Before revision: Determination and application of beta angles The value of a solar beta angle for a satellite in Earth orbit can be found using the equation where is the Ecliptic True Solar Longitude , is the Right Ascension of Ascending Node (RAAN), is the orbit's inclination, and is the Obliquity of the Ecliptic (approximately 23.45 degrees for Earth at present).
After revision: Determination and application of beta angles The value of a solar beta angle for a satellite in Earth orbit can be found using the equation where is the ecliptic true solar longitude , is the right ascension of ascending node (RAAN), is the orbit's inclination, and is the obliquity of the ecliptic (approximately 23.45 degrees for Earth at present).