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20583 Richthammer (1999 RK158)
Classification: Main-belt Asteroid          SPK-ID: 2020583
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06242506207082303 3.1773e-08  
a 2.874613758288317 1.6386e-08 au
q 2.695165815997527 8.9139e-08 au
i 3.12377586467373 3.4832e-06 deg
node 111.8893173791549 0.00010188 deg
peri 163.0953685011229 0.00011344 deg
M 152.761170178012 5.0381e-05 deg
tp 2458245.097961701433
(2018-May-06.59796170)
0.0002493 TDB
period 1780.195408758573
4.87
1.5221e-05
4.167e-08
d
yr
n .2022249907110184 1.7291e-09 deg/d
Q 3.054061700579108 1.7409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1020  
   data-arc span      10957 days (30.00 yr)  
   first obs. used      1990-11-17  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56738  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:14:11  

Additional Information
 Earth MOID = 1.67898 au 
 Jupiter MOID = 2.00855 au 
 T_jup = 3.292 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO452461  

20583 Richthammer           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
James Richthammer mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. He teaches at the Aquinas Academy of Pittsburgh, Gibsonia, Pennsylvania.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RK158 = 1997 ED35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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