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JPL Small-Body Database Browser
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469902 (2005 WF99)
Classification: Main-belt Asteroid          SPK-ID: 2469902
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1743267028670641 1.097e-07  
a 2.448486224249549 2.8071e-08 au
q 2.021649693760698 2.8661e-07 au
i 7.720123239939576 7.4864e-06 deg
node 80.4521658955012 6.4467e-05 deg
peri 310.3465772255142 7.2434e-05 deg
M 210.5203269079394 3.7434e-05 deg
tp 2459181.564794003427
(2020-Nov-28.06479400)
0.00015357 TDB
period 1399.409842918261
3.83
2.4066e-05
6.589e-08
d
yr
n .2572512990542309 4.4239e-09 deg/d
Q 2.8753227547384 3.2964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      6437 days (17.62 yr)  
   first obs. used      2001-10-17  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61243  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:02:47  

Additional Information
 Earth MOID = 1.03722 au 
 Jupiter MOID = 2.56754 au 
 T_jup = 3.464 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO434692  

469902 (2005 WF99)          Discovered 2005-Nov-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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