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JPL Small-Body Database Browser
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392012 (2009 AN4)
Classification: Main-belt Asteroid          SPK-ID: 2392012
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1580814858644073 6.5512e-08  
a 2.733292289310802 3.0105e-08 au
q 2.301209382914823 1.8488e-07 au
i 10.15730977302238 5.4529e-06 deg
node 95.17074743646749 4.4321e-05 deg
peri 310.5998916764844 5.5552e-05 deg
M 235.5429194674471 3.3427e-05 deg
tp 2459571.116925775218
(2021-Dec-22.61692578)
0.0001604 TDB
period 1650.545653168751
4.52
2.7269e-05
7.466e-08
d
yr
n .2181096895495527 3.6035e-09 deg/d
Q 3.165375195706781 3.4864e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      7092 days (19.42 yr)  
   first obs. used      1999-12-07  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52921  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:41:52  

Additional Information
 Earth MOID = 1.32631 au 
 Jupiter MOID = 2.23068 au 
 T_jup = 3.313 
[ 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 17.2   n/a MPO434450  

392012 (2009 AN4)          Discovered 2009-Jan-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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