From 4915321e198820c1f9eb4f80bd0997cd0a5ebb26 Mon Sep 17 00:00:00 2001 From: Gerrit Holl Date: Thu, 16 Jan 2020 14:52:11 +0100 Subject: Explain why sweep axis affects geolocation In the note on the sweep angle, add a line explaining why the sweep angle ultimately affects the geolocation, as it is not immediately or trivially obvious to see why it should matter what the outer or inner gimbal is. To this end, link to a post on Mathematics Stack Exchange that explains this very well. --- docs/source/operations/projections/geos.rst | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/source/operations/projections/geos.rst b/docs/source/operations/projections/geos.rst index e825104f..fb8fb44c 100644 --- a/docs/source/operations/projections/geos.rst +++ b/docs/source/operations/projections/geos.rst @@ -72,6 +72,9 @@ is rotating. The possible values are x or y, y being the default. Thus, the scanning geometry of the Meteosat series satellite should take sweep as y, and GOES should take sweep as x. +The resulting position is different because +`rotation in three dimensions is not commutative `_. + Parameters ################################################################################ -- cgit v1.2.3