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31571 (1999 FY20)
Classification: Main-belt Asteroid          SPK-ID: 2031571
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03607324208786351 3.5368e-08  
a 2.576524787813664 1.0792e-08 au
q 2.483581185397481 9.1512e-08 au
i 3.44313931723837 3.5741e-06 deg
node 94.82712426000705 5.6348e-05 deg
peri 159.3253593992219 7.4756e-05 deg
M 345.9515809089118 4.8e-05 deg
tp 2459059.448786353145
(2020-Jul-28.94878635)
0.00020128 TDB
period 1510.601509645625
4.14
9.4906e-06
2.598e-08
d
yr
n .238315662801405 1.4973e-09 deg/d
Q 2.669468390229848 1.1181e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1404  
   data-arc span      10160 days (27.82 yr)  
   first obs. used      1992-09-23  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50289  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:00:19  

Additional Information
 Earth MOID = 1.46893 au 
 Jupiter MOID = 2.32614 au 
 T_jup = 3.423 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO435982  

31571 (1999 FY20)          Discovered 1999-Mar-25 by Klet at Klet
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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