Satellite Geolocation for Animal Tracking

Description Usage Arguments Details Value

Twilight residuals for known locations

1	twilightResiduals(twilight, rise, p, zenith = 96)

`twilight`	the observed times of twilight as POSIXct.
`rise`	logical vector indicating which twilights are sunrise.
`p`	a two column matrix of (lon,lat) locations
`zenith`	the solar zenith angle that defines twilight.

Given known locations p, this function calculates the difference between the predicted and observed twilights for those locations, where the sign is chosen so that obscuration of the sensor leads to a positive residual.

a vector twilight residuals (in minutes).

KateGoodenough/RoL-SGAT documentation built on June 11, 2019, 1:29 p.m.