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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08163973350792762 7.2225e-08  
a 2.984385230143509 4.1146e-08 AU
q 2.740740815269598 2.2604e-07 AU
i 11.90897054806576 9.9464e-06 deg
node 162.0088405228763 3.7837e-05 deg
peri 98.76908649611468 0.00010047 deg
M 248.5324350633347 0.00010246 deg
tp 2457583.578144298852
(2016-Jul-14.07814430)
0.00054035 JED
period 1883.131941267887
5.16
3.8944e-05
1.066e-07
d
yr
n .1911708851147291 3.9535e-09 deg/d
Q 3.22802964501742 4.4505e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      222  
   data-arc span      5454 days (14.93 yr)  
   first obs. used      2000-02-12  
   last obs. used      2015-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51411  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 18:30:26  

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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