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JPL Small-Body Database Browser
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379145 (2009 HP55)
Classification: Main-belt Asteroid          SPK-ID: 2379145
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1391587227036692 9.4723e-08  
a 2.238413626322244 1.8596e-08 au
q 1.926918845200752 2.2114e-07 au
i 4.285439864533256 8.2006e-06 deg
node 220.6284869106291 9.035e-05 deg
peri 65.13847214947319 9.5478e-05 deg
M 304.5776275997191 2.9693e-05 deg
tp 2458788.817877063730
(2019-Nov-01.31787706)
0.00010149 TDB
period 1223.232294231406
3.35
1.5243e-05
4.173e-08
d
yr
n .2943022365397889 3.6674e-09 deg/d
Q 2.549908407443736 2.1183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      83  
   data-arc span      5703 days (15.61 yr)  
   first obs. used      2003-10-19  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59612  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:57:14  

Additional Information
 Earth MOID = .914748 au 
 Jupiter MOID = 2.58412 au 
 T_jup = 3.620 
[ 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 18.0   n/a MPO386490  

379145 (2009 HP55)          Discovered 2009-Apr-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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