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305966 (2009 HR58)
Classification: Main-belt Asteroid          SPK-ID: 2305966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09844628609466681 5.5755e-08  
a 2.792783281263463 4.4596e-08 au
q 2.517844139355798 1.586e-07 au
i 9.866642298845157 6.4009e-06 deg
node 118.3376467258976 3.7749e-05 deg
peri 344.4555444037055 5.1665e-05 deg
M 152.4607903573396 3.6163e-05 deg
tp 2457878.545301981271
(2017-May-05.04530198)
0.00017145 TDB
period 1704.724806145741
4.67
4.0832e-05
1.118e-07
d
yr
n .2111777799573022 5.0582e-09 deg/d
Q 3.067722423171129 4.8986e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      6495 days (17.78 yr)  
   first obs. used      2000-06-05  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52701  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-05 16:26:29  

Additional Information
 Earth MOID = 1.53629 au 
 Jupiter MOID = 2.05177 au 
 T_jup = 3.300 
[ 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 16.4   n/a MPO437358  

305966 (2009 HR58)          Discovered 2009-Apr-23 by Hobart, J. at Kachina
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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