Asteroids with Satellites Database--Johnston's Archive

(7369) Gavrilin

compiled by Wm. Robert Johnston
last updated 21 September 2014

--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: Mars crossing asteroid


orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 2.370459627 AU
orbital period P: 3.649698985 yr
(= 1333.052554 d)
eccentricity e: 0.318396091
perihelion distance q: 1.61571455 AU
aphelion distance Q: 3.125204706 AU
inclination i: 21.816668°
argument of perihelion ω: 113.133971°
ascending node Ω: 278.356932°
mean anomaly M: 320.253253°
perihelion passage TP: 2014 Oct 17.17917
Epoch: 2014 May 23
data arc: 1975-2013 (623 obs.)
Earth MOID: 0.737162 AU
Jupiter Tisserand invariant TJ: 3.383


orbital data, secondary:
semimajor axis as: 27 km [*E]
separation/primary radius as/rp:7.2 [*E]
separation/Hill radius as/rH:0.028 [*E]
orbital period Ps: 2.047 ± 0.0008 d [H08a]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 13.1 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 7.92 km [*E]
geometric albedo: (0.16 ) [*A]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 960 km [*E]

other data, primary:
diameter dp: 7.54 km [*E]
rotation period RPp: 49.12 ± 0.02 h [H08a]
amplitude in mag., rotational ΔM: 0.246 ± 0.02 [H08a]
amplitude in mag., mutual events ΔM:0.12 [H08a]
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 2.41 km [*E]
diameter ratio ds/dp: >0.32 [H08a]
component mag. difference ΔM: <2.5 [*D]
rotation period RPs: 49.12 ± 0.02 h [H08a]

-- (7369) Gavrilin --discovery and notes:

Primary discovered 1975 Jan 13 from Nauchnyj, Crimea, Ukraine, USSR by T. M. Smirnova. Alternate designation(s): 1975 AN, 1975 AX, 1985 YU, 1986 AG. Linked to prediscovery observations from 1975 Jan 04. Permanent number assigned 1997 Jan 23.

Named 2000 Jan 24 for Valerij Aleksandrovich Gavrilin (1939-1999) [MPC38196].

Companion discovered 2007 Dec 28 using lightcurve observations. Announced 2008 Oct .

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2011-2012, 2014 by Wm. Robert Johnston.
Last modified 21 September 2014.
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