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JPL Small-Body Database Browser
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437123 (2012 US139)
Classification:
Outer Main-belt Asteroid
SPK-ID:
2437123
[
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 12
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.03807919703047759
8.9596e-08
a
3.217655570018236
7.3784e-08
au
q
3.095129829591298
2.9623e-07
au
i
10.96795165274427
9.7368e-06
deg
node
329.2634728830094
4.2177e-05
deg
peri
331.2147322528403
0.00014061
deg
M
128.8915228773687
0.00013212
deg
t
p
2457845.703962264730
(2017-Apr-02.20396226)
0.00078207
TDB
period
2108.180332722315
5.77
7.2514e-05
1.985e-07
d
yr
n
.1707633803485531
5.8737e-09
deg/d
Q
3.340181310445175
7.6594e-08
au
Orbit Determination Parameters
# obs. used (total)
88
data-arc span
6676 days (18.28 yr)
first obs. used
2000-08-30
last obs. used
2018-12-10
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.57313
source
ORB
producer
Otto Matic
solution date
2019-Jul-14 14:52:57
Additional Information
Earth MOID
= 2.08423 au
Jupiter MOID
= 1.87014 au
T_jup
= 3.160
[ show covariance matrix ]
[
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
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.0
n/a
MPO460655
437123 (2012 US139)
Discovered 2009-Jan-20 by Spacewatch at Kitt Peak
Reference:
Last Updated:
2015-06-04
[ show close-approach data ]
Alternate Designations
2012 US139
= 2009 BH191 = 2009 DA11
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-10 08:09 UT
(server date/time)
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