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JPL Small-Body Database Browser
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(2017 SS12)
Classification: Apollo [NEO]          SPK-ID: 3781737
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3424589646731742 9.9601e-05  
a 1.227666261531045 0.00012064 au
q .8072409446429368 4.2957e-05 au
i 1.198925646130281 0.00030519 deg
node 1.269472758128169 2.1844e-05 deg
peri 283.7278726968211 0.00018608 deg
M 30.75482431924001 0.11379 deg
tp 2458958.054695075586
(2020-Apr-18.55469508)
0.15079 TDB
period 496.8426941470024
1.36
0.073238
0.0002005
d
yr
n .7245754123808966 0.00010681 deg/d
Q 1.648091578419153 0.00016196 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      7 days  
   first obs. used      2017-09-25  
   last obs. used      2017-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .44668  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-26 06:23:45  

Additional Information
 Earth MOID = 2.09696E-5 au 
 Jupiter MOID = 3.5102 au 
 T_jup = 5.151 
[ 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 27.1   n/a MPO435136  

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