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JPL Small-Body Database Browser
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12916 Eteoneus (1998 TL15)
Classification:
Jupiter Trojan
SPK-ID:
2012916
[
Ephemeris
|
Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
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Discovery Circumstances
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 19
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.01987815208723247
6.4963e-08
a
5.147370616450666
1.1398e-07
au
q
5.045050400487509
3.5898e-07
au
i
26.411800829624
7.5649e-06
deg
node
219.3638755426252
1.1134e-05
deg
peri
213.0328473546785
0.00015568
deg
M
228.5044443976465
0.00015896
deg
t
p
2460158.563519521914
(2023-Aug-02.06351952)
0.001911
TDB
period
4265.565208333549
11.68
0.00014168
3.879e-07
d
yr
n
.08439678739330375
2.8033e-09
deg/d
Q
5.249690832413823
1.1625e-07
au
Orbit Determination Parameters
# obs. used (total)
917
data-arc span
11250 days (30.80 yr)
first obs. used
1989-01-08
last obs. used
2019-10-28
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.5845
source
ORB
producer
Otto Matic
solution date
2019-Nov-07 03:39:17
Additional Information
Earth MOID
= 4.06605 au
Jupiter MOID
= .0747073 au
T_jup
= 2.792
[ 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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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
11.4
n/a
MPO416851
diameter
diameter
22.289
km
1.618
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)
geometric albedo
albedo
0.098
0.017
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)
12916 Eteoneus
Discovered 1998 Oct. 13 by the OCA-DLR Asteroid Survey at Caussols.
Eteoneus, the son of Boethous, was King Menelaus of Sparta's weapon-carrier during the Trojan War. He helped Odysseus in his attempts to return home.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference:
20081113/MPCPages.arc
Last Updated:
2008-11-17
Alternate Designations
1998 TL15
= 1986 TL7
[
Ephemeris
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Orbit Diagram
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2019-Dec-10 22:00 UT
(server date/time)
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Ryan S. Park
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