.. index:: ! ext_orb_s1a          

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ext_orb_s1a       
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Synopsis
--------
**ext_orb_s1a** *name_of_prm name_of_orb_xml name_output*


Description
-----------
**ext_orb_s1a**  Create a .LED file

Requires Arguments
------------------

*name_of_prm*

	Name of relevant PRM file

*name_of_orb_xml*

	Name of relevant orbit file (.EOF file extension)

*name_output*

	Name of your output LED file           
    

Example
-------
 ::

    ext_orb_s1a S1A20140807.PRM S1A_OPER_AUX_POEORB_OPOD_20150615T155109_V20150525T225944_20150527T005944.EOF output 

Output: output.LED