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20307 Johnbarnes (1998 FH106)
Classification: Main-belt Asteroid          SPK-ID: 2020307
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .106446272488185 4.682e-08  
a 2.46297241757415 9.8845e-09 au
q 2.200798184482168 1.1204e-07 au
i 4.174579176770085 3.2966e-06 deg
node 287.5844090231146 5.6853e-05 deg
peri 89.45674629428628 5.8949e-05 deg
M 127.0660404853921 1.5198e-05 deg
tp 2458702.172624651621
(2019-Aug-06.67262465)
5.9476e-05 TDB
period 1411.847370391938
3.87
8.4991e-06
2.327e-08
d
yr
n .2549850695971915 1.535e-09 deg/d
Q 2.725146650666132 1.0937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1428  
   data-arc span      14834 days (40.61 yr)  
   first obs. used      1980-08-06  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50502  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:16:48  

Additional Information
 Earth MOID = 1.20557 au 
 Jupiter MOID = 2.7348 au 
 T_jup = 3.477 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.99   n/a E2021B10  

20307 Johnbarnes           Discovered 1998 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
John Barnes mentored a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Maggie L. Walker Governor's School, Richmond, Virginia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040415/MPCPages.arcLast Updated: 2004-04-20

[ show close-approach data ]
Alternate Designations
 1998 FH106 = 1980 PX1 = 1999 NR26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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