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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02852210681685902 8.3546e-08  
a 2.697300736703045 3.1022e-08 au
q 2.620368036973608 2.1921e-07 au
i 5.759424441551793 8.3653e-06 deg
node 13.49579277012421 5.6618e-05 deg
peri 1.142893678624495 0.00012987 deg
M 34.15681287342537 0.00011281 deg
tp 2459046.979165278086
(2020-Jul-16.47916528)
0.00050806 TDB
period 1618.052032685054
4.43
2.7914e-05
7.642e-08
d
yr
n .2224897547964529 3.8383e-09 deg/d
Q 2.774233436432482 3.1907e-08 au
  Orbit Determination Parameters
   # obs. used (total)      186  
   data-arc span      6694 days (18.33 yr)  
   first obs. used      2002-09-14  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57645  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:56:46  

Additional Information
 Earth MOID = 1.61853 au 
 Jupiter MOID = 2.33403 au 
 T_jup = 3.361 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457693.5 (2016-Nov-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03029384307059177 8.3431e-08  
q 2.615694976030587 2.1896e-07 au
tp 2457417.072280114834
(2016-Jan-29.57228011)
0.00049386 TDB
node 13.60606370145353 5.648e-05 deg
peri 358.561207696906 0.00012483 deg
i 5.766903409860739 8.3753e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      186  
   data-arc span      6694 days (18.33 yr)  
   first obs. used      2002-09-14  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57645  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:56:46  

Additional Information
 Jupiter MOID = 2.33403 au 
 T_jup = 3.361 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.960721558693159E-15 -1.810934097929624E-14 1.28164584005645E-11 -6.020881635662477E-14 3.023197222453751E-12 -7.485192558746902E-15
q -1.810934097929624E-14 4.794381116957752E-14 -4.057389335401064E-11 1.548666976421149E-13 -9.472949348925082E-12 2.121731794053447E-14
tp 1.28164584005645E-11 -4.057389335401064E-11 2.439010539836779E-7 -8.917111517553798E-11 5.500764954910055E-8 -1.148369816884956E-11
node -6.020881635662477E-14 1.548666976421149E-13 -8.917111517553798E-11 3.190012510487338E-9 -3.193317236356563E-9 1.826141939606657E-10
peri 3.023197222453751E-12 -9.472949348925082E-12 5.500764954910055E-8 -3.193317236356563E-9 1.558337129430322E-8 -1.843112090499844E-10
i -7.485192558746902E-15 2.121731794053447E-14 -1.148369816884956E-11 1.826141939606657E-10 -1.843112090499844E-10 7.014629140168839E-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 16.66   n/a MPCxxxxx  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1902-Jul-29 00:05 00:09 Hebe 0.0185346067661924 0.0185092240335488 0.0185601733827354 6.10973480011635 6.10973474521895 2415959.503654122 8.61778569490562 3178.1473921198 57.6086097634521 -66.4687702191662 44116.0958142761 T 12 CATAB v2.0f-lin.ifort 2021-Apr-14 05:56:47 2021-Apr-14 05:56
2137-Sep-20 22:45 00:07 Juno 0.0254421217479885 0.0254107949483992 0.0254736319528023 7.00684758633111 7.00684751808625 2501846.447662788 6.64000352518849 3751.16852249207 68.5526837145685 -65.3415309402047 50441.8267964092 T 12 CATAB v2.0f-lin.ifort 2021-Apr-14 05:56:47 2021-Apr-14 05:56

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