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JPL Small-Body Database Browser
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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4328207724596978 1.0661e-07  
a 3.14979599502437 3.4444e-08 au
q 1.78649885936746 3.4322e-07 au
i 19.67353067196141 9.4984e-06 deg
node 119.3292200364165 3.2253e-05 deg
peri 255.3292252354271 3.3165e-05 deg
M 229.1411466239371 9.4069e-06 deg
tp 2459342.702950274946
(2021-May-08.20295028)
6.1475e-05 TDB
period 2041.841688243438
5.59
3.3492e-05
9.17e-08
d
yr
n .176311416341833 2.892e-09 deg/d
Q 4.51309313068128 4.9352e-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 = .893962 au 
 Jupiter MOID = 1.67806 au 
 T_jup = 2.973 
[ 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 16.3   n/a MPO361035  

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

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