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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1824001776869581 4.643e-08  
a 2.336787172814724 1.4324e-08 AU
q 1.910556777276713 1.0868e-07 AU
i 4.895288793356666 6.3929e-06 deg
node 20.10502779447753 6.6444e-05 deg
peri 240.5977056599235 6.9211e-05 deg
M 120.3374869937525 1.8929e-05 deg
tp 2456364.360316555337
(2013-Mar-12.86031656)
6.7976e-05 JED
period 1304.749583546067
3.57
1.1997e-05
3.285e-08
d
yr
n .2759150142984425 2.537e-09 deg/d
Q 2.763017568352734 1.6937e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1061  
   data-arc span      21470 days (58.78 yr)  
   first obs. used      1955-03-23  
   last obs. used      2014-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52404  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:17:00  

Additional Information
 Earth MOID = .900999 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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