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JPL Small-Body Database Browser
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173799 (2001 SF202)
Classification: Main-belt Asteroid          SPK-ID: 2173799
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08196268456728716 6.2539e-08  
a 2.834187008659482 2.7379e-08 au
q 2.601889432864022 1.8841e-07 au
i 1.56816369218601 6.114e-06 deg
node .3147850349871784 0.00023111 deg
peri 8.866042196858094 0.00023489 deg
M 322.1067984048586 4.5623e-05 deg
tp 2459183.942508657124
(2020-Nov-30.44250866)
0.00022248 TDB
period 1742.774438067854
4.77
2.5253e-05
6.914e-08
d
yr
n .206567179398797 2.9932e-09 deg/d
Q 3.066484584454943 2.9623e-08 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      7459 days (20.42 yr)  
   first obs. used      1999-03-19  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58992  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:46:16  

Additional Information
 Earth MOID = 1.60093 au 
 Jupiter MOID = 2.35313 au 
 T_jup = 3.306 
[ 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 15.9   n/a MPO436863  

173799 (2001 SF202)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2019-Sep-18 08:34 00:01 Ceres 0.0447678637077328 0.0447604547712443 0.0447752727112867 3.98681123397962 3.98680886697149 2458744.857273990 1.17266087309567 376.161254531725 64.5331035559067 13.4287830621211 29425.7027373003 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 03:46:18 2019-Sep-24 03:46

Alternate Designations
 2001 SF202 = 1999 FT13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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