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392157 (2009 HB84)
Classification: Main-belt Asteroid          SPK-ID: 2392157
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1735014738890547 6.7144e-08  
a 3.17805543372744 4.8534e-08 au
q 2.62665813187461 2.0929e-07 au
i 19.17471380646409 1.5656e-05 deg
node 59.84453526172003 2.9181e-05 deg
peri 74.05763750125877 5.6439e-05 deg
M 57.34523393325062 4.4984e-05 deg
tp 2458670.863376390187
(2019-Jul-06.36337639)
0.00025789 TDB
period 2069.381818856345
5.67
4.7404e-05
1.298e-07
d
yr
n .1739649960774063 3.9851e-09 deg/d
Q 3.72945273558027 5.6955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      6210 days (17.00 yr)  
   first obs. used      2003-04-27  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59792  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 01:22:42  

Additional Information
 Earth MOID = 1.71702 au 
 Jupiter MOID = 1.80838 au 
 T_jup = 3.091 
[ 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 15.6   n/a MPO427953  

392157 (2009 HB84)          Discovered 2009-Mar-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

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