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102871 (1999 WB11)
Classification: Main-belt Asteroid          SPK-ID: 2102871
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2091012087665611 3.5985e-08  
a 2.34734053637377 6.5978e-09 au
q 1.856508792831267 8.4705e-08 au
i 3.502482738889797 3.9556e-06 deg
node 79.33362645564726 6.5067e-05 deg
peri 315.2131046043747 6.5746e-05 deg
M 325.5431433700546 9.9925e-06 deg
tp 2459326.229077772291
(2021-Apr-21.72907777)
3.676e-05 TDB
period 1313.598291455542
3.60
5.5383e-06
1.516e-08
d
yr
n .2740563856862964 1.1555e-09 deg/d
Q 2.838172279916273 7.9774e-09 au
  Orbit Determination Parameters
   # obs. used (total)      727  
   data-arc span      7630 days (20.89 yr)  
   first obs. used      1999-10-21  
   last obs. used      2020-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54858  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:52:09  

Additional Information
 Earth MOID = .864136 au 
 Jupiter MOID = 2.59386 au 
 T_jup = 3.528 
[ 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 16.47   n/a E2021B55  

102871 (1999 WB11)          Discovered 1999-Nov-30 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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