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JPL Small-Body Database Browser
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393665 (2004 RF55)
Classification: Main-belt Asteroid          SPK-ID: 2393665
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09702710987686806 5.0785e-08  
a 2.331844855774943 1.8492e-08 au
q 2.105592688737858 1.185e-07 au
i 4.969127195956673 5.9953e-06 deg
node 230.3185776031184 5.967e-05 deg
peri 40.09144445453583 6.7138e-05 deg
M 215.4557083879288 3.0112e-05 deg
tp 2459522.711401355191
(2021-Nov-04.21140135)
0.0001101 TDB
period 1300.61244474748
3.56
1.5471e-05
4.236e-08
d
yr
n .2767926767530629 3.2925e-09 deg/d
Q 2.558097022812027 2.0286e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      5615 days (15.37 yr)  
   first obs. used      2004-09-08  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58044  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:51:45  

Additional Information
 Earth MOID = 1.09245 au 
 Jupiter MOID = 2.50467 au 
 T_jup = 3.559 
[ 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 17.4   n/a MPO455791  

393665 (2004 RF55)          Discovered 2004-Sep-08 by LINEAR at Socorro
Reference: Last Updated: 2014-05-15

[ show close-approach data ]
Alternate Designations
 2004 RF55 = 2008 US131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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