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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 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 
[ 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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