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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1438736337138075 5.9527e-08  
a 2.324533238342291 1.4994e-08 AU
q 1.990094194653461 1.4016e-07 AU
i 1.1224098473701 6.0392e-06 deg
node 25.28484337889054 0.00027759 deg
peri 141.2531415115041 0.00027806 deg
M 45.19709061345454 2.2589e-05 deg
tp 2456637.978790188109
(2013-Dec-11.47879019)
8.0562e-05 JED
period 1294.5000383468
3.54
1.2525e-05
3.429e-08
d
yr
n .278099644137326 2.6908e-09 deg/d
Q 2.658972282031121 1.7152e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1135  
   data-arc span      11135 days (30.49 yr)  
   first obs. used      1983-09-12  
   last obs. used      2014-03-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55491  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:11:52  

Additional Information
 Earth MOID = .997524 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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