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118409 (1999 RB234)
Classification: Main-belt Asteroid          SPK-ID: 2118409
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09294045576882237 5.404e-08  
a 3.196298872091529 3.3107e-08 au
q 2.89923339814597 1.6853e-07 au
i 22.30874693260761 6.0489e-06 deg
node 156.4642707487573 1.4159e-05 deg
peri 256.4822683037172 3.4129e-05 deg
M 181.2186817588571 3.2184e-05 deg
tp 2460037.047321259907
(2023-Apr-02.54732126)
0.00019121 TDB
period 2087.226111344847
5.71
3.2429e-05
8.879e-08
d
yr
n .1724777196122962 2.6797e-09 deg/d
Q 3.493364346037088 3.6184e-08 au
  Orbit Determination Parameters
   # obs. used (total)      536  
   data-arc span      8814 days (24.13 yr)  
   first obs. used      1996-03-12  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60812  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:20:27  

Additional Information
 Earth MOID = 1.99321 au 
 Jupiter MOID = 1.89547 au 
 T_jup = 3.072 
[ 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 14.5   n/a MPO475039  
diameter diameter 7.221 km 0.307 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118409 (1999 RB234)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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