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JPL Small-Body Database Browser
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442617 (2012 RR20)
Classification: Main-belt Asteroid          SPK-ID: 2442617
[ 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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .104703574755926 6.6143e-08  
a 2.283069164209594 1.8944e-08 au
q 2.044023661301825 1.4601e-07 au
i 4.927010441251004 6.0581e-06 deg
node 282.5476673974701 9.9876e-05 deg
peri 27.51566517407296 0.00011148 deg
M 2.012082410736914 4.524e-05 deg
tp 2458593.457606415309
(2019-Apr-19.95760642)		 0.00015834 TDB
period 1260.018812827901
3.45		 1.5682e-05
4.293e-08		 d
yr
n .2857100198306091 3.556e-09 deg/d
Q 2.522114667117363 2.0927e-08 au
   Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      7263 days (19.89 yr)  
   first obs. used      2000-01-08  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49302  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 22:53:03  

Additional Information
 Earth MOID = 1.02994 au 
 Jupiter MOID = 2.67708 au 
 T_jup = 3.592 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a MPO450446  

442617 (2012 RR20)          Discovered 2009-Nov-17 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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