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129317 (2005 TM18)
Classification: Main-belt Asteroid          SPK-ID: 2129317
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 .2091691175282514 4.367e-08  
a 2.349293140868377 1.1651e-08 au
q 1.857893567777765 1.0641e-07 au
i 3.229774743198701 4.8939e-06 deg
node 104.9614773808098 8.6015e-05 deg
peri 293.282929572351 8.7126e-05 deg
M 13.93867408907473 1.622e-05 deg
tp 2458949.575918352335
(2020-Apr-10.07591835)
5.9019e-05 TDB
period 1315.237681576084
3.60
9.7838e-06
2.679e-08
d
yr
n .2737147855805062 2.0361e-09 deg/d
Q 2.840692713958989 1.4088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      412  
   data-arc span      7615 days (20.85 yr)  
   first obs. used      1998-12-15  
   last obs. used      2019-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60057  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 15:16:37  

Additional Information
 Earth MOID = .868404 au 
 Jupiter MOID = 2.58098 au 
 T_jup = 3.527 
[ show covariance matrix ]

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 16.4   n/a MPO493740  

129317 (2005 TM18)          Discovered 2005-Oct-01 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2005 TM18 = 1998 XM57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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