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8509 (1991 FV2)
Classification: Main-belt Asteroid          SPK-ID: 2008509
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822738201027846 4.6413e-08  
a 2.336945935345055 1.4214e-08 AU
q 1.910981872336037 1.0861e-07 AU
i 4.895069393581686 6.3791e-06 deg
node 20.10235567742789 6.6338e-05 deg
peri 240.5826021542854 6.9101e-05 deg
M 175.5492408204464 1.9029e-05 deg
tp 2456364.191273089356
(2013-Mar-12.69127309)
6.7937e-05 JED
period 1304.88255384783
3.57
1.1905e-05
3.259e-08
d
yr
n .2758868979728744 2.5171e-09 deg/d
Q 2.762909998354073 1.6805e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1064  
   data-arc span      21762 days (59.58 yr)  
   first obs. used      1955-03-23  
   last obs. used      2014-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52363  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:07:27  

Additional Information
 Earth MOID = .903139 AU 
 T_jup = 3.540 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a PDS3 (MPC 31498)  

8509 (1991 FV2)          Discovered 1991-Mar-20 by Debehogne, H. at La Silla (809)
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 FV2 = 1959 LG = 1978 VQ1 = 1987 AU 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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