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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439139413326983 4.8218e-08  
a 2.324849874688384 1.2165e-08 AU
q 1.990271566215149 1.0953e-07 AU
i 1.122345526983835 5.8837e-06 deg
node 25.28245668629539 0.00022978 deg
peri 141.3056721049228 0.00023036 deg
M 100.7582031492464 1.9453e-05 deg
tp 2456638.116253216716
(2013-Dec-11.61625322)
6.9286e-05 JED
period 1294.764542880376
3.54
1.0163e-05
2.782e-08
d
yr
n .2780428317871079 2.1823e-09 deg/d
Q 2.65942818316162 1.3916e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1212  
   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      .5207  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:43:10  

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 (399)
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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