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JPL Small-Body Database Browser
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(1994 WR12)
Classification: Aten [NEO]          SPK-ID: 3005969
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3973429389952398 8.3015e-07  
a .7568668041282645 1.2719e-08 au
q .4561311237480053 6.2594e-07 au
i 6.858563470693055 3.7279e-05 deg
node 62.69843370415121 8.7118e-05 deg
peri 206.01274708 4.9584e-05 deg
M 160.8056384181473 0.00013991 deg
tp 2458493.069799763097
(2019-Jan-09.56979976)
9.1305e-05 TDB
period 240.5069403394777
0.66
6.0625e-06
1.66e-08
d
yr
n 1.496838301181067 3.7731e-08 deg/d
Q 1.057602484508524 1.7773e-08 au
  Orbit Determination Parameters
   # obs. used (total)      33  
   data-arc span      8421 days (23.06 yr)  
   first obs. used      1994-11-26  
   last obs. used      2017-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63527  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-16 06:45:29  

Additional Information
 Earth MOID = .00165018 au 
 Jupiter MOID = 4.02595 au 
 T_jup = 7.570 
[ 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 22.3   n/a MPO374364  

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