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13165 (1995 WS1)
Classification: Main-belt Asteroid          SPK-ID: 2013165
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189787121835499 7.0055e-08  
a 2.233587119606648 1.5986e-08 AU
q 1.80968104880766 1.537e-07 AU
i 3.870914427367221 6.5534e-06 deg
node 43.86894105336359 9.5287e-05 deg
peri 317.1068009822007 9.7169e-05 deg
M 235.5943630656537 2.6058e-05 deg
tp 2457221.847411235218
(2015-Jul-18.34741124)
9.1425e-05 JED
period 1219.278095290237
3.34
1.309e-05
3.584e-08
d
yr
n .2952566780216827 3.1698e-09 deg/d
Q 2.657493190405636 1.902e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      909  
   data-arc span      10366 days (28.38 yr)  
   first obs. used      1985-11-17  
   last obs. used      2014-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55011  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:03:26  

Additional Information
 Earth MOID = .807862 AU 
 T_jup = 3.613 
[ 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 13.9 mag n/a MPO263467  

13165 (1995 WS1)          Discovered 1995-Nov-16 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 WS1 = 1985 WE = 1998 QR22 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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