poliastro.core.sensors
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Module Contents¶
Functions¶
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Calculates the minimum and maximum values of ground-range angles. |
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Calculates the difference in ground-range angles from the η_center angle and the latitude and longitude of the target |
- poliastro.core.sensors.min_and_max_ground_range(h, η_fov, η_center, R)¶
Calculates the minimum and maximum values of ground-range angles.
- Parameters
- Returns
Λ_min (float) – Minimum value of latitude and longitude.
Λ_max (float) – Maximum value of latitude and longitude.
Notes
For further information, please take a look at “Fundamentals of Astrodynamics and Applications”, 4th ed (2013)” by David A. Vallado, pages 853-860.
- poliastro.core.sensors.ground_range_diff_at_azimuth(h, η_fov, η_center, β, φ_nadir, λ_nadir, R)¶
Calculates the difference in ground-range angles from the η_center angle and the latitude and longitude of the target for a desired phase angle, β, used to specify where the sensor is looking.
- Parameters
h (float) – Altitude over surface.
η_fov (float) – Angle of the total area that a sensor can observe.
η_center (float) – Center boresight angle.
β (float) – Phase angle, used to specify where the sensor is looking.
φ_nadir (float) – Latitude angle of nadir point.
λ_nadir (float) – Longitude angle of nadir point.
R (float) – Earth equatorial radius.
- Returns
delta_λ (float) – The difference in ground-range angles from the eta_center angle.
φ_tgt (float) – Latitude angle of the target point.
λ_tgt (float) – Longitude angle of the target point.
Notes
For further information, please take a look at “Fundamentals of Astrodynamics and Applications”, 4th ed (2013)” by David A. Vallado, pages 853-860.