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146557 (2001 SR318)
Classification: Main-belt Asteroid          SPK-ID: 2146557
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1018298613871873 5.7037e-08  
a 2.576807258751976 1.6213e-08 au
q 2.314411332771764 1.5277e-07 au
i 4.314113915144416 5.5809e-06 deg
node 2.888838270033113 4.2979e-05 deg
peri 172.4548513044867 4.8763e-05 deg
M 13.14429047084489 1.9559e-05 deg
tp 2458945.335971172286
(2020-Apr-05.83597117)
8.22e-05 TDB
period 1510.849933058468
4.14
1.4259e-05
3.904e-08
d
yr
n .2382764774468626 2.2488e-09 deg/d
Q 2.839203184732188 1.7864e-08 au
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      8221 days (22.51 yr)  
   first obs. used      1997-10-23  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52496  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 23:55:39  

Additional Information
 Earth MOID = 1.31883 au 
 Jupiter MOID = 2.1231 au 
 T_jup = 3.415 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO417788  

146557 (2001 SR318)          Discovered 2001-Sep-21 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

Alternate Designations
 2001 SR318 = 1997 UG27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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