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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09087869005210819 1.0044e-07  
a 3.12196711509206 4.5409e-08 au
q 2.838246833286734 3.1166e-07 au
i 15.52270942168918 1.0672e-05 deg
node 20.44553079513539 3.2188e-05 deg
peri 292.4845267047064 7.7966e-05 deg
M 207.7191731760262 7.7551e-05 deg
tp 2458252.782632283824
(2018-May-14.28263228)
0.00044262 JED
period 2014.841618747195
5.52
4.3959e-05
1.204e-07
d
yr
n .1786740936113102 3.8983e-09 deg/d
Q 3.405687396897385 4.9536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      186  
   data-arc span      5405 days (14.80 yr)  
   first obs. used      2000-03-27  
   last obs. used      2015-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55614  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 18:36:34  

Additional Information
 Earth MOID = 1.86808 au 
 Jupiter MOID = 1.9416 au 
 T_jup = 3.153 
[ 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 15.5 mag n/a MPO352046  

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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