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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129042272758498 3.7281e-08  
a 2.765159695741747 1.3812e-08 au
q 2.408337204063035 1.047e-07 au
i 12.25065375741744 4.3749e-06 deg
node 359.7484984475324 2.0398e-05 deg
peri 85.40240521975154 2.9665e-05 deg
M 11.79455671043258 1.9097e-05 deg
tp 2459145.475275582582
(2020-Oct-22.97527558)		 8.9182e-05 TDB
period 1679.495149889698
4.60		 1.2584e-05
3.445e-08		 d
yr
n .2143501277890818 1.6061e-09 deg/d
Q 3.121982187420459 1.5595e-08 au
   Orbit Determination Parameters
   # obs. used (total)      795  
   data-arc span      7068 days (19.35 yr)  
   first obs. used      2001-09-11  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51809  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 10:29:52  

Additional Information
 Earth MOID = 1.46108 au 
 Jupiter MOID = 2.15571 au 
 T_jup = 3.295 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457705.5 (2016-Nov-13.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1264002467112488 3.7046e-08  
q 2.416128172060807 1.0362e-07 au
tp 2457463.798899827343
(2016-Mar-16.29889983)		 9.6178e-05 TDB
node 359.8597541836076 2.0345e-05 deg
peri 84.98867991356754 3.0172e-05 deg
i 12.26766977249147 4.3793e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      795  
   data-arc span      7068 days (19.35 yr)  
   first obs. used      2001-09-11  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51809  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 10:29:52  

Additional Information
 Jupiter MOID = 2.15571 au 
 T_jup = 3.295 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.372416767965981E-15 -3.812448148886693E-15 1.153312283012932E-12 3.697145833426254E-15 2.517785868449756E-13 -7.94248755122217E-15
q -3.812448148886693E-15 1.073668708833117E-14 -3.574714339359246E-12 -9.956169573451812E-15 -7.801292280550963E-13 2.231905962397603E-14
tp 1.153312283012932E-12 -3.574714339359246E-12 9.250112488670866E-9 -2.760454766296622E-12 2.163789501861142E-9 -1.289236121697803E-11
node 3.697145833426254E-15 -9.956169573451812E-15 -2.760454766296622E-12 4.139176339376383E-10 -4.04964740818787E-10 -2.69113777196735E-11
peri 2.517785868449756E-13 -7.801292280550963E-13 2.163789501861142E-9 -4.04964740818787E-10 9.103541075311234E-10 2.339386673105198E-11
i -7.94248755122217E-15 2.231905962397603E-14 -1.289236121697803E-11 -2.69113777196735E-11 2.339386673105198E-11 1.917842191024971E-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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