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JPL Small-Body Database Browser
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193947 (2001 RA46)
Classification: Main-belt Asteroid          SPK-ID: 2193947
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .172176078564437 5.1312e-08  
a 2.319739404354296 1.2472e-08 au
q 1.920335770421171 1.188e-07 au
i 3.063841809397167 6.304e-06 deg
node 129.4795819248201 0.00010661 deg
peri 262.9915476744303 0.00010829 deg
M 326.4726411703807 2.0133e-05 deg
tp 2458720.686051718173
(2019-Aug-25.18605172)
7.259e-05 TDB
period 1290.497675000833
3.53
1.0407e-05
2.849e-08
d
yr
n .2789621453597486 2.2497e-09 deg/d
Q 2.719143038287422 1.4619e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      6667 days (18.25 yr)  
   first obs. used      2001-07-29  
   last obs. used      2019-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55875  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 21:48:50  

Additional Information
 Earth MOID = .92846 au 
 Jupiter MOID = 2.71232 au 
 T_jup = 3.557 
[ 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 16.8   n/a MPO454348  

193947 (2001 RA46)          Discovered 2001-Sep-15 by Ball, L. at Emerald Lane
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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