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Table 2

Assumed and previously measured thermophysical modelling parameters for thermal-infrared flux fitting and Yarkovsky and YORP effect modelling.

Shape model Radar Flattened-radar Light-curve

Number of vertices 2048a 2048a 1022b
Number of facets 4092a 4092a 2040b
Axis ratios (a:b:c) 2.51:1.00:1.07a 3.07:1.22:1.00 3.08:1.22:1.00b
Rotation periodb 5.223336 h 5.223336 h 5.223336 h
YORP rotational accelerationb (1.5 ± 0.2) × 10-3 rad yr-2 (1.5 ± 0.2) × 10-3 rad yr-2 (1.5 ± 0.2) × 10-3 rad yr-2
Pole orientation λa = 55°, βa = –46° λa = 55°, βa = –46° λb = 58°, βb = –49°
Obliquity 149° 149° 152°
Semimajor axisc 1.246 AU 1.246 AU 1.246 AU
Eccentricityc 0.336 0.336 0.336
Yarkovsky semimajor axis driftd –27.4 ± 5.7 m yr-1 –27.4 ± 5.7 m yr-1 –27.4 ± 5.7 m yr-1
Absolute magnitudee 15.6 ± 0.1 15.6 ± 0.1 15.6 ± 0.1
Phase parametere 0.15 0.15 0.15
Emissivity 0.9 0.9 0.9

Notes. Obtained from

(a)

Hudson & Ostro (1999);

(b)

Ďurech et al. (2008b);

(c)

the JPL Small-Body Database Browser;

(d)

Chesley et al. (2008), Nugent et al. (2012); and Farnocchia et al. (2013);

(e)

Magnusson et al. (1996).

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