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JPL Small-Body Database Browser
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423216 (2004 RU154)
Classification: Main-belt Asteroid          SPK-ID: 2423216
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .2365449616608468 1.0077e-07  
a 2.767182289926856 2.6851e-08 au
q 2.112619261247533 2.7451e-07 au
i 6.502258307246611 7.3489e-06 deg
node 311.9268363301854 8.1088e-05 deg
peri 73.00842742114902 8.4592e-05 deg
M 126.1351990104872 1.6766e-05 deg
tp 2458411.400197521285
(2018-Oct-19.90019752)
8.0276e-05 TDB
period 1681.338203420165
4.60
2.4472e-05
6.7e-08
d
yr
n .2141151609281766 3.1165e-09 deg/d
Q 3.421745318606178 3.3203e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      5250 days (14.37 yr)  
   first obs. used      2004-09-10  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59958  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:50:16  

Additional Information
 Earth MOID = 1.12724 au 
 Jupiter MOID = 2.11089 au 
 T_jup = 3.288 
[ 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 16.9   n/a MPO460617  
diameter diameter 2.117 km 0.643 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

423216 (2004 RU154)          Discovered 2004-Sep-10 by LINEAR at Socorro
Reference: Last Updated: 2015-02-04

Alternate Designations
 2004 RU154 = 2009 WY251 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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