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JPL Small-Body Database Browser
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266722 (2009 RL12)
Classification: Main-belt Asteroid          SPK-ID: 2266722
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1673370106840425 6.7275e-08  
a 3.085977072602727 5.2701e-08 au
q 2.569578894233894 2.133e-07 au
i 5.883338386136421 8.3664e-06 deg
node 181.6858502824979 5.5127e-05 deg
peri 190.9392037148382 5.8464e-05 deg
M 276.9533760103702 2.348e-05 deg
tp 2459057.279864145031
(2020-Jul-26.77986414)
0.00013563 TDB
period 1980.101576588411
5.42
5.0723e-05
1.389e-07
d
yr
n .1818088547862566 4.6573e-09 deg/d
Q 3.60237525097156 6.152e-08 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      6245 days (17.10 yr)  
   first obs. used      2001-04-13  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56409  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 16:59:53  

Additional Information
 Earth MOID = 1.56929 au 
 Jupiter MOID = 1.85743 au 
 T_jup = 3.197 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456887.5 (2014-Aug-18.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1725264622657791 6.8655e-08  
q 2.548481438097509 2.1921e-07 au
tp 2457073.975334732469
(2015-Feb-20.47533473)
0.00010643 TDB
node 181.9310178331235 5.4771e-05 deg
peri 189.8813543564718 5.7806e-05 deg
i 5.903725158729841 8.4082e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      6245 days (17.10 yr)  
   first obs. used      2001-04-13  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56409  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 16:59:53  

Additional Information
 Jupiter MOID = 1.85743 au 
 T_jup = 3.197 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.713577411930736E-15 -1.477336525807101E-14 -3.35512001104115E-12 -1.853323351392203E-15 -5.668902111340936E-13 -1.786371484966397E-15
q -1.477336525807101E-14 4.805213652111181E-14 1.173874776728098E-11 6.177094127054544E-15 1.947566332787338E-12 7.28160326623749E-15
tp -3.35512001104115E-12 1.173874776728098E-11 1.132816134902766E-8 1.077516182838624E-11 1.998003686871125E-9 1.271773178795259E-12
node -1.853323351392203E-15 6.177094127054544E-15 1.077516182838624E-11 2.999910618716141E-9 -2.981691420675818E-9 -1.481911721898488E-10
peri -5.668902111340936E-13 1.947566332787338E-12 1.998003686871125E-9 -2.981691420675818E-9 3.341534731445647E-9 1.475680723644475E-10
i -1.786371484966397E-15 7.28160326623749E-15 1.271773178795259E-12 -1.481911721898488E-10 1.475680723644475E-10 7.069718642623631E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO413195  

266722 (2009 RL12)          Discovered 2009-Sep-12 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 RL12 = 2006 CP30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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