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JPL Small-Body Database Browser
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379771 (2011 HE28)
Classification: Main-belt Asteroid          SPK-ID: 2379771
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1606455954007782 7.8705e-08  
a 2.618176756586806 4.4628e-08 au
q 2.19757819266044 2.0875e-07 au
i 2.70090629306601 8.3546e-06 deg
node 229.4252733614235 0.00020639 deg
peri 1.85838338047098 0.00020846 deg
M 41.20946291322507 3.4193e-05 deg
tp 2458823.370325332836
(2019-Dec-05.87032533)		 0.00014506 TDB
period 1547.37961556191
4.24		 3.9563e-05
1.083e-07		 d
yr
n .232651378097204 5.9484e-09 deg/d
Q 3.038775320513171 5.1797e-08 au
   Orbit Determination Parameters
   # obs. used (total)      155  
   data-arc span      5309 days (14.54 yr)  
   first obs. used      2004-10-15  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5566  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:13:48  

Additional Information
 Earth MOID = 1.18696 au 
 Jupiter MOID = 1.95472 au 
 T_jup = 3.386 
[ 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 16.8   n/a MPO427887  

379771 (2011 HE28)          Discovered 2005-Dec-29 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2011 HE28 = 2005 YP252 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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