Skip to content

Changed get_observer_look function to match Oribtal.get_observer_look #44

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
dpfinch wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Changed get_observer_look function to match Oribtal.get_observer_look #44

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 4 additions & 16 deletions pyorbital/orbital.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -98,6 +98,8 @@ def get_observer_look(sat_lon, sat_lat, sat_alt, utc_time, lon, lat, alt):

Return: (Azimuth, Elevation)
"""

utc_time = dt2np(utc_time)
(pos_x, pos_y, pos_z), (vel_x, vel_y, vel_z) = astronomy.observer_position(
utc_time, sat_lon, sat_lat, sat_alt)

Expand Down Expand Up @@ -126,22 +128,8 @@ def get_observer_look(sat_lon, sat_lat, sat_alt, utc_time, lon, lat, alt):

az_ = np.arctan(-top_e / top_s)

if has_xarray and isinstance(az_, xr.DataArray):
az_data = az_.data
else:
az_data = az_

if has_dask and isinstance(az_data, da.Array):
az_data = da.where(top_s > 0, az_data + np.pi, az_data)
az_data = da.where(az_data < 0, az_data + 2 * np.pi, az_data)
else:
az_data[np.where(top_s > 0)] += np.pi
az_data[np.where(az_data < 0)] += 2 * np.pi

if has_xarray and isinstance(az_, xr.DataArray):
az_.data = az_data
else:
az_ = az_data
az_ = np.where(top_s > 0, az_ + np.pi, az_)
az_ = np.where(az_ < 0, az_ + 2 * np.pi, az_)

rg_ = np.sqrt(rx * rx + ry * ry + rz * rz)
el_ = np.arcsin(top_z / rg_)
Expand Down