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JPL Small-Body Database Browser
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49773 (1999 WJ8)
Classification: Main-belt Asteroid          SPK-ID: 2049773
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06714432770677711 3.8036e-08  
a 2.36497164769517 9.2565e-09 au
q 2.206177216365089 9.0134e-08 au
i 6.346202760462697 3.886e-06 deg
node 130.7231837126158 3.5151e-05 deg
peri 77.0574359952053 4.5665e-05 deg
M 357.2138306456555 2.8537e-05 deg
tp 2458610.781165376832
(2019-May-07.28116538)		 0.0001053 TDB
period 1328.425901278461
3.64		 7.7992e-06
2.135e-08		 d
yr
n .2709974260916928 1.591e-09 deg/d
Q 2.523766079025251 9.878e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1141  
   data-arc span      9604 days (26.29 yr)  
   first obs. used      1993-01-23  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55898  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:16  

Additional Information
 Earth MOID = 1.2123 au 
 Jupiter MOID = 2.45168 au 
 T_jup = 3.537 
[ 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 15.2   n/a MPO474378  

49773 (1999 WJ8)          Discovered 1999-Nov-28 by Kobayashi, T. at Oizumi
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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