Path: SCPro/ProEnvirons
% Computes the flux from a flat plate. Assumes a single sided Lambertian radiator. Includes eclipses. This function assumes that the spacecraft are in earth orbit. The function does not handle blockage from the earth since the distance would be too great for any flux to reach the spacecraft from the target. Type SolarFluxFromPlateECI for a demo of two spacecraft about 7 km apart. The camera in the demo points at the target and the flat plate points at the camera. The flate plate is in a slightly elliptical orbit. Since version 11. -------------------------------------------------------------------------- Form: e = SolarFluxFromPlateECI( r, rP, n, a, rho, b, fNum, jD ) -------------------------------------------------------------------------- ------ Inputs ------ r (3,:) Spacecraft position in ECI (km) rP (3,:) Plate position in ECI (km) n (3,:) Plate outward normal vector in ECI a (1,1) Plate area (m^2) rho (1,1) Surface albedo (0 to 1) b (3,1) Boresight (ECI) fNum (1,1) f# = focal length/aperture jD (1,:) Julian Date (day) ------- Outputs ------- e (1,:) Flux (W/m^2) -------------------------------------------------------------------------- Reference: Trucco, E. and A. Verri, "Introductory Techniques for 3-D Computer, Vision," Prentice-Hall, 1998, pp. 22-25. --------------------------------------------------------------------------
Common: Graphics/Plot2D Common: Time/Date2JD Math: Linear/Dot Math: Linear/Mag Math: Linear/Unit Orbit: OrbitMechanics/RVOrbGen SC: Ephem/Eclipse SC: Ephem/SunV1
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