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150138 (1995 WR1)
Classification: Main-belt Asteroid          SPK-ID: 2150138
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2240964168195733 1.4856e-07  
a 2.315200550935169 2.926e-08 au
q 1.796372403251896 3.3577e-07 au
i 24.72041312480155 1.6612e-05 deg
node 58.27435246460448 2.517e-05 deg
peri 6.743092636333651 4.0108e-05 deg
M 307.3211451393851 3.9435e-05 deg
tp 2457788.784763607492
(2017-Feb-04.28476361)
0.00014362 JED
period 1286.71200385896
3.52
2.4393e-05
6.678e-08
d
yr
n .2797828876394477 5.304e-09 deg/d
Q 2.834028698618443 3.5818e-08 au
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      7158 days (19.60 yr)  
   first obs. used      1995-11-16  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60237  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 15:09:46  

Additional Information
 Earth MOID = .808899 au 
 Jupiter MOID = 2.53411 au 
 T_jup = 3.428 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1 mag n/a MPO302728  

150138 (1995 WR1)          Discovered 1995-Nov-16 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

Alternate Designations
 1995 WR1 = 2002 TW163 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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