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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2430232513052744 4.3982e-08  
a 3.007826118326047 1.9911e-08 au
q 2.276854435689528 1.362e-07 au
i 13.17003492653319 5.8674e-06 deg
node 290.9258417971816 1.8301e-05 deg
peri 127.4470864294794 2.1654e-05 deg
M 311.0640848151966 9.8289e-06 deg
tp 2459259.501768887287
(2021-Feb-14.00176889)
5.2644e-05 TDB
period 1905.362072974543
5.22
1.892e-05
5.18e-08
d
yr
n .1889404670672322 1.8761e-09 deg/d
Q 3.738797800962566 2.475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      7684 days (21.04 yr)  
   first obs. used      1999-07-22  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:03:04  

Additional Information
 Earth MOID = 1.31662 au 
 Jupiter MOID = 1.71623 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 14.0   n/a MPO449691  
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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