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66120 (1998 SF74)
Classification: Main-belt Asteroid          SPK-ID: 2066120
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 .2054253934004477 4.3248e-08  
a 2.39579299056373 1.0491e-08 au
q 1.903636272971141 1.0312e-07 au
i 3.081500463255628 4.0605e-06 deg
node 133.6878401867427 8.964e-05 deg
peri 305.5667907398329 9.0196e-05 deg
M 261.8810243289298 1.057e-05 deg
tp 2459369.666995229109
(2021-Jun-04.16699523)
4.093e-05 TDB
period 1354.479267374416
3.71
8.8967e-06
2.436e-08
d
yr
n .2657847991264129 1.7458e-09 deg/d
Q 2.88794970815632 1.2646e-08 au
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      10054 days (27.53 yr)  
   first obs. used      1992-02-09  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56183  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:34:18  

Additional Information
 Earth MOID = .921248 au 
 Jupiter MOID = 2.36612 au 
 T_jup = 3.498 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456714.5 (2014-Feb-26.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2064530796771835 4.3484e-08  
q 1.901135049524826 1.04e-07 au
tp 2456658.870697937541
(2014-Jan-01.37069794)
3.4618e-05 TDB
node 133.8074049421202 8.9937e-05 deg
peri 305.0548117892446 9.0473e-05 deg
i 3.076618146174241 4.0545e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      10054 days (27.53 yr)  
   first obs. used      1992-02-09  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56183  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:34:18  

Additional Information
 Jupiter MOID = 2.36612 au 
 T_jup = 3.498 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.890854444791444E-15 -4.508632671161622E-15 -2.208046071967441E-13 -8.674433679390967E-15 -8.694288731080622E-14 -2.769505411672749E-15
q -4.508632671161622E-15 1.081663538711283E-14 5.626805637021452E-13 2.028557584292043E-14 2.166268700859431E-13 6.647264778444615E-15
tp -2.208046071967441E-13 5.626805637021452E-13 1.198426325581571E-9 2.63279486976241E-12 3.646345236020818E-10 2.627911489335963E-13
node -8.674433679390967E-15 2.028557584292043E-14 2.63279486976241E-12 8.08859561103912E-9 -8.075532999675618E-9 -6.355487731883851E-11
peri -8.694288731080622E-14 2.166268700859431E-13 3.646345236020818E-10 -8.075532999675618E-9 8.185358740491436E-9 6.360590656621926E-11
i -2.769505411672749E-15 6.647264778444615E-15 2.627911489335963E-13 -6.355487731883851E-11 6.360590656621926E-11 1.643937320180435E-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 15.9   n/a MPO324881  

66120 (1998 SF74)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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