Convert Cartesian Vector to Spherical Coordinates

Given a Cartesian vector, returns latitude, longitude, and distance in spherical coordinates.

Given a Cartesian vector, returns latitude, longitude, and distance.

Usage

astro_sphere_from_vector(vector)

astro_sphere_from_vector(vector)

Arguments

vector

A list with components:

x

The Cartesian x-coordinate in AU

y

The Cartesian y-coordinate in AU

z

The Cartesian z-coordinate in AU

t

The date and time (POSIXct) at which this vector is valid

Value

A list representing spherical coordinates with elements:

• lat: Latitude in degrees

• lon: Longitude in degrees (0-360)

• dist: Distance in AU

• status: Status code (0 = success)

A list with components:

lat

Latitude angle: -90..+90 degrees

lon

Longitude angle: 0..360 degrees

dist

Distance in AU

status

Status code (0 = success)

Examples

vec <- list(x = 1, y = 1, z = 1, t = as.POSIXct("2024-01-01", tz = "UTC"))
sphere <- astro_sphere_from_vector(vec)

# Convert Cartesian to spherical
vec <- list(x = 1, y = 0, z = 0, t = as.POSIXct("2024-01-01", tz = "UTC"))
sphere <- astro_sphere_from_vector(vec)