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JPL Small-Body Database Browser
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305507 (2008 EK117)
Classification:
Main-belt Asteroid
SPK-ID:
2305507
[
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 8
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.106712299579508
5.4069e-08
a
3.066639197093908
3.3061e-08
au
q
2.739391076391361
1.595e-07
au
i
11.79194848998428
8.0696e-06
deg
node
15.18025102840038
3.2075e-05
deg
peri
132.9695126690804
5.8294e-05
deg
M
58.83997161089565
4.5316e-05
deg
t
p
2458279.900822182601
(2018-Jun-10.40082218)
0.00024708
TDB
period
1961.518689667271
5.37
3.172e-05
8.684e-08
d
yr
n
.1835312617189827
2.9679e-09
deg/d
Q
3.393887317796455
3.6589e-08
au
Orbit Determination Parameters
# obs. used (total)
148
data-arc span
6823 days (18.68 yr)
first obs. used
2000-09-24
last obs. used
2019-05-31
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.65853
source
ORB
producer
Otto Matic
solution date
2019-Sep-24 05:54:49
Additional Information
Earth MOID
= 1.76499 au
Jupiter MOID
= 1.62782 au
T_jup
= 3.191
[ hide covariance matrix ]
Orbital Elements at Epoch 2457277.5 (2015-Sep-12.0) TDB
Reference:
JPL 8
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1069198049691328
5.3903e-08
q
2.739336928659484
1.5915e-07
au
t
p
2456315.039785767602
(2013-Jan-22.53978577)
0.0002499
TDB
node
15.19034435152764
3.2066e-05
deg
peri
132.3971682884005
5.8249e-05
deg
i
11.79346663243483
8.0694e-06
deg
Orbit Determination Parameters
# obs. used (total)
148
data-arc span
6823 days (18.68 yr)
first obs. used
2000-09-24
last obs. used
2019-05-31
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.65853
source
ORB
producer
Otto Matic
solution date
2019-Sep-24 05:54:49
Additional Information
Jupiter MOID
= 1.62782 au
T_jup
= 3.191
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
2.905512906755086E-15
-8.440899185610064E-15
1.826615113052709E-12
-1.359025345726447E-14
4.209820789028404E-13
-1.018056300059108E-14
q
-8.440899185610064E-15
2.53277667135229E-14
-6.75437044303853E-12
2.43143103892373E-14
-1.415065368007838E-12
2.933442496881173E-14
tp
1.826615113052709E-12
-6.75437044303853E-12
6.245215994002227E-8
1.519616242408342E-10
1.21735254942825E-8
1.316214105978106E-11
node
-1.359025345726447E-14
2.43143103892373E-14
1.519616242408342E-10
1.028224841286953E-9
-9.783454534894263E-10
8.678642985324127E-11
peri
4.209820789028404E-13
-1.415065368007838E-12
1.21735254942825E-8
-9.783454534894263E-10
3.392986132992949E-9
-8.259041238742554E-11
i
-1.018056300059108E-14
2.933442496881173E-14
1.316214105978106E-11
8.678642985324127E-11
-8.259041238742554E-11
6.51149688792684E-11
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.4
n/a
MPO258184
305507 (2008 EK117)
Discovered 2008-Mar-08 by Spacewatch at Kitt Peak
Reference:
20111110/Numbers.arc
Last Updated:
2011-11-14
[ show close-approach data ]
Alternate Designations
2008 EK117
= 2005 SE197
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-16 13:54 UT
(server date/time)
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Ryan S. Park
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