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Path: SC/Attitude
% Computes a spin precession maneuver using a rhumb line precession.
Includes arc efficiency.
Since version 1.
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Form:
[delay, pulses, prec, azimuth, dTheta] = NPSPM(pulsewidth,t,h,s,spinRate,
uSun,rAI,decI,rAF,decF,tauRise,tauFall)
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Inputs
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pulsewidth (1,1) Pulsewidth (sec)
t (3,n) Torque vectors of thrusters
h (3,1) Momentum vector
s (3,1) Sensor pulse axis
spinRate (1,1) Spin rate (rad/sec)
uSun (3,1) Sun Vector
rAI (1,1) Initial right ascension (rad)
decI (1,1) Initial declination (rad)
rAF (1,1) Final right ascension (rad)
decF (1,1) Final declination (rad)
tauRise (1,1) Rise time constant
tauFall (1,1) Fall time constant
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Outputs
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delay (1,1) Delay (sec)
pulses (1,1) Number of pulses
prec (1,1) Precession angle
azimuth (1,1) Maneuver azimuth (rad)
dTheta (1,1) Precession per pulse (rad)
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SC: Actuator/EffPw SC: Attitude/ArcEff SC: Attitude/PPDelay SC: Attitude/RLP
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