Asteroids with Satellites Database--Johnston's Archive
(6100)
Kunitomoikkansai
compiled by Wm. Robert Johnston
last updated
30 April 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: |
2.3298171814 AU
| |
orbital period P: |
3.55617206 yr
(= 1298.9163766 d)
| |
eccentricity e: |
0.133955877
| |
perihelion distance q: |
2.01772448 AU
| |
aphelion distance Q: |
2.641909886 AU
| |
inclination i: |
3.399468°
| |
argument of perihelion ω: |
69.227626°
| |
ascending node Ω: |
303.859376°
| |
mean anomaly M: |
296.556643°
| |
perihelion passage TP: |
2019 Dec 11.910043
| |
Epoch: |
2019 Apr 27
| |
data arc: |
1950-2018
(1510 obs.)
| |
Earth MOID: |
1.02006 AU
| |
Jupiter Tisserand invariant TJ: |
3.557
|
orbital data, secondary:
|
semimajor axis as: |
7
km
[*E]
| |
separation/primary radius as/rp: | 3.7 [*E] | |
separation/Hill radius as/rH: | 0.010 [*E] | |
orbital period Ps: |
0.7692
± 0.0008
d [C18a]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.5
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
4.06
± 0.19
km [M11b]
| |
geometric albedo: |
0.468
± 0.156
[M11b]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
700 km [*E]
|
other data, primary:
|
diameter dp: |
3.8
km [*D]
| |
rotation period RPp: |
4.3018
± 0.0011
h [C18a]
| |
amplitude in mag., rotational ΔM: |
0.11
[C18a]
| |
amplitude in mag., mutual events ΔM: | 0.21 ±0.06 [C18a] | |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
>1.44
km [*D]
| |
diameter ratio ds/dp: |
>0.38
[C18a]
| |
component mag. difference ΔM: |
<2.1
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(6100) Kunitomoikkansai
--discovery and notes:
Primary discovered
1991 Nov 09
from
Dynic Astronomical Observatory, Kyoto, Japan
by
A. Sugie.
Alternate designation(s):
1991 VK4,
1987 RB2, 1987 SB16.
Linked to prediscovery observations from 1950 Apr 17.
Permanent number assigned 1994 Sep 19.
Named 1998 Dec 08 for Ikkansai Kunitomo (1778-1840) [MPC033385].
Companion discovered
2016 Dec
by M. Conjat, F. Colas, R. Montaigut, R. Behrend, M. Devogele, B. Carry, D. Vernet, and J.-P. Rivet
using
lightcurve
observations from Nice Observatory, Pic du Midi Observatory, and Calern Observatory.
Announced
2018 Oct 23 [C18a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2018, 2022
by Wm. Robert Johnston.
Last modified
30 April 2022.
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