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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07667502309250565 8.7733e-08  
a 3.044475100130184 5.9289e-08 AU
q 2.811039901523143 2.534e-07 AU
i 1.113247027780122 8.7827e-06 deg
node 78.45078794972777 0.00045209 deg
peri 101.7350108534784 0.00045709 deg
M 167.7063023402235 6.9576e-05 deg
tp 2455896.613397472684
(2011-Dec-01.11339747)
0.00036982 JED
period 1940.29188151618
5.31
5.6679e-05
1.552e-07
d
yr
n .1855390951379384 5.4198e-09 deg/d
Q 3.277910298737224 6.3835e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      272  
   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      .58509  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-07 04:24:37  

Additional Information
 Earth MOID = 1.8147 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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