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JPL Small-Body Database Browser
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193938 (2001 RU30)
Classification: Main-belt Asteroid          SPK-ID: 2193938
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1744727177997401 5.8605e-08  
a 2.314047902388276 1.6015e-08 au
q 1.910309675739806 1.3136e-07 au
i 2.51484268788819 7.0139e-06 deg
node 335.5103319826504 0.00011878 deg
peri 55.50442796177548 0.00012049 deg
M 77.9409957196691 1.8301e-05 deg
tp 2458722.131305172567
(2019-Aug-26.63130517)
6.5748e-05 TDB
period 1285.751217476253
3.52
1.3348e-05
3.654e-08
d
yr
n .279991957313973 2.9067e-09 deg/d
Q 2.717786129036746 1.8809e-08 au
  Orbit Determination Parameters
   # obs. used (total)      281  
   data-arc span      9272 days (25.39 yr)  
   first obs. used      1994-09-05  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6098  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:12:12  

Additional Information
 Earth MOID = .917094 au 
 Jupiter MOID = 2.72639 au 
 T_jup = 3.561 
[ 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 17.1   n/a MPO459867  
diameter diameter 2.470 km 0.469 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

193938 (2001 RU30)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 2001 RU30 = 1994 RQ21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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