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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244619500540428 2.1053e-07  
a 2.31460341706256 3.0123e-08 AU
q 1.795063020466947 4.8392e-07 AU
i 24.72488447378822 2.4021e-05 deg
node 58.28399279189973 3.1819e-05 deg
peri 6.790949502617839 5.674e-05 deg
M 83.37262378119709 4.6897e-05 deg
tp 2456502.624845779966
(2013-Jul-29.12484578)
0.00016442 JED
period 1286.21423503043
3.52
2.5109e-05
6.874e-08
d
yr
n .2798911644695668 5.4639e-09 deg/d
Q 2.834143813658172 3.6885e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      263  
   data-arc span      6682 days (18.29 yr)  
   first obs. used      1995-11-25  
   last obs. used      2014-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61022  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 13:15:10  

Additional Information
 Earth MOID = .80821 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 15.0 mag n/a MPO280782  

150138 (1995 WR1)          Discovered 1995-Nov-16 by Ueda, S., Kaneda, H. at Kushiro (399)
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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