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469218 (2016 HE2)
Classification: Main-belt Asteroid          SPK-ID: 2469218
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1086572006280678 5.4139e-08  
a 2.968284342331753 5.4302e-08 au
q 2.64575887502586 1.6063e-07 au
i 14.06395497839446 8.391e-06 deg
node 49.95183924789586 2.4656e-05 deg
peri 120.886676338384 5.3025e-05 deg
M 329.9505684083285 4.2749e-05 deg
tp 2459156.415911964981
(2020-Nov-02.91591197)
0.00022219 TDB
period 1867.913146249002
5.11
5.1257e-05
1.403e-07
d
yr
n .1927284471030808 5.2887e-09 deg/d
Q 3.290809809637647 6.0202e-08 au
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      7733 days (21.17 yr)  
   first obs. used      1998-11-17  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57971  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 13:55:47  

Additional Information
 Earth MOID = 1.67926 au 
 Jupiter MOID = 1.76124 au 
 T_jup = 3.210 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO380668  

469218 (2016 HE2)          Discovered 2008-Sep-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-06-21

[ show close-approach data ]
Alternate Designations
 2016 HE2 = 2010 GF87 = 2015 AA256 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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