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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1667449636776482 6.1227e-08  
a 3.081896376075677 3.2058e-08 au
q 2.568005676788663 1.7738e-07 au
i 5.885623760779405 6.9498e-06 deg
node 181.6260450168263 4.2751e-05 deg
peri 191.3710246741457 4.5873e-05 deg
M 349.3806519088273 1.3846e-05 deg
tp 2459058.793593893406
(2020-Jul-28.29359389)
7.5822e-05 TDB
period 1976.175337831751
5.41
3.0834e-05
8.442e-08
d
yr
n .1821700701897181 2.8424e-09 deg/d
Q 3.595787075362691 3.7403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      7135 days (19.53 yr)  
   first obs. used      2001-04-13  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51026  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:49  

Additional Information
 Earth MOID = 1.56866 au 
 Jupiter MOID = 1.86728 au 
 T_jup = 3.198 
[ show covariance matrix ]

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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