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146495 (2001 SD25)
Classification: Main-belt Asteroid          SPK-ID: 2146495
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1063830151688519 4.9671e-08  
a 2.668804279270773 1.7391e-08 au
q 2.384888833146414 1.3525e-07 au
i 1.759574550728155 5.5263e-06 deg
node 359.4067499428812 0.00013906 deg
peri 358.421667060327 0.0001405 deg
M 109.4541832334934 2.125e-05 deg
tp 2458516.323865745995
(2019-Feb-01.82386575)
9.242e-05 TDB
period 1592.478269739663
4.36
1.5566e-05
4.262e-08
d
yr
n .2260627393420272 2.2097e-09 deg/d
Q 2.952719725395133 1.9241e-08 au
  Orbit Determination Parameters
   # obs. used (total)      391  
   data-arc span      6704 days (18.35 yr)  
   first obs. used      2001-08-27  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5747  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 19:24:37  

Additional Information
 Earth MOID = 1.3808 au 
 Jupiter MOID = 2.46935 au 
 T_jup = 3.373 
[ 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 16.3   n/a MPO453930  

146495 (2001 SD25)          Discovered 2001-Sep-16 by LINEAR at Socorro
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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