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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21616366427657 5.716e-08  
a 2.54139452920271 1.5209e-08 au
q 1.992037375397824 1.4513e-07 au
i 2.813847352251934 4.7556e-06 deg
node 27.81237067291249 0.00014513 deg
peri 20.55045784462307 0.00014528 deg
M 84.89431257590897 1.8429e-05 deg
tp 2457251.534367408480
(2015-Aug-17.03436741)
7.5462e-05 JED
period 1479.81206185769
4.05
1.3284e-05
3.637e-08
d
yr
n .2432741354656024 2.1839e-09 deg/d
Q 3.090751683007597 1.8497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1088  
   data-arc span      15144 days (41.46 yr)  
   first obs. used      1974-10-19  
   last obs. used      2016-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48956  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:13:40  

Additional Information
 Earth MOID = 1.0008 au 
 Jupiter MOID = 2.30562 au 
 T_jup = 3.410 
[ 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 14.2 mag n/a MPO358749  

12231 (1986 QQ1)          Discovered 1986-Aug-27 by Debehogne, H. at La Silla
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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