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268715 (2006 HT56)
Classification: Main-belt Asteroid          SPK-ID: 2268715
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1485933226846333 4.9562e-08  
a 3.188763572905376 3.8167e-08 au
q 2.714934598351643 1.5062e-07 au
i 15.09809386226007 5.9596e-06 deg
node 52.20006551272338 2.176e-05 deg
peri 249.0931958362964 3.0932e-05 deg
M 105.6786363695389 2.3488e-05 deg
tp 2458389.956506906031
(2018-Sep-28.45650691)
0.00013421 TDB
period 2079.849485805659
5.69
3.7342e-05
1.022e-07
d
yr
n .1730894482782964 3.1076e-09 deg/d
Q 3.662592547459108 4.3839e-08 au
  Orbit Determination Parameters
   # obs. used (total)      345  
   data-arc span      6260 days (17.14 yr)  
   first obs. used      2002-10-31  
   last obs. used      2019-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:11:22  

Additional Information
 Earth MOID = 1.74444 au 
 Jupiter MOID = 1.66542 au 
 T_jup = 3.127 
[ 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 15.0   n/a MPO411105  
diameter diameter 5.078 km 1.391 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

268715 (2006 HT56)          Discovered 2006-Apr-19 by CSS at Catalina
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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