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171429 Hunstead (2007 RD5)
Classification: Main-belt Asteroid          SPK-ID: 2171429
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0930688389939668 1.1612e-07  
a 3.115456030795412 5.1499e-08 AU
q 2.825504155072531 3.7321e-07 AU
i 15.51386249274248 2.1798e-05 deg
node 20.57127884605108 3.2292e-05 deg
peri 291.7451122976336 0.00012224 deg
M 100.9920267513144 0.00011653 deg
tp 2456237.036934772186
(2012-Nov-05.53693477)
0.00065248 JED
period 2008.541763217689
5.50
4.9803e-05
1.364e-07
d
yr
n .1792345106249019 4.4442e-09 deg/d
Q 3.405407906518294 5.6292e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      4992 days (13.67 yr)  
   first obs. used      2000-03-27  
   last obs. used      2013-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60834  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 12:49:26  

Additional Information
 Earth MOID = 1.85683 AU 
 T_jup = 3.155 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4 mag n/a MPO273334  

171429 Hunstead           Discovered 2007 Sept. 1 by K. Sárneczky and L. Kiss at Siding Spring.
Richard (Dick) W. Hunstead (b. 1943) is an Australian astronomer who has spent most of his career in Sydney. His primary research interest is the high-redshift universe, including quasars, high-redshift radio galaxies, clusters of galaxies and giant radio galaxies. He is also renowned as an enthusiastic teacher.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05

[ show close-approach data ]
Alternate Designations
 2007 RD5 = 2000 FL65 = 2002 TB195 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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