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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02652815575021869 6.9093e-08  
a 3.000699437467987 2.5905e-08 au
q 2.921096415431242 2.0492e-07 au
i 10.33883033762262 6.9381e-06 deg
node 170.8434736392559 2.767e-05 deg
peri 27.50131017211466 9.4687e-05 deg
M 221.8612524373536 9.2028e-05 deg
tp 2458329.026217813202
(2018-Jul-29.52621781)
0.0004867 JED
period 1898.594297691982
5.20
2.4585e-05
6.731e-08
d
yr
n .1896139688387522 2.4554e-09 deg/d
Q 3.080302459504731 2.6592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      8711 days (23.85 yr)  
   first obs. used      1992-02-27  
   last obs. used      2016-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54831  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:16:33  

Additional Information
 Earth MOID = 1.92421 au 
 Jupiter MOID = 1.88291 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 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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