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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439139405227812 4.8217e-08  
a 2.324849874931767 1.2165e-08 AU
q 1.990271568306441 1.0953e-07 AU
i 1.122345519578598 5.8837e-06 deg
node 25.28245700701833 0.00022978 deg
peri 141.3056719146388 0.00023036 deg
M 100.7582028642422 1.9453e-05 deg
tp 2456638.116254184848
(2013-Dec-11.61625418)
6.9285e-05 JED
period 1294.764543083694
3.54
1.0162e-05
2.782e-08
d
yr
n .2780428317434465 2.1823e-09 deg/d
Q 2.659428181557092 1.3916e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1217  
   data-arc span      11242 days (30.78 yr)  
   first obs. used      1983-09-12  
   last obs. used      2014-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51934  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:57:46  

Additional Information
 Earth MOID = .998217 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 14.0 mag n/a MPO257007  

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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