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166746 Marcpostman (2002 TY311)
Classification: Main-belt Asteroid          SPK-ID: 2166746
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08163972262845412 6.8842e-08  
a 2.984385223333569 3.8521e-08 AU
q 2.740740841484159 2.1999e-07 AU
i 11.90896874673341 9.7735e-06 deg
node 162.0088244740524 3.2353e-05 deg
peri 98.76909997623056 9.8872e-05 deg
M 248.5324396063783 0.00010207 deg
tp 2457583.578118538793
(2016-Jul-14.07811854)
0.00053797 JED
period 1883.13193482233
5.16
3.646e-05
9.982e-08
d
yr
n .1911708857690661 3.7013e-09 deg/d
Q 3.228029605182979 4.1666e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      5520 days (15.11 yr)  
   first obs. used      2000-02-12  
   last obs. used      2015-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52884  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 22:28:14  

Additional Information
 Earth MOID = 1.75952 AU 
 T_jup = 3.221 
[ 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 15.0 mag n/a MPO241202  

166746 Marcpostman           Discovered 2002 Oct. 4 by the Sloan Digital Sky Survey at Apache Point.
Marc Postman (b. 1958) is an American astronomer and a contributor to the Sloan Digital Sky Survey, known for observational studies of clusters of galaxies and large-scale structure in the universe.
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 ]
Alternate Designations
 2002 TY311 = 2000 FO56 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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