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362204 (2009 HN31)
Classification: Main-belt Asteroid          SPK-ID: 2362204
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05277800598702916 6.2101e-08  
a 2.685514944024937 3.0768e-08 au
q 2.543778820230933 1.7692e-07 au
i 6.910707781052164 5.9881e-06 deg
node 121.5252839535061 5.0254e-05 deg
peri 253.6622295294317 7.4751e-05 deg
M 72.44582541445594 5.3865e-05 deg
tp 2458877.017604031111
(2020-Jan-28.51760403)
0.00024182 TDB
period 1607.458564832123
4.40
2.7625e-05
7.563e-08
d
yr
n .2239560060060378 3.8488e-09 deg/d
Q 2.827251067818942 3.2392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      9538 days (26.11 yr)  
   first obs. used      1995-02-05  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61134  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 12:18:06  

Additional Information
 Earth MOID = 1.55224 au 
 Jupiter MOID = 2.42762 au 
 T_jup = 3.362 
[ 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 16.74   n/a MPCxxxxx  

362204 (2009 HN31)          Discovered 2008-Jan-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-04-29

Alternate Designations
 2009 HN31 = 2013 EH83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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