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146509 (2001 SY74)
Classification: Main-belt Asteroid          SPK-ID: 2146509
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1288549322624586 3.7416e-08  
a 2.764513608225209 1.8486e-08 au
q 2.408292394498705 1.0623e-07 au
i 12.25104344144053 7.2437e-06 deg
node 359.7536968384929 2.0889e-05 deg
peri 85.4370489154245 3.5708e-05 deg
M 328.8823877831176 2.9572e-05 deg
tp 2459145.621008769235
(2020-Oct-23.12100877)
0.0001385 TDB
period 1678.906555965776
4.60
1.684e-05
4.611e-08
d
yr
n .2144252750224763 2.1507e-09 deg/d
Q 3.120734821951713 2.0868e-08 au
  Orbit Determination Parameters
   # obs. used (total)      526  
   data-arc span      6709 days (18.37 yr)  
   first obs. used      2001-09-11  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60237  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:37:49  

Additional Information
 Earth MOID = 1.46139 au 
 Jupiter MOID = 2.15684 au 
 T_jup = 3.295 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457022.5 (2014-Dec-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1264998215787904 3.7119e-08  
q 2.416163240742665 1.0514e-07 au
tp 2457463.023005034183
(2016-Mar-15.52300503)
0.00013652 TDB
node 359.8596235120336 2.0839e-05 deg
peri 84.78144149198566 3.6361e-05 deg
i 12.26681357497826 7.2503e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      526  
   data-arc span      6709 days (18.37 yr)  
   first obs. used      2001-09-11  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60237  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:37:49  

Additional Information
 Jupiter MOID = 2.15684 au 
 T_jup = 3.295 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.377840508336702E-15 -3.855819452117556E-15 9.28964030127978E-13 1.321346048971933E-15 2.091167512905707E-13 -1.311207022495093E-15
q -3.855819452117556E-15 1.105457288210869E-14 -1.887510751003879E-12 -7.416844057755314E-15 -4.450053388565616E-13 5.224541845566354E-15
tp 9.28964030127978E-13 -1.887510751003879E-12 1.863882294027572E-8 -4.498965904883812E-11 4.082725601612843E-9 1.772681058196674E-11
node 1.321346048971933E-15 -7.416844057755314E-15 -4.498965904883812E-11 4.342500012845029E-10 -4.33434723718317E-10 -4.87393370649001E-11
peri 2.091167512905707E-13 -4.450053388565616E-13 4.082725601612843E-9 -4.33434723718317E-10 1.322086595714684E-9 5.12506243736008E-11
i -1.311207022495093E-15 5.224541845566354E-15 1.772681058196674E-11 -4.87393370649001E-11 5.12506243736008E-11 5.256756067124705E-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 15.3   n/a MPO493833  

146509 (2001 SY74)          Discovered 2001-Sep-19 by LONEOS at Anderson Mesa
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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