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118418 (1999 TP18)
Classification: Main-belt Asteroid          SPK-ID: 2118418
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1034218746420081 8.3088e-08  
a 3.168391494411559 5.5317e-08 au
q 2.840710506459722 2.8642e-07 au
i 8.909685714912547 8.8048e-06 deg
node 208.9007625260559 4.6327e-05 deg
peri 127.8611419868727 6.1379e-05 deg
M 31.48596393445446 4.663e-05 deg
tp 2457420.334688096569
(2016-Feb-01.83468810)
0.00026415 JED
period 2059.950027899917
5.64
5.3947e-05
1.477e-07
d
yr
n .174761520970979 4.5768e-09 deg/d
Q 3.496072482363396 6.1038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      460  
   data-arc span      7974 days (21.83 yr)  
   first obs. used      1993-09-16  
   last obs. used      2015-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50242  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 17:33:35  

Additional Information
 Earth MOID = 1.84249 au 
 Jupiter MOID = 1.93209 au 
 T_jup = 3.176 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO257551  

118418 (1999 TP18)          Discovered 1999-Oct-14 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1999 TP18 = 2004 RS42 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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