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118407 (1999 RA201)
Classification: Main-belt Asteroid          SPK-ID: 2118407
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2430962399875594 4.1692e-08  
a 3.007810366335427 1.6228e-08 au
q 2.276622975683682 1.3195e-07 au
i 13.17006077812545 3.8233e-06 deg
node 290.9263071966098 1.806e-05 deg
peri 127.4756193274849 2.1224e-05 deg
M 348.8375463106882 7.7607e-06 deg
tp 2459259.578746739683
(2021-Feb-14.07874674)
4.1002e-05 TDB
period 1905.347105417398
5.22
1.542e-05
4.222e-08
d
yr
n .1889419512992809 1.5291e-09 deg/d
Q 3.738997756987173 2.0173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1367  
   data-arc span      7902 days (21.63 yr)  
   first obs. used      1999-07-22  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4496  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:57:08  

Additional Information
 Earth MOID = 1.3158 au 
 Jupiter MOID = 1.71637 au 
 T_jup = 3.166 
[ 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 14.09   n/a E2021B55  
diameter diameter 6.544 km 1.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.114   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

118407 (1999 RA201)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1999 RA201 = 2000 YY104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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