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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1047035628196308 6.6576e-08  
a 2.283069168893412 1.9175e-08 au
q 2.044023692746619 1.4736e-07 au
i 4.927008875583977 6.3014e-06 deg
node 282.5476588866185 0.00010029 deg
peri 27.51567214514802 0.00011185 deg
M 2.012081489976224 4.5244e-05 deg
tp 2458593.457609616348
(2019-Apr-19.95760962)
0.00015835 TDB
period 1260.018816705377
3.45
1.5874e-05
4.346e-08
d
yr
n .2857100189513889 3.5994e-09 deg/d
Q 2.522114645040206 2.1182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   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      .48501  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:11:13  

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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