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JPL Small-Body Database Browser
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305516 (2008 FQ9)
Classification: Main-belt Asteroid          SPK-ID: 2305516
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05893631788819351 6.5434e-08  
a 3.029524381791135 4.1261e-08 au
q 2.850975369775859 1.9042e-07 au
i 1.943661243370942 6.7735e-06 deg
node 18.63739221978063 0.00019533 deg
peri 19.06211451154719 0.00020448 deg
M 157.4727601556193 6.3564e-05 deg
tp 2457758.013318538744
(2017-Jan-04.51331854)
0.00033163 TDB
period 1926.016950654365
5.27
3.9347e-05
1.077e-07
d
yr
n .1869142428251682 3.8185e-09 deg/d
Q 3.208073393806409 4.3692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      8559 days (23.43 yr)  
   first obs. used      1995-11-18  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:11:20  

Additional Information
 Earth MOID = 1.85739 au 
 Jupiter MOID = 2.06383 au 
 T_jup = 3.240 
[ 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 16.5   n/a MPO433969  

305516 (2008 FQ9)          Discovered 1995-Nov-18 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2008 FQ9 = 1995 WB23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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