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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


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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Orbital Elements at Epoch 2456876.5 (2014-Aug-07.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1087556079005223 3.1758e-08  
q 2.039872661513412 7.2762e-08 au
tp 2456778.482008610621
(2014-Apr-30.98200861)
7.9619e-05 TDB
node 246.5711043303116 4.0723e-05 deg
peri 219.3668452985622 4.7008e-05 deg
i 5.964573075323969 4.158e-06 deg
  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
 Jupiter MOID = 2.58996 au 
 T_jup = 3.585 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.008550261593918E-15 -2.302347503444435E-15 7.959482211582597E-15 -1.754658985663716E-15 2.332608106377773E-14 -1.095912590960755E-15
q -2.302347503444435E-15 5.294290423950316E-15 -8.876680757014508E-14 3.282777340554279E-15 -7.409817879601798E-14 2.586327823344481E-15
tp 7.959482211582597E-15 -8.876680757014508E-14 6.339185114482477E-9 3.405196224211552E-11 1.887795832341294E-9 -1.656149113414195E-12
node -1.754658985663716E-15 3.282777340554279E-15 3.405196224211552E-11 1.658371448401243E-9 -1.638304234203741E-9 -5.469961621778972E-11
peri 2.332608106377773E-14 -7.409817879601798E-14 1.887795832341294E-9 -1.638304234203741E-9 2.209762083821703E-9 5.388820057323769E-11
i -1.095912590960755E-15 2.586327823344481E-15 -1.656149113414195E-12 -5.469961621778972E-11 5.388820057323769E-11 1.72893550294966E-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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