Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
8509 (1991 FV2)
Classification: Main-belt Asteroid          SPK-ID: 2008509
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822738200950445 4.6412e-08  
a 2.336945935177527 1.4174e-08 AU
q 1.910981872217133 1.0859e-07 AU
i 4.895070194203841 6.3384e-06 deg
node 20.10234979017761 6.6127e-05 deg
peri 240.5826084423894 6.8852e-05 deg
M 175.5492405133539 1.8967e-05 deg
tp 2456364.191274270888
(2013-Mar-12.69127427)
6.767e-05 JED
period 1304.882553707516
3.57
1.1872e-05
3.25e-08
d
yr
n .2758868980025405 2.51e-09 deg/d
Q 2.762909998137921 1.6758e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1068  
   data-arc span      21812 days (59.72 yr)  
   first obs. used      1955-03-23  
   last obs. used      2014-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52353  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:26:09  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jan-29 00:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin