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43797 (1991 AF2)
Classification: Main-belt Asteroid          SPK-ID: 2043797
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1602532225015173 6.0019e-08  
a 2.621991048961824 1.9913e-08 au
q 2.201808533995558 1.6209e-07 au
i 12.23631451715267 6.809e-06 deg
node 184.8614519772987 2.4994e-05 deg
peri 246.0916924592991 3.2897e-05 deg
M 329.167452860768 2.224e-05 deg
tp 2457533.316532392437
(2016-May-24.81653239)
9.6209e-05 JED
period 1550.762298209144
4.25
1.7666e-05
4.837e-08
d
yr
n .2321438949191222 2.6445e-09 deg/d
Q 3.04217356392809 2.3104e-08 au
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      9151 days (25.05 yr)  
   first obs. used      1990-11-20  
   last obs. used      2015-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57962  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:49:13  

Additional Information
 Earth MOID = 1.24588 au 
 Jupiter MOID = 2.39139 au 
 T_jup = 3.354 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5 mag n/a MPO266162  

43797 (1991 AF2)          Discovered 1991-Jan-07 by McNaught, R. H. at Siding Spring
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 AF2 = 1998 QW51 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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