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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08086591661357566 4.7531e-08  
a 2.767076258483752 1.4674e-08 au
q 2.5433141005018 1.2746e-07 au
i .6531842289749462 4.841e-06 deg
node 22.29613162559279 0.00035216 deg
peri 209.7526525232026 0.00035359 deg
M 86.98123972058407 2.9265e-05 deg
tp 2458594.287567218548
(2019-Apr-20.78756722)		 0.00013707 TDB
period 1681.241567389572
4.60		 1.3374e-05
3.662e-08		 d
yr
n .2141274680467033 1.7034e-09 deg/d
Q 2.990838416465704 1.5861e-08 au
   Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      8394 days (22.98 yr)  
   first obs. used      1997-09-28  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56969  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:36:32  

Additional Information
 Earth MOID = 1.5324 au 
 Jupiter MOID = 1.99396 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 16.0   n/a MPO474881  

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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