poliastro.sensors¶
Module Contents¶
Functions¶
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Calculate the minimum and maximum values of ground-range angles. |
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Calculate the difference in ground-range angles. |
- poliastro.sensors.min_and_max_ground_range(altitude, fov, boresight, R)¶
Calculate the minimum and maximum values of ground-range angles.
- Parameters
- Returns
lat_lon_min (~astropy.units.Quantity) – Minimum value of latitude and longitude.
lat_lon_max (~astropy.units.Quantity) – Maximum value of latitude and longitude.
- poliastro.sensors.ground_range_diff_at_azimuth(altitude, fov, boresight, azimuth, nadir_lat, nadir_lon, R)¶
Calculate the difference in ground-range angles.
Use the boresight angle, the latitude and longitude of the target, and the desired azimuth (which directs where the sensor is looking).
- Parameters
altitude (Quantity) – Altitude over surface.
fov (Quantity) – Angle of the total area that a sensor can observe.
boresight (Quantity) – Center boresight angle.
azimuth (Quantity) – Azimuth angle, used to specify where the sensor is looking.
nadir_lat (Quantity) – Latitude angle of nadir point.
nadir_lon (Quantity) – Longitude angle of nadir point.
R (Quantity) – Attractor equatorial radius.
- Returns
ground_range_diff (~astropy.units.Quantity) – The difference in ground-range angles from the boresight angle.
target_lat (~astropy.units.Quantity) – Latitude angle of the target point.
target_lon (~astropy.units.Quantity) – Longitude angle of the target point.
- Raises
ValueError – This formula always gives the answer for the short way to the target of the acute azimuth angle, which must be greater or equal than 0º and less than 180º.