convert_geo_coordinates_of_array_elements

Convert and print a list of array element positions in different coordinate systems.

Description

Convert array element positions in different CTAO coordinate systems. Available coordinate systems are:

1. UTM system

2. ground system (similar to sim_telarray system with x-axis pointing toward geographic north and y-axis pointing towards the west); altitude relative to the CORSIKA observation level. Altitude is the height of the elevation rotation axis (plus some possible mirror offset).

3. Mercator system

Command line arguments

input (str)

File name with list of array element positions. Input can be given as astropy table file (ecsv) or a single array element in a json file.

print (str)

Print in requested coordinate system; possible are ground, utm, mercator

export (str)

Export array element list to file in requested coordinate system;

possible are ground, utm, mercator

select_assets (str)

Select a subset of array elements / telescopes (e.g., MSTN, LSTN)

Example

Convert a list of array elements using a list of telescope positions in UTM coordinates.

simtools-convert-geo-coordinates-of-array-elements
    --input tests/resources/telescope_positions-North-utm.ecsv
    --print ground

The converted list of telescope positions in ground coordinates is printed to the screen.

The following example converts a list of telescope positions in UTM coordinates and writes the output to a file in ground (sim_telarray) coordinates. Also selects only a subset of the array elements (telescopes; ignore calibration devices):

simtools-convert-geo-coordinates-of-array-elements
    --input tests/resources/telescope_positions-North-utm.ecsv
    --export ground
    --select_assets LSTN

Expected output is a ecsv file in the directory printed to the screen.

convert_geo_coordinates_of_array_elements.main()

Print a list of array elements.