, JPL Planetary and Lunar Ephemerides, DE403/LE403, JPL IOM, 314, 10, 1995.
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