Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219363051418691 4.9775e-08  
a 3.041798763126662 2.8088e-08 AU
q 2.67089306096589 1.4086e-07 AU
i .893154757553391 5.0144e-06 deg
node 91.09774056922474 0.00035189 deg
peri 133.1485781748133 0.00035249 deg
M 94.53049992767984 2.3811e-05 deg
tp 2456491.680672969324
(2013-Jul-18.18067297)
0.00012843 JED
period 1937.733936361074
5.31
2.684e-05
7.348e-08
d
yr
n .1857840197999805 2.5733e-09 deg/d
Q 3.412704465287435 3.1513e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      821  
   data-arc span      7245 days (19.84 yr)  
   first obs. used      1994-10-26  
   last obs. used      2014-08-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58241  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:12:57  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-31 12:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin