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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1600554905329984 7.9782e-08  
a 2.616620991987511 4.5862e-08 au
q 2.197816435576009 2.1005e-07 au
i 2.701884087605492 8.4801e-06 deg
node 229.4397299309684 0.00020638 deg
peri 1.833209847465794 0.00020846 deg
M 308.1142345445677 3.3309e-05 deg
tp 2458823.320623975941
(2019-Dec-05.82062398)		 0.00014534 TDB
period 1546.000602038733
4.23		 4.0646e-05
1.113e-07		 d
yr
n .2328589002651505 6.1221e-09 deg/d
Q 3.035425548399013 5.3203e-08 au
   Orbit Determination Parameters
   # obs. used (total)      151  
   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      .54191  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:04:37  

Additional Information
 Earth MOID = 1.1872 au 
 Jupiter MOID = 1.95845 au 
 T_jup = 3.387 
[ 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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