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12213 (1981 QN3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2012213
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941634730907855 8.7973e-08  
a 3.20452258165125 4.0532e-08 au
q 2.582321347599993 2.8569e-07 au
i 1.982969958747911 8.2898e-06 deg
node 138.8844894386918 0.00020655 deg
peri 201.3468151584741 0.00020742 deg
M 350.1261978707581 2.1114e-05 deg
tp 2457457.967903033979
(2016-Mar-10.46790303)
0.00012354 JED
period 2095.286579722115
5.74
3.9753e-05
1.088e-07
d
yr
n .1718142059821452 3.2598e-09 deg/d
Q 3.826723815702507 4.8402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      673  
   data-arc span      11994 days (32.84 yr)  
   first obs. used      1981-08-26  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56005  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:22:19  

Additional Information
 Earth MOID = 1.57189 au 
 Jupiter MOID = 1.56485 au 
 T_jup = 3.162 
[ 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 13.7 mag n/a MPO259430  

12213 (1981 QN3)          Discovered 1981-Aug-26 by Debehogne, H. at La Silla
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 QN3 = 1987 SL13 = 1987 SQ30 = 1998 MF46 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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