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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2243913757010962 1.4853e-07  
a 2.314550621738065 2.9173e-08 AU
q 1.795185423596433 3.3565e-07 AU
i 24.7248841063835 1.6614e-05 deg
node 58.28324318426051 2.5167e-05 deg
peri 6.777878790731263 4.008e-05 deg
M 139.3766630227676 3.7102e-05 deg
tp 2456502.549682018480
(2013-Jul-29.04968202)
0.00012612 JED
period 1286.17022811103
3.52
2.4317e-05
6.658e-08
d
yr
n .2799007410774265 5.292e-09 deg/d
Q 2.833915819879697 3.572e-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 = .808969 AU 
 T_jup = 3.429 
[ 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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