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447075 (2004 SH21)
Classification: Main-belt Asteroid          SPK-ID: 2447075
[ 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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4320429216436409 1.0716e-07  
a 3.154185736752466 3.4867e-08 au
q 1.791442115639231 3.4628e-07 au
i 19.68030318409675 9.5008e-06 deg
node 119.2880421660379 3.2197e-05 deg
peri 255.1804974137057 3.3086e-05 deg
M 299.7893721961337 1.0135e-05 deg
tp 2459342.715736966426
(2021-May-08.21573697)		 6.1612e-05 TDB
period 2046.111621842322
5.60		 3.3927e-05
9.289e-08		 d
yr
n .1759434803834677 2.9174e-09 deg/d
Q 4.516929357865702 4.9931e-08 au
   Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      5342 days (14.63 yr)  
   first obs. used      2004-09-21  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56256  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:15:55  

Additional Information
 Earth MOID = .899081 au 
 Jupiter MOID = 1.67634 au 
 T_jup = 2.972 
[ 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 16.1   n/a MPO472482  

447075 (2004 SH21)          Discovered 2004-Sep-21 by LINEAR at Socorro
Reference: Last Updated: 2015-10-28

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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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