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173872 Andrewwest (2001 TJ245)
Classification: Main-belt Asteroid          SPK-ID: 2173872
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054592307420794 7.577e-08  
a 3.041836985718974 4.6475e-08 AU
q 2.721047197162246 2.1877e-07 AU
i 2.452900179809911 1.0432e-05 deg
node 342.0319342973859 0.0002185 deg
peri 127.6273185495344 0.00022866 deg
M 79.78341747407295 6.0649e-05 deg
tp 2456571.050140013544
(2013-Oct-05.55014001)
0.00032749 JED
period 1937.770460200764
5.31
4.441e-05
1.216e-07
d
yr
n .1857805180716306 4.2577e-09 deg/d
Q 3.362626774275703 5.1377e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      6801 days (18.62 yr)  
   first obs. used      1996-10-06  
   last obs. used      2015-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55393  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 22:11:11  

Additional Information
 Earth MOID = 1.73856 AU 
 T_jup = 3.230 
[ 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 15.9 mag n/a MPO248302  

173872 Andrewwest           Discovered 2001 Oct. 14 by the Sloan Digital Sky Survey at Apache Point.
Andrew A. West (b. 1977) is an American astronomer and a contributor to the Sloan Digital Sky Survey, known for his studies of magnetic activity and dynamics of low-mass stars.
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
 2001 TJ245 = 1996 TU24 = 2004 GY31 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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