Table 2
Derived physical properties for the 8 Themis asteroids we observed.
| Object | D(km) | p V | η | H V | A(mag) | DIRAS(km) | pV(IRAS) |
|
|
|||||||
| (222) Lucia | 59.8 ± 0.8 | 0.110 | 1.03 ± 0.02 | 9.13 | 0.25–0.33 | 54.66 ± 3.9 | 0.132 ± 0.021 |
| (223) Rosa | 61.2 ± 0.3 | 0.063 | 0.85 ± 0.01 | 9.68 | 0.06 | 87.61 ± 4.4 | 0.031 ± 0.003 |
| (316) Goberta | 46.8 ± 1.2 | 0.097 | 1.15 ± 0.04 | 9.80 | 0.20–0.27 | 47.92 ± 1.9 | 0.093 ± 0.008 |
| (383) Janina | 48.4 ± 0.3 | 0.082 | 1.12 ± 0.01 | 9.91 | 0.17 | 45.52 ± 1.8 | 0.093 ± 0.008 |
| (468) Lina | 59.7 ± 0.5 | 0.058 | 0.95 ± 0.01 | 9.83 | 0.10–0.18 | 69.34 ± 2.5 | 0.043 ± 0.003 |
| (492) Gismonda | 50.3 ± 1.1 | 0.084 | 1.12 ± 0.03 | 9.80 | 0.10 | 51.69 ± 1.4 | 0.080 ± 0.005 |
| (515) Athalia | 43.0 ± 0.2 | 0.031 | 1.07 ± 0.01 | 11.23 | ··· | 38.22 ± 2.1 | 0.039 ± 0.005 |
| (526) Jena | 52.3 ± 0.5 | 0.055 | 1.10 ± 0.02 | 10.17 | 0.27–0.35 | 41.49 ± 2.0 | 0.088 ± 0.009 |
Notes. Diameter D, albedo pV and beaming parameter η were determined using NEATM, the absolute magnitude HV was taken from the JPL Small-Body Database Browser, visual light-curve amplitude A was taken from Harris et al. (2011), and DIRAS and pV(IRAS) are the diameter and albedo reported using IRAS (Tedesco et al. 2002). Albedo uncertainties are not quoted since they depend on the light curve amplitudes and on the unreported uncertainties in HV.
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