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JPL Small-Body Database Browser
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249157 (2008 BU9)
Classification:
Main-belt Asteroid
SPK-ID:
2249157
[
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
.05671269273024208
1.1468e-07
a
3.118163529293294
4.9207e-08
au
q
2.941324079173836
3.5693e-07
au
i
4.190658791361562
1.1694e-05
deg
node
15.331401673216
0.00013278
deg
peri
295.1695858567276
0.00016312
deg
M
204.7898048564875
0.00010004
deg
t
p
2459467.590648662461
(2021-Sep-10.09064866)
0.00056525
TDB
period
2011.160627881817
5.51
4.7607e-05
1.303e-07
d
yr
n
.179001117568196
4.2372e-09
deg/d
Q
3.295002979412752
5.1998e-08
au
Orbit Determination Parameters
# obs. used (total)
157
data-arc span
6699 days (18.34 yr)
first obs. used
2000-11-02
last obs. used
2019-03-07
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.67223
source
ORB
producer
Otto Matic
solution date
2019-Jul-14 10:11:42
Additional Information
Earth MOID
= 1.92951 au
Jupiter MOID
= 1.87747 au
T_jup
= 3.210
[ 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
15.8
n/a
MPO433632
diameter
diameter
4.091
km
2.157
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.046
0.027
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
249157 (2008 BU9)
Discovered 2008-Jan-16 by Spacewatch at Kitt Peak
Reference:
20100824/Numbers.arc
Last Updated:
2010-08-27
[ show close-approach data ]
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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
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2019-Dec-16 02:29 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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