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JPL Small-Body Database Browser
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295021 (2008 EH68)
Classification: Jupiter Trojan          SPK-ID: 2295021
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07442354460686967 7.2862e-08  
a 5.24944824953612 2.5665e-07 au
q 4.858765703575314 4.493e-07 au
i 28.32953138529695 8.0806e-06 deg
node 129.098824732896 1.342e-05 deg
peri 208.7417992611095 7.1978e-05 deg
M 232.8576933176683 8.164e-05 deg
tp 2460152.016864167443
(2023-Jul-26.51686417)
0.001082 TDB
period 4393.078005858592
12.03
0.00032217
8.821e-07
d
yr
n .08194709939589175 6.0097e-09 deg/d
Q 5.640130795496925 2.7575e-07 au
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      7600 days (20.81 yr)  
   first obs. used      1998-07-20  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51316  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:03:33  

Additional Information
 Earth MOID = 3.86489 au 
 Jupiter MOID = .186251 au 
 T_jup = 2.755 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO437319  
diameter diameter 14.261 km 0.864 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.087   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

295021 (2008 EH68)          Discovered 2008-Mar-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 EH68 = 1998 OZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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