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46608 (1993 RA2)
Classification: Main-belt Asteroid          SPK-ID: 2046608
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3232315793124129 3.3058e-08  
a 2.65376772318529 7.6407e-09 au
q 1.795986190891802 8.6975e-08 au
i 4.428966940967612 3.9039e-06 deg
node 166.1556936547213 4.845e-05 deg
peri 167.6782979041401 4.8798e-05 deg
M 77.39257948053773 6.3632e-06 deg
tp 2458661.039216407519
(2019-Jun-26.53921641)
2.7504e-05 TDB
period 1579.038751693564
4.32
6.8195e-06
1.867e-08
d
yr
n .227986805019123 9.8462e-10 deg/d
Q 3.511549255478777 1.011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1451  
   data-arc span      10574 days (28.95 yr)  
   first obs. used      1991-02-15  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:31:21  

Additional Information
 Earth MOID = .786353 au 
 Jupiter MOID = 1.88652 au 
 T_jup = 3.308 
[ 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 14.6   n/a MPO359050  

46608 (1993 RA2)          Discovered 1993-Sep-12 by Endate, K., Watanabe, K. at Kitami
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 RA2 = 2000 EJ186 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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