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JPL Small-Body Database Browser
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392121 (2009 FU31)
Classification: Main-belt Asteroid          SPK-ID: 2392121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1777690403285904 1.0116e-07  
a 2.972850800175851 7.168e-08 au
q 2.444369966388508 2.7377e-07 au
i 9.432891973408459 1.8527e-05 deg
node 185.1701005636358 5.4933e-05 deg
peri 112.7316680539825 9.0192e-05 deg
M 333.2862915287808 8.6495e-05 deg
tp 2459139.427998407190
(2020-Oct-16.92799841)
0.00045394 TDB
period 1872.22524646747
5.13
6.7714e-05
1.854e-07
d
yr
n .1922845558670095 6.9545e-09 deg/d
Q 3.501331633963194 8.4423e-08 au
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      6783 days (18.57 yr)  
   first obs. used      2000-09-07  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70035  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 06:32:59  

Additional Information
 Earth MOID = 1.44825 au 
 Jupiter MOID = 1.84627 au 
 T_jup = 3.218 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO472027  

392121 (2009 FU31)          Discovered 2004-Mar-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2009 FU31 = 2010 GE171 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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