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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2463622653849269 9.4478e-08  
a 2.646078421849986 2.4828e-08 AU
q 1.994184547456851 2.4576e-07 AU
i 11.49829084762017 8.4512e-06 deg
node 271.4363724269779 4.0585e-05 deg
peri 84.8886627240274 4.4232e-05 deg
M 213.0684855485428 2.1913e-05 deg
tp 2457642.174746829291
(2016-Sep-10.67474683)
0.00010146 JED
period 1572.180819893902
4.30
2.2128e-05
6.058e-08
d
yr
n .2289812949278281 3.2228e-09 deg/d
Q 3.29797229624312 3.0945e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      614  
   data-arc span      9012 days (24.67 yr)  
   first obs. used      1990-07-26  
   last obs. used      2015-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53035  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:45:45  

Additional Information
 Earth MOID = 1.0291 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 13.5 mag n/a MPO259436  

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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