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100338 (1995 ST39)
Classification: Main-belt Asteroid          SPK-ID: 2100338
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08259771903121318 4.0574e-08  
a 2.918928256480204 1.9004e-08 au
q 2.677831440479183 1.2576e-07 au
i 10.63352042560787 1.3365e-05 deg
node 352.2038316854737 1.9778e-05 deg
peri 94.67608508854156 9.3521e-05 deg
M 289.3649357334173 9.2576e-05 deg
tp 2459557.897410735785
(2021-Dec-09.39741074)
0.00046827 TDB
period 1821.518380436338
4.99
1.7788e-05
4.87e-08
d
yr
n .1976373139390245 1.9301e-09 deg/d
Q 3.160025072481225 2.0573e-08 au
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      9229 days (25.27 yr)  
   first obs. used      1995-09-20  
   last obs. used      2020-12-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59014  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:01  

Additional Information
 Earth MOID = 1.72023 au 
 Jupiter MOID = 2.01232 au 
 T_jup = 3.250 
[ 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 15.27   n/a E2021B55  

100338 (1995 ST39)          Discovered 1995-Sep-25 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1995 ST39 = 1998 FG145 = 2001 XW39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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