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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02842008595173974 8.699e-08  
a 2.696956254483447 3.3026e-08 au
q 2.620308525922946 2.3197e-07 au
i 5.75970820461251 8.8733e-06 deg
node 13.49661300889412 5.9271e-05 deg
peri .8956592507124892 0.00013201 deg
M 349.8898556845962 0.00011431 deg
tp 2459045.932238355405
(2020-Jul-15.43223836)
0.00051339 TDB
period 1617.742071498065
4.43
2.9716e-05
8.136e-08
d
yr
n .2225323840818655 4.0876e-09 deg/d
Q 2.773603983043949 3.3965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      6613 days (18.11 yr)  
   first obs. used      2002-09-14  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59251  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:10:27  

Additional Information
 Earth MOID = 1.61997 au 
 Jupiter MOID = 2.33518 au 
 T_jup = 3.361 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457313.5 (2015-Oct-18.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03049558657514185 8.7077e-08  
q 2.615832674548559 2.3254e-07 au
tp 2457418.630492127630
(2016-Jan-31.13049213)
0.00049043 TDB
node 13.60713669221376 5.9129e-05 deg
peri 358.9279091518301 0.00012546 deg
i 5.766773793336725 8.882e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      6613 days (18.11 yr)  
   first obs. used      2002-09-14  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59251  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:10:27  

Additional Information
 Jupiter MOID = 2.33518 au 
 T_jup = 3.361 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.582370078314862E-15 -2.006097549681995E-14 1.180329919601298E-11 -1.032255754468175E-13 2.896768099033375E-12 -1.755912222618472E-15
q -2.006097549681995E-14 5.407258547563773E-14 -3.75121932883387E-11 2.740294128334464E-13 -9.0871571933126E-12 5.883601350317057E-15
tp 1.180329919601298E-11 -3.75121932883387E-11 2.405248036788878E-7 -2.19900624144305E-10 5.428390715916609E-8 1.469430032564656E-11
node -1.032255754468175E-13 2.740294128334464E-13 -2.19900624144305E-10 3.496288168000293E-9 -3.528603993420785E-9 1.345590728826966E-10
peri 2.896768099033375E-12 -9.0871571933126E-12 5.428390715916609E-8 -3.528603993420785E-9 1.573989523075646E-8 -1.305646427473285E-10
i -1.755912222618472E-15 5.883601350317057E-15 1.469430032564656E-11 1.345590728826966E-10 -1.305646427473285E-10 7.888934672798767E-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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