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295491 (2008 RO20)
Classification: Jupiter Trojan          SPK-ID: 2295491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08921243990407469 1.1123e-07  
a 5.169501896246694 3.9653e-07 au
q 4.708318018993785 5.5237e-07 au
i 7.069842789606492 1.2468e-05 deg
node 210.9669228447441 8.5518e-05 deg
peri 233.0503483988185 0.00012732 deg
M 289.2317106286017 0.00011487 deg
tp 2459844.432423131945
(2022-Sep-21.93242313)
0.001448 TDB
period 4293.104652184661
11.75
0.00049395
1.352e-06
d
yr
n .08385539817129881 9.6482e-09 deg/d
Q 5.630685773499603 4.319e-07 au
  Orbit Determination Parameters
   # obs. used (total)      91  
   data-arc span      5614 days (15.37 yr)  
   first obs. used      2001-02-20  
   last obs. used      2016-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56676  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 14:26:51  

Additional Information
 Earth MOID = 3.73019 au 
 Jupiter MOID = .0408728 au 
 T_jup = 2.977 
[ 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 14.0   n/a MPO418563  

295491 (2008 RO20)          Discovered 2008-Sep-04 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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