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193937 (2001 RT28)
Classification: Main-belt Asteroid          SPK-ID: 2193937
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1820614841619204 5.5804e-08  
a 2.279268367717407 1.0771e-08 au
q 1.864301385887458 1.2632e-07 au
i 2.473514669879912 5.2175e-06 deg
node 344.8038004854462 0.0001259 deg
peri 53.88316166152286 0.00012718 deg
M 118.8101828430414 1.54e-05 deg
tp 2458585.696143655355
(2019-Apr-12.19614366)
5.2734e-05 TDB
period 1256.873650984523
3.44
8.9094e-06
2.439e-08
d
yr
n .2864249717686484 2.0303e-09 deg/d
Q 2.694235349547356 1.2732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      6738 days (18.45 yr)  
   first obs. used      2001-08-21  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55273  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:12:12  

Additional Information
 Earth MOID = .873106 au 
 Jupiter MOID = 2.72514 au 
 T_jup = 3.583 
[ 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 17.7   n/a MPO454348  

193937 (2001 RT28)          Discovered 2001-Sep-07 by LINEAR at Socorro
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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