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JPL Small-Body Database Browser
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80250 (1999 WW9)
Classification: Mars-crossing Asteroid          SPK-ID: 2080250
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2930548966727595 6.7084e-08  
a 2.308116766840282 1.1951e-08 au
q 1.63171184622524 1.5368e-07 au
i 3.967031729434313 5.4382e-06 deg
node 104.1571026213828 8.3642e-05 deg
peri 290.877917509914 8.4162e-05 deg
M 217.0476310525315 1.5997e-05 deg
tp 2459109.097178534544
(2020-Sep-16.59717853)
5.9919e-05 TDB
period 1280.811123456924
3.51
9.9479e-06
2.724e-08
d
yr
n .2810718874991933 2.1831e-09 deg/d
Q 2.984521687455325 1.5454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      608  
   data-arc span      7058 days (19.32 yr)  
   first obs. used      1999-10-10  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55911  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:31:58  

Additional Information
 Earth MOID = .643286 au 
 Jupiter MOID = 2.45427 au 
 T_jup = 3.525 
[ 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 15.6   n/a MPO296686  

80250 (1999 WW9)          Discovered 1999-Nov-30 by Kobayashi, T. at Oizumi
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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