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19519 (1998 WB8)
Classification: Main-belt Asteroid          SPK-ID: 2019519
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .143987779961865 4.759e-08  
a 2.324865747641324 1.1656e-08 au
q 1.990113489929068 1.0753e-07 au
i 1.122300924177955 5.383e-06 deg
node 25.28074906013724 0.00021027 deg
peri 141.3822736256719 0.00021072 deg
M 211.8735397312819 1.7986e-05 deg
tp 2457933.252368846180
(2017-Jun-28.75236885)
6.6526e-05 JED
period 1294.77780294415
3.54
9.7377e-06
2.666e-08
d
yr
n .2780399842980074 2.0911e-09 deg/d
Q 2.659618005353579 1.3335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1349  
   data-arc span      11779 days (32.25 yr)  
   first obs. used      1983-09-12  
   last obs. used      2015-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52923  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:42:48  

Additional Information
 Earth MOID = .997218 au 
 Jupiter MOID = 2.31481 au 
 T_jup = 3.561 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO347675  

19519 (1998 WB8)          Discovered 1998-Nov-18 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 WB8 = 1996 ED14 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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