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(2011 SY120)
Classification: Apollo [NEO]          SPK-ID: 3579748
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2297354525113742 2.0586e-07  
a 1.216627660945446 1.703e-08 au
q .9371251547202892 2.4083e-07 au
i 31.92628553764448 4.1776e-05 deg
node 2.569791296185193 9.5578e-06 deg
peri 115.0625382108528 9.0919e-05 deg
M 79.48881229347163 0.00012917 deg
tp 2458892.272291470457
(2020-Feb-12.77229147)
0.00017378 TDB
period 490.1567144667904
1.34
1.0292e-05
2.818e-08
d
yr
n .7344589788831528 1.5421e-08 deg/d
Q 1.496130167170603 2.0942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      74  
   data-arc span      1450 days (3.97 yr)  
   first obs. used      2011-09-26  
   last obs. used      2015-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59444  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:52:39  

Additional Information
 Earth MOID = .0504392 au 
 Jupiter MOID = 3.6259 au 
 T_jup = 5.076 
[ 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 23.2   n/a MPO347252  

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