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JPL Small-Body Database Browser
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434397 (2005 EK312)
Classification: Main-belt Asteroid          SPK-ID: 2434397
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01167172294557068 1.9183e-07  
a 2.880958993612952 6.4824e-08 au
q 2.847333238421951 5.8145e-07 au
i 5.906904611824145 1.8045e-05 deg
node 6.151664101756899 7.7236e-05 deg
peri 159.7317312872387 0.00047032 deg
M 323.67806053912 0.00046271 deg
tp 2458780.706549649945
(2019-Oct-24.20654965)
0.0022968 TDB
period 1786.092891428667
4.89
6.0283e-05
1.65e-07
d
yr
n .2015572659896999 6.8028e-09 deg/d
Q 2.914584748803953 6.5581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      6905 days (18.90 yr)  
   first obs. used      2000-02-06  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .71063  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:54:02  

Additional Information
 Earth MOID = 1.8514 au 
 Jupiter MOID = 2.04691 au 
 T_jup = 3.286 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457370.5 (2015-Dec-14.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01239899422988883 1.8965e-07  
q 2.844486945718605 5.757e-07 au
tp 2456981.561082890853
(2014-Nov-20.06108289)
0.0022475 TDB
node 6.168482909073616 7.7222e-05 deg
peri 157.1137257633883 0.00046308 deg
i 5.908097434496127 1.8047e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      6905 days (18.90 yr)  
   first obs. used      2000-02-06  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .71063  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:54:02  

Additional Information
 Jupiter MOID = 2.04691 au 
 T_jup = 3.286 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.596645898213906E-14 -1.086217807549147E-13 2.205235597912046E-10 -2.690277315560036E-14 4.533842839040691E-11 -4.947431253641636E-14
q -1.086217807549147E-13 3.314275106567215E-13 -6.18111074963106E-10 9.646591286238639E-14 -1.27131623304134E-10 1.555974722841482E-13
tp 2.205235597912046E-10 -6.18111074963106E-10 5.05116832800297E-6 -9.064946371899474E-11 1.02619163798875E-6 8.970401121812528E-11
node -2.690277315560036E-14 9.646591286238639E-14 -9.064946371899474E-11 5.963218310760822E-9 -5.947451852048765E-9 -8.522947245946911E-11
peri 4.533842839040691E-11 -1.27131623304134E-10 1.02619163798875E-6 -5.947451852048765E-9 2.144452522876945E-7 1.0202674511784E-10
i -4.947431253641636E-14 1.555974722841482E-13 8.970401121812528E-11 -8.522947245946911E-11 1.0202674511784E-10 3.256939384228035E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO342181  

434397 (2005 EK312)          Discovered 2005-Mar-10 by Buie, M. W. at Kitt Peak
Reference: Last Updated: 2015-06-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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