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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1091004846320221 3.073e-08  
a 2.288222114183919 6.3974e-09 au
q 2.038575972580743 7.1013e-08 au
i 5.964680492717513 4.0688e-06 deg
node 246.5291214083801 3.4051e-05 deg
peri 219.792900592494 4.1151e-05 deg
M 329.0955407916651 2.1191e-05 deg
tp 2459309.033633384622
(2021-Apr-04.53363338)
7.4354e-05 TDB
period 1264.287064694084
3.46
5.302e-06
1.452e-08
d
yr
n .2847454585696549 1.1941e-09 deg/d
Q 2.537868255787095 7.0954e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1384  
   data-arc span      24211 days (66.29 yr)  
   first obs. used      1954-10-06  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50606  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:23:47  

Additional Information
 Earth MOID = 1.05923 au 
 Jupiter MOID = 2.58908 au 
 T_jup = 3.585 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457199.5 (2015-Jun-26.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1085703415508814 3.062e-08  
q 2.039733945879943 7.0674e-08 au
tp 2456778.063202008492
(2014-Apr-30.56320201)
7.7282e-05 TDB
node 246.5582292839912 3.4043e-05 deg
peri 219.2437290016537 4.1269e-05 deg
i 5.964742966893434 4.0708e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1384  
   data-arc span      24211 days (66.29 yr)  
   first obs. used      1954-10-06  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50606  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:23:47  

Additional Information
 Jupiter MOID = 2.58908 au 
 T_jup = 3.585 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.375883160156243E-16 -2.157045812737667E-15 -1.564068931965182E-13 1.511002363455644E-15 -2.284196533133075E-14 -1.196364675421948E-15
q -2.157045812737667E-15 4.994848472469104E-15 2.424842543572347E-13 -4.414863795795521E-15 2.03612059649639E-14 2.913501693988468E-15
tp -1.564068931965182E-13 2.424842543572347E-13 5.972501144183563E-9 1.506896462186685E-11 1.812325996773932E-9 -5.630085693224846E-13
node 1.511002363455644E-15 -4.414863795795521E-15 1.506896462186685E-11 1.158933646499045E-9 -1.147388430891626E-9 -3.73234766312555E-11
peri -2.284196533133075E-14 2.03612059649639E-14 1.812325996773932E-9 -1.147388430891626E-9 1.703148853479265E-9 3.693308944961023E-11
i -1.196364675421948E-15 2.913501693988468E-15 -5.630085693224846E-13 -3.73234766312555E-11 3.693308944961023E-11 1.657112189219289E-11

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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