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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2463622684126832 9.5246e-08  
a 2.64607842236029 2.4899e-08 AU
q 1.994184539829755 2.4765e-07 AU
i 11.49828987122196 8.485e-06 deg
node 271.4363692381731 4.0659e-05 deg
peri 84.88866577693585 4.4311e-05 deg
M 213.0684852239786 2.1919e-05 deg
tp 2457642.174748432340
(2016-Sep-10.67474843)
0.0001015 JED
period 1572.180820348701
4.30
2.2191e-05
6.076e-08
d
yr
n .2289812948615886 3.232e-09 deg/d
Q 3.297972304890824 3.1033e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      8666 days (23.73 yr)  
   first obs. used      1990-07-26  
   last obs. used      2014-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52892  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:24:16  

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 (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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