Table 1
Distribution of observations and asteroids over taxonomic classes and orbital populations.
| Fraction | Orbital Class | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Class | Samples | Asteroids | This work | DM09 | NEA | MC | H | IMB | MMB | OMB | Cyb | Hilda | JT |
| A | 57 | 32 | 1.5 | 1.6 | 2 | 3 | 2 | 7 | 10 | 8 | − | − | − |
| B | 68 | 45 | 2.1 | 1.1 | 15 | 4 | 1 | 12 | 5 | 8 | − | − | − |
| C | 299 | 221 | 10.4 | 7.3 | 69 | 8 | 2 | 89 | 72 | 79 | 2 | 2 | 5 |
| Ch | 144 | 107 | 5.0 | 4.8 | 9 | 2 | − | 20 | 47 | 26 | 2 | − | 1 |
| D | 119 | 82 | 3.9 | 4.3 | 6 | 1 | − | 1 | 4 | 5 | 5 | 16 | 44 |
| E | 65 | 46 | 2.2 | − | 7 | 4 | 27 | 4 | 3 | 1 | − | − | − |
| K | 59 | 42 | 2.0 | 4.3 | 21 | 2 | − | 5 | 2 | 12 | − | − | − |
| L | 76 | 58 | 2.7 | 5.9 | 20 | 4 | 3 | 4 | 22 | 3 | − | − | 2 |
| M | 252 | 142 | 6.7 | − | 29 | 7 | 2 | 17 | 47 | 28 | − | 2 | 10 |
| O | 4 | 2 | 0.1 | 0.3 | − | − | − | − | 1 | 1 | − | − | − |
| P | 195 | 135 | 6.4 | − | 14 | 6 | 1 | 11 | 26 | 36 | 12 | 12 | 17 |
| Q | 158 | 107 | 5.0 | 2.2 | 89 | 5 | − | 7 | 4 | 2 | − | − | − |
| R | 15 | 10 | 0.5 | 0.3 | 7 | − | − | 2 | − | 1 | − | − | − |
| S | 1188 | 898 | 42.3 | 53.8 | 404 | 101 | 35 | 140 | 172 | 45 | − | 1 | − |
| V | 206 | 142 | 6.7 | 4.6 | 28 | 2 | − | 104 | 4 | 4 | − | − | − |
| X | 50 | 33 | 1.6 | 8.6 | 20 | 8 | 2 | 1 | − | 2 | − | − | − |
| Z | 28 | 23 | 1.1 | − | 1 | − | 1 | 4 | 6 | 3 | − | 1 | 7 |
| Σ | 2983 | 2125 | 100 | 98.9 | 741 | 157 | 76 | 428 | 425 | 264 | 21 | 34 | 86 |
Notes. The second column gives the number of observations assigned to each class, while the third and all following columns refer to the number of individual asteroids assigned to the class. DM09 refers to DeMeo et al. (2009). The fractions in this column do not add up to 100%, due to the missing T-class in this scheme. The orbital classes use the following acronyms: NEA – near-Earth asteroids; MC – Mars-crosser; H – Hungaria; IMB – inner main belt; MMB – middle main belt; OMB – outer main belt; Cyb – Cybele; JT – Jovian trojans.
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