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JPL Small-Body Database Browser
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312870 (2011 UA161)
Classification:
Main-belt Asteroid
SPK-ID:
2312870
[
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 11
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.05069826445785926
8.0803e-08
a
2.875181105782804
4.7027e-08
au
q
2.729414413717588
2.4208e-07
au
i
11.11756208349189
9.6191e-06
deg
node
244.7713629343323
2.9667e-05
deg
peri
161.2299474724846
7.9553e-05
deg
M
202.2999129453702
7.6768e-05
deg
t
p
2459380.555795609320
(2021-Jun-15.05579561)
0.00039091
TDB
period
1780.722456558154
4.88
4.3689e-05
1.196e-07
d
yr
n
.2021651373430879
4.96e-09
deg/d
Q
3.020947797848021
4.9411e-08
au
Orbit Determination Parameters
# obs. used (total)
145
data-arc span
6513 days (17.83 yr)
first obs. used
2001-10-20
last obs. used
2019-08-20
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.63634
source
ORB
producer
Otto Matic
solution date
2019-Sep-24 06:02:30
Additional Information
Earth MOID
= 1.74175 au
Jupiter MOID
= 2.28096 au
T_jup
= 3.267
[ 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
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.3
n/a
MPO437380
312870 (2011 UA161)
Discovered 2001-Oct-20 by NEAT at Palomar
Reference:
20120109/Numbers.arc
Last Updated:
2012-01-11
[ show close-approach data ]
Alternate Designations
2011 UA161
= 2010 JJ86
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-09 11:00 UT
(server date/time)
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