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JPL Small-Body Database Browser
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305951 (2009 HG26)
Classification: Main-belt Asteroid          SPK-ID: 2305951
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06045103566355807 1.0558e-07  
a 3.085807523143473 6.3419e-08 au
q 2.899267262511052 3.5015e-07 au
i 15.48113892483592 9.8804e-06 deg
node 33.90106467725398 3.4499e-05 deg
peri 318.8172294448472 7.3867e-05 deg
M 166.1601147919404 6.3573e-05 deg
tp 2457686.647803716758
(2016-Oct-25.14780372)
0.00034551 TDB
period 1979.938393000705
5.42
6.1037e-05
1.671e-07
d
yr
n .1818238392025927 5.6052e-09 deg/d
Q 3.272347783775896 6.7252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      130  
   data-arc span      6762 days (18.51 yr)  
   first obs. used      2000-10-02  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58639  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:10:50  

Additional Information
 Earth MOID = 1.91368 au 
 Jupiter MOID = 2.03127 au 
 T_jup = 3.168 
[ 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 15.5   n/a MPO455254  
diameter diameter 4.235 km 1.643 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305951 (2009 HG26)          Discovered 2009-Apr-18 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 HG26 = 2006 VL145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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