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JPL Small-Body Database Browser
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243295 (2008 EP9)
Classification:
Main-belt Asteroid
SPK-ID:
2243295
[
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 13
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1897550152106864
6.9545e-08
a
3.196083624897339
4.7102e-08
au
q
2.589610728040319
2.132e-07
au
i
12.72508961754203
5.8722e-06
deg
node
142.592891160724
3.2847e-05
deg
peri
98.59256267662411
3.6477e-05
deg
M
258.2209233025791
1.7199e-05
deg
t
p
2459190.540243993092
(2020-Dec-07.04024399)
0.00010714
TDB
period
2087.015275929457
5.71
4.6136e-05
1.263e-07
d
yr
n
.1724951437356745
3.8132e-09
deg/d
Q
3.80255652175436
5.604e-08
au
Orbit Determination Parameters
# obs. used (total)
173
data-arc span
5368 days (14.70 yr)
first obs. used
2003-04-01
last obs. used
2017-12-11
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.60379
source
ORB
producer
Otto Matic
solution date
2018-Oct-04 09:32:04
Additional Information
Earth MOID
= 1.61567 au
Jupiter MOID
= 1.49935 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
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.8
n/a
MPO433594
diameter
diameter
4.491
km
1.683
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.038
0.014
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
243295 (2008 EP9)
Discovered 2008-Mar-01 by Spacewatch at Kitt Peak
Reference:
20100626/Numbers.arc
Last Updated:
2010-06-28
[ 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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Close-Approach Data
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2019-Dec-16 00:02 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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Alan B. Chamberlin