(185851) 2000 DP107 and S/2000 (2000 DP107) 1

compiled by Wm. Robert Johnston
last updated 21 May 2008

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: 1.36612490543923 AU
orbital period P: 1.5968 y (=583.2 d)
eccentricity e: 0.376751124139311
perihelion distance q: 0.851435811600287 AU
aphelion distance Q: 1.880814 AU
inclination i: 8.66360602825242°
argument of perihelion omega: 289.666912760956°
ascending node OMEGA: 358.828119625628°
mean anomaly M: 294.819325350562°
perihelion passage TP: 2005-05-15.5967108
Epoch: 30 JAN 2005
data arc: 2000-2005 (410 obs.)

orbital data, secondary:
semimajor axis a: 2.622 ± 0.162 km [M02a]
semimajor axis/primary radius a/Rp: 6.6 [A3a]
orbital period P: 42.23 ± 0.04 h (1.760 ± 0.002 d) [OOb]
eccentricity e: 0.010 ± 0.005 [M02a]
inclination i: 17° ± 7° [M02a]

other data, primary:
diameter: 0.80 (± 0.16 km) [M02a]
absolute magnitude H: 18.01 [JPL]
rotation period: 2.7755 ± 0.0002 h [OOb]
amplitude delta M: 0.19 [MPb]
color index B-R: 1.088 ± 0.019 [I7504]
color index V-R: 0.388 ± 0.013 [I7504]
color index R-I: 0.329 ± 0.013 [I7504]
color index U-R: 1.366 ± 0.025 [I7504]
slope parameter G: 0.04 ± 0.05 [OOb]
geometric albedo: (0.06) [a]
mass: (4.6 ± 0.5)x1011 kg [M02a]
density: 1.7 ± 1.1 g/cm2 [M02a]
type: C [A3a]

other data, secondary:
diameter: 0.30 (± 0.15 km) [M02a]
triaxial ratio a/b: 1.2 [OOb]
diameter ratio Ds/Dp: 0.38 ± 0.03 [OOb]
component magnitude difference: ?
rotation period: synchronous? [OOb]

--(185851) 2000 DP107--discovery and notes:

Primary discovered 29 February 2000 by LINEAR program from Lincoln Laboratory ETS, New Mexico, USA. Permanent number assigned 20 May 2008.

Companion discovered 22 September-3 October 2000 by J. L. Margot, M. C. Nolan, L. A. M. Benner, S. J. Ostro, R. F. Jurgens, M. A. Slade, J. D. Giorgini, and D. B. Campbell from Arecibo Observatory radar observations; announced 3 October 2000.

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

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2001-2005, 2008 by Wm. Robert Johnston.
Last modified 21 May 2008.
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