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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2463622514312356 7.4963e-08  
a 2.64607841990132 2.3215e-08 AU
q 1.994184582910824 1.9804e-07 AU
i 11.49828793879344 7.7236e-06 deg
node 271.4363605140474 3.8013e-05 deg
peri 84.8886761913658 4.1562e-05 deg
M 213.0684855746923 2.1785e-05 deg
tp 2457642.174746006263
(2016-Sep-10.67474601)
0.00010056 JED
period 1572.180818157187
4.30
2.069e-05
5.665e-08
d
yr
n .228981295180773 3.0134e-09 deg/d
Q 3.297972256891815 2.8934e-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 = 1.0291 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 13.6 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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