Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aj....126.1086y&link_type=abstract
The Astronomical Journal, Volume 126, Issue 2, pp. 1086-1089.
Astronomy and Astrophysics
Astronomy
8
Minor Planets, Asteroids, Techniques: Photometric, Techniques: Spectroscopic
Scientific paper
CCD photometric observations of the two near-Earth asteroids (NEAs) 2001 YB5 and 2001 TX16 were carried out in 2002 January with the 0.6/0.9 m Schmidt telescope of the National Astronomical Observatories of China (NAOC). Analysis of the light curves of these two objects reveals rotation periods of 3.20+/-0.03 hr with amplitude 0.21+/-0.02 mag for 2001 YB5 and 4.8005+/-0.0003 hr with amplitude 0.51+/-0.01 mag for 2001 TX16. Spectroscopic observations of the two NEAs were made with the NAOC 2.16 m telescope, ranging from 5000 to 9000 Å. The reflectance spectrum of 2001 YB5 is a little bluish, with a possible weak absorption band from 8000 to 9000 Å, which is consistent with the spectra of B-type asteroids. That of 2001 TX16 is spectrally flat, with a shallow absorption band centered near 7000 Å, consistent with the spectra of Ch-type asteroids.
Gao Jian-Jian
Guan Meijiao
Ma Jian
Wu Haibin
Yang Bokai
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