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Asteroids with Satellites Database--Johnston's Archive

(762) Pulcova

compiled by Wm. Robert Johnston
last updated21 September 2014

--Orbital and physical data--

(Seethis page for definitions of quantities; source codes in brackets, seethis link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)

dynamical type, primary:main belt asteroid


orbital data, primary (osculating elements)[JPL]:

semimajor axisa:3.156222142 AU
orbital periodP:5.607374286 yr
(= 2048.093458 d)
eccentricitye:0.102891933
perihelion distanceq:2.83147234 AU
aphelion distanceQ:3.480971941 AU
inclinationi:13.0890117°
argument of perihelionω:189.188587°
ascending nodeΩ:305.764338°
mean anomalyM:208.258441°
perihelion passageTP:2016 Oct 02.2802
Epoch:2014 May 23
data arc:1916-2013(1788 obs.)
Earth MOID:1.84667 AU
Jupiter Tisserand invariantTJ:3.158

orbital data, secondary:

binary dynamical type:L [P07f]
semimajor axisas:703± 14 km[M08d]
separation/primary radiusas/rp:9.9 [*D]
separation/Hill radiusas/rH:0.027 [*D]
orbital periodPs:4.438± 0.001d [M08d]
eccentricityes:0.03± 0.01[M08d]
normalized ang. mom.αL:0.52[P07f]
other data, system (combined):
absolute mag.H:8.28[MPC]
slope parameterG:(0.15) [*A]
effective diameterdE:143 km [*D]
geometric albedo:0.043± 0.009[M11b]
color indexU-B:0.345[T95a]
color indexB-V:0.658[T95a]
taxonomic type:F (Tholen) [JPL]
massm:1.4x1018 ± 1x1017kg [M08d]
densityρ:0.9± 0.1 g/cm3[M08d]
Hill radiusrH:26000 km [*D]

other data, primary:

diameterdp:141.72± 1.54 km [M11b]
rotation periodRPp:5.839± 0.000h [D01a]
amplitude in mag., rotationalΔM:?
pole directionΒ, λ:?,?

other data, secondary:

diameterds:19± 7km [M08d]
diameter ratiods/dp:0.134± 0.049 [*D]
component mag. differenceΔM:4.4 [* D]
rotation periodRPs:?

--(762) Pulcova --discovery and notes:

Primary discovered1913 Sep 03from Simeïs, Crimea, Russiaby G. N. Neujmin.Alternate designation(s):1913 SQ, 1952 QM1.Permanent number assigned -.

Named - for Pulkovo, Russia.

Companion discovered2000 Feb 22usingadaptive optics telescope observations.Announced2000 Oct 24.

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


©2001-2010, 2014by Wm. Robert Johnston.
Last modified21 September 2014.
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