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JPL Small-Body Database Browser
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233877 (2008 WY78)
Classification:
Main-belt Asteroid
SPK-ID:
2233877
[
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 16
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1716109631933958
6.9286e-08
a
2.566219614070179
2.584e-08
au
q
2.125828194333811
1.8304e-07
au
i
6.241450008189164
6.2441e-06
deg
node
110.3923288199491
5.075e-05
deg
peri
176.8415851862335
5.3082e-05
deg
M
315.8943389708878
1.6462e-05
deg
t
p
2458784.463215311759
(2019-Oct-27.96321531)
6.9327e-05
TDB
period
1501.547782460851
4.11
2.2679e-05
6.209e-08
d
yr
n
.2397526100767866
3.6212e-09
deg/d
Q
3.006611033806546
3.0274e-08
au
Orbit Determination Parameters
# obs. used (total)
287
data-arc span
6276 days (17.18 yr)
first obs. used
2002-03-05
last obs. used
2019-05-11
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.58921
source
ORB
producer
Otto Matic
solution date
2019-May-30 08:32:20
Additional Information
Earth MOID
= 1.10884 au
Jupiter MOID
= 2.15975 au
T_jup
= 3.403
[ 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
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.3
n/a
MPO437098
diameter
diameter
2.976
km
0.884
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.060
0.049
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
233877 (2008 WY78)
Discovered 2008-Nov-20 by Spacewatch at Kitt Peak
Reference:
20100228/Numbers.arc
Last Updated:
2010-03-03
[ 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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Discovery Circumstances
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Close-Approach Data
]
2019-Dec-10 21:54 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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Alan B. Chamberlin