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JPL Small-Body Database Browser
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441446 (2008 HS57)
Classification: Main-belt Asteroid          SPK-ID: 2441446
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0508006393214463 1.0095e-07  
a 3.122926550897444 5.5298e-08 au
q 2.964279885557935 3.1829e-07 au
i 11.72702233147636 7.8245e-06 deg
node 119.749853617153 5.3777e-05 deg
peri 83.83056244969282 0.00010078 deg
M 13.85404071056748 8.1131e-05 deg
tp 2458522.926204553223
(2019-Feb-08.42620455)
0.00045492 TDB
period 2015.770484890955
5.52
5.354e-05
1.466e-07
d
yr
n .1785917606683652 4.7435e-09 deg/d
Q 3.281573216236954 5.8107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      79  
   data-arc span      4497 days (12.31 yr)  
   first obs. used      2007-01-17  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62847  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:13:01  

Additional Information
 Earth MOID = 1.99195 au 
 Jupiter MOID = 1.80531 au 
 T_jup = 3.181 
[ 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 16.3   n/a MPO437716  

441446 (2008 HS57)          Discovered 2008-Apr-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

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