Asteroids with Satellites Database--Johnston's Archive
(5474)
Gingasen
compiled by Wm. Robert Johnston
last updated
29 May 2019
--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: |
2.382913175 AU
| |
orbital period P: |
3.678498048 yr
(= 1343.571412 d)
| |
eccentricity e: |
0.067449239
| |
perihelion distance q: |
2.222187495 AU
| |
aphelion distance Q: |
2.543638855 AU
| |
inclination i: |
6.145410296°
| |
argument of perihelion ω: |
256.9426598°
| |
ascending node Ω: |
247.0358836°
| |
mean anomaly M: |
257.3402528°
| |
perihelion passage TP: |
2015 Jun 10.1408
| |
Epoch: |
2014 May 23
| |
data arc: |
1971-2013
(1123 obs.)
| |
Earth MOID: |
1.24441 AU
| |
Jupiter Tisserand invariant TJ: |
3.526
|
orbital data, secondary:
|
semimajor axis as: |
?
| |
orbital period Ps: |
?
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
5.05
± 0.48
km [M12b]
| |
geometric albedo: |
0.48
± 0.109
[M12b]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
790 km [*E]
|
other data, primary:
|
diameter dp: |
4.14
± 0.67
km [*D]
| |
rotation period RPp: |
3.6242
± 0.0003
h [H08a]
| |
amplitude in mag., rotational ΔM: |
0.18
± 0.02
[H08a]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
2.9
± 0.87
km [*D]
| |
diameter ratio ds/dp: |
0.7
± 0.2
[W17a]
| |
component mag. difference ΔM: |
0.77
± 0.64
[*D]
| |
rotation period RPs: |
3.1095
± 0.0009
h [H08a]
| |
|
|
--
(5474) Gingasen
--discovery and notes:
Primary discovered
1988 Dec 03
from
Kitami, Hokkaido, Japan
by
T. Fujii and K. Watanabe.
Alternate designation(s):
1988 XE1,
1955 YK, 1971 BO2.
Linked to prediscovery observations from 1971 Jan 27.
Permanent number assigned 1993 Mar 08.
Named 1996 Apr 04 for a railroad in Hokkaido, Japan [MPC026930].
Companion discovered
2008 Mar 07
using
lightcurve
observations.
Announced
2008 Oct .
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Higgins, David, Pravec, Petr, Kusnirak, Peter, Hornoch, Kamil, Pray, Donald P., Vilagi, Jozef, Kornos, Leonard, Gajdos, Sefan, Husarik, Marek, Pikler, Michal, & Cervak, Gabriel 2008, Minor Planet Bulletin Asteroid Lightcurve Analysis of Suspected Binary Asteroids
- Sada, Pedro V. 2008, Minor Planet Bulletin CCD Photometry of Three Short-period Asteroids from the Universidad de Monterry Observatory
©
2011-2014, 2019
by Wm. Robert Johnston.
Last modified
29 May 2019.
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