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JPL Small-Body Database Browser
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20217 Kathyclemmer (1997 GK33)
Classification: Main-belt Asteroid          SPK-ID: 2020217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08159378059340454 4.4456e-08  
a 3.03758873765957 1.9549e-08 au
q 2.789740388665978 1.3684e-07 au
i 7.968857781054146 5.9787e-06 deg
node 199.067713539052 2.7363e-05 deg
peri 213.6896571162142 4.1233e-05 deg
M 274.7688588355772 3.1591e-05 deg
tp 2459458.312546261970
(2021-Aug-31.81254626)
0.00017065 TDB
period 1933.712424856109
5.29
1.8667e-05
5.111e-08
d
yr
n .1861703919220503 1.7972e-09 deg/d
Q 3.285437086653161 2.1144e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1474  
   data-arc span      9961 days (27.27 yr)  
   first obs. used      1992-04-27  
   last obs. used      2019-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50586  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:02:51  

Additional Information
 Earth MOID = 1.80397 au 
 Jupiter MOID = 2.08204 au 
 T_jup = 3.221 
[ 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 13.2   n/a MPO350962  
diameter diameter 7.290 km 0.234 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.210   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20217 Kathyclemmer           Discovered 1997 Apr. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Kathy Clemmer mentored a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors. She teaches at the El Segundo High School, El Segundo, California.
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 GK33 = 1999 RA17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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