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254849 (2005 RE9)
Classification: Main-belt Asteroid          SPK-ID: 2254849
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1056332513524721 5.9351e-08  
a 2.749194341884424 2.0407e-08 au
q 2.458788004951353 1.5703e-07 au
i 11.12343235465035 4.439e-06 deg
node 318.8246136677653 2.6265e-05 deg
peri 47.14172848324563 3.5311e-05 deg
M 74.82361990006353 2.0595e-05 deg
tp 2458654.446852746146
(2019-Jun-19.94685275)
9.5355e-05 TDB
period 1664.970676074996
4.56
1.8539e-05
5.076e-08
d
yr
n .2162200242761419 2.4075e-09 deg/d
Q 3.039600678817497 2.2563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      13649 days (37.37 yr)  
   first obs. used      1982-09-12  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4634  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 11:08:25  

Additional Information
 Earth MOID = 1.4696 au 
 Jupiter MOID = 2.41785 au 
 T_jup = 3.311 
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Orbital Elements at Epoch 2457541.5 (2016-Jun-02.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1059977645887491 6.0006e-08  
q 2.457214768400907 1.5887e-07 au
tp 2456983.137151178669
(2014-Nov-21.63715118)
9.6378e-05 TDB
node 319.0179104052601 2.6198e-05 deg
peri 45.68068261149973 3.5077e-05 deg
i 11.13921002333698 4.4474e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      13649 days (37.37 yr)  
   first obs. used      1982-09-12  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4634  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 11:08:25  

Additional Information
 Jupiter MOID = 2.41785 au 
 T_jup = 3.311 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.600692990392953E-15 -9.479921891634465E-15 -1.027030763676094E-12 -6.754905131060541E-15 -3.076950612174726E-13 -1.195028707093188E-14
q -9.479921891634465E-15 2.52393796744493E-14 2.475056882666196E-12 2.038186425669806E-14 7.783140673896744E-13 3.279545626072327E-14
tp -1.027030763676094E-12 2.475056882666196E-12 9.288698783298134E-9 -3.979068722309879E-11 2.276231909599901E-9 -9.816662660561027E-12
node -6.754905131060541E-15 2.038186425669806E-14 -3.979068722309879E-11 6.863519332782381E-10 -6.822021900682228E-10 4.119605200582375E-11
peri -3.076950612174726E-13 7.783140673896744E-13 2.276231909599901E-9 -6.822021900682228E-10 1.23038823686176E-9 -4.253202808855213E-11
i -1.195028707093188E-14 3.279545626072327E-14 -9.816662660561027E-12 4.119605200582375E-11 -4.253202808855213E-11 1.977981104969365E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO503190  

254849 (2005 RE9)          Discovered 2005-Sep-09 by Lowe, A. at Mayhill
Reference: 20101128/Numbers.arcLast Updated: 2010-12-06

Alternate Designations
 2005 RE9 = 2001 XL34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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