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JPL Small-Body Database Browser
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312387 (2008 EX138)
Classification:
Main-belt Asteroid
SPK-ID:
2312387
[
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
.06475921451357727
8.1305e-08
a
3.103367478358295
4.801e-08
au
q
2.902395838112831
2.7607e-07
au
i
9.730027447310707
9.2494e-06
deg
node
210.5442732275963
3.3209e-05
deg
peri
44.35468216929065
7.6318e-05
deg
M
311.6378891208717
6.6226e-05
deg
t
p
2458868.756949383385
(2020-Jan-20.25694938)
0.00036897
TDB
period
1996.862833787026
5.47
4.6338e-05
1.269e-07
d
yr
n
.1802827885364887
4.1835e-09
deg/d
Q
3.304339118603759
5.1119e-08
au
Orbit Determination Parameters
# obs. used (total)
152
data-arc span
5814 days (15.92 yr)
first obs. used
2003-05-25
last obs. used
2019-04-25
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.61041
source
ORB
producer
Otto Matic
solution date
2019-Jul-14 10:52:49
Additional Information
Earth MOID
= 1.8979 au
Jupiter MOID
= 1.71645 au
T_jup
= 3.196
[ 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
16.0
n/a
MPO437379
312387 (2008 EX138)
Discovered 2008-Mar-11 by Spacewatch at Kitt Peak
Reference:
20120109/Numbers.arc
Last Updated:
2012-01-11
[ show close-approach data ]
Alternate Designations
2008 EX138
= 2005 UJ259
[
Ephemeris
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Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-11 23:23 UT
(server date/time)
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