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17697 Evanchen (1997 EQ41)
Classification: Main-belt Asteroid          SPK-ID: 2017697
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02638467375618402 6.9137e-08  
a 3.001223170307196 2.5908e-08 au
q 2.922036876089141 2.0511e-07 au
i 10.33883129683126 6.9613e-06 deg
node 170.8434841331164 2.773e-05 deg
peri 27.23390880760142 9.5504e-05 deg
M 184.2178018257286 9.2744e-05 deg
tp 2458327.795715523695
(2018-Jul-28.29571552)
0.00049091 JED
period 1899.09138158332
5.20
2.4591e-05
6.733e-08
d
yr
n .1895643377096783 2.4546e-09 deg/d
Q 3.080409464525252 2.6591e-08 au
  Orbit Determination Parameters
   # obs. used (total)      866  
   data-arc span      8686 days (23.78 yr)  
   first obs. used      1992-02-27  
   last obs. used      2015-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54903  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:37:35  

Additional Information
 Earth MOID = 1.92552 au 
 Jupiter MOID = 1.88258 au 
 T_jup = 3.227 
[ 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 13.5 mag n/a MPO350943  

17697 Evanchen           Discovered 1997 Mar. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Evan Matthew Chen (b. 1993) is a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors, for his bioengineering project. He attends the Wayzata High School, Plymouth, Minnesota.
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 EQ41 = 1998 KH52 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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