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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2461854877147694 9.8474e-08  
a 2.64640891648184 2.6384e-08 AU
q 1.994901446685044 2.555e-07 AU
i 11.49831514818099 9.3189e-06 deg
node 271.4421211741806 4.3967e-05 deg
peri 84.90873118635554 4.8057e-05 deg
M 167.2324593207806 2.387e-05 deg
tp 2456070.030765385598
(2012-May-22.53076539)
9.7697e-05 JED
period 1572.475376665754
4.31
2.3516e-05
6.438e-08
d
yr
n .2289384020520161 3.4237e-09 deg/d
Q 3.297916386278636 3.2879e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      594  
   data-arc span      8642 days (23.66 yr)  
   first obs. used      1990-07-26  
   last obs. used      2014-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5593  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:03:14  

Additional Information
 Earth MOID = 1.02833 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 (675)
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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