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JPL Small-Body Database Browser
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146539 (2001 SG251)
Classification: Main-belt Asteroid          SPK-ID: 2146539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1534615038832717 4.5424e-08  
a 2.691936777961769 1.5811e-08 au
q 2.278828111657067 1.2663e-07 au
i 4.718635910329247 4.8512e-06 deg
node 24.38218295376726 5.7504e-05 deg
peri 358.1565485971478 5.9937e-05 deg
M 352.3000569741369 1.758e-05 deg
tp 2458635.004895920608
(2019-May-31.50489592)
7.8921e-05 TDB
period 1613.227849828975
4.42
1.4213e-05
3.891e-08
d
yr
n .2231550862689143 1.966e-09 deg/d
Q 3.105045444266471 1.8237e-08 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      7522 days (20.59 yr)  
   first obs. used      1999-03-20  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60454  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 17:05:20  

Additional Information
 Earth MOID = 1.28129 au 
 Jupiter MOID = 2.35013 au 
 T_jup = 3.350 
[ 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 MPO453930  

146539 (2001 SG251)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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