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Mean Local Time of the Ascending Node

  • atan3four quadrant inverse tangent
  • funargthis function computes fundamental arguments (mean elements)
  • gast2this function computes the greenwich sidereal time
  • gdateconvert Julian date to Gregorian (calendar) date
  • getdateinteractive request and input of calendar date
  • getmltaninteractive request and input of mltan
  • gettimeinteractive request and input of universal time
  • jd2str(jdate)convert Julian date to string equivalent
  • julianJulian date
  • ltan2raanconvert local time of the ascending node (LTAN)
  • mltan2raanconvert mean local time of the ascending node (MLTAN)
  • nod(jdate)this function evaluates the nutation series and returns the
  • raan2mltanconvert right ascension of the ascending node (RAAN)
  • sun2precision ephemeris of the Sun
  • mltan.m
  • View all files
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Mean Local Time of the Ascending Node


David Eagle (view profile)


19 Nov 2012 (Updated )

Determines the relationship between mean local time of the ascending node and RAAN.

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This geometric relationship defines the orientation of the spacecraft’s orbital plane with respect to the mean Sun. The MLTAN/RAAN relationship is important for mission design of sun-synchronous, repeating ground track, and other types of mission orbits that must satisfy Sun-orbit plane and other lighting constraints.

MATLAB release MATLAB 7.14 (R2012a)
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15 Jul 2013 1.1

Corrected annotation for raan2mltan.m function.

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