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13493 Lockwood (1985 PT)
Classification: Main-belt Asteroid          SPK-ID: 2013493
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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Orbit Viewer

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Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2006419017275252 7.2098e-08  
a 2.664233974370799 2.0814e-08 au
q 2.129677003105959 1.9948e-07 au
i 12.89120376677169 6.3993e-06 deg
node 139.3687936079689 2.6302e-05 deg
peri 201.3187087149022 3.0424e-05 deg
M 34.78433549092129 1.8815e-05 deg
tp 2457447.024809736082
8.2143e-05 JED
period 1588.389363063471
n .2266446806881661 2.656e-09 deg/d
Q 3.198790945635638 2.4991e-08 au
  Orbit Determination Parameters
   # obs. used (total)      878  
   data-arc span      10976 days (30.05 yr)  
   first obs. used      1985-08-14  
   last obs. used      2015-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47088  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:49:46  

Additional Information
 Earth MOID = 1.12446 au 
 Jupiter MOID = 2.18947 au 
 T_jup = 3.320 
[ 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 13.6 mag n/a MPO347632  

13493 Lockwood           Discovered 1985 Aug. 14 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
George W. ("Wes") Lockwood (b. 1941), an astronomer at Lowell Observatory since 1973, is an expert on high-precision photometry. Central to his research has been a decades-long study of the seasonal variability of Saturn VI (Titan), Uranus, and Neptune, as well as activity cycles in the sun and solar-type stars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090209/MPCPages.arcLast Updated: 2009-02-11

Alternate Designations
 1985 PT = 1992 EP5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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