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196415 (2003 HE)
Classification: Main-belt Asteroid          SPK-ID: 2196415
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1422046001242506 8.5911e-08  
a 2.377723351865113 2.3571e-08 au
q 2.039600153407042 1.9729e-07 au
i 1.601381641120868 8.3122e-06 deg
node 230.599048945824 0.00020969 deg
peri 357.6281219828276 0.0002107 deg
M 220.5768933289451 2.0144e-05 deg
tp 2458119.147950758439
(2017-Dec-31.64795076)
7.5691e-05 JED
period 1339.184491947639
3.67
1.9913e-05
5.452e-08
d
yr
n .2688203172637065 3.9973e-09 deg/d
Q 2.715846550323184 2.6923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      4637 days (12.70 yr)  
   first obs. used      2003-04-21  
   last obs. used      2015-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59775  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 09:35:58  

Additional Information
 Earth MOID = 1.02937 au 
 Jupiter MOID = 2.26806 au 
 T_jup = 3.526 
[ 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 17.2 mag n/a MPO251506  

196415 (2003 HE)          Discovered 2003-Apr-21 by McNaught, R. H. at Siding Spring
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 2003 HE = 2004 TE188 = 2006 AV45 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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