Asteroids with Satellites Database--Johnston's Archive
(5481)
Kiuchi
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: |
2.339257265 AU
| |
orbital period P: |
3.577875156 yr
(= 1306.818901 d)
| |
eccentricity e: |
0.063265229
| |
perihelion distance q: |
2.191263619 AU
| |
aphelion distance Q: |
2.48725091 AU
| |
inclination i: |
5.957471248°
| |
argument of perihelion ω: |
250.4951681°
| |
ascending node Ω: |
326.1140064°
| |
mean anomaly M: |
224.0542347°
| |
perihelion passage TP: |
2015 Sep 28.4902
| |
Epoch: |
2014 May 23
| |
data arc: |
1970-2014
(1074 obs.)
| |
Earth MOID: |
1.19345 AU
| |
Jupiter Tisserand invariant TJ: |
3.555
|
orbital data, secondary:
|
binary dynamical type: | A [L15a] | |
semimajor axis as: |
14
km
[*E]
| |
separation/primary radius as/rp: | 4.1 [*E] | |
separation/Hill radius as/rH: | 0.012 [*E] | |
orbital period Ps: |
0.8708
± 0.0004
d [K08b]
| |
eccentricity es: |
<0.18
[P16d]
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.2
[MPC]
12.98 ± 0.1 [K08b]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
7.22
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: |
1200 km [*E]
|
other data, primary:
|
diameter dp: |
6.86
km [*E]
| |
rotation period RPp: |
3.6196
± 0.0002
h [K08b]
| |
amplitude in mag., rotational ΔM: |
0.1
[K08b]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
2.26
km [*E]
| |
diameter ratio ds/dp: |
0.33
± 0.02
[K08b]
| |
component mag. difference ΔM: |
2.41
± 0.13
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(5481) Kiuchi
--discovery and notes:
Primary discovered
1990 Feb 15
from
Kitami, Hokkaido, Japan
by
K. Endate and K. Watanabe.
Alternate designation(s):
1990 CH,
1970 SR.
Linked to prediscovery observations from 1970 Sep 27.
Permanent number assigned 1993 Mar 08.
Named 1993 Sep 01 for Tsuruhiko Kiuchi (1954-) [MPC022510].
Companion discovered
2008 Mar 13
by P. Kusnirak, P. Pravec, J. Oey, R. Stephens, M. Husarik, and J. Ries
using
lightcurve
observations from Ondrejov Observatory, Czech Republic; Leura, New South Wales, Australia; Goat Mountain Astronomical Research Station, Yucca Valley, California, USA; Skalnate Pleso Observatory; McDonald Observatory, Texas, USA.
Announced
2008 Apr 16 [K08b].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Kusnirak, P., Pravec, P., Oey, J., Stephens, R., Husarik, M., & Ries, J. 2008, Central Bureau Electronic Telegrams (5481) Kiuchi
©
2008-2014, 2019
by Wm. Robert Johnston.
Last modified
29 May 2019.
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