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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1440265215169449 4.7595e-08  
a 2.324578522487861 1.1661e-08 au
q 1.989777563900935 1.0752e-07 au
i 1.122223743691163 5.3816e-06 deg
node 25.27991631549265 0.00020973 deg
peri 141.4365095826666 0.00021018 deg
M 267.4267074964018 1.8149e-05 deg
tp 2457933.387868049056
(2017-Jun-28.88786805)
6.644e-05 JED
period 1294.537865691687
3.54
9.7408e-06
2.667e-08
d
yr
n .2780915178619729 2.0925e-09 deg/d
Q 2.659379481074787 1.334e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1359  
   data-arc span      11811 days (32.34 yr)  
   first obs. used      1983-09-12  
   last obs. used      2016-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53835  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:24:42  

Additional Information
 Earth MOID = .995922 au 
 Jupiter MOID = 2.31487 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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