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305897 (2009 FB31)
Classification: Main-belt Asteroid          SPK-ID: 2305897
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1397088443191768 5.2962e-08  
a 2.708790019237772 2.6608e-08 au
q 2.330348096146742 1.418e-07 au
i 13.14255271735998 5.1724e-06 deg
node 199.2654497007951 2.723e-05 deg
peri 5.439999403575356 3.5505e-05 deg
M 163.6890803763031 2.4863e-05 deg
tp 2458260.079139912761
(2018-May-21.57913991)
0.00010721 TDB
period 1628.401289924982
4.46
2.3993e-05
6.569e-08
d
yr
n .221075727603105 3.2574e-09 deg/d
Q 3.087231942328802 3.0325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      7047 days (19.29 yr)  
   first obs. used      2000-05-05  
   last obs. used      2019-08-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58133  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:08  

Additional Information
 Earth MOID = 1.3273 au 
 Jupiter MOID = 1.87137 au 
 T_jup = 3.312 
[ 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 16.3   n/a MPO433971  

305897 (2009 FB31)          Discovered 2009-Mar-24 by LINEAR at Socorro
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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