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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219363039735788 5.1346e-08  
a 3.041798763335894 2.818e-08 AU
q 2.670893064703312 1.4652e-07 AU
i .8931550534741858 5.0804e-06 deg
node 91.0977121702422 0.00036046 deg
peri 133.1486065616584 0.00036104 deg
M 94.5304998203255 2.3831e-05 deg
tp 2456491.680673494670
(2013-Jul-18.18067349)
0.00012852 JED
period 1937.733936561005
5.31
2.6928e-05
7.372e-08
d
yr
n .1857840197808117 2.5817e-09 deg/d
Q 3.412704461968475 3.1616e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      810  
   data-arc span      7223 days (19.78 yr)  
   first obs. used      1994-10-26  
   last obs. used      2014-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58624  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:34:07  

Additional Information
 Earth MOID = 1.66352 AU 
 T_jup = 3.228 
[ 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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