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146552 (2001 ST303)
Classification: Main-belt Asteroid          SPK-ID: 2146552
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1221185636601625 5.7803e-08  
a 2.426494380698268 1.7373e-08 au
q 2.13017437219794 1.3325e-07 au
i 1.366892972061521 4.4e-06 deg
node 311.802534971811 0.00024252 deg
peri 238.58603039 0.00024348 deg
M 154.6768193589585 2.1666e-05 deg
tp 2458407.315090685453
(2018-Oct-15.81509069)
8.1045e-05 TDB
period 1380.598387258401
3.78
1.4827e-05
4.059e-08
d
yr
n .2607564975610972 2.8004e-09 deg/d
Q 2.722814389198597 1.9495e-08 au
  Orbit Determination Parameters
   # obs. used (total)      444  
   data-arc span      8926 days (24.44 yr)  
   first obs. used      1993-08-16  
   last obs. used      2018-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55027  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 07:28:53  

Additional Information
 Earth MOID = 1.13072 au 
 Jupiter MOID = 2.23768 au 
 T_jup = 3.500 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456294.5 (2013-Jan-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1223204804900163 5.7871e-08  
q 2.129521920016999 1.3347e-07 au
tp 2455645.288814998756
(2011-Mar-24.78881500)
7.7807e-05 TDB
node 311.9197762918537 0.00024289 deg
peri 238.68577103516 0.00024385 deg
i 1.36605727182403 4.3963e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      444  
   data-arc span      8926 days (24.44 yr)  
   first obs. used      1993-08-16  
   last obs. used      2018-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55027  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 07:28:53  

Additional Information
 Jupiter MOID = 2.23768 au 
 T_jup = 3.500 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.349049342136601E-15 -7.686655186355105E-15 7.18247934506827E-13 -9.053523757795305E-15 1.889766207954597E-13 -1.916993698389722E-15
q -7.686655186355105E-15 1.781509712556238E-14 -1.850198486853437E-12 2.3470256400493E-14 -4.707856330465959E-13 4.474365271399608E-15
tp 7.18247934506827E-13 -1.850198486853437E-12 6.053875109828939E-9 -2.136670467520975E-11 1.713116894323269E-9 -1.682960386860219E-12
node -9.053523757795305E-15 2.3470256400493E-14 -2.136670467520975E-11 5.899338317582931E-8 -5.89824947353673E-8 -1.891495941170156E-11
peri 1.889766207954597E-13 -4.707856330465959E-13 1.713116894323269E-9 -5.89824947353673E-8 5.946048013520176E-8 1.844844002364001E-11
i -1.916993698389722E-15 4.474365271399608E-15 -1.682960386860219E-12 -1.891495941170156E-11 1.844844002364001E-11 1.932702174323454E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO432921  

146552 (2001 ST303)          Discovered 2001-Sep-20 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

Alternate Designations
 2001 ST303 = 1997 SG31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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