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21677 Tylerlyon (1999 RO23)
Classification: Main-belt Asteroid          SPK-ID: 2021677
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1416254173528016 2.8689e-08  
a 2.519357209745859 1.0044e-08 au
q 2.162552193454812 7.3104e-08 au
i 3.622973517663237 6.8275e-06 deg
node 131.0406950501836 9.2516e-05 deg
peri 306.1182634924926 0.00010126 deg
M 49.08811943866857 3.9591e-05 deg
tp 2459001.337786733581
(2020-May-31.83778673)
0.00016053 TDB
period 1460.60589804203
4.00
8.7345e-06
2.391e-08
d
yr
n .246473056477854 1.4739e-09 deg/d
Q 2.876162226036906 1.1466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1061  
   data-arc span      12202 days (33.41 yr)  
   first obs. used      1987-08-23  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5071  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:53:57  

Additional Information
 Earth MOID = 1.1799 au 
 Jupiter MOID = 2.3597 au 
 T_jup = 3.440 
[ 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 15.1   n/a MPO400218  

21677 Tylerlyon           Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Tyler Glen Lyon (b. 1987) was awarded second place in the 2005 Intel International Science and Engineering Fair for his engineering team project. He attends the Copper Hills High School, West Jordan, Utah, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050822/MPCPages.arcLast Updated: 2005-08-26

Alternate Designations
 1999 RO23 = 1989 EW9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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