Seasonal Indicator

Input Parameter

ls

Physical Definition

The celestial longitude of the Sun. The time of year based on the position of the Sun through its apparent revolution around a body, with L_S = 0^o as the vernal equinox

Davinci Usage

Definition:

• Same as Physical Definition

Values:

• Input: Real Value Parameter

• Units: Degrees

• Range = (0, 360)

• Default Value = -32768 (i.e. all seasons of the year)

Input Parameter Name:

• ls

KRC Usage

Definition:

• The celestial longitude of the Sun based on Mars-centric orbit.

Values:

• Input = Real Value Parameter in F10.2 FORTRAN format

i.e. Floating point value, with a field width of 10, including leading blank spaces, plus or minus sign, decimal point and 2 integers after the decimal point.

• Units: Same as Davinci

• Range = (0, 360)

• Default Value = .0

Input Parameter Name:

• LsubS (Old Parameter Name Listed in Helplist as: SUBS)