(107) Camilla and S/2001 (107) 1

(107) Camilla and S/2001 (107) 1
compiled by Wm. Robert Johnston
last updated 2 September 2005

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:	3.47837314697612 AU
orbital period P:	6.4874 y (=2369.6 d)
eccentricity e:	0.0788395639792206
perihelion distance q:	3.20413972471149 AU
aphelion distance Q:	3.75260657 AU
inclination i:	10.0473474826283°
argument of perihelion omega:	309.801980493693°
ascending node OMEGA:	173.145543352863°
mean anomaly M:	285.841042845247°
perihelion passage TP:	2006-12-19.116844
Epoch:	18 AUG 2005
data arc:	1868-2005 (689 obs.)

orbital data, secondary:

semimajor axis a: 1235 ± 16 km [MAe]
semimajor axis/primary radius a/Rp: (11.1)
orbital period P: 3.710 ± 0.001 d [MAe]
eccentricity e: 0.006 ± 0.002 [MAe]
inclination i: 3° ± 1° [MAe]

other data, primary:

diameter:	222.6 ± 17.1 km [IR]
triaxial ratios a/b, b/c:	1.46, 1.6 [SBb]
absolute magnitude H:	7.08 [JPL]
rotation period:	0.2018306 d (=4.84393 h) [SBb]
amplitude delta M:	0.32-0.52 [MPa]
color index U-B:	0.298 ± 0.020 [SBa]
color index B-V:	0.705 ± 0.016 [SBa]
color index V-R:	?
color index R-I:	?
slope parameter G:	0.08 [SBc]
geometric albedo:	0.0525 ± 0.009 [IR]
mass:	1.09x10¹⁹ kg [MAe]
density:	1.88 g/cm³ [MAe]
type:	C [SBd]

other data, secondary:

diameter: (9 ± 1 km)
diameter ratio Ds/Dp: 0.04 [I7599]
component magnitude difference: 7.0 ± 0.1 [I7599]
rotation period: ?

--(107) Camilla--discovery and notes:

Primary discovered 17 November 1868 from Madras, India, by N. R. Pogson. Alternate designations A893 QA, 1938 OG, 1949 HD1.

Companion discovered 1 March 2001 in Hubble Space Telescope images by Alex Storrs, F. Vilas, R. Landis, E. Wells, C. Woods, B. Zellner, and M. Gaffey; announced 19 March 2001. Subsequent observations have failed to detect the companion.

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

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

Bus, S. & Binzel, R. P. 2004, NASA Planetary Data System, EAR-A-I0028-4-SBN0001/SMASSII-V1.0:107CAMILL01 107 Camilla CCD Spectrum
Hestroffer, D. J. G. J. 2004, AAS/Division of Dynamical Astronomy Meeting On Equilibrium Shapes among Binary Asteroids
Svoren, J. & Babiakova, U. 2002, Memorie della Societa Astronomica Italiana CCD-photometry of asteroid 107 Camilla
Storrs, A., Makhoul, K., Wells, E., Gaffey, M., Vilas, F., Landis, R., Wood, C., & Zellner, B. 2002, AAS/Division for Planetary Sciences Meeting Imaging Asteroidal Companions with the Hubble Space Telescope (HST)
di Martino, M., Zappala, V., de Campos, J. A., Debehogne, H., & Lagerkvist, C.-I. 1987, Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 67, no. 1, Jan. 1987, p. 95-101. Rotational properties and lightcurves of the minor planets 94, 107, 197, 201, 360, 451, 511 and 702
Milani, A. & Nobili, A. M. 1984, IN: Asteroids, comets, meteors; Proceedings of the Meeting, Uppsala, Sweden, June 20-22, 1983 (A85-26851 11-89). Uppsala, Sweden, Astronomiska Observatoriet, 1984, p. 127-135. Dynamical instabilities in the outer asteroidal belt
Matthiessen, B. 1890, Astronomische Nachrichten Beobachtungen des Planeten (107) Camilla in der Opposition 1890
Matthiessen, Boy Bendix 1886, Kiel, Druck von C. F. Mohr, 1886. Ueber die bahn des planeten (107) Camilla ...
Palisa, J. 1877, Astronomische Nachrichten Auffindung des Planeten (107) Camilla
Hind, John Russell 1872, Astronomische Nachrichten Elemente der (107) Camilla
1871, Astronomische Nachrichten Beobachtungen des Planeten (107) Camilla auf der Sternwarte in Madras
de Gasparis, Annibal 1871, Astronomische Nachrichten Elemente der Camilla, berechnet von Herrn Prof. Dr. de Gasparis

© 2001-2004, 2005 by Wm. Robert Johnston.
Last modified 2 September 2005.
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