is_polar_night

Determines whether a given location on Mars is experiencing polar night (24-hour darkness)
for the specified season. During polar night, the sun remains below the horizon continuously.

A set of functions to calculate solar irradiance and insolation on Mars horizontal and inclined surfaces. Based on NASA Technical Memoranda 102299, 103623, 105216, 106321, and 106700, i.e. the canonical Mars solar radiation papers.

Georges Labrèche

marsrad

Mars Solar Radiation

is_polar_night function

<dl><dt>Ls</dt>
<dd>Areocentric longitude [deg]</dd>
<dt>phi</dt>
<dd>Planetary latitude [deg]</dd></dl>

Arguments

Check if location is experiencing polar night — is_polar_night

<dl>

<dt>Ls</dt>
<dd>Areocentric longitude [deg]</dd>


<dt>phi</dt>
<dd>Planetary latitude [deg]</dd>

</dl>

is_polar_night: Check if location is experiencing polar night

Description

Usage

Value

Arguments