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266720 (2009 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2266720
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .175815911890127 8.9918e-08  
a 2.403526686753314 2.5792e-08 au
q 1.980948450569524 2.105e-07 au
i 2.108041171551773 7.6461e-06 deg
node 317.4020247284769 0.00018505 deg
peri 15.02859040757815 0.00018655 deg
M 319.8472557077716 3.3266e-05 deg
tp 2459152.304477717186
(2020-Oct-29.80447772)
0.00012745 TDB
period 1361.043010670737
3.73
2.1908e-05
5.998e-08
d
yr
n .264503029792268 4.2576e-09 deg/d
Q 2.826104922937104 3.0327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      200  
   data-arc span      7514 days (20.57 yr)  
   first obs. used      1998-09-26  
   last obs. used      2019-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56951  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:49:19  

Additional Information
 Earth MOID = .970565 au 
 Jupiter MOID = 2.52866 au 
 T_jup = 3.502 
[ 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 17.1   n/a MPO433731  

266720 (2009 RJ)          Discovered 2009-Sep-09 by La Sagra at La Sagra
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 RJ = 1998 SX150 = 2000 BR48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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