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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1288549325818764 3.7413e-08  
a 2.764513601627097 1.7129e-08 au
q 2.408292387867757 1.0599e-07 au
i 12.25104349142315 6.6989e-06 deg
node 359.753697055465 2.0683e-05 deg
peri 85.43703818264231 3.3688e-05 deg
M 328.8824002128035 2.646e-05 deg
tp 2459145.620950282243
(2020-Oct-23.12095028)
0.00012377 TDB
period 1678.906549955163
4.60
1.5604e-05
4.272e-08
d
yr
n .214425275790135 1.9929e-09 deg/d
Q 3.120734815386438 1.9336e-08 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      6987 days (19.13 yr)  
   first obs. used      2001-09-11  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58969  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:27:10  

Additional Information
 Earth MOID = 1.46139 au 
 Jupiter MOID = 2.15684 au 
 T_jup = 3.295 
[ show covariance matrix ]

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

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