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80249 (1999 WB9)
Classification: Main-belt Asteroid          SPK-ID: 2080249
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2448440321065924 3.5028e-08  
a 2.367920764437094 8.6643e-09 au
q 1.788149496763391 8.3587e-08 au
i 4.557033945826209 4.1261e-06 deg
node 258.4414314598042 5.7515e-05 deg
peri 189.9972208559314 5.855e-05 deg
M 219.272339386979 1.316e-05 deg
tp 2459520.766836189373
(2021-Nov-02.26683619)
5.0624e-05 TDB
period 1330.91149396144
3.64
7.3047e-06
2e-08
d
yr
n .2704913148871116 1.4846e-09 deg/d
Q 2.947692032110796 1.0786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      725  
   data-arc span      7613 days (20.84 yr)  
   first obs. used      1999-10-13  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56247  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:20:18  

Additional Information
 Earth MOID = .804772 au 
 Jupiter MOID = 2.2778 au 
 T_jup = 3.501 
[ 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 16.03   n/a E2021B10  

80249 (1999 WB9)          Discovered 1999-Nov-30 by Stafford, T. at Zeno
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1999 WB9 = 2002 PE10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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