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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1089895571798036 3.1893e-08  
a 2.287889360972594 6.9556e-09 au
q 2.038533312643807 7.3033e-08 au
i 5.964961268869232 4.1562e-06 deg
node 246.5275181701084 4.0734e-05 deg
peri 219.8441590493785 4.6943e-05 deg
M 272.0831685617829 2.228e-05 deg
tp 2459309.188522307995
(2021-Apr-04.68852231)
7.8203e-05 TDB
period 1264.011295823058
3.46
5.7642e-06
1.578e-08
d
yr
n .2848075813797114 1.2988e-09 deg/d
Q 2.537245409301381 7.7137e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1218  
   data-arc span      24131 days (66.07 yr)  
   first obs. used      1954-10-06  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52907  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:24:22  

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