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JPL Small-Body Database Browser
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214493 (2005 US251)
Classification:
Main-belt Asteroid
SPK-ID:
2214493
[
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
.2732713319535329
5.8911e-08
a
3.131810961604865
3.7568e-08
au
q
2.275976808700429
1.8667e-07
au
i
10.57952642565199
9.1214e-06
deg
node
38.67336102895789
3.7766e-05
deg
peri
277.194944512694
4.1704e-05
deg
M
216.2734594080749
1.9054e-05
deg
t
p
2459408.713700927845
(2021-Jul-13.21370093)
0.00011722
TDB
period
2024.37859518321
5.54
3.6426e-05
9.973e-08
d
yr
n
.1778323485817233
3.1998e-09
deg/d
Q
3.987645114509302
4.7834e-08
au
Orbit Determination Parameters
# obs. used (total)
289
data-arc span
7093 days (19.42 yr)
first obs. used
1999-09-05
last obs. used
2019-02-05
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.57645
source
ORB
producer
Otto Matic
solution date
2019-Jul-14 05:31:15
Additional Information
Earth MOID
= 1.29192 au
Jupiter MOID
= 1.55025 au
T_jup
= 3.129
[ 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
15.2
n/a
MPO294357
diameter
diameter
5.259
km
0.169
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.058
0.004
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
214493 (2005 US251)
Discovered 2005-Oct-24 by Spacewatch at Kitt Peak
Reference:
20090509/Numbers.arc
Last Updated:
2009-05-11
[ 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-07 09:32 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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Alan B. Chamberlin