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213848 (2003 ST54)
Classification: Main-belt Asteroid          SPK-ID: 2213848
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1055083662034581 4.2631e-08  
a 2.433287818266983 1.5583e-08 au
q 2.176555596058857 9.9082e-08 au
i 5.587197745640004 5.2602e-06 deg
node 300.2848146939975 4.1103e-05 deg
peri 127.9939879650545 4.8639e-05 deg
M 135.313680587495 2.6159e-05 deg
tp 2458679.391861154668
(2019-Jul-14.89186115)
9.8858e-05 TDB
period 1386.400319389853
3.80
1.3318e-05
3.646e-08
d
yr
n .259665260433894 2.4943e-09 deg/d
Q 2.69002004047511 1.7227e-08 au
  Orbit Determination Parameters
   # obs. used (total)      425  
   data-arc span      7030 days (19.25 yr)  
   first obs. used      2001-01-21  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5558  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:44:20  

Additional Information
 Earth MOID = 1.19558 au 
 Jupiter MOID = 2.54286 au 
 T_jup = 3.492 
[ 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 16.44   n/a E2021B55  

213848 (2003 ST54)          Discovered 2003-Sep-16 by LONEOS at Anderson Mesa
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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