Asteroids with Satellites Database--Johnston's Archive
(97034)
1999 UK7
compiled by Wm. Robert Johnston
last updated
19 March 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:
Mars crossing asteroid
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
1.8528585535 AU
| |
orbital period P: |
2.52215401 yr
(= 921.2167522 d)
| |
eccentricity e: |
0.268032791
| |
perihelion distance q: |
1.356231704 AU
| |
aphelion distance Q: |
2.349485403 AU
| |
inclination i: |
24.1880367°
| |
argument of perihelion ω: |
202.3960167°
| |
ascending node Ω: |
336.8863342°
| |
mean anomaly M: |
349.6714287°
| |
perihelion passage TP: |
2023 Mar 23.430147
| |
Epoch: |
2023 Feb 25
| |
data arc: |
1999-2023
(1976 obs.)
| |
Earth MOID: |
0.379435 AU
| |
Jupiter Tisserand invariant TJ: |
3.857
|
orbital data, secondary:
|
semimajor axis as: |
5.6
km
[*E]
| |
separation/primary radius as/rp: | 3.3 [*E] | |
separation/Hill radius as/rH: | 0.016 [*E] | |
orbital period Ps: |
0.6488
± 0.0012
d [B23h]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
14.87
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
3.50
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: |
360 km [*E]
|
other data, primary:
|
diameter dp: |
3.41
km [*E]
| |
rotation period RPp: |
2.3757
± 0.0005
h [B23h]
| |
amplitude in mag., rotational ΔM: |
0.06
[B23h]
| |
amplitude in mag., mutual events ΔM: | 0.06 [B23h] | |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
>0.82
km [*E]
| |
diameter ratio ds/dp: |
>0.24
[B23h]
| |
component mag. difference ΔM: |
<3.1
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(97034) 1999 UK7
--discovery and notes:
Primary discovered
1999 Oct 30
from
Socorro, New Mexico, USA
by
LINEAR Program.
Alternate designation(s):
2001 OZ20.
Linked to prediscovery observations from 1999 Sep 28.
Permanent number assigned 2005 Feb 24.
Companion discovered
2023 Feb 15
by V. Benishek, P. Pravec, A. Marchini, and R. Papini
using
lightcurve
observations from Sopot Observatory, Serbia; Astronomical Observatory of the University of Siena, Italy.
Announced
2023 Mar 12 [B23h].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2023
by Wm. Robert Johnston.
Last modified
19 March 2023.
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