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185457 (2007 AN2)
Classification: Main-belt Asteroid          SPK-ID: 2185457
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01948233697580328 7.0644e-08  
a 2.611482172038693 2.1811e-08 au
q 2.560604396356732 1.8975e-07 au
i 28.28113215871413 6.5715e-06 deg
node 66.81809078636945 9.7353e-06 deg
peri 134.6897965894994 0.0001255 deg
M 334.4487768376098 0.00012488 deg
tp 2459109.905264194986
(2020-Sep-17.40526420)
0.00053477 TDB
period 1541.448519308802
4.22
1.9311e-05
5.287e-08
d
yr
n .2335465605827866 2.9259e-09 deg/d
Q 2.662359947720653 2.2236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      8162 days (22.35 yr)  
   first obs. used      1997-09-29  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53821  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:05:09  

Additional Information
 Earth MOID = 1.56091 au 
 Jupiter MOID = 2.38098 au 
 T_jup = 3.240 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO459840  

185457 (2007 AN2)          Discovered 2007-Jan-08 by LINEAR at Socorro
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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