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Target category | Definitiona | Orbital element rangesb |
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Themis family |
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3.04 < a < 3.27, 0.05 < e < 0.23, 0.0 < i < 3.1 | 342 | 389 | 2271 |
Low-i asteroidsf |
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3.09 < a < 3.21, 0.03 < e < 0.30, 0.1 < i < 2.9 | 426 | 476 | 10 929 |
Karin cluster |
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2.86 < a < 2.87, 0.00 < e < 0.09, 1.0 < i < 3.2 | 15 | 15 | 130 |
Koronis familyg |
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2.83 < a < 2.95, 0.00 < e < 0.12, 0.7 < i < 3.3 | 131 | 136 | 2565 |
Veritas family |
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3.15 < a < 3.18, 0.02 < e < 0.11, 7.9 < i < 10.6 | 42 | 45 | 324 |
Total | ... | ... | 599 | 657 | 13 818 |
a Criteria used to select target list from general
asteroid population, where family and cluster members
are selected using hierarchical clustering
(Zappalà et al. 1994,1990) and the maximum allowable
![]() ![]() b Osculating orbital element ranges for the target samples in this survey, where semimajor axis distances are in AU and inclination values are in degrees. c Number of unique objects observed belonging to each category. d Number of observations of objects belonging to each category (where multiple observations of single targets are counted independently). e Total number of known potential targets belonging to each category (as of 2009 April 1). f Includes all Themis family members. g Includes all Karin cluster members. |
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