Asteroids with Satellites Database--Johnston's Archive

(6177) Fecamp

compiled by Wm. Robert Johnston
last updated 22 May 2022

--Orbital and physical data--

(See this page for definitions of quantities; source codes in brackets, see this 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 axis a: 2.2034576646 AU
orbital period P: 3.270884949 yr
(= 1194.6907276 d)
eccentricity e: 0.076169032
perihelion distance q: 2.035622427 AU
aphelion distance Q: 2.3712929026 AU
inclination i: 5.6822919°
argument of perihelion ω: 140.085807°
ascending node Ω: 1.057645°
mean anomaly M: 6.798498°
perihelion passage TP: 2021 Dec 29.438605
Epoch: 2022 Jan 21
data arc: 1950-2022 (3020 obs.)
Earth MOID: 1.05134 AU
Jupiter Tisserand invariant TJ: 3.653

orbital data, secondary:
semimajor axis as: 9.5 km [*E]
separation/primary radius as/rp:4.3 [*E]
separation/Hill radius as/rH:0.013 [*E]
orbital period Ps: 0.921 ± 0.0002 d [B22e]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 13.65 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 4.80 ± 0.15 km [M11b]
geometric albedo: 0.368 ± 0.05 [M11b]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 720 km [*E]

other data, primary:
diameter dp: 4.46 ± 0.14 km [*D]
rotation period RPp: 4.4559 ± 0.0003 h [B22e]
amplitude in mag., rotational ΔM: 0.14 [B22e]
amplitude in mag., mutual events ΔM:0.24 ±0.08 [B22e]
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: 1.78 ± 0.11 km [*D]
diameter ratio ds/dp: 0.4 ± 0.02 [B22e]
component mag. difference ΔM: 1.99 ± 0.11 [*D]
rotation period RPs: ?

-- (6177) Fecamp --discovery and notes:

Primary discovered 1986 Feb 12 from European Southern Observatory, La Silla, Chile by H. Debehogne. Alternate designation(s): 1986 CE2, 1978 YO, 1983 GJ2, 1991 VK3. Linked to prediscovery observations from 1950 Apr 17. Permanent number assigned 1994 Dec 18.

Named 2017 Feb 12 for the town of Fecamp, Normandy, France [MPC103029].

Companion discovered 2022 Feb 14 by V. Benishek, P. Pravec, M. Husarik, G. Cervak, M. Pikler, R. Durkee, A. Leroy, and P. Sogorb using lightcurve observations from Sopot Observatory, Serbia; Skalnate Pleso Observatory, Slovakia; Shed of Science South Observatory, Pontotoc, Texas, USA; Uranoscope de l’Ile de France, France; Bastidan Observatory, France. Announced 2022 May 12 [B22e].

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--Links to ADS abstracts:

© 2022 by Wm. Robert Johnston.
Last modified 22 May 2022.
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