Open Access
Table 1
Spin solution (coordinates in ecliptic and equatorial J2000 reference frames) and shape model parameters (the overall shape is reported as the a > b > c diameters of a triaxial ellipsoid fit to the shape model).
| Parameter | Symbol | Value | Unc. | Unit |
|---|---|---|---|---|
| Sidereal period | Ps | 5.987981 | 6 × 10−5 | (h) |
| Longitude | λ | 199.4 | 5. | (°) |
| Latitude | β | −31.9 | 5. | (°) |
| Right ascencion | α | 183.5 | 5. | (°) |
| Declination | δ | −36.6 | 5. | (°) |
| Ref. epoch | T0 | 2444771.750 | ||
| Diameter |  |
187 | 21.5 | (km) |
| Volume | V | 3.39 × 106 | 7.1 × 105 | (km3) |
| Diam. a | a | 237.9 | 21.5 | (km) |
| Diam. b | b | 184.8 | 21.5 | (km) |
| Diam. c | c | 156.0 | 21.5 | (km) |
| Axes ratio | a∕b | 1.29 | 0.19 | |
| Axes ratio | b∕c | 1.18 | 0.21 | |
| Axes ratio | a∕c | 1.52 | 0.25 | |
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