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(2012 SW2)
Classification: Apollo [NEO]          SPK-ID: 3608726
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 .678943617882813 0.00054209  
a 2.372574591995986 0.003272 au
q .7617302148093923 0.00023566 au
i 3.236964979416209 0.00094687 deg
node 180.8905023413098 0.03033 deg
peri 240.9319759509347 0.038319 deg
M 23.38664229671003 1.6453 deg
tp 2458913.785123080870
(2020-Mar-05.28512308)
5.9211 TDB
period 1334.837010581816
3.65
2.7613
0.00756
d
yr
n .2696958483666007 0.00055791 deg/d
Q 3.983418969182579 0.0054935 au
  Orbit Determination Parameters
   # obs. used (total)      31  
   data-arc span      3 days  
   first obs. used      2012-09-16  
   last obs. used      2012-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .56734  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:48:58  

Additional Information
 Earth MOID = .00519497 au 
 Jupiter MOID = 1.39126 au 
 T_jup = 3.183 
[ 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 27.5   n/a MPO240091  

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