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JPL Small-Body Database Browser
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20201 (1997 EK6)
Classification: Main-belt Asteroid          SPK-ID: 2020201
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1681609086877986 4.1124e-08  
a 2.595561954925317 1.3261e-08 au
q 2.159089898029597 1.0839e-07 au
i 15.58925480964228 5.8122e-06 deg
node 85.3107503096644 1.5697e-05 deg
peri 277.0278578436599 2.4092e-05 deg
M 246.4485522595868 1.978e-05 deg
tp 2459082.265505743670
(2020-Aug-20.76550574)
8.5092e-05 TDB
period 1527.374467864181
4.18
1.1706e-05
3.205e-08
d
yr
n .2356985844495682 1.8064e-09 deg/d
Q 3.032034011821038 1.5492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1290  
   data-arc span      8203 days (22.46 yr)  
   first obs. used      1997-03-06  
   last obs. used      2019-08-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51398  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:29:23  

Additional Information
 Earth MOID = 1.22206 au 
 Jupiter MOID = 2.58488 au 
 T_jup = 3.346 
[ 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 14.1   n/a MPO474031  
diameter diameter 4.549 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20201 (1997 EK6)          Discovered 1997-Mar-06 by Klet at Klet
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 EK6 = 1998 HD126 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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