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100610 (1997 ST18)
Classification: Main-belt Asteroid          SPK-ID: 2100610
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08090095893802714 4.7475e-08  
a 2.766051263224671 1.4221e-08 au
q 2.542275063558053 1.2694e-07 au
i .6532407889685472 4.7968e-06 deg
node 22.29056195665149 0.00033404 deg
peri 209.4851824605261 0.00033545 deg
M 130.1059765649842 2.8532e-05 deg
tp 2458593.227646697367
(2019-Apr-19.72764670)		 0.0001335 TDB
period 1680.307492098601
4.60		 1.2959e-05
3.548e-08		 d
yr
n .2142465005321032 1.6523e-09 deg/d
Q 2.989827462891288 1.5372e-08 au
   Orbit Determination Parameters
   # obs. used (total)      507  
   data-arc span      8479 days (23.21 yr)  
   first obs. used      1997-09-28  
   last obs. used      2020-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57521  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:46  

Additional Information
 Earth MOID = 1.5301 au 
 Jupiter MOID = 1.99345 au 
 T_jup = 3.334 
[ 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 16.02   n/a E2021B55  

100610 (1997 ST18)          Discovered 1997-Sep-28 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1997 ST18 = 2000 EZ73 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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