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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1641827190369644 3.68e-08  
a 2.351983864773134 9.8642e-09 au
q 1.965828758723613 8.5072e-08 au
i 7.327469820391599 4.0837e-06 deg
node 75.53337019263091 3.2037e-05 deg
peri 189.8181023840583 3.4331e-05 deg
M 64.08377883971447 1.2015e-05 deg
tp 2458965.971543087023
(2020-Apr-26.47154309)
4.4006e-05 TDB
period 1317.497906917247
3.61
8.2884e-06
2.269e-08
d
yr
n .273245215882238 1.719e-09 deg/d
Q 2.738138970822655 1.1484e-08 au
  Orbit Determination Parameters
   # obs. used (total)      698  
   data-arc span      8266 days (22.63 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55633  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:29  

Additional Information
 Earth MOID = .948793 au 
 Jupiter MOID = 2.33713 au 
 T_jup = 3.528 
[ 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 16.05   n/a E2021B55  

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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