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305889 (2009 FA21)
Classification: Main-belt Asteroid          SPK-ID: 2305889
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06725538956010592 5.391e-08  
a 2.619775346478251 3.8927e-08 au
q 2.443581334990895 1.4151e-07 au
i 22.15488224777235 1.5181e-05 deg
node 13.62470039805211 1.5244e-05 deg
peri 69.21226403672854 0.00020492 deg
M 334.2580085404952 0.00019056 deg
tp 2459111.247554316596
(2020-Sep-18.74755432)
0.0008188 TDB
period 1548.79701582892
4.24
3.452e-05
9.451e-08
d
yr
n .2324384643828404 5.1807e-09 deg/d
Q 2.795969357965607 4.1545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      306  
   data-arc span      6803 days (18.63 yr)  
   first obs. used      1998-09-15  
   last obs. used      2017-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54421  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-May-15 18:18:11  

Additional Information
 Earth MOID = 1.51641 au 
 Jupiter MOID = 2.38507 au 
 T_jup = 3.298 
[ 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 15.9   n/a MPO260602  

305889 (2009 FA21)          Discovered 2009-Mar-19 by Spacewatch at Kitt Peak
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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