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100894 (1998 HK145)
Classification: Main-belt Asteroid          SPK-ID: 2100894
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1642210644723126 3.7597e-08  
a 2.35264785955393 1.0018e-08 au
q 1.966293523729476 8.7356e-08 au
i 7.328498319963733 4.3424e-06 deg
node 75.54609155528441 3.306e-05 deg
peri 189.9346125615599 3.5456e-05 deg
M 9.341588712865683 1.2856e-05 deg
tp 2458966.297956115084
(2020-Apr-26.79795612)
4.7063e-05 TDB
period 1318.055865766394
3.61
8.4189e-06
2.305e-08
d
yr
n .2731295458335334 1.7446e-09 deg/d
Q 2.739002195378384 1.1663e-08 au
  Orbit Determination Parameters
   # obs. used (total)      656  
   data-arc span      8137 days (22.28 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5573  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:04:26  

Additional Information
 Earth MOID = .950997 au 
 Jupiter MOID = 2.33769 au 
 T_jup = 3.527 
[ 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 16.0   n/a MPO436470  

100894 (1998 HK145)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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