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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1056573136284809 8.8098e-08  
a 3.042623395076229 5.5732e-08 AU
q 2.721147980769307 2.7369e-07 AU
i 2.452790233744136 1.2005e-05 deg
node 342.0314372091971 0.00021882 deg
peri 127.7213961994136 0.00024513 deg
M 42.52802023981583 9.376e-05 deg
tp 2456571.495829008891
(2013-Oct-05.99582901)
0.00050788 JED
period 1938.521969560565
5.31
5.3262e-05
1.458e-07
d
yr
n .1857084962940125 5.1025e-09 deg/d
Q 3.364098809383152 6.162e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6410 days (17.55 yr)  
   first obs. used      1996-10-06  
   last obs. used      2014-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56433  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 13:18:36  

Additional Information
 Earth MOID = 1.7384 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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