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508338 (2015 SO20)
Classification: TransNeptunian Object          SPK-ID: 2508338
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8019556204717732 2.3555e-05  
a 167.4460789163713 0.020631 au
q 33.16175480342726 0.00014272 au
i 23.40296885991091 3.3053e-05 deg
node 33.61851053064359 1.8012e-05 deg
peri 354.5917351731674 0.00053784 deg
M .5621716017815039 0.00011007 deg
tp 2457964.617158708945
(2017-Jul-30.11715871)
0.078045 TDB
period 791427.0686296666
2166.81
146.27
0.4005
d
yr
n .0004548745099448389 8.4069e-08 deg/d
Q 301.7304030293153 0.037177 au
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      4096 days (11.21 yr)  
   first obs. used      2009-09-21  
   last obs. used      2020-12-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .46312  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 18:43:28  

Additional Information
 Earth MOID = 32.1666 au 
 Jupiter MOID = 28.1995 au 
 T_jup = 6.251 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 6.5   n/a MPO386929  

508338 (2015 SO20)          Discovered 2010-Oct-08 by Schwamb, M. E. at La Silla
Reference: Last Updated: 2017-12-07

Alternate Designations
 2015 SO20 = 2010 TF182 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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