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

[ hide orbit diagram ]

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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8019556211097065 2.3555e-05  
a 167.4460794869795 0.020631 au
q 33.16175480961357 0.00014272 au
i 23.40296886713712 3.3053e-05 deg
node 33.61851052879175 1.8012e-05 deg
peri 354.5917352225035 0.00053784 deg
M .5621715957520612 0.00011007 deg
tp 2457964.617165646822
(2017-Jul-30.11716565)
0.078045 TDB
period 791427.0726751013
2166.81
146.27
0.4005
d
yr
n .0004548745076197161 8.4069e-08 deg/d
Q 301.7304041643455 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .46312  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 18:32:17  

Additional Information
 Earth MOID = 32.1666 au 
 Jupiter MOID = 28.1995 au 
 T_jup = 6.251 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457306.5 (2015-Oct-11.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7966542293818251 2.3508e-05  
q 33.16264040621031 0.0001428 au
tp 2458019.791838363934
(2017-Sep-23.29183836)
0.078516 TDB
node 33.62425697482809 1.7992e-05 deg
peri 354.9810737933709 0.00054047 deg
i 23.43678152047188 3.3095e-05 deg
  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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .46312  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 18:32:17  

Additional Information
 Jupiter MOID = 28.1995 au 
 T_jup = 6.251 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.526427873235351E-10 3.329716413016671E-9 -2.145082656926624E-9 -1.65634768077553E-11 -3.578250134773844E-12 8.758343012012058E-11
q 3.329716413016671E-9 2.039054466884729E-8 -1.004310205382492E-6 -9.977640632128515E-11 -6.878248341212946E-9 5.257779637128594E-10
tp -2.145082656926624E-9 -1.004310205382492E-6 .006164716159162025 -5.051146989822837E-9 4.241394459561364E-5 3.727611325430613E-8
node -1.65634768077553E-11 -9.977640632128515E-11 -5.051146989822837E-9 3.237079733757071E-10 -3.314499041521971E-10 -4.66378736778896E-10
peri -3.578250134773844E-12 -6.878248341212946E-9 4.241394459561364E-5 -3.314499041521971E-10 2.921113902334376E-7 6.828058397273703E-10
i 8.758343012012058E-11 5.257779637128594E-10 3.727611325430613E-8 -4.66378736778896E-10 6.828058397273703E-10 1.095271140695279E-9

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 6.66   n/a MPCxxxxx  

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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