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(2012 KW)
Classification: Apollo [NEO]          SPK-ID: 3604234
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3503885547983246 0.00030159  
a 1.499899960387156 0.00066333 au
q .9743521809250362 2.1526e-05 au
i 13.45648015914326 0.0073993 deg
node 60.94090706409293 5.2141e-05 deg
peri 213.94020738 0.0011822 deg
M 116.850615655617 1.0227 deg
tp 2458782.718807515019
(2019-Oct-26.21880752)
1.7616 TDB
period 670.9526420096728
1.84
0.4451
0.001219
d
yr
n .536550536445775 0.00035594 deg/d
Q 2.025447739849276 0.00089576 au
  Orbit Determination Parameters
   # obs. used (total)      33  
   data-arc span      4 days  
   first obs. used      2012-05-16  
   last obs. used      2012-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .38666  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:49:48  

Additional Information
 Earth MOID = .00583264 au 
 Jupiter MOID = 3.11313 au 
 T_jup = 4.447 
[ 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 26.8   n/a MPO231380  

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