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305972 (2009 HG76)
Classification: Main-belt Asteroid          SPK-ID: 2305972
[ 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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04854150375201521 7.9266e-08  
a 3.052290181006866 3.7073e-08 au
q 2.904127425733282 2.4448e-07 au
i 2.91429133038296 7.0711e-06 deg
node 94.24089347406945 0.0001473 deg
peri 146.7080638480147 0.00016168 deg
M 354.2474383811905 6.3701e-05 deg
tp 2459031.624037852014
(2020-Jul-01.12403785)		 0.00034447 TDB
period 1947.76768493681
5.33		 3.5486e-05
9.716e-08		 d
yr
n .1848269702717033 3.3673e-09 deg/d
Q 3.200452936280449 3.8872e-08 au
   Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      9014 days (24.68 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62423  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:09:52  

Additional Information
 Earth MOID = 1.89178 au 
 Jupiter MOID = 1.78953 au 
 T_jup = 3.233 
[ 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 16.6   n/a MPO433971  

305972 (2009 HG76)          Discovered 2009-Apr-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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