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

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02819903802121643 4.6936e-08  
a 3.00384903958576 1.6879e-08 au
q 2.919143386308487 1.4126e-07 au
i 10.3301878978722 5.1172e-06 deg
node 170.7711194078812 2.2842e-05 deg
peri 28.09384173769685 7.4241e-05 deg
M 50.91576223679758 7.0293e-05 deg
tp 2458331.553850687856
(2018-Aug-01.05385069)
0.0003715 TDB
period 1901.584293329071
5.21
1.6028e-05
4.388e-08
d
yr
n .1893158253688319 1.5957e-09 deg/d
Q 3.088554692863034 1.7355e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1357  
   data-arc span      10045 days (27.50 yr)  
   first obs. used      1992-02-27  
   last obs. used      2019-08-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50601  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:24:40  

Additional Information
 Earth MOID = 1.92321 au 
 Jupiter MOID = 1.87371 au 
 T_jup = 3.227 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5   n/a MPO350943  
diameter diameter 6.823 km 0.372 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.115   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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