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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1537307829970743 4.3732e-08  
a 2.692511877403323 1.5318e-08 au
q 2.278589918261188 1.2128e-07 au
i 4.718054952162976 4.7601e-06 deg
node 24.37321696519603 5.6874e-05 deg
peri 358.156868195509 5.9244e-05 deg
M 81.53475733927425 1.7348e-05 deg
tp 2458635.010293010825
(2019-May-31.51029301)
7.636e-05 TDB
period 1613.744847103685
4.42
1.3771e-05
3.77e-08
d
yr
n .2230835938197543 1.9037e-09 deg/d
Q 3.106433836545458 1.7673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      415  
   data-arc span      7595 days (20.79 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5964  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 19:25:21  

Additional Information
 Earth MOID = 1.2818 au 
 Jupiter MOID = 2.35153 au 
 T_jup = 3.349 
[ 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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