Asteroids with Satellites Database--Johnston's Archive
(6764)
Kirillavrov
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: |
2.2594076665 AU
| |
orbital period P: |
3.396253503 yr
(= 1240.4815918 d)
| |
eccentricity e: |
0.139105602
| |
perihelion distance q: |
1.945111403 AU
| |
aphelion distance Q: |
2.5737039296 AU
| |
inclination i: |
7.04728349°
| |
argument of perihelion ω: |
242.718733°
| |
ascending node Ω: |
18.1089392°
| |
mean anomaly M: |
47.2691409°
| |
perihelion passage TP: |
2021 Aug 11.120836
| |
Epoch: |
2022 Jan 21
| |
data arc: |
1971-2021
(3895 obs.)
| |
Earth MOID: |
0.943285 AU
| |
Jupiter Tisserand invariant TJ: |
3.598
|
orbital data, secondary:
|
semimajor axis as: |
14
km
[*E]
| |
separation/primary radius as/rp: | 5.3 [*E] | |
separation/Hill radius as/rH: | 0.017 [*E] | |
orbital period Ps: |
1.2671
± 0.0004
d [P22b]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.26
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
5.29
± 0.09
km [M11b]
| |
geometric albedo: |
0.399
± 0.046
[M11b]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
800 km [*E]
|
other data, primary:
|
diameter dp: |
5.29
± 0.09
km [M11b]
| |
rotation period RPp: |
4.739
± 0.001
h [P22b]
| |
amplitude in mag., rotational ΔM: |
0.08
± 0.03
[P22b]
| |
amplitude in mag., mutual events ΔM: | 0.25 ±0.06 [P22b] | |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
?
| |
diameter ratio ds/dp: |
?
| |
component mag. difference ΔM: |
?
| |
rotation period RPs: |
?
| |
|
|
--
(6764) Kirillavrov
--discovery and notes:
Primary discovered
1981 Oct 07
from
Crimean Astrophysical Observatory, Ukraine, USSR
by
L. I. Chernykh.
Alternate designation(s):
1981 TM3,
1971 TV1, 1980 FE10, 1991 RO.
Linked to prediscovery observations from 1971 Oct 12.
Permanent number assigned 1996 Jan 05.
Named 2000 Jan 24 for Kirill Yur'evich Lavrov (1925-2007) [MPC038195].
Companion discovered
2021 Apr 13
by T. Polakis, J. Oey, and M. Colazo
using
lightcurve
observations from Blue Mountains Observatory, Leura, New South Wales, Australia; Argentina.
Announced
2022 Apr [P22b].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2022
by Wm. Robert Johnston.
Last modified
30 April 2022.
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