Astrometrical positions of NEO inferred from CCD observations at Bucharest

Details Astrometrical positions of NEO inferred from CCD observations at Bucharest Astrometrical positions of NEO inferred from CCD observations at Bucharest

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jsrs.meet..240p&link_type=abstract

In: Journées 2004 - systèmes de référence spatio-temporels. Fundamental astronomy: new concepts and models for high accuracy obs

Astronomy and Astrophysics

Astronomy

Near-Earth Objects, Astrometry

Scientific paper

We show up the capability of the old Prin-Merz astrograph, completely renewed, to perform narrow-field astrometry. A highly accurate metrological system has been conceived in order to monitor, focus, and track the reference stars. Besides, a high quantum efficiency CCD camera based on a back illuminated chip, allows this instrument to "observe" celestial objects up to 18 magnitudes, in less than 30 seconds of exposure. Due to the small FOV of the instrument we use the most dense star catalogue available - USNO B1.0 which can provide us reference stars enough to compute an accurate plate solution. 2 NEO have been observed during the testing phase (3908) Nyx and (85640) 1998 OX4 and the results are presented in this paper. All the data have been submitted to the MPC.

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