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128242 (2003 SF171)
Classification: Main-belt Asteroid          SPK-ID: 2128242
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03924313982373544 4.662e-08  
a 2.731918791758574 1.7724e-08 au
q 2.624709720626502 1.2835e-07 au
i 1.082750187114203 4.3657e-06 deg
node 261.9535898751167 0.00026638 deg
peri 340.3292683267724 0.00027358 deg
M 352.9959002252292 6.0998e-05 deg
tp 2459032.588537847366
(2020-Jul-02.08853785)
0.00027936 TDB
period 1649.301694225209
4.52
1.605e-05
4.394e-08
d
yr
n .2182741952309198 2.1241e-09 deg/d
Q 2.839127862890646 1.8419e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      9439 days (25.84 yr)  
   first obs. used      1994-09-11  
   last obs. used      2020-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52479  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:58:32  

Additional Information
 Earth MOID = 1.61157 au 
 Jupiter MOID = 2.14771 au 
 T_jup = 3.352 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.80   n/a E2021B55  

128242 (2003 SF171)          Discovered 2003-Sep-22 by Tichy, M. at Klet
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 2003 SF171 = 2004 XA43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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