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

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .104296690076015 4.8456e-08  
a 3.043316859030267 2.9919e-08 au
q 2.725908983780875 1.5049e-07 au
i 2.451899627357223 6.1244e-06 deg
node 342.0065439082154 0.0001448 deg
peri 127.5397551731593 0.00014846 deg
M 16.91993282418135 3.2289e-05 deg
tp 2458509.358679121699
(2019-Jan-25.85867912)
0.00017369 TDB
period 1939.184738919079
5.31
2.8597e-05
7.829e-08
d
yr
n .1856450253422825 2.7376e-09 deg/d
Q 3.360724734279658 3.304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      262  
   data-arc span      8153 days (22.32 yr)  
   first obs. used      1996-10-06  
   last obs. used      2019-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51735  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:31:53  

Additional Information
 Earth MOID = 1.74373 au 
 Jupiter MOID = 1.73944 au 
 T_jup = 3.230 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO422665  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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