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12231 (1986 QQ1)
Classification: Main-belt Asteroid          SPK-ID: 2012231
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2162569268426241 5.7344e-08  
a 2.540909884012773 1.9766e-08 AU
q 1.991420521112122 1.4527e-07 AU
i 2.813682884839449 5.0858e-06 deg
node 27.81735788075308 0.00015024 deg
peri 20.42001548954747 0.00015041 deg
M 298.9929638546306 2.203e-05 deg
tp 2457251.203124493018
(2015-Aug-16.70312449)
9.1665e-05 JED
period 1479.388780704388
4.05
1.7263e-05
4.726e-08
d
yr
n .2433437408039499 2.8395e-09 deg/d
Q 3.090399246913423 2.4041e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      14508 days (39.72 yr)  
   first obs. used      1974-10-19  
   last obs. used      2014-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5148  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:15:14  

Additional Information
 Earth MOID = 1.00135 AU 
 T_jup = 3.411 
[ 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 14.1 mag n/a MPO263459  

12231 (1986 QQ1)          Discovered 1986-Aug-27 by Debehogne, H. at La Silla (809)
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1986 QQ1 = 1974 UR = 1997 GN36 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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