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(2009 DR3)
Classification: Apollo [NEO, PHA]          SPK-ID: 3447934
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5604946591927984 6.756e-08  
a 1.975873390260072 1.5545e-08 au
q .8684069077781337 1.2756e-07 au
i 4.080372653935796 9.5378e-06 deg
node 344.6994410962308 1.6695e-05 deg
peri 237.5151019022865 2.9292e-05 deg
M 1.438103336527528 2.1398e-05 deg
tp 2458996.447484461707
(2020-May-26.94748446)		 6.0251e-05 TDB
period 1014.465064317308
2.78		 1.1972e-05
3.278e-08		 d
yr
n .3548668285016444 4.1879e-09 deg/d
Q 3.08333987274201 2.4259e-08 au
   Orbit Determination Parameters
   # obs. used (total)      249  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      4231 days (11.58 yr)  
   first obs. used      2009-02-14  
   last obs. used      2020-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .33094  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-26 06:43:04  

Additional Information
 Earth MOID = .00951011 au 
 Jupiter MOID = 1.92373 au 
 T_jup = 3.652 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456334.5 (2013-Feb-11.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5610596802857354 6.8115e-08  
q .8667176936132635 1.2855e-07 au
tp 2455954.067558591948
(2012-Jan-27.56755859)		 2.248e-05 TDB
node 344.8288304088861 1.6656e-05 deg
peri 237.3750190101998 2.9201e-05 deg
i 4.084045999799258 9.5447e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      249  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      4231 days (11.58 yr)  
   first obs. used      2009-02-14  
   last obs. used      2020-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .33094  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-26 06:43:04  

Additional Information
 Jupiter MOID = 1.92373 au 
 T_jup = 3.652 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.639657549817457E-15 -8.7527897541957E-15 1.459471771297981E-12 3.705937625996338E-14 1.607237271702227E-12 -8.571882378104325E-15
q -8.7527897541957E-15 1.652445994545272E-14 -2.732373405460381E-12 -6.936324142004585E-14 -3.034276164682594E-12 1.687839852194175E-14
tp 1.459471771297981E-12 -2.732373405460381E-12 5.053588592523487E-10 5.174206966488095E-12 5.190116455661459E-10 -1.39063446384943E-12
node 3.705937625996338E-14 -6.936324142004585E-14 5.174206966488095E-12 2.774376534460261E-10 -2.683696819727429E-10 1.167907171952343E-10
peri 1.607237271702227E-12 -3.034276164682594E-12 5.190116455661459E-10 -2.683696819727429E-10 8.527156669805958E-10 -1.185771800898177E-10
i -8.571882378104325E-15 1.687839852194175E-14 -1.39063446384943E-12 1.167907171952343E-10 -1.185771800898177E-10 9.110184927139716E-11

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.5   n/a MPO160607  

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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