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JPL Small-Body Database Browser
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266686 (2009 OM20)
Classification: Main-belt Asteroid          SPK-ID: 2266686
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2737004288877696 8.1631e-08  
a 2.699349785711302 2.4218e-08 au
q 1.96053659164401 2.1736e-07 au
i 8.972387152379461 6.9344e-06 deg
node 310.733303457446 4.7374e-05 deg
peri 42.37623574354033 4.931e-05 deg
M 55.88362678721857 1.0992e-05 deg
tp 2458349.039799914201
(2018-Aug-18.53979991)
4.9223e-05 TDB
period 1619.896152688361
4.44
2.18e-05
5.969e-08
d
yr
n .2222364683085074 2.9908e-09 deg/d
Q 3.438162979778595 3.0847e-08 au
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      6754 days (18.49 yr)  
   first obs. used      2000-07-29  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50669  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:23:43  

Additional Information
 Earth MOID = .964156 au 
 Jupiter MOID = 2.04988 au 
 T_jup = 3.296 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457354.5 (2015-Nov-28.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2733459861840029 8.2605e-08  
q 1.963147828621035 2.203e-07 au
tp 2456723.550323724812
(2014-Mar-07.05032372)
5.255e-05 TDB
node 311.0715765228052 4.7039e-05 deg
peri 41.40095169137686 4.9077e-05 deg
i 9.007686510062019 6.9538e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      6754 days (18.49 yr)  
   first obs. used      2000-07-29  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50669  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:23:43  

Additional Information
 Jupiter MOID = 2.04988 au 
 T_jup = 3.296 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.823540187285155E-15 -1.81435636353858E-14 -3.159527192476204E-13 8.075960914047181E-14 -4.59971520591369E-13 -1.630002857868295E-14
q -1.81435636353858E-14 4.853324388756145E-14 5.638282734665687E-13 -2.074471329505506E-13 1.186291012016207E-12 4.564847779880858E-14
tp -3.159527192476204E-13 5.638282734665687E-13 2.761459076537423E-9 -5.014592439710942E-11 7.545515336141007E-10 -7.380149657729052E-12
node 8.075960914047181E-14 -2.074471329505506E-13 -5.014592439710942E-11 2.212705208943426E-9 -2.198527520453323E-9 3.607270997510531E-11
peri -4.59971520591369E-13 1.186291012016207E-12 7.545515336141007E-10 -2.198527520453323E-9 2.408542438845137E-9 -3.690958642639472E-11
i -1.630002857868295E-14 4.564847779880858E-14 -7.380149657729052E-12 3.607270997510531E-11 -3.690958642639472E-11 4.835556382666134E-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 16.7   n/a MPO454982  

266686 (2009 OM20)          Discovered 2009-Jul-29 by La Sagra at La Sagra
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 OM20 = 2000 OG55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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