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(2009 TM8)
Classification: Apollo [NEO]          SPK-ID: 3471520
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4059803337726522 0.0066292  
a 1.550998915946815 0.019591 au
q .9213238583697055 0.0013558 au
i 2.489062790952453 0.59349 deg
node 205.4239708348492 0.40896 deg
peri 220.8295507145358 1.1381 deg
M 149.0424887758705 30.402 deg
tp 2458708.405579364741
(2019-Aug-12.90557936)
54.047 TDB
period 705.5302973826707
1.93
13.368
0.0366
d
yr
n .5102544870652671 0.0096679 deg/d
Q 2.180673973523925 0.027545 au
  Orbit Determination Parameters
   # obs. used (total)      48  
   data-arc span      2 days  
   first obs. used      2009-10-15  
   last obs. used      2009-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .47637  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:59:38  

Additional Information
 Earth MOID = .00103694 au 
 Jupiter MOID = 3.14739 au 
 T_jup = 4.352 
[ 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 28.4   n/a MPO164406  
rotation period rot_per 0.012 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Incomplete or inconclusive result.
Published Reference List:
[Ryan, W. UNPUBLISHED]

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