Asteroids with Satellites Database--Johnston's Archive
(5781)
Barkhatova
compiled by Wm. Robert Johnston
last updated
11 May 2023
--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: |
2.1365483603 AU
| |
orbital period P: |
3.1230381784 yr
(= 1140.6896947 d)
| |
eccentricity e: |
0.037819584
| |
perihelion distance q: |
2.05574499 AU
| |
aphelion distance Q: |
2.2173517303 AU
| |
inclination i: |
2.70966506°
| |
argument of perihelion ω: |
171.26818°
| |
ascending node Ω: |
259.01734°
| |
mean anomaly M: |
87.813462°
| |
perihelion passage TP: |
2022 May 22.755802
| |
Epoch: |
2023 Feb 25
| |
data arc: |
1951-2023
(3775 obs.)
| |
Earth MOID: |
1.06854 AU
| |
Jupiter Tisserand invariant TJ: |
3.715
|
orbital data, secondary:
|
semimajor axis as: |
16
km
[*E]
| |
separation/primary radius as/rp: | 5.9 [*E] | |
separation/Hill radius as/rH: | 0.018 [*E] | |
orbital period Ps: |
1.502
± 0.002
d [B23k]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.73
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
5.65
± 0.03
km [M**]
| |
geometric albedo: |
0.242
± 0.022
[M**]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
880 km [*E]
|
other data, primary:
|
diameter dp: |
5.47
± 0.03
km [*D]
| |
rotation period RPp: |
2.8161
± 0.0001
h [B23k]
| |
amplitude in mag., rotational ΔM: |
0.12
[B23k]
| |
amplitude in mag., mutual events ΔM: | 0.105 ±0.035 [B23k] | |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
>1.42
km [*D]
| |
diameter ratio ds/dp: |
>0.26
[B23k]
| |
component mag. difference ΔM: |
<2.9
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(5781) Barkhatova
--discovery and notes:
Primary discovered
1990 Sep 24
from
Nauchnyj, Crimea, Ukraine, USSR
by
G. R. Kastel’ and L. V. Zhuravleva.
Alternate designation(s):
1990 SM28,
1965 UD1, 1970 EU3, 1981 YF1, 1984 WN4, 1987 UL9.
Linked to prediscovery observations from 1951 Feb 10.
Permanent number assigned 1993 Nov 29.
Named 1994 Oct 19 for Claudia Alexandrovna Barkhatova (1917-1990) [MPC024123].
Companion discovered
2023 Mar 14
by V. Benishek, P. Pravec, and R. Durkee
using
lightcurve
observations from Sopot Observatory, Serbia; Shed of Science South Observatory, Pontotoc, Texas, USA.
Announced
2023 May 11 [B23k].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2023
by Wm. Robert Johnston.
Last modified
11 May 2023.
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