Asteroids with Satellites Database--Johnston's Archive

(7132) Casulli

compiled by Wm. Robert Johnston
last updated 14 June 2020

--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: 2.3090121871 AU
orbital period P: 3.5086442618 yr
(= 1281.5562042 d)
eccentricity e: 0.209439339
perihelion distance q: 1.8254142 AU
aphelion distance Q: 2.7926101739 AU
inclination i: 5.4898663°
argument of perihelion ω: 245.664929°
ascending node Ω: 321.138043°
mean anomaly M: 357.9229108°
perihelion passage TP: 2020 Jan 07.394187
Epoch: 2020 May 31
data arc: 1954-2020 (2226 obs.)
Earth MOID: 0.829774 AU
Jupiter Tisserand invariant TJ: 3.55


orbital data, secondary:
semimajor axis as: 26 km [*E]
separation/primary radius as/rp:5.9 [*E]
separation/Hill radius as/rH:0.021 [*E]
orbital period Ps: 1.5225 ± 0.0008 d [F20a]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 13.6 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 9.02 ± 0.06 km [M**]
geometric albedo: 0.089 ± 0.003 [M**]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 1300 km [*E]

other data, primary:
diameter dp: 8.83 ± 0.09 km [*D]
rotation period RPp: 3.5238 ± 0.0002 h [F20a]
amplitude in mag., rotational ΔM: 0.14 [F20a]
amplitude in mag., mutual events ΔM:0.135 ±0.025 [F20a]
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 1.85 ± 0.35 km [*D]
diameter ratio ds/dp: 0.21 ± 0.04 [F20a]
component mag. difference ΔM: 3.39 ± 0.42 [*D]
rotation period RPs: ?

-- (7132) Casulli --discovery and notes:

Primary discovered 1993 Sep 17 from Stroncone by A. Vagnozzi. Alternate designation(s): 1993 SE, 1936 HN, 1954 OX. Linked to prediscovery observations from 1936. Permanent number assigned 1996 Aug 28.

Named 1997 Oct 16 for Silvano Casulli (1944-2018) [MPC030800].

Companion discovered 2020 Feb 20 by L. Franco, A. Marchini, G. Bonnoli, R. Papini, P. Bacci, M. Maestripieri, N. Ruocco, N. Montigiani, M. Mannucci, and G. Scarfi using lightcurve observations from Italy. Announced 2020 Mar 25 [F20a].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2020 by Wm. Robert Johnston.
Last modified 14 June 2020.
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