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(1991 TF3)
Classification: Apollo [NEO]          SPK-ID: 3003147
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5697544244622279 8.6292e-08  
a 2.232128808656767 3.9888e-09 au
q .9603635439549723 1.9323e-07 au
i 14.87693094638802 1.9816e-05 deg
node 6.096968221825008 1.242e-05 deg
peri 304.0100827907115 3.2666e-05 deg
M 230.0174367012281 7.6863e-06 deg
tp 2459440.304736538135
(2021-Aug-13.80473654)
2.6596e-05 TDB
period 1218.084188644589
3.33
3.265e-06
8.939e-09
d
yr
n .2955460742008206 7.922e-10 deg/d
Q 3.503894073358561 6.2614e-09 au
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      7335 days (20.08 yr)  
   first obs. used      1991-10-02  
   last obs. used      2011-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45869  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Aug-25 05:25:20  

Additional Information
 Earth MOID = .0838852 au 
 Jupiter MOID = 2.01209 au 
 T_jup = 3.372 
[ show covariance matrix ]

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 19.2   n/a MPO230176  

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