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305217 (2007 WK58)
Classification: Main-belt Asteroid          SPK-ID: 2305217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .212169516993677 3.8972e-08  
a 2.555198706128066 1.9754e-08 au
q 2.013063430826005 1.0241e-07 au
i 6.124704562825888 4.1668e-06 deg
node 130.7742726884494 0.00010359 deg
peri 9.84523095597153 0.00010919 deg
M 236.2518813943776 3.6362e-05 deg
tp 2459113.327787485344
(2020-Sep-20.82778749)
0.00015418 TDB
period 1491.8853359144
4.08
1.73e-05
4.736e-08
d
yr
n .2413054082198283 2.7983e-09 deg/d
Q 3.097333981430126 2.3945e-08 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      10155 days (27.80 yr)  
   first obs. used      1992-02-05  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55654  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:13:31  

Additional Information
 Earth MOID = 1.027 au 
 Jupiter MOID = 1.93205 au 
 T_jup = 3.398 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457775.5 (2017-Jan-22.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2121520693677101 3.907e-08  
q 2.013958361108856 1.0264e-07 au
tp 2457622.297423349473
(2016-Aug-21.79742335)
0.00014449 TDB
node 130.8011080946478 0.00010358 deg
peri 10.04174251371885 0.00010916 deg
i 6.124369106137105 4.1657e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      10155 days (27.80 yr)  
   first obs. used      1992-02-05  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55654  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:13:31  

Additional Information
 Jupiter MOID = 1.93205 au 
 T_jup = 3.398 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.526470925089494E-15 -3.965562177104683E-15 -2.741453550299876E-13 -5.250564726132408E-15 1.533007324023401E-14 1.556026928615589E-16
q -3.965562177104683E-15 1.053597788466388E-14 1.802911976213976E-12 7.412151619890131E-15 2.314997027770016E-13 1.756544663039028E-15
tp -2.741453550299876E-13 1.802911976213976E-12 2.087766185281812E-8 -1.33586947309302E-10 5.187450592388612E-9 3.214924768093284E-11
node -5.250564726132408E-15 7.412151619890131E-15 -1.33586947309302E-10 1.072928004342742E-8 -1.070141305184443E-8 -6.94691329362782E-11
peri 1.533007324023401E-14 2.314997027770016E-13 5.187450592388612E-9 -1.070141305184443E-8 1.191616521245589E-8 7.693995724114135E-11
i 1.556026928615589E-16 1.756544663039028E-15 3.214924768093284E-11 -6.94691329362782E-11 7.693995724114135E-11 1.735297053136437E-11

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 17.1   n/a MPO455249  

305217 (2007 WK58)          Discovered 2007-Nov-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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