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JPL Small-Body Database Browser
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100131 (1993 RU5)
Classification: Main-belt Asteroid          SPK-ID: 2100131
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1477596022983235 3.3599e-08  
a 2.262212044708508 1.0282e-08 au
q 1.927948492667902 7.5602e-08 au
i 1.441087265310735 3.7921e-06 deg
node 318.3385074053936 0.00015578 deg
peri 111.7596221117328 0.00015671 deg
M 252.9436788467774 1.498e-05 deg
tp 2459370.079783755724
(2021-Jun-04.57978376)		 5.1819e-05 TDB
period 1242.791838154393
3.40		 8.4726e-06
2.32e-08		 d
yr
n .289670392858886 1.9748e-09 deg/d
Q 2.596475596749114 1.1801e-08 au
   Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      9419 days (25.79 yr)  
   first obs. used      1993-09-15  
   last obs. used      2019-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54753  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:01:10  

Additional Information
 Earth MOID = .942872 au 
 Jupiter MOID = 2.66242 au 
 T_jup = 3.604 
[ 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 16.6   n/a MPO436466  
diameter diameter 3.331 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100131 (1993 RU5)          Discovered 1993-Sep-15 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1993 RU5 = 2000 VB43 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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