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JPL Small-Body Database Browser
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305942 (2009 HE13)
Classification: Main-belt Asteroid          SPK-ID: 2305942
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06813661190370145 6.7317e-08  
a 2.639689553403576 2.4091e-08 au
q 2.459830050757061 1.7833e-07 au
i 5.079662831890512 6.4706e-06 deg
node 38.65226381537827 6.4223e-05 deg
peri 167.5884087837221 7.8296e-05 deg
M 113.4505079750169 4.8622e-05 deg
tp 2458106.835779947338
(2017-Dec-19.33577995)
0.00020939 TDB
period 1566.490290709796
4.29
2.1444e-05
5.871e-08
d
yr
n .2298131064935484 3.146e-09 deg/d
Q 2.81954905605009 2.5732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      7645 days (20.93 yr)  
   first obs. used      1998-11-16  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58913  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:41:34  

Additional Information
 Earth MOID = 1.45545 au 
 Jupiter MOID = 2.13935 au 
 T_jup = 3.387 
[ 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 16.7   n/a MPO450229  

305942 (2009 HE13)          Discovered 2009-Apr-17 by CSS at Catalina
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 HE13 = 2002 SX73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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