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(2020 SO)
Classification: Apollo [NEO]          SPK-ID: 54054450
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 52 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03388191395804279 4.7837e-07  
a 1.037095886179267 1.0757e-07 au
q 1.001957092597501 4.4577e-07 au
i .1405907210165508 7.3022e-07 deg
node 105.9626855126946 0.00054694 deg
peri 331.2985465370122 0.00074064 deg
M 179.8881145109749 0.0002607 deg
tp 2458807.735630020423
(2019-Nov-20.23563002)
0.00026444 TDB
period 385.7685282949249
1.06
6.0021e-05
1.643e-07
d
yr
n .9332020981368794 1.452e-07 deg/d
Q 1.072234679761033 1.1122e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.916323977984559E-9 5.951E-11
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      334  
   data-arc span      80 days  
   first obs. used      2020-09-09  
   last obs. used      2020-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .60796  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-28 05:19:35  

Additional Information
 Earth MOID = .0163415 au 
 Jupiter MOID = 3.93137 au 
 T_jup = 5.910 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 28.839   .56783 52 autocmod 2.8

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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