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20234 Billgibson (1998 AV9)
Classification: Main-belt Asteroid          SPK-ID: 2020234
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06476965055878872 4.295e-08  
a 2.172607641164742 1.0561e-08 AU
q 2.031888603445148 9.2896e-08 AU
i .508803957335575 4.5115e-06 deg
node 311.5905092642582 0.00062258 deg
peri 210.5425991811619 0.00062423 deg
M 122.0899375577455 4.5776e-05 deg
tp 2456603.813197825429
(2013-Nov-07.31319783)
0.00014836 JED
period 1169.68893292538
3.20
8.5285e-06
2.335e-08
d
yr
n .3077741353845622 2.2441e-09 deg/d
Q 2.313326678884337 1.1245e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1053  
   data-arc span      7532 days (20.62 yr)  
   first obs. used      1993-11-13  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50069  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:34:07  

Additional Information
 Earth MOID = 1.04043 AU 
 T_jup = 3.685 
[ 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 14.7 mag n/a MPO257012  

20234 Billgibson           Discovered 1998 Jan. 6 by M. W. Buie at the Anderson Mesa station of the Lowell Observatory.
William C. Gibson (b. 1945) is the payload manager of the New Horizons Pluto Kuiper Belt mission. Additionally, he has been responsible for the development of numerous instruments that have studied the earth's magnetosphere, the planets and comets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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