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

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1620711485733631 2.7908e-08  
a 2.621612087523318 1.0619e-08 au
q 2.196724405384602 7.2742e-08 au
i 12.22256234779361 3.6868e-06 deg
node 184.7525150586112 1.6346e-05 deg
peri 246.9245995803993 2.0682e-05 deg
M 26.1823538277479 1.2442e-05 deg
tp 2459087.739430687585
(2020-Aug-26.23943069)
5.3487e-05 TDB
period 1550.426108345091
4.24
9.4199e-06
2.579e-08
d
yr
n .2321942323225325 1.4107e-09 deg/d
Q 3.046499769662034 1.234e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1501  
   data-arc span      11078 days (30.33 yr)  
   first obs. used      1990-11-20  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48937  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:27:02  

Additional Information
 Earth MOID = 1.24176 au 
 Jupiter MOID = 2.37793 au 
 T_jup = 3.354 
[ 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 14.49   n/a MPCxxxxx  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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