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JPL Small-Body Database Browser
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312489 (2008 WR108)
Classification:
Inner Main-belt Asteroid
SPK-ID:
2312489
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 10
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.07151743377836471
8.2502e-08
a
1.902393518273446
1.7448e-08
au
q
1.766339215809935
1.5653e-07
au
i
20.32702238799583
1.4416e-05
deg
node
255.3608870493193
2.3388e-05
deg
peri
299.4412326422404
9.8663e-05
deg
M
219.1336567821885
9.243e-05
deg
t
p
2458975.519372896300
(2020-May-06.01937290)
0.00024679
TDB
period
958.404762689951
2.62
1.3185e-05
3.61e-08
d
yr
n
.3756241767722328
5.1677e-09
deg/d
Q
2.038447820736958
1.8696e-08
au
Orbit Determination Parameters
# obs. used (total)
136
data-arc span
5968 days (16.34 yr)
first obs. used
2002-07-09
last obs. used
2018-11-10
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.56723
source
ORB
producer
Otto Matic
solution date
2019-Jul-14 11:43:48
Additional Information
Earth MOID
= .799115 au
Jupiter MOID
= 3.03798 au
T_jup
= 3.866
[ show covariance matrix ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
17.0
n/a
MPO450244
312489 (2008 WR108)
Discovered 2008-Nov-30 by CSS at Catalina
Reference:
20120109/Numbers.arc
Last Updated:
2012-01-11
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
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Discovery Circumstances
]
2019-Dec-11 03:58 UT
(server date/time)
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