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359275 (2009 HB2)
Classification: Main-belt Asteroid          SPK-ID: 2359275
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2270340177339695 6.0471e-08  
a 2.637222169787178 4.0678e-08 au
q 2.038483024923298 1.5453e-07 au
i 11.93781480417229 5.9828e-06 deg
node 106.7106580854493 3.3261e-05 deg
peri 115.5937273864212 3.7348e-05 deg
M 202.1245200827497 2.6078e-05 deg
tp 2459686.510379644808
(2022-Apr-17.01037964)
0.00012571 TDB
period 1564.294447760828
4.28
3.6193e-05
9.909e-08
d
yr
n .230135701443749 5.3246e-09 deg/d
Q 3.235961314651057 4.9913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      143  
   data-arc span      4334 days (11.87 yr)  
   first obs. used      2007-12-19  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67689  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 11:15:28  

Additional Information
 Earth MOID = 1.06137 au 
 Jupiter MOID = 1.87476 au 
 T_jup = 3.330 
[ 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 16.4   n/a MPO455593  

359275 (2009 HB2)          Discovered 2009-Jan-08 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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