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20218 Dukewriter (1997 GT34)
Classification: Main-belt Asteroid          SPK-ID: 2020218
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1224823479801371 4.9407e-08  
a 3.040402718523322 2.659e-08 au
q 2.668007054753394 1.402e-07 au
i .8930804933780413 4.4546e-06 deg
node 91.10469769395328 0.00033841 deg
peri 133.1299266383803 0.00033888 deg
M 206.0226109189724 2.1397e-05 deg
tp 2458428.727307635259
(2018-Nov-06.22730764)
0.00011806 JED
period 1936.400094378736
5.30
2.5402e-05
6.955e-08
d
yr
n .185911992591335 2.4389e-09 deg/d
Q 3.41279838229325 2.9847e-08 au
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      7784 days (21.31 yr)  
   first obs. used      1994-10-26  
   last obs. used      2016-02-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56422  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:27:42  

Additional Information
 Earth MOID = 1.65882 au 
 Jupiter MOID = 1.56431 au 
 T_jup = 3.229 
[ 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 14.3 mag n/a MPO302189  

20218 Dukewriter           Discovered 1997 Apr. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Duke Writer mentored a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors. He teaches at the Loudoun County Academy of Science, Sterling, Virginia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

[ show close-approach data ]
Alternate Designations
 1997 GT34 = 1998 MH16 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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