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13040 (1990 OB4)
Classification: Main-belt Asteroid          SPK-ID: 2013040
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2464938090227975 7.4294e-08  
a 2.646915428115042 2.3135e-08 au
q 1.994467162077757 1.9654e-07 au
i 11.49708984376149 7.6068e-06 deg
node 271.4330400117998 3.7836e-05 deg
peri 84.81535299212945 4.1326e-05 deg
M 350.5218922157854 2.2856e-05 deg
tp 2457641.912139400401
(2016-Sep-10.41213940)
0.00010023 JED
period 1572.926846113065
4.31
2.0622e-05
5.646e-08
d
yr
n .2288726909898024 3.0007e-09 deg/d
Q 3.299363694152328 2.8838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      662  
   data-arc span      9091 days (24.89 yr)  
   first obs. used      1990-07-26  
   last obs. used      2015-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51776  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:53:02  

Additional Information
 Earth MOID = 1.02819 au 
 Jupiter MOID = 2.31447 au 
 T_jup = 3.321 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO337369  

13040 (1990 OB4)          Discovered 1990-Jul-29 by Holt, H. E. at Palomar
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

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