Starflight I :- Longitude
In SFI longitudes are stored as words.
Each word is based on a scale of 1152 with the meridian being at 1152.
Hence to extract a longitude from the data you need the following code.
if (word < 1152 {
// WEST degrees
longitude = ((1152 - word) * 180) / 1152;
} else {
// EAST degrees
longitude = ((word - 1152) * 180) / 1152;
}