(854) Frostia

compiled by Wm. Robert Johnston
last updated 14 October 2006

Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):

orbital data, primary (osculating elements) [JPL]:
semimajor axis a: 2.3685829 AU
orbital period P: 3.6454 y (=1331.5 d)
eccentricity e: 0.1736028
perihelion distance q: 1.9573903 AU
aphelion distance Q: 2.77977552 AU
inclination i: 6.09149°
argument of perihelion omega: 83.49159°
ascending node OMEGA: 190.83848°
mean anomaly M: 127.88447°
perihelion passage TP: 2004-05-02.0158175
Epoch: 18 AUG 2005
data arc: 1942-1997 (74 obs.)

orbital data, secondary:
semimajor axis a: 9.6 to 25 km [B06c]
semimajor axis/primary radius a/Rp: 2.46 ± 0.13 [B06c]
orbital period P: 37.728 ± 0.001 h [B06c]
eccentricity e: ?

other data, primary:
diameter: (13.7 ± 5.6 km) [B06c]
absolute magnitude H: 12.1 [JPL]
rotation period: 37.728 ± 0.001 h [B06c]
amplitude delta M: 0.37 ± 0.01; 0.80 ± 0.03 [B06c]
color index B-V: ?
color index V-R: ?
color index R-I: ?
slope parameter G: (0.15) [a]
geometric albedo: ?
mass: (11 to 201)x1013 kg [B06c]
density: 0.89 ± 0.14 g/cm3 [B06c]
type: ?

other data, secondary:
diameter: 10 km? [I8389]
diameter ratio Ds/Dp: (0.7)
component magnitude difference: (0.7)
rotation period: ?

--(854) Frostia--discovery and notes:

Discovered 3 April 1916 by Sergei Beljavskij from Simeis. Additional designations 1916 S29, 1931 MB, 1935 QE, and 1950 VP.

Secondary identified based on lightcurve observations in July 2004 by Rauol Behrend et ali.

See more information and links at Asteroid/Comet Connection Catchall Catalog page

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2004-2005, 2006 by Wm. Robert Johnston.
Last modified 14 October 2006.
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