Asteroids with Satellites Database--Johnston's Archive
(7792)
1995 WZ3
compiled by Wm. Robert Johnston
last updated
3 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: |
2.2976089592 AU
| |
orbital period P: |
3.4826848288 yr
(= 1272.0746584 d)
| |
eccentricity e: |
0.148236099
| |
perihelion distance q: |
1.95702037 AU
| |
aphelion distance Q: |
2.6381975482 AU
| |
inclination i: |
7.1953555°
| |
argument of perihelion ω: |
142.809541°
| |
ascending node Ω: |
61.474128°
| |
mean anomaly M: |
314.889501°
| |
perihelion passage TP: |
2021 May 25.399787
| |
Epoch: |
2021 Jul 01
| |
data arc: |
1976-2021
(2496 obs.)
| |
Earth MOID: |
0.956763 AU
| |
Jupiter Tisserand invariant TJ: |
3.569
|
orbital data, secondary:
|
semimajor axis as: |
14
km
[*E]
| |
separation/primary radius as/rp: | 3.9 [*E] | |
separation/Hill radius as/rH: | 0.013 [*E] | |
orbital period Ps: |
0.8004
± 0.0002
d [P21e]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.07
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
7.45
± 0.05
km [M14c]
| |
geometric albedo: |
0.242
± 0.045
[M14c]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
1100 km [*E]
|
other data, primary:
|
diameter dp: |
7.21
± 0.05
km [*D]
| |
rotation period RPp: |
3.15996
± 0.00012
h [P21e]
| |
amplitude in mag., rotational ΔM: |
0.21
[P21e]
| |
amplitude in mag., mutual events ΔM: | 0.1 ±0.03 [P21e] | |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
1.87
± 0.14
km [*D]
| |
diameter ratio ds/dp: |
0.26
± 0.02
[P21e]
| |
component mag. difference ΔM: |
2.93
± 0.17
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(7792) 1995 WZ3
--discovery and notes:
Primary discovered
1995 Nov 18
from
Nachi-Katsurra
by
Y. Shimizu and T. Urata.
Alternate designation(s):
1976 KF1, 1977 SO2, 1991 VL14.
Linked to prediscovery observations from 1976 May 29.
Permanent number assigned 1997 Nov 14.
Companion discovered
2021 Mar 14
by Pray, D., P. Pravec, V. Benishek, M. Deldem, A. Marchini, R. Papini, and R. Durkee
using
lightcurve
observations from Sugarloaf Mountain Observatory; Sopot Observatory, Serbia; Les Barres Observatory, Lamanon, France; Astronomical Observatory of the University of Siena; Shed of Science South Observatory, Pontotoc, Texas, USA.
Announced
2021 Jun 20 [P21e].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2021, 2022
by Wm. Robert Johnston.
Last modified
3 May 2022.
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