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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8000217162647806 2.404e-05  
a 165.8259958373825 0.020652 au
q 33.16159804624338 0.00014466 au
i 23.41614788308904 3.432e-05 deg
node 33.61990172990936 1.895e-05 deg
peri 354.5810313565987 0.00055221 deg
M .4790269107279561 9.847e-05 deg
tp 2457962.649595232159
0.080108 TDB
period 779969.0108195374
n .0004615567990601792 8.6224e-08 deg/d
Q 298.4903936285215 0.037174 au
  Orbit Determination Parameters
   # obs. used (total)      298  
   data-arc span      4023 days (11.01 yr)  
   first obs. used      2009-09-21  
   last obs. used      2020-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .462  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:25:26  

Additional Information
 Earth MOID = 32.1676 au 
 Jupiter MOID = 28.1982 au 
 T_jup = 6.247 
[ 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 ]
FirstGov 2020-Nov-25 01:05 UT
(server date/time)  
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