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 this method to the whole sample of NEA observations
The Population of Near-Earth Asteroids in Coorbital Motion with the Earth
β Scribed by M.H.M. Morais; A. Morbidelli
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 355 KB
- Volume
- 160
- Category
- Article
- ISSN
- 0019-1035
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β¦ Synopsis
We obtain the size and orbital distributions of near-Earth asteroids (NEAs) that are expected to be in the 1 : 1 mean motion resonance with the Earth in a steady state scenario. We predict that the number of such objects with absolute magnitudes H < 18 and H < 22 is 0.65 Β± 0.12 and 16.3 Β± 3.0, respectively. We also map the distribution in the sky of these Earth coorbital NEAs and conclude that these objects are not easily observed as they are distributed over a large sky area and spend most of their time away from opposition where most of them are too faint to be detected.
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