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331990 (2005 FD)
Classification: Apollo [NEO]          SPK-ID: 2331990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3940847601945407 5.2283e-08  
a 1.460815771599337 5.9763e-09 au
q .8851305385602092 7.6597e-08 au
i 11.32859721552532 1.0964e-05 deg
node 13.35892776409933 2.8609e-05 deg
peri 270.9466080957672 3.4098e-05 deg
M 157.206672647999 2.467e-05 deg
tp 2458718.882216878487
(2019-Aug-23.38221688)
4.3017e-05 TDB
period 644.8988469512987
1.77
3.9575e-06
1.084e-08
d
yr
n .5582270796449206 3.4256e-09 deg/d
Q 2.036501004638465 8.3315e-09 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      5077 days (13.90 yr)  
   first obs. used      2005-03-16  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51267  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Feb-09 07:50:03  

Additional Information
 Earth MOID = .0972963 au 
 Jupiter MOID = 3.19699 au 
 T_jup = 4.517 
[ 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 19.6   n/a MPO245708  

331990 (2005 FD)          Discovered 2005-Mar-16 by CSS at Catalina
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

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