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66631 (1999 RP209)
Classification: Main-belt Asteroid          SPK-ID: 2066631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1989774113167758 5.6717e-08  
a 2.646234648752185 1.3707e-08 au
q 2.119693728606717 1.5293e-07 au
i 12.67552707706003 5.1951e-06 deg
node 233.0386680166017 2.577e-05 deg
peri 113.6466572031139 2.9443e-05 deg
M 36.3732076566116 1.2727e-05 deg
tp 2459237.637989122463
(2021-Jan-23.13798912)
5.514e-05 TDB
period 1572.320056450056
4.30
1.2217e-05
3.345e-08
d
yr
n .2289610175251462 1.779e-09 deg/d
Q 3.172775568897651 1.6434e-08 au
  Orbit Determination Parameters
   # obs. used (total)      496  
   data-arc span      9015 days (24.68 yr)  
   first obs. used      1995-12-20  
   last obs. used      2020-08-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55354  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:32:52  

Additional Information
 Earth MOID = 1.15029 au 
 Jupiter MOID = 2.44464 au 
 T_jup = 3.330 
[ 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 15.62   n/a E2021B10  

66631 (1999 RP209)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RP209 = 1995 YM14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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