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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06066008857885032 1.0045e-07  
a 3.085577674763164 5.7402e-08 au
q 2.898406259695108 3.4174e-07 au
i 15.48156538200933 9.2715e-06 deg
node 33.89849816736851 2.5161e-05 deg
peri 318.5984431931191 6.4134e-05 deg
M 239.1497960852129 6.0727e-05 deg
tp 2459665.081180812760
(2022-Mar-26.58118081)
0.00034183 TDB
period 1979.717181621729
5.42
5.5244e-05
1.512e-07
d
yr
n .1818441559945942 5.0744e-09 deg/d
Q 3.272749089831221 6.0884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      7148 days (19.57 yr)  
   first obs. used      2000-10-02  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:02:01  

Additional Information
 Earth MOID = 1.91377 au 
 Jupiter MOID = 2.03088 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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