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166747 Gordonrichards (2002 TB316)
Classification: Main-belt Asteroid          SPK-ID: 2166747
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2440886599669529 7.9819e-08  
a 3.13729937320611 3.4079e-08 au
q 2.371520173285069 2.4408e-07 au
i 16.63924257184464 1.2185e-05 deg
node 170.2677934775179 2.699e-05 deg
peri 257.5648841330789 3.8477e-05 deg
M 152.4323310301347 2.5447e-05 deg
tp 2456741.077021659670
(2014-Mar-24.57702166)
0.00013553 JED
period 2029.702426720448
5.56
3.3072e-05
9.055e-08
d
yr
n .1773659011590584 2.89e-09 deg/d
Q 3.90307857312715 4.2398e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      6558 days (17.95 yr)  
   first obs. used      1998-02-27  
   last obs. used      2016-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63841  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 08:25:06  

Additional Information
 Earth MOID = 1.44769 au 
 Jupiter MOID = 1.88789 au 
 T_jup = 3.101 
[ 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 15.6 mag n/a MPO320738  

166747 Gordonrichards           Discovered 2002 Oct. 4 by the Sloan Digital Sky Survey at Apache Point.
Gordon Richards (b. 1972) is an American astronomer and a contributor to the Sloan Digital Sky Survey, known for his work on the demographics and physics of quasars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20130127/MPCPages.arcLast Updated: 2013-01-31

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