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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1477550573737615 2.6642e-08  
a 2.261260655695995 8.5921e-09 au
q 1.927147957776604 6.3145e-08 au
i 1.441211314971024 3.7698e-06 deg
node 318.3378619750172 0.00012425 deg
peri 111.9236633758954 0.00012512 deg
M 310.7322634340522 1.4229e-05 deg
tp 2459370.474775516171
(2021-Jun-04.97477552)
4.936e-05 TDB
period 1242.00792345948
3.40
7.0789e-06
1.938e-08
d
yr
n .2898532233170129 1.652e-09 deg/d
Q 2.595373353615386 9.8616e-09 au
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      9907 days (27.12 yr)  
   first obs. used      1993-09-15  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53267  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:07:52  

Additional Information
 Earth MOID = .941559 au 
 Jupiter MOID = 2.66288 au 
 T_jup = 3.605 
[ 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 16.68   n/a E2021B55  
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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