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100936 Mekong (1998 ME43)
Classification: Main-belt Asteroid          SPK-ID: 2100936
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .131187412034059 3.5232e-08  
a 2.407698193851654 1.0947e-08 au
q 2.091838498841177 8.9791e-08 au
i 2.60466938134312 3.2598e-06 deg
node 283.4846384358589 0.00010572 deg
peri 358.2964239081297 0.00010759 deg
M 315.6518789061394 1.9143e-05 deg
tp 2459168.602518970117
(2020-Nov-15.10251897)
7.2357e-05 TDB
period 1364.587841301353
3.74
9.3065e-06
2.548e-08
d
yr
n .2638159223642813 1.7992e-09 deg/d
Q 2.723557888862131 1.2383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      725  
   data-arc span      10009 days (27.40 yr)  
   first obs. used      1993-01-21  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60896  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:13:55  

Additional Information
 Earth MOID = 1.07537 au 
 Jupiter MOID = 2.39935 au 
 T_jup = 3.508 
[ 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 16.0   n/a MPO432536  

100936 Mekong           Discovered 1998 June 26 by E. W. Elst at the European Southern Observatory.
The Mekong is a 4350-kilometre river flowing through China, Myanmar, Laos, Thailand, Cambodia and Vietnam.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-03-14

[ show close-approach data ]
Alternate Designations
 1998 ME43 = 2002 PR74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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