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JPL Small-Body Database Browser
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109902 (2001 SH21)
Classification: Main-belt Asteroid          SPK-ID: 2109902
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0501446496675788 4.1894e-08  
a 2.553600845006372 1.1676e-08 au
q 2.425551425242694 1.0847e-07 au
i 4.604870324936438 4.7891e-06 deg
node 117.0053447432398 5.5372e-05 deg
peri 258.5634772439213 7.3157e-05 deg
M 109.5853122423937 4.7555e-05 deg
tp 2458146.790580709633
(2018-Jan-28.29058071)		 0.00019641 TDB
period 1490.486157335095
4.08		 1.0223e-05
2.799e-08		 d
yr
n .2415319311946242 1.6566e-09 deg/d
Q 2.68165026477005 1.2262e-08 au
   Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      10208 days (27.95 yr)  
   first obs. used      1991-02-22  
   last obs. used      2019-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59144  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:53:20  

Additional Information
 Earth MOID = 1.42991 au 
 Jupiter MOID = 2.53695 au 
 T_jup = 3.432 
[ 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 15.6   n/a MPO268016  

109902 (2001 SH21)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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