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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457017.5 (2014-Dec-26.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4348801719986279 1.0635e-07  
q 1.778032901544442 3.4203e-07 au
tp 2457303.587675487962
(2015-Oct-08.08767549)
4.4159e-05 TDB
node 119.4372619028849 3.2265e-05 deg
peri 255.2636795992477 3.3142e-05 deg
i 19.69322163560692 9.4975e-06 deg
  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
 Jupiter MOID = 1.67806 au 
 T_jup = 2.973 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.130943223444766E-14 -3.631979875519845E-14 6.176525634121813E-13 -2.767161555918222E-14 -2.46046172715659E-13 -1.252722524959532E-13
q -3.631979875519845E-14 1.169830522413746E-13 -1.781152063601165E-12 9.207210514971321E-14 7.859941601544415E-13 4.105698921749795E-13
tp 6.176525634121813E-13 -1.781152063601165E-12 1.949986379736195E-9 7.603515913713096E-12 4.467388488352286E-10 -5.245966467815472E-12
node -2.767161555918222E-14 9.207210514971321E-14 7.603515913713096E-12 1.0410168948171E-9 -9.774996014750972E-10 -6.488805034928717E-11
peri -2.46046172715659E-13 7.859941601544415E-13 4.467388488352286E-10 -9.774996014750972E-10 1.098424572636686E-9 6.133642839690358E-11
i -1.252722524959532E-13 4.105698921749795E-13 -5.245966467815472E-12 -6.488805034928717E-11 6.133642839690358E-11 9.020165463161493E-11

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

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