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305863 (2009 EO25)
Classification: Main-belt Asteroid          SPK-ID: 2305863
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02842008706403895 8.6503e-08  
a 2.696956253842937 3.27e-08 au
q 2.620308522300816 2.3012e-07 au
i 5.759708036290827 8.8413e-06 deg
node 13.49661461786341 5.8837e-05 deg
peri .8956570950954438 0.00013176 deg
M 349.8898564914894 0.0001142 deg
tp 2459045.932234713261
(2020-Jul-15.43223471)		 0.00051289 TDB
period 1617.742070921759
4.43		 2.9423e-05
8.056e-08		 d
yr
n .2225323841611405 4.0473e-09 deg/d
Q 2.773603985385058 3.363e-08 au
   Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      6633 days (18.16 yr)  
   first obs. used      2002-09-14  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57696  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:08:59  

Additional Information
 Earth MOID = 1.61997 au 
 Jupiter MOID = 2.33518 au 
 T_jup = 3.361 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457345.5 (2015-Nov-19.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03047224493050768 8.6583e-08  
q 2.61584177297308 2.3064e-07 au
tp 2457418.584863081724
(2016-Jan-31.08486308)		 0.0004906 TDB
node 13.60690339440409 5.8695e-05 deg
peri 358.9170657098099 0.00012529 deg
i 5.766831548312438 8.8501e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      6633 days (18.16 yr)  
   first obs. used      2002-09-14  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57696  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:08:59  

Additional Information
 Jupiter MOID = 2.33518 au 
 T_jup = 3.361 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.496573270419038E-15 -1.978684448047966E-14 1.195777975950022E-11 -9.749866923786541E-14 2.916783885003769E-12 -2.178872612869821E-15
q -1.978684448047966E-14 5.319684905948935E-14 -3.799765502532887E-11 2.581508230747521E-13 -9.151748604999019E-12 6.989724081308291E-15
tp 1.195777975950022E-11 -3.799765502532887E-11 2.406857067856922E-7 -2.051325129912244E-10 5.432147818211346E-8 1.28216032347194E-11
node -9.749866923786541E-14 2.581508230747521E-13 -2.051325129912244E-10 3.445122649634843E-9 -3.474209007769321E-9 1.399384793054962E-10
peri 2.916783885003769E-12 -9.151748604999019E-12 5.432147818211346E-8 -3.474209007769321E-9 1.56967124182688E-8 -1.363365863314485E-10
i -2.178872612869821E-15 6.989724081308291E-15 1.28216032347194E-11 1.399384793054962E-10 -1.363365863314485E-10 7.832475564047953E-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 16.5   n/a MPO433970  

305863 (2009 EO25)          Discovered 2009-Mar-03 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 EO25 = 2002 RJ180 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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