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JPL Small-Body Database Browser
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243500 (2009 UK139)
Classification:
Main-belt Asteroid
SPK-ID:
2243500
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 10
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.06084976025375615
4.9015e-08
a
3.171613450757202
4.8181e-08
au
q
2.978621532661038
1.5734e-07
au
i
9.227749126273158
1.0101e-05
deg
node
1.008996944255821
3.2448e-05
deg
peri
95.63311435052401
0.0001014
deg
M
203.3964543666868
9.9398e-05
deg
t
p
2459497.965769981651
(2021-Oct-10.46576998)
0.00058105
TDB
period
2063.092989924399
5.65
4.7012e-05
1.287e-07
d
yr
n
.1744952853594796
3.9762e-09
deg/d
Q
3.364605368853365
5.1113e-08
au
Orbit Determination Parameters
# obs. used (total)
316
data-arc span
7105 days (19.45 yr)
first obs. used
2000-03-11
last obs. used
2019-08-24
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.65252
source
ORB
producer
Otto Matic
solution date
2019-Sep-24 04:15:51
Additional Information
Earth MOID
= 2.01427 au
Jupiter MOID
= 1.74998 au
T_jup
= 3.179
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
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Discovery Circumstances
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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.4
n/a
MPO407802
diameter
diameter
4.358
km
0.401
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.077
0.020
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
243500 (2009 UK139)
Discovered 2009-Oct-27 by Mt. Lemmon Survey at Mount Lemmon
Reference:
20100626/Numbers.arc
Last Updated:
2010-06-28
[ show close-approach data ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
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Physical Parameters
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Discovery Circumstances
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Close-Approach Data
]
2019-Dec-06 01:14 UT
(server date/time)
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Ryan S. Park
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