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102883 (1999 WA20)
Classification: Main-belt Asteroid          SPK-ID: 2102883
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07326036130911985 2.7945e-08  
a 2.564911491695712 1.2218e-08 au
q 2.377005149088171 7.264e-08 au
i 8.784675534657248 4.41e-06 deg
node 156.8860468159455 2.0855e-05 deg
peri 283.6915115916929 3.9137e-05 deg
M 31.39228916981107 3.1973e-05 deg
tp 2459069.663930945513
(2020-Aug-08.16393095)
0.00013319 TDB
period 1500.399814898204
4.11
1.0721e-05
2.935e-08
d
yr
n .2399360466626187 1.7144e-09 deg/d
Q 2.752817834303253 1.3113e-08 au
  Orbit Determination Parameters
   # obs. used (total)      683  
   data-arc span      7746 days (21.21 yr)  
   first obs. used      1999-11-05  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53686  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:32:40  

Additional Information
 Earth MOID = 1.4109 au 
 Jupiter MOID = 2.39869 au 
 T_jup = 3.413 
[ 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 MPO439701  

102883 (1999 WA20)          Discovered 1999-Nov-16 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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