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JPL Small-Body Database Browser
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312809 (2011 AJ22)
Classification: Main-belt Asteroid          SPK-ID: 2312809
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1670493348810344 5.8027e-08  
a 3.0685946928275 4.2477e-08 au
q 2.555987990371194 1.6647e-07 au
i 15.32132352978998 6.5137e-06 deg
node 101.4361669873324 2.2974e-05 deg
peri 126.8636906086628 3.0558e-05 deg
M 102.6990264190065 1.9951e-05 deg
tp 2458040.392294966352
(2017-Oct-13.89229497)
0.00010497 TDB
period 1963.39518341136
5.38
4.0767e-05
1.116e-07
d
yr
n .1833558536975257 3.8071e-09 deg/d
Q 3.581201395283806 4.9572e-08 au
  Orbit Determination Parameters
   # obs. used (total)      286  
   data-arc span      6797 days (18.61 yr)  
   first obs. used      2000-01-04  
   last obs. used      2018-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59275  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 10:53:46  

Additional Information
 Earth MOID = 1.57664 au 
 Jupiter MOID = 1.61462 au 
 T_jup = 3.156 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO455306  

312809 (2011 AJ22)          Discovered 2006-Mar-03 by LONEOS at Anderson Mesa
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 AJ22 = 2006 EC45 = 2010 CD211 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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