Joint Lightcurve Observations of 10 Near-Earth Asteroids from Modra and ONDŘEJOV

Details Joint Lightcurve Observations of 10 Near-Earth Asteroids from Modra and ONDŘEJOV Joint Lightcurve Observations of 10 Near-Earth Asteroids from Modra and ONDŘEJOV

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005em%26p...97..147g&link_type=abstract

Earth, Moon, and Planets, Volume 97, Issue 1-2, pp. 147-163

Computer Science

Minor Planets, Asteroids, Near-Earth Asteroids, Photometry

Scientific paper

The effort in photometry of near-Earth asteroids (NEAs) at Modra Observatory has been enhanced following a recent collaboration with Ondřejov Observatory. We present a part of our collaborative work on measuring rotation lightcurve data for 10 NEAs. We derived following synodic periods P and amplitudes of their composite lightcurves: (3553), 3.1944 h, 0.08 mag; (22753), 10.24 h, 0.11 mag; (31669), 5.807 h, 0.07 0.27 mag; (40267), 4.9568 h, 1.01 1.11 mag; (66146), 2.3774 h, 0.12 0.15 mag; (88188), 2.6906 h, 0.06 mag; (103067), 9.489 h, 0.49 mag; 2001 CB21, 3.302 h, 0.19 mag; 2004 LJ1, 2.7247 h, 0.17 0.59 mag; 2004 XO14, 8.417 h, 0.19 0.25 mag. While the derived periods are unique (the reliability code U=3) for most of the objects, those of (3553), (22753) and 2001 CB21 are somewhat less reliable ( U=2). We checked all the U=3 data for deviations from strict periodicity, but found no significant attenuation that would indicate the presence of a satellite. Absolute magnitudes in Cousins R band ( H R ) were derived for (3553), 16.05; (40267), 15.59; (88188), 16.04; 2004 XO14, 15.84; errors of the first three H R estimates are 0.20 mag, but that of 2004 XO14 is <0.10 mag.

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