The azimuth time of a certain line (number) is computed as:

(D32) |

Where:

is the azimuth time to line 1 (first line).

And the line number *l*, given a certain azimuth time , can
be computed as:

(D33) |

Where:

is the azimuth time to line 1 (first line).

Leijen 2009-04-14