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129101 Geoffcollyer (2004 XF6)
Classification: Main-belt Asteroid          SPK-ID: 2129101
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07688557979935923 8.0745e-08  
a 3.043866367828233 5.2261e-08 AU
q 2.809836937305989 2.3124e-07 AU
i 1.113237184214866 7.9285e-06 deg
node 78.45037773395892 0.00041275 deg
peri 101.7584061916049 0.00041719 deg
M 204.7955247653423 6.1777e-05 deg
tp 2457836.754637042709
(2017-Mar-24.25463704)
0.0003386 JED
period 1939.709978595704
5.31
4.9955e-05
1.368e-07
d
yr
n .1855947559029572 4.7797e-09 deg/d
Q 3.277895798350476 5.6279e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      6774 days (18.55 yr)  
   first obs. used      1994-12-31  
   last obs. used      2013-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59162  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 03:58:03  

Additional Information
 Earth MOID = 1.8142 AU 
 T_jup = 3.234 
[ 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 15.2 mag n/a MPO266433  

129101 Geoffcollyer           Discovered 2004 Dec. 9 at the Jarnac Observatory.
Canadian computer scientist Geoff Collyer (b. 1958) is co-author of C News and designer of the NOV database used by USENET newsreaders. While at Bell Laboratories, he contributed to the Plan 9 operating system. Geoff is a noted Plan 9 and UNIX enthusiast.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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