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JPL Small-Body Database Browser
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300338 (2007 RJ31)
Classification: Main-belt Asteroid          SPK-ID: 2300338
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1510940101429317 4.9324e-08  
a 2.417125201029512 2.7878e-08 au
q 2.051912061388423 1.2629e-07 au
i 6.168643494053584 6.067e-06 deg
node 237.4653666241451 4.5641e-05 deg
peri 55.7264559148519 5.0624e-05 deg
M 73.07345072238995 2.6667e-05 deg
tp 2458321.885148927410
(2018-Jul-22.38514893)
9.8696e-05 TDB
period 1372.609961546536
3.76
2.3746e-05
6.501e-08
d
yr
n .2622740691713936 4.5373e-09 deg/d
Q 2.7823383406706 3.209e-08 au
  Orbit Determination Parameters
   # obs. used (total)      296  
   data-arc span      5998 days (16.42 yr)  
   first obs. used      2002-02-07  
   last obs. used      2018-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59128  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:36:11  

Additional Information
 Earth MOID = 1.04268 au 
 Jupiter MOID = 2.39322 au 
 T_jup = 3.492 
[ 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 16.3   n/a MPO450214  

300338 (2007 RJ31)          Discovered 2007-Sep-05 by CSS at Catalina
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

[ show close-approach data ]
Alternate Designations
 2007 RJ31 = 2003 ME11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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