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(2012 WH1)
Classification: Aten [NEO]          SPK-ID: 3618296
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3364007907325502 5.5859e-07  
a .8173932465714389 1.6339e-07 au
q .5424215120853605 4.1181e-07 au
i 4.611544690724589 1.8065e-05 deg
node 64.03858588960207 1.6447e-05 deg
peri 147.1441522636094 9.1027e-05 deg
M 295.9269089119335 0.0016941 deg
tp 2459048.541678229428
(2020-Jul-18.04167823)
0.0012846 TDB
period 269.9261713286551
0.74
8.0933e-05
2.216e-07
d
yr
n 1.333698019084164 3.9989e-07 deg/d
Q 1.092364981057517 2.1835e-07 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      13 days  
   first obs. used      2012-11-19  
   last obs. used      2012-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .3518  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:47:56  

Additional Information
 Earth MOID = .00707557 au 
 Jupiter MOID = 3.87042 au 
 T_jup = 7.110 
[ 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 23.9   n/a MPO248937  

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