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259381 (2003 HL53)
Classification: Main-belt Asteroid          SPK-ID: 2259381
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .211192778190389 5.2351e-08  
a 3.007865982550096 2.9658e-08 au
q 2.372626409270977 1.4998e-07 au
i 12.32941228680572 4.4662e-06 deg
node 103.526056764483 2.7722e-05 deg
peri 187.593522163857 3.124e-05 deg
M 46.5092965884818 1.4201e-05 deg
tp 2458754.336634735043
(2019-Sep-27.83663474)		 7.3838e-05 TDB
period 1905.399952174962
5.22		 2.8181e-05
7.716e-08		 d
yr
n .1889367109456835 2.7944e-09 deg/d
Q 3.643105555829215 3.5922e-08 au
   Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      6442 days (17.64 yr)  
   first obs. used      2003-03-26  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51052  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:50:26  

Additional Information
 Earth MOID = 1.35692 au 
 Jupiter MOID = 1.55756 au 
 T_jup = 3.182 
[ 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 15.3   n/a MPO437204  

259381 (2003 HL53)          Discovered 2003-Apr-30 by Kessel, J. W. at Goodricke-Pigott
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

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