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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1604556130514538 6.56e-08  
a 2.622307658454068 2.3582e-08 AU
q 2.201543675507298 1.7244e-07 AU
i 12.23475739805238 6.8537e-06 deg
node 184.8666738576101 3.1261e-05 deg
peri 246.0591867316983 3.7607e-05 deg
M 236.3692078985077 2.3124e-05 deg
tp 2457533.157495627231
(2016-May-24.65749563)
0.0001023 JED
period 1551.043192123078
4.25
2.0923e-05
5.728e-08
d
yr
n .2321018536609736 3.1309e-09 deg/d
Q 3.043071641400838 2.7366e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      9042 days (24.76 yr)  
   first obs. used      1990-11-20  
   last obs. used      2015-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59427  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:42:55  

Additional Information
 Earth MOID = 1.2461 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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