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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1895913650665182 5.8277e-08  
a 2.23361141091356 9.2675e-09 au
q 1.810137974490307 1.2894e-07 au
i 3.870671511502088 6.0083e-06 deg
node 43.86254783478594 5.9721e-05 deg
peri 317.0406171756739 6.1459e-05 deg
M 52.78793066507906 1.4923e-05 deg
tp 2457221.710506866913
(2015-Jul-18.21050687)
5.0322e-05 JED
period 1219.297985675544
3.34
7.5885e-06
2.078e-08
d
yr
n .2952518615049989 1.8376e-09 deg/d
Q 2.657084847336814 1.1025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1274  
   data-arc span      10988 days (30.08 yr)  
   first obs. used      1985-11-17  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50046  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:23:13  

Additional Information
 Earth MOID = .807803 au 
 Jupiter MOID = 2.78761 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 14.0 mag n/a MPO347629  

13165 (1995 WS1)          Discovered 1995-Nov-16 by Ueda, S., Kaneda, H. at Kushiro
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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