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418849 (2008 WM64)
Classification:
Apollo
[
NEO, PHA
]
SPK-ID:
2418849
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference:
JPL 73
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1064624441899445
5.412e-08
a
1.005386557340264
4.6304e-10
au
q
.8983506470901059
5.4355e-08
au
i
33.52701732430292
1.3344e-05
deg
node
91.45011557055258
1.1577e-06
deg
peri
256.604424538071
3.2969e-06
deg
M
242.5469801773
9.3028e-06
deg
t
p
2459120.632281384416
(2020-Sep-28.13228138)
9.5611e-06
TDB
period
368.2120848290982
1.01
2.5437e-07
6.964e-10
d
yr
n
.9776974054697045
6.7543e-10
deg/d
Q
1.112422467590423
5.1233e-10
au
Orbit Determination Parameters
# obs. used (total)
290
# delay obs. used
3
# Doppler obs. used
3
data-arc span
4430 days (12.13 yr)
first obs. used
2008-11-24
last obs. used
2021-01-10
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.36033
source
ORB
producer
Otto Matic
solution date
2021-Jan-11 05:22:27
Additional Information
Earth MOID
= .0350651 au
Jupiter MOID
= 4.09637 au
T_jup
= 5.904
[ show covariance matrix ]
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Ephemeris
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Orbit Diagram
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Orbital Elements
|
Mission Design
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Physical Parameters
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|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
20.6
n/a
MPO434525
rotation period
rot_per
2.4055
h
n/a
LCDB (Rev. 2020-October); Warner et al., 2009
Published Reference List:
[Rowe, B. (2018) Minor Planet Bull. 45, 292-294.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 138-147.]
418849 (2008 WM64)
Discovered 2008-Nov-24 by Mt. Lemmon Survey at Mount Lemmon
Reference:
Last Updated:
2015-01-07
[ show close-approach data ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2021-Jan-16 08:50 UT
(server date/time)
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