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Highlights from
A MATLAB Script for Time and Coordinate Calculations

  • atan3four quadrant inverse tangent
  • brentsolve for a single real root of a nonlinear equation
  • coe2eqoe(coe)convert classical orbital elements to
  • coe2mee(mu, coe)convert classical orbital elements to modified equinoctial orbital elements
  • ecf2eciecf-to-eci transformation
  • eci2ecfeci-to-ecf transformation
  • eci2fpc1(gast, reci, veci)convert inertial state vector to flight path coordinates
  • eci2mee(mu, reci, veci)convert eci state vector to
  • eci2orb1convert eci state vector to six classical orbital
  • eci2orb2convert eci state vector to complete set of classical orbital elements
  • eqxrathis function computes the intermediate right ascension
  • erotthis function returns the value of the earth rotation angle
  • etilt1this function computes quantities related to the orientation
  • findleap(jdate)find number of leap seconds for utc julian date
  • fpc2ecftransform relative flight path coordinates
  • fpc2eci(gst, fpc)convert relative flight path coordinates to inertial state vector
  • funargthis function computes fundamental arguments (mean elements)
  • gast2this function computes the greenwich sidereal time
  • gast4this function computes the greenwich sidereal time
  • gdateconvert Julian date to Gregorian (calendar) date
  • geodet1geodetic latitude and altitude
  • geodet4geodetic to geocentric coordinates
  • get_tdb_timeinteractive request and input of Barycentric Dynamical Time
  • get_utc_timeinteractive request and input of universal coordinated time
  • getdateinteractive request and input of calendar date
  • getoe(ioev)interactive request of classical orbital elements
  • getsvinteractive request of state vector
  • gettimeinteractive request and input of universal time
  • hrs2hmsconvert decimal hours to hours,
  • jd2str(jdate)convert Julian date to string equivalent
  • jdfunctionobjective function for tdb2utc
  • julianJulian date
  • kepler1solve Kepler's equation for circular,
  • lla2eciconvert geodetic altitude, latitude and longitude to eci position vector
  • mee2coe(mee)convert modified equinoctial elements to classical orbit elements
  • nod(jdate)this function evaluates the nutation series and returns the
  • nut2000bnutation based on iau 2000b theory
  • obliq(t)function to compute mean obliquity of the ecliptic in arcseconds
  • oeprint1(mu, oev, ittype)print six classical orbital elements
  • oeprint3(mu, oev, ittype)print complete set of orbital elements
  • om_constantsastrodynamic and utility constants
  • orb2eci(mu, oev)convert classical orbital elements to eci state vector
  • orb2hyper(oev)this function converts classical orbital elements
  • osc2meanconvert osculating classical orbital elements
  • read_rv2tle(filename)read rv2tle data file
  • readfpc1(filename)read flight path coordinates data file
  • readgeo1(filename)read geodetic coordinates data file
  • readleapread leap seconds data file
  • readmee1(filename)read modified equinoctial orbital elements data file
  • readoe1(filename)read classical orbital elements data file
  • readsv1(filename)read eci state vector data file
  • rv2fpctransform from cartesian coordinates
  • rv2hyperconvert position and velocity vectors to
  • rv2tle(reci, veci)convert osculating position and velocity vectors
  • svprint(r, v)print position and velocity vectors and magnitudes
  • tdb2utcconvert TDB julian date to UTC julian date
  • times_novasthis function computes the terrestrial time (tt) julian date
  • utc2tdbconvert UTC julian date to TDB julian date
  • utc2ttconvert UTC julian date to TT julian date
  • csystems.m
  • elong2ra.m
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A MATLAB Script for Time and Coordinate Calculations


David Eagle (view profile)


Interactive MATLAB script that can be used to perform time and coordinate calculations.

coe2mee(mu, coe)

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