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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2160816810488844 5.7111e-08  
a 2.540417033683692 1.6339e-08 au
q 1.9914794504801 1.4513e-07 au
i 2.81381617601753 4.9394e-06 deg
node 27.81476158013651 0.00014552 deg
peri 20.45404696225296 0.00014568 deg
M 36.31947737377008 1.907e-05 deg
tp 2457251.291679924531
(2015-Aug-16.79167992)
7.8111e-05 JED
period 1478.95837471389
4.05
1.4268e-05
3.906e-08
d
yr
n .2434145586211263 2.3483e-09 deg/d
Q 3.089354616887285 1.987e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1023  
   data-arc span      15037 days (41.17 yr)  
   first obs. used      1974-10-19  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49616  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:20:08  

Additional Information
 Earth MOID = 1.00057 au 
 Jupiter MOID = 2.30884 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 14.2 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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