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146558 (2001 SQ338)
Classification: Main-belt Asteroid          SPK-ID: 2146558
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 .08293539653643368 3.7165e-08  
a 2.740735934736721 2.1085e-08 au
q 2.513431913187678 1.0807e-07 au
i 4.358859814592016 5.1349e-06 deg
node 137.4714757608101 5.0005e-05 deg
peri 276.0875762309445 5.8595e-05 deg
M 2.968851086264276 3.1489e-05 deg
tp 2458986.832624337888
(2020-May-17.33262434)
0.00014494 TDB
period 1657.292701922452
4.54
1.9125e-05
5.236e-08
d
yr
n .2172217373445268 2.5067e-09 deg/d
Q 2.968039956285764 2.2834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      6607 days (18.09 yr)  
   first obs. used      2001-09-20  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59649  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 17:05:20  

Additional Information
 Earth MOID = 1.52922 au 
 Jupiter MOID = 2.3046 au 
 T_jup = 3.341 
[ 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 16.0   n/a MPO453931  

146558 (2001 SQ338)          Discovered 2001-Sep-20 by Powell at Powell
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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