Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Andrea Boattini"'
Publikováno v:
Proceedings of the International Astronomical Union. 2:291-300
A survey for NEO aiming at 90% completeness for a given size range cannot ignore that a significant fraction of the population is observable essentially only at low solar elongation, in the so called “sweet spots” There are several penalties for
Publikováno v:
Earth, Moon, and Planets. 100:31-41
A new protocol was devised to improve the efficiency of astrometric follow-up observations of Near Earth Asteroids for the accurate determination of their orbits. It was implemented in the activities of the Spaceguard Central Node (SCN, a facility of
Autor:
Petr Pravec, Germano D'Abramo, G. Forti, David Asher, Andrea Boattini, Richard M. West, Gerhard Hahn, R. Michelsen, Giovanni B. Valsecchi, Olivier Hainaut, M. Carpino, Hans Jochen Scholl, Hermann Boehnhardt
Publikováno v:
Astronomy & Astrophysics. 418:743-750
We have performed a Near Earth Asteroid search and follow-up test beyond 22nd magnitude with the 2.2-m MPG/ESO and the New Technology Telescope (NTT) facilities at La Silla. The experiment comprised a total num- ber of 4 nights at the 2.2-m telescope
Autor:
Hans Jochen Scholl, Gerhard Hahn, G. Forti, R. Michelsen, Richard M. West, Giovanni B. Valsecchi, Germano D'Abramo, Petr Pravec, Andrea Boattini, Olivier Hainaut
Publikováno v:
Earth, Moon, and Planets. 93:239-248
We have used the ESO Very Large Telescope (VLT) to perform as trometric observations of Near Earth Asteroids (NEAs) having remote collision possibilities with the Earth. The observations were made for those objects which became too faint to be observ
Publikováno v:
Icarus. 159:417-422
We consider a small sample of known near Earth objects (NEOs), both asteroids and comets, with low minimum orbital intersection distance (MOID). Through a simple numerical procedure we generate slightly different orbits from this sample in such a way
Autor:
Giovanni B. Valsecchi, Stephanie C. Werner, Germano D'Abramo, Alan W. Harris, Andrea Boattini
Publikováno v:
Icarus. 153:214-217
A simple probabilistic model for estimating the population of near-Earth asteroids (NEAs) by comparing the rate of redetections of previously known asteroids of a given size with new detections during a test interval of time is described. We apply th
Publikováno v:
Astronomy & Astrophysics. 375:293-307
The Arcetri Near Earth Object Precovery Program (ANEOPP) is a project dedicated to the identification of images of Near Earth Objects (NEOs) on past archival materials, an activity usually referred to as precovery . Going years back in time to locate
Autor:
Andrea Boattini
Publikováno v:
International Astronomical Union Colloquium. 183:233-239
The discovered population of Near Earth Objects (asteroids and comets) consists of more than 1,300 bodies. Small telescopes provided with a large field of view have played a major role in the field, contributing to the discovery of about 95% of the t
Autor:
Andrea Boattini, Giuseppe Forti
Publikováno v:
Planetary and Space Science. 48:939-944
A very important step for the acquisition of accurate orbital information of near Earth asteroids (NEAs) is the recovery process. About one-third of the known NEAs have been observed for more than one opposition. We studied the circumstances of the r
Autor:
A. Carusi, Andrea Boattini
Publikováno v:
Vistas in Astronomy. 41:527-541
The class of Near-Earth Asteroids known as Atens are very important search targets for two reasons: first, recent studies have shown that they have the highest intrinsic frequency of close encounters with the Earth, and second, they are probably unde