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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07734612123141472 6.4822e-08  
a 3.043580771905089 3.9582e-08 au
q 2.808171604543715 1.9957e-07 au
i 1.113232390621713 6.5865e-06 deg
node 78.44964398063817 0.00034779 deg
peri 101.8070268817798 0.00035084 deg
M 316.1610563408201 5.0939e-05 deg
tp 2457836.674635947112
(2017-Mar-24.17463595)
0.00027688 JED
period 1939.436990132782
5.31
3.7834e-05
1.036e-07
d
yr
n .1856208795808071 3.621e-09 deg/d
Q 3.278989939266463 4.2643e-08 au
  Orbit Determination Parameters
   # obs. used (total)      364  
   data-arc span      7733 days (21.17 yr)  
   first obs. used      1994-12-31  
   last obs. used      2016-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57565  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 20:59:39  

Additional Information
 Earth MOID = 1.81071 au 
 Jupiter MOID = 1.68149 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 MPO359643  

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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