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152274 (2005 SD231)
Classification: Main-belt Asteroid          SPK-ID: 2152274
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1973104780739388 4.0904e-08  
a 2.662498087385575 1.4934e-08 au
q 2.137159316892579 1.0994e-07 au
i 14.69219077769062 4.3657e-06 deg
node 166.5036666646923 1.9394e-05 deg
peri 281.6310094759452 2.2908e-05 deg
M 88.30282607518409 1.2066e-05 deg
tp 2458611.271631430797
(2019-May-07.77163143)
5.2095e-05 TDB
period 1586.837238545548
4.34
1.335e-05
3.655e-08
d
yr
n .2268663674227649 1.9087e-09 deg/d
Q 3.18783685787857 1.788e-08 au
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      8001 days (21.91 yr)  
   first obs. used      1998-03-03  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51964  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:17:39  

Additional Information
 Earth MOID = 1.20855 au 
 Jupiter MOID = 2.17242 au 
 T_jup = 3.311 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456876.5 (2014-Aug-07.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1966200071564429 4.0899e-08  
q 2.139409839579584 1.0983e-07 au
tp 2457025.853336626639
(2015-Jan-03.35333663)
5.0009e-05 TDB
node 166.5237960994824 1.9397e-05 deg
peri 282.0801677831494 2.2934e-05 deg
i 14.6883555721988 4.3639e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      8001 days (21.91 yr)  
   first obs. used      1998-03-03  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51964  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:17:39  

Additional Information
 Jupiter MOID = 2.17242 au 
 T_jup = 3.311 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.672730752203029E-15 -4.465121655833798E-15 -6.520195464345261E-13 -9.809536481294296E-15 -1.472448891116486E-13 -8.807480044480924E-15
q -4.465121655833798E-15 1.206263660001699E-14 1.754514142344255E-12 2.662645409678868E-14 3.883037671417533E-13 2.429481358460499E-14
tp -6.520195464345261E-13 1.754514142344255E-12 2.500857555128895E-9 1.746704108772987E-13 6.384125553242268E-10 5.86717634807288E-12
node -9.809536481294296E-15 2.662645409678868E-14 1.746704108772987E-13 3.762295866890968E-10 -3.639455286267299E-10 2.071292089933453E-11
peri -1.472448891116486E-13 3.883037671417533E-13 6.384125553242268E-10 -3.639455286267299E-10 5.259675203584129E-10 -1.87638287286508E-11
i -8.807480044480924E-15 2.429481358460499E-14 5.86717634807288E-12 2.071292089933453E-11 -1.87638287286508E-11 1.904385498565538E-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 15.1   n/a MPO314354  

152274 (2005 SD231)          Discovered 2005-Sep-30 by LINEAR at Socorro
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

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