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JPL Small-Body Database Browser
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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1311874310458536 4.1177e-08  
a 2.407698200219351 1.3193e-08 au
q 2.091838458598849 1.004e-07 au
i 2.604675443754786 4.7461e-06 deg
node 283.4847543958263 0.00012425 deg
peri 358.2963159878327 0.00012623 deg
M 315.6518672104572 2.3371e-05 deg
tp 2459168.602563969733
(2020-Nov-15.10256397)
8.8863e-05 TDB
period 1364.58784671479
3.74
1.1216e-05
3.071e-08
d
yr
n .2638159213177009 2.1684e-09 deg/d
Q 2.723557941839853 1.4924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      9870 days (27.02 yr)  
   first obs. used      1993-01-21  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65949  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:13:46  

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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