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100430 (1996 HK18)
Classification: Main-belt Asteroid          SPK-ID: 2100430
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1497774023538356 8.6347e-08  
a 2.576262274199588 1.8895e-08 au
q 2.190396402987789 2.2586e-07 au
i 14.42334899191271 5.7801e-06 deg
node 51.11620318952225 1.6667e-05 deg
peri 320.7761691399801 2.2657e-05 deg
M 202.7534561626246 1.4883e-05 deg
tp 2459860.223790722201
(2022-Oct-07.72379072)
6.3644e-05 TDB
period 1510.370650216745
4.14
1.6616e-05
4.549e-08
d
yr
n .2383520892360683 2.6222e-09 deg/d
Q 2.962128145411388 2.1725e-08 au
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      8797 days (24.08 yr)  
   first obs. used      1996-04-18  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49601  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:06:13  

Additional Information
 Earth MOID = 1.21015 au 
 Jupiter MOID = 2.52796 au 
 T_jup = 3.367 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.26   n/a E2021B55  

100430 (1996 HK18)          Discovered 1996-Apr-18 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1996 HK18 = 2003 AB72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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