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(2008 SS81)
Classification: Main-belt Asteroid          SPK-ID: 3429830
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2698998750855769 3.6884e-07  
a 2.544622017147738 4.5745e-08 au
q 1.857828852579555 9.6957e-07 au
i 11.71277657662261 1.4075e-05 deg
node 278.7887356080261 7.2584e-05 deg
peri 111.3220505825296 0.0001152 deg
M 39.23812524691531 9.7468e-05 deg
tp 2459234.900841084046
(2021-Jan-20.40084108)
0.00039732 TDB
period 1482.631926058115
4.06
3.998e-05
1.095e-07
d
yr
n .2428114447509132 6.5476e-09 deg/d
Q 3.231415181715921 5.8092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      5874 days (16.08 yr)  
   first obs. used      2004-10-14  
   last obs. used      2020-11-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53471  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 01:52:25  

Additional Information
 Earth MOID = .90053 au 
 Jupiter MOID = 2.35103 au 
 T_jup = 3.364 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a E2020-VE3  

Alternate Designations
 2008 SS81 = 2012 RA17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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