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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1049987160376311 7.4858e-08  
a 3.04299867818277 4.5672e-08 au
q 2.72348772406937 2.1456e-07 au
i 2.452745049307485 9.9992e-06 deg
node 342.0286617123105 0.00021846 deg
peri 127.7060681354521 0.00022755 deg
M 191.1675103332871 5.7976e-05 deg
tp 2458509.794567522658
(2019-Jan-26.29456752)
0.00031302 JED
period 1938.880632243005
5.31
4.3651e-05
1.195e-07
d
yr
n .1856741431181 4.1802e-09 deg/d
Q 3.362509632296169 5.0468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      6829 days (18.70 yr)  
   first obs. used      1996-10-06  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54704  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 15:28:25  

Additional Information
 Earth MOID = 1.73952 au 
 Jupiter MOID = 1.74234 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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