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27239 O'Dorney (1999 RW211)
Classification: Main-belt Asteroid          SPK-ID: 2027239
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1089895543397421 3.1722e-08  
a 2.287889360079609 6.8808e-09 au
q 2.038533318345895 7.273e-08 au
i 5.964961316979753 4.1547e-06 deg
node 246.5275152092119 4.0112e-05 deg
peri 219.8441605087103 4.6377e-05 deg
M 272.0831705764434 2.2157e-05 deg
tp 2459309.188515053509
(2021-Apr-04.68851505)
7.7748e-05 TDB
period 1264.011295083025
3.46
5.7023e-06
1.561e-08
d
yr
n .284807581546456 1.2848e-09 deg/d
Q 2.537245401813323 7.6308e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1240  
   data-arc span      24148 days (66.11 yr)  
   first obs. used      1954-10-06  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 20:52:36  

Additional Information
 Earth MOID = 1.05936 au 
 Jupiter MOID = 2.58996 au 
 T_jup = 3.585 
[ 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 MPO337488  

27239 O'Dorney           Discovered 1999 Sept. 8 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Evan Michael O'Dorney (b. 1993) was a finalist in the 2010 Intel Science Talent Search, a science competition for high-school seniors, for his mathematical-sciences project. He attends the Venture School, San Ramon, California, 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: 20110319/MPCPages.arcLast Updated: 2011-03-23

Alternate Designations
 1999 RW211 = 1954 TH1 = 1999 UV61 = 2001 FS80 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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