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117166 (2004 RU6)
Classification: Main-belt Asteroid          SPK-ID: 2117166
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899664262611471 4.704e-08  
a 3.10566255740543 3.5165e-08 au
q 2.515690940202066 1.4673e-07 au
i 19.1175193774363 6.555e-06 deg
node 139.6720613589318 1.8755e-05 deg
peri 287.4178085132888 2.8145e-05 deg
M 258.5536948892803 2.1086e-05 deg
tp 2459563.830880660508
(2021-Dec-15.33088066)		 0.0001212 TDB
period 1999.07839734967
5.47		 3.3953e-05
9.296e-08		 d
yr
n .1800829824769651 3.0586e-09 deg/d
Q 3.695634174608794 4.1845e-08 au
   Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      7278 days (19.93 yr)  
   first obs. used      1999-09-14  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58969  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:16:39  

Additional Information
 Earth MOID = 1.60558 au 
 Jupiter MOID = 1.80378 au 
 T_jup = 3.109 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457186.5 (2015-Jun-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .192266890045836 4.7646e-08  
q 2.506550637136783 1.4948e-07 au
tp 2457556.393190209740
(2016-Jun-16.89319021)		 0.00010497 TDB
node 140.1770695265657 1.8795e-05 deg
peri 285.6530858948927 2.7592e-05 deg
i 19.05451533799232 6.5647e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      7278 days (19.93 yr)  
   first obs. used      1999-09-14  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58969  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:16:39  

Additional Information
 Jupiter MOID = 1.80378 au 
 T_jup = 3.109 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.270160285204412E-15 -7.001423895310726E-15 -7.829159565298865E-13 1.535991245846111E-14 -1.315775392924725E-13 1.855126448611494E-16
q -7.001423895310726E-15 2.234383470699562E-14 3.345874684466084E-12 -6.143936492802344E-14 5.552303302684344E-13 8.224542105332139E-16
tp -7.829159565298865E-13 3.345874684466084E-12 1.101907803280445E-8 -9.097555932652918E-11 2.166948004447277E-9 9.943842195938488E-12
node 1.535991245846111E-14 -6.143936492802344E-14 -9.097555932652918E-11 3.532487355698309E-10 -3.500459532850319E-10 2.863177393749097E-11
peri -1.315775392924725E-13 5.552303302684344E-13 2.166948004447277E-9 -3.500459532850319E-10 7.613308359974017E-10 -2.530427196298934E-11
i 1.855126448611494E-16 8.224542105332139E-16 9.943842195938488E-12 2.863177393749097E-11 -2.530427196298934E-11 4.309548665865995E-11

[ 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 14.6   n/a MPO449685  
diameter diameter 6.821 km 0.847 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.067   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

117166 (2004 RU6)          Discovered 2004-Sep-05 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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