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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244621561571689 1.8334e-07  
a 2.314603420707451 3.1223e-08 AU
q 1.795062546246698 4.1295e-07 AU
i 24.72487392859977 1.8535e-05 deg
node 58.28399801780331 2.9636e-05 deg
peri 6.790906714449658 4.9274e-05 deg
M 83.37265302225853 3.9003e-05 deg
tp 2456502.624740603383
(2013-Jul-29.12474060)
0.00013656 JED
period 1286.214238068603
3.52
2.6025e-05
7.125e-08
d
yr
n .2798911638084344 5.6633e-09 deg/d
Q 2.834144295168204 3.8231e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      6719 days (18.40 yr)  
   first obs. used      1995-11-16  
   last obs. used      2014-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61118  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 08:28:04  

Additional Information
 Earth MOID = .808209 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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