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332887 (2011 AJ55)
Classification: Main-belt Asteroid          SPK-ID: 2332887
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1303196296702011 9.5992e-08  
a 2.741217699996864 4.7166e-08 au
q 2.383983224487872 2.71e-07 au
i 4.387796330681513 9.3423e-06 deg
node 105.6532062032253 0.0001295 deg
peri 94.34542084152135 0.00013711 deg
M 312.5354533786584 3.8933e-05 deg
tp 2459219.064968197289
(2021-Jan-04.56496820)
0.00017979 TDB
period 1657.729698310136
4.54
4.2785e-05
1.171e-07
d
yr
n .2171644752259541 5.6048e-09 deg/d
Q 3.098452175505856 5.3312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      4694 days (12.85 yr)  
   first obs. used      2007-03-15  
   last obs. used      2020-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61374  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 21:12:13  

Additional Information
 Earth MOID = 1.38637 au 
 Jupiter MOID = 1.86945 au 
 T_jup = 3.333 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456817.5 (2014-Jun-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1315359440301777 9.5723e-08  
q 2.379298879605039 2.7036e-07 au
tp 2457562.644772541248
(2016-Jun-23.14477254)
0.00017862 TDB
node 105.7004880678067 0.00012945 deg
peri 94.66056561419975 0.00013695 deg
i 4.389523405531301 9.3476e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      4694 days (12.85 yr)  
   first obs. used      2007-03-15  
   last obs. used      2020-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61374  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 21:12:13  

Additional Information
 Jupiter MOID = 1.86945 au 
 T_jup = 3.333 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.162866882612378E-15 -2.558786750496795E-14 -1.098339731585894E-12 -4.863067664529588E-15 2.417829230464753E-13 -2.120601727959734E-14
q -2.558786750496795E-14 7.309572174643308E-14 2.016568033433855E-12 1.925646697144803E-14 -1.111855919970407E-12 6.085355429020879E-14
tp -1.098339731585894E-12 2.016568033433855E-12 3.190459014782878E-8 -1.351748349796405E-10 8.006546278341063E-9 1.99701539889806E-11
node -4.863067664529588E-15 1.925646697144803E-14 -1.351748349796405E-10 1.675728633298824E-8 -1.674165784097998E-8 3.98977108573778E-10
peri 2.417829230464753E-13 -1.111855919970407E-12 8.006546278341063E-9 -1.674165784097998E-8 1.875651063782054E-8 -3.944169597045817E-10
i -2.120601727959734E-14 6.085355429020879E-14 1.99701539889806E-11 3.98977108573778E-10 -3.944169597045817E-10 8.737675049403078E-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 17.3   n/a MPO413328  

332887 (2011 AJ55)          Discovered 2007-Mar-15 by Bickel, W. at Bergisch Gladbach
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

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Alternate Designations
 2011 AJ55 = 2009 UK159 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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