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JPL Small-Body Database Browser
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390839 (2004 RU8)
Classification: Main-belt Asteroid          SPK-ID: 2390839
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2485731010115999 1.6522e-07  
a 2.429535184361988 1.7233e-08 au
q 1.82561808956834 4.1042e-07 au
i 10.25437743981434 1.3216e-05 deg
node 342.029735257782 3.2059e-05 deg
peri 341.4170188934402 3.6151e-05 deg
M 327.5050986574903 1.1851e-05 deg
tp 2458725.352124899463
(2019-Aug-29.85212490)
4.539e-05 TDB
period 1383.194381483087
3.79
1.4717e-05
4.029e-08
d
yr
n .260267106936916 2.7692e-09 deg/d
Q 3.033452279155636 2.1517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      5560 days (15.22 yr)  
   first obs. used      2004-08-10  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57935  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 12:59:46  

Additional Information
 Earth MOID = .816223 au 
 Jupiter MOID = 2.32355 au 
 T_jup = 3.444 
[ 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 16.9   n/a MPO494982  

390839 (2004 RU8)          Discovered 2004-Sep-06 by Goodricke-Pigott at Goodricke-Pigott
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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