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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2464287649397073 7.4999e-08  
a 2.646528045381678 2.313e-08 au
q 1.994347407779973 1.9827e-07 au
i 11.49790455890885 7.7233e-06 deg
node 271.4357764657163 3.8014e-05 deg
peri 84.83934395933488 4.1559e-05 deg
M 304.7192338541662 2.254e-05 deg
tp 2457641.981981235966
(2016-Sep-10.48198124)
0.00010055 JED
period 1572.581556044503
4.31
2.0616e-05
5.644e-08
d
yr
n .2289229443244293 3.0011e-09 deg/d
Q 3.298708682983383 2.883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      656  
   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      .51505  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:11:06  

Additional Information
 Earth MOID = 1.02724 au 
 Jupiter MOID = 2.31475 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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