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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1218385250704025 5.9622e-08  
a 3.041908121061671 2.8664e-08 AU
q 2.671286522191838 1.7568e-07 AU
i .8931465694494903 5.2611e-06 deg
node 91.09630866935338 0.00039455 deg
peri 133.177439472518 0.0003951 deg
M 57.35913849322978 2.3976e-05 deg
tp 2456491.742380139143
(2013-Jul-18.24238014)
0.00012917 JED
period 1937.838434638065
5.31
2.739e-05
7.499e-08
d
yr
n .1857740013641737 2.6258e-09 deg/d
Q 3.412529719931504 3.2156e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      7190 days (19.69 yr)  
   first obs. used      1994-10-26  
   last obs. used      2014-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59531  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:44:23  

Additional Information
 Earth MOID = 1.66259 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 14.2 mag n/a MPO267783  

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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