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JPL Small-Body Database Browser
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249285 (2008 SP304)
Classification:
Main-belt Asteroid
SPK-ID:
2249285
[
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 14
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1162373960917603
7.3616e-08
a
2.341002959895021
1.981e-08
au
q
2.06889087159372
1.7073e-07
au
i
2.258814339328543
7.4186e-06
deg
node
59.82414553144807
0.00015021
deg
peri
160.5420116140082
0.00015184
deg
M
142.2282963630778
2.5099e-05
deg
t
p
2458083.625771900071
(2017-Nov-26.12577190)
8.8277e-05
TDB
period
1308.282014719254
3.58
1.6606e-05
4.546e-08
d
yr
n
.2751700290531419
3.4927e-09
deg/d
Q
2.613115048196322
2.2112e-08
au
Orbit Determination Parameters
# obs. used (total)
171
data-arc span
6091 days (16.68 yr)
first obs. used
2003-03-24
last obs. used
2019-11-26
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.58688
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 18:47:07
Additional Information
Earth MOID
= 1.06091 au
Jupiter MOID
= 2.35795 au
T_jup
= 3.554
[ 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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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
17.5
n/a
MPO454847
diameter
diameter
1.491
km
0.350
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.079
0.081
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
249285 (2008 SP304)
Discovered 2008-Sep-24 by Spacewatch at Kitt Peak
Reference:
20100824/Numbers.arc
Last Updated:
2010-08-27
Alternate Designations
2008 SP304
= 2004 RY122 = 2005 WO101
[
Ephemeris
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Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2019-Dec-06 00:54 UT
(server date/time)
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Ryan S. Park
Webmaster
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