lib_SRT.utils package

lib_SRT.utils.coordsConversions module

AzAlt2Gal(az, alt)

Utilitary method that transforms the input Azimuth (Az) and Elevation (Alt) coordinates to galactic longitude (long) and latitude (b) coordinates. AzAlt is computed taking into account the geolocation of VEGA, stored in global variables OBS_LAT, OBS_LON and OBS_HEIGHT.

Parameters:

  • az (float) – Input Az coordinate in decimal degrees

  • alt (float) – Input Alt coordinate in decimal degrees

Returns:

Converted galactic coordinates

Return type:

(float,float)

AzAlt2RaDec(az, alt)

Utilitary method that transforms the input Azimuth (Az) and Elevation (Alt) coordinates to Right Ascension (RA) and Declination (Dec) coordinates. AzAlt is computed taking into account the geolocation of VEGA, stored in global variables OBS_LAT, OBS_LON and OBS_HEIGHT.

Parameters:

  • az (float) – Input Az coordinate in decimal degrees

  • alt (float) – Input Alt coordinate in decimal degrees

Returns:

Converted RaDec coordinates

Return type:

(float,float)

Gal2AzAlt(long, b)

Utilitary method that transforms the input galactic longitude (long) and latitude (b) coordinates to Azimuth (Az) and elevation (Alt) coordinates. AzAlt is computed taking into account the geolocation of VEGA, stored in global variables OBS_LAT, OBS_LON and OBS_HEIGHT.

Parameters:

  • long (float) – Input long coordinate in decimal hours

  • b (float) – Input b coordinate in decimal degrees

Returns:

Converted AzAlt coordinates

Return type:

(float,float)

RaDec2AzAlt(ra, dec)

Utilitary method that transforms the input Right Ascension (RA) and Declination (Dec) coordinates to Azimuth (Az) and elevation (Alt) coordinates. AzAlt is computed taking into account the geolocation of VEGA, stored in global variables OBS_LAT, OBS_LON and OBS_HEIGHT.

Parameters:

  • ra (float) – Input RA coordinate in decimal hours

  • dec (float) – Input Dec coordinate in decimal degrees

Returns:

Converted AzAlt coordinates

Return type:

(float,float)

TLE2AzAlt(tle, delay=0)

Returns az and alt position of sat at current time given TLE

Parameters:

  • tle (? TODO: find this) – The target satellite TLE

  • delay (float) – Delay in seconds to introduce in the TLE propagation in order to cope with the slew duration to the tracking path

Returns:

The converted AzAlt coordinates

Return type:

(float, float)

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