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JPL Small-Body Database Browser
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305861 (2009 EL24)
Classification: Main-belt Asteroid          SPK-ID: 2305861
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02094400852529726 5.2142e-08  
a 2.786419828332833 3.6092e-08 au
q 2.728061027693173 1.5644e-07 au
i 5.084842419394096 5.8026e-06 deg
node 46.74901494215793 5.8596e-05 deg
peri 209.5236559292839 0.0001516 deg
M 342.2875987874536 0.0001371 deg
tp 2458684.087857769636
(2019-Jul-19.58785777)
0.00064641 TDB
period 1698.901715017269
4.65
3.3008e-05
9.037e-08
d
yr
n .2119016049120539 4.1171e-09 deg/d
Q 2.844778628972493 3.6848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      6110 days (16.73 yr)  
   first obs. used      2002-11-05  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61462  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:05  

Additional Information
 Earth MOID = 1.71445 au 
 Jupiter MOID = 2.13889 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457470.5 (2016-Mar-23.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01986292654563548 5.2161e-08  
q 2.730112399217268 1.5645e-07 au
tp 2456994.624736713432
(2014-Dec-03.12473671)
0.00069503 TDB
node 46.74761396018239 5.8585e-05 deg
peri 211.2730948279755 0.00015882 deg
i 5.086150232722978 5.8029e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      6110 days (16.73 yr)  
   first obs. used      2002-11-05  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61462  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:05  

Additional Information
 Jupiter MOID = 2.13889 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.72076729616928E-15 -7.956633603580548E-15 -4.765753405204631E-13 2.238412975199731E-14 -1.395119930583005E-13 -1.546228011542051E-15
q -7.956633603580548E-15 2.447564137584847E-14 -8.222797926382536E-12 -6.89544584145623E-14 -1.576175082419183E-12 6.202309751117188E-15
tp -4.765753405204631E-13 -8.222797926382536E-12 4.830725573364357E-7 -1.699299536599217E-11 1.026211033538532E-7 -1.041590435480121E-11
node 2.238412975199731E-14 -6.89544584145623E-14 -1.699299536599217E-11 3.432211437934321E-9 -3.422098645547491E-9 1.465467349129037E-11
peri -1.395119930583005E-13 -1.576175082419183E-12 1.026211033538532E-7 -3.422098645547491E-9 2.522343201874578E-8 -1.671868114710018E-11
i -1.546228011542051E-15 6.202309751117188E-15 -1.041590435480121E-11 1.465467349129037E-11 -1.671868114710018E-11 3.367396405832593E-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 16.3   n/a MPO437358  

305861 (2009 EL24)          Discovered 2009-Mar-02 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 EL24 = 2002 VB138 = 2007 XV22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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