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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09266972203901766 5.2419e-08  
a 3.197301767052835 3.1524e-08 au
q 2.901008701025189 1.6485e-07 au
i 22.3090771536842 5.2874e-06 deg
node 156.4543438175574 1.3839e-05 deg
peri 256.3269401264469 3.142e-05 deg
M 215.8919593968475 3.0694e-05 deg
tp 2460036.410115775771
(2023-Apr-01.91011578)
0.00018326 TDB
period 2088.208544226743
5.72
3.0884e-05
8.456e-08
d
yr
n .1723965745640155 2.5497e-09 deg/d
Q 3.493594833080481 3.4446e-08 au
  Orbit Determination Parameters
   # obs. used (total)      563  
   data-arc span      8861 days (24.26 yr)  
   first obs. used      1996-03-12  
   last obs. used      2020-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59757  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:57:08  

Additional Information
 Earth MOID = 1.99336 au 
 Jupiter MOID = 1.89432 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 14.51   n/a E2021B55  
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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