ORBITBREAKS is the jOceans module of jLab.

 ORBITBREAKS  Separate orbit into passes based on turning points.
 
    ORBITBREAKS is a low-level function called by ABOUT_TPJAOS.
 
    [LAT,LON]=ORBITBREAKS(LAT,LON), where LAT and LON are column vectors
    representing a satellite orbital groundtrack, is used to separate 
    different passes based on the turning points in latitude.
 
    NANs are inserted into both LAT and LON wherever LAT has a turning
    point.  Note that no data is removed.
 
    All latitudes and lontidues are in degrees.  The output longitude has 
    range [-180, 180].
 
    Calling COL2MAT(LAT,LON) will then reshape LAT and LON into matrices, 
    with each orbital pass in its own column.
    
    [LAT,LON,X1,X2,... XN]=ORBITBREAKS(LAT,LON,X1,X2,... XN) will insert
    NANs into the other arguments in the same locations as for LAT and LON.
 
    The input arguments should contain no NANs.  For missing data, use INFs
    instead.
 
    ORBITBREAKS(LAT,LON, ...) with no output arguments overwrites the 
    original variables.
 
    See also COLBREAKS, COL2MAT.
 
    'orbitbreak --t' runs a test.
 
    Usage: [lat,lon]=orbitbreaks(lat,lon);
           [lat,lon,x1,x2,x3]=orbitbreaks(lat,lon,x1,x2,x3);
           orbitbreaks(lat,lon);
           orbitbreaks(lat,lon,x1,x2,x3);
    __________________________________________________________________
    This is part of JLAB --- type 'help jlab' for more information
    (C) 2006--2015 J.M. Lilly --- type 'help jlab_license' for details

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