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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0678595076040711 3.3519e-08  
a 2.365287073291565 8.0077e-09 au
q 2.204779857155725 7.7623e-08 au
i 6.349026509961522 3.4722e-06 deg
node 130.700683767528 2.9997e-05 deg
peri 76.84539849738673 3.8533e-05 deg
M 105.7553882147217 2.4902e-05 deg
tp 2458610.176933225781
(2019-May-06.67693323)
9.155e-05 TDB
period 1328.691676242727
3.64
6.7475e-06
1.847e-08
d
yr
n .2709432191356897 1.3759e-09 deg/d
Q 2.525794289427405 8.5511e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1473  
   data-arc span      10157 days (27.81 yr)  
   first obs. used      1993-01-23  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:28:38  

Additional Information
 Earth MOID = 1.21076 au 
 Jupiter MOID = 2.44848 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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