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10717 Dickwalker (1983 XC)
Classification: Main-belt Asteroid          SPK-ID: 2010717
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714812121411738 6.9426e-08  
a 2.291279452904523 1.5938e-08 AU
q 1.89836807496629 1.5849e-07 AU
i 7.637130185737464 7.1815e-06 deg
node 84.31617885534904 5.4783e-05 deg
peri 309.4081104927386 5.8184e-05 deg
M 2.80098956315776 2.3195e-05 deg
tp 2456990.643459572211
(2014-Nov-29.14345957)
8.1594e-05 JED
period 1266.8217692335
3.47
1.3218e-05
3.619e-08
d
yr
n .2841757291697163 2.9651e-09 deg/d
Q 2.684190830842756 1.8671e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      690  
   data-arc span      11262 days (30.83 yr)  
   first obs. used      1983-11-06  
   last obs. used      2014-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55363  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:57:18  

Additional Information
 Earth MOID = .915773 AU 
 T_jup = 3.567 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a PDS3 (MPC 34748)  

10717 Dickwalker           Discovered 1983 Dec. 1 by E. Bowell at Lowell Observatory's Anderson Mesa Station.
Richard L. ("Dick") Walker (1938-2005) was an astronomer at the U.S. Naval Observatory, first in Washington, D.C., then in Flagstaff, Arizona. A specialist in double stars, Walker was also involved in the search for new Saturnian satellites at the ring-plane passage in 1966.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1983 XC = 1990 WB16 = 1993 QP10 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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