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362203 (2009 HJ31)
Classification: Main-belt Asteroid          SPK-ID: 2362203
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1337126834545369 3.7023e-08  
a 2.554203753724321 1.7902e-08 au
q 2.212674315724191 9.6473e-08 au
i 6.118998414897113 3.2143e-06 deg
node 115.6866869641185 8.9188e-05 deg
peri 345.6748424596082 0.00010041 deg
M 43.38850369304577 5.3478e-05 deg
tp 2459020.797587509030
(2020-Jun-20.29758751)
0.00022102 TDB
period 1491.014047279027
4.08
1.5675e-05
4.292e-08
d
yr
n .2414464173942353 2.5384e-09 deg/d
Q 2.895733191724451 2.0296e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      5840 days (15.99 yr)  
   first obs. used      2005-04-18  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57823  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 12:18:06  

Additional Information
 Earth MOID = 1.22996 au 
 Jupiter MOID = 2.23814 au 
 T_jup = 3.418 
[ 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 17.06   n/a MPCxxxxx  

362203 (2009 HJ31)          Discovered 2007-Nov-17 by CSS at Catalina
Reference: Last Updated: 2013-04-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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