Simulate a spin precession maneuver for ComStar.
Spin precession maneuvers are used during transfer orbit to reorient the spin-axis.
------------------------------------------------------------------------- See also SPMMnvr, ComStar, Date2JD -------------------------------------------------------------------------
%-------------------------------------------------------------------------- % Copyright (c) 1994-1996 Princeton Satellite Systems, Inc. % All rights reserved. %-------------------------------------------------------------------------- % Since version 2. %-------------------------------------------------------------------------- rAI = 0; decI = 3*pi/18; rAF = rAI; decF = 9*pi/18; pW = 0.2; % pulsewidth in sec jD = Date2JD([1996 3 21 0 0 0]); % equinox p = 350*6895*ones(1,8); % pressure in N/m^2 w = [0;0;5]*pi/30; % 5 RPM tId = [1 2 3 4 5 6 7 8]; cM = ComStar('TO CM'); inertia = ComStar('TO Inertia'); [fuelUsed, q] = SPMMnvr( p, tId, pW, jD, inertia, cM, w, rAI, decI, rAF, decF, 'ComStar' ); TimeGUI('close'); %-------------------------------------- % $Date$ % $Revision$
azimuth =
3.1277e+00
prec =
1.0472e+00
t =
Columns 1 through 6
0 0 0 0 0 0
-4.8035e+00 3.1892e+00 3.1892e+00 -4.8035e+00 4.8035e+00 -3.1892e+00
-3.9963e+00 -3.9963e+00 3.9963e+00 3.9963e+00 3.9963e+00 3.9963e+00
Columns 7 through 8
0 0
-3.1892e+00 4.8035e+00
-3.9963e+00 -3.9963e+00
dTheta =
9.1171e-03
pulses =
114
Spin Precession Maneuver
------------------------
Spinrate = 5.00 rpm
Right Ascension Start = 0.00 deg
Declination Start = 30.00 deg
Right Ascension Final = 0.00 deg
Declination Final = 90.00 deg
Number of Pulses = 114
