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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439139412179857 4.8205e-08  
a 2.324849874606567 1.2157e-08 AU
q 1.990271566411796 1.0949e-07 AU
i 1.122345345867477 5.8686e-06 deg
node 25.28245348323813 0.0002296 deg
peri 141.3056764205981 0.00023017 deg
M 100.7582021492861 1.9419e-05 deg
tp 2456638.116256832272
(2013-Dec-11.61625683)
6.9156e-05 JED
period 1294.764542812027
3.54
1.0156e-05
2.781e-08
d
yr
n .2780428318017855 2.1809e-09 deg/d
Q 2.659428182801338 1.3906e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1221  
   data-arc span      11604 days (31.77 yr)  
   first obs. used      1983-09-12  
   last obs. used      2015-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51939  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:25:13  

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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