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JPL Small-Body Database Browser
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146678 (2001 UE221)
Classification:
Main-belt Asteroid
SPK-ID:
2146678
[
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 15
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.01265795018575848
6.138e-08
a
2.770330757864261
2.3192e-08
au
q
2.735264049133141
1.7149e-07
au
i
1.367682206901112
4.9768e-06
deg
node
63.0481378358745
0.00023882
deg
peri
106.6357286942847
0.00031121
deg
M
161.2115820318911
0.00019926
deg
t
p
2457846.294662165457
(2017-Apr-02.79466217)
0.00093292
TDB
period
1684.208530170768
4.61
2.1149e-05
5.79e-08
d
yr
n
.2137502533391742
2.6842e-09
deg/d
Q
2.805397466595381
2.3486e-08
au
Orbit Determination Parameters
# obs. used (total)
304
data-arc span
8885 days (24.33 yr)
first obs. used
1992-11-28
last obs. used
2017-03-27
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.59765
source
ORB
producer
Otto Matic
solution date
2018-Oct-04 05:47:20
Additional Information
Earth MOID
= 1.7384 au
Jupiter MOID
= 2.15313 au
T_jup
= 3.337
[ 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
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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.3
n/a
MPO453932
diameter
diameter
4.008
km
0.540
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.033
0.008
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
146678 (2001 UE221)
Discovered 2001-Oct-23 by LINEAR at Socorro
Reference:
20070106/Numbers.arc
Last Updated:
2007-01-09
[ show close-approach data ]
Alternate Designations
2001 UE221
= 2005 QC125
[
Ephemeris
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Orbit Diagram
|
Orbital Elements
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Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-16 13:31 UT
(server date/time)
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