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JPL Small-Body Database Browser
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66470 (1999 RP18)
Classification: Main-belt Asteroid          SPK-ID: 2066470
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2713528441882031 3.6262e-08  
a 2.678313314899194 1.4708e-08 au
q 1.951545379274163 9.8658e-08 au
i 12.90330645566723 5.0028e-06 deg
node 181.464074296517 2.2508e-05 deg
peri 124.9309266562305 2.4801e-05 deg
M 285.9351466755688 1.218e-05 deg
tp 2459329.882228669748
(2021-Apr-25.38222867)
5.587e-05 TDB
period 1600.996923624434
4.38
1.3188e-05
3.611e-08
d
yr
n .2248598949116093 1.8522e-09 deg/d
Q 3.405081250524225 1.8699e-08 au
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      7627 days (20.88 yr)  
   first obs. used      1998-03-20  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54816  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:27:06  

Additional Information
 Earth MOID = .969634 au 
 Jupiter MOID = 2.06354 au 
 T_jup = 3.289 
[ 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 15.2   n/a MPO436245  

66470 (1999 RP18)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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