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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1742624677935401 6.219e-08  
a 2.313656094100701 1.9573e-08 au
q 1.91047267351715 1.4295e-07 au
i 2.514798758869436 9.4269e-06 deg
node 335.5177742563114 0.0001207 deg
peri 55.50936711747148 0.00012354 deg
M 325.9305870881583 2.9437e-05 deg
tp 2458722.149067332448
(2019-Aug-26.64906733)
0.00010566 TDB
period 1285.424681458467
3.52
1.6311e-05
4.466e-08
d
yr
n .280063083580702 3.5538e-09 deg/d
Q 2.716839514684252 2.2983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      8239 days (22.56 yr)  
   first obs. used      1994-09-05  
   last obs. used      2017-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65343  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 07:59:30  

Additional Information
 Earth MOID = .916579 au 
 Jupiter MOID = 2.72533 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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