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12737 (1991 VW4)
Classification: Main-belt Asteroid          SPK-ID: 2012737
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1547065640674449 3.3506e-08  
a 2.375074911318918 7.6797e-09 au
q 2.007635232385977 8.08e-08 au
i 7.537028308551485 2.7549e-06 deg
node 98.54776714479736 3.0637e-05 deg
peri 236.5686913772268 3.2883e-05 deg
M 349.2114557418614 1.1224e-05 deg
tp 2459040.565885149359
(2020-Jul-10.06588515)
4.1619e-05 TDB
period 1336.947627840364
3.66
6.4845e-06
1.775e-08
d
yr
n .2692700839609741 1.306e-09 deg/d
Q 2.742514590251859 8.8679e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2302  
   data-arc span      10585 days (28.98 yr)  
   first obs. used      1991-11-02  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45424  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:50:59  

Additional Information
 Earth MOID = 1.00856 au 
 Jupiter MOID = 2.61643 au 
 T_jup = 3.514 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO473939  

12737 (1991 VW4)          Discovered 1991-Nov-10 by Otomo, S. at Kiyosato
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 VW4 = 1996 BS4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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