Tradeoff Analysis of Attitude-Control Slew Algorithms for Prolate Spinner

Feedback slew algorithms for prolate spinners using Single–Thruster

“…With only one thruster mounted perpendicular to the spin-axis, the attitude slew can be achieved using state-of-the-art single-thruster slew algorithms. Existing research [3][4][5][6] on the prolate spinning spacecraft attitude manoeuvre has developed a series of slew algorithms using single-thruster in two categories: Half-cone derived algorithms and Pulse-train algorithms. Halfcone derived algorithms consist of Half-Cone (HC), Multi Half-Cone (MHC), Dual Half-Cone (DHC), Extended Half-Cone (EHC), Sector Arc Slew (SAS), Multi Sector Arc (MSA) slew, using the precession behaviour of a spinning prolate spacecraft.…”

Slew Control of Prolate Spinners Using Single Magnetorquer

“…= angular momentum of spacecraft, that in reference inertial/spacecraft-fixed body coordinates, that after H t = the first actuation, that at end of the slew, and the target angular momentum, N · ms I, I z , I t = spacecraft moment of inertia matrix, moment of inertia of transverse axis/spin axis, kg · m 2 k = rotation number around spin axis of the spacecraft m = magnetic moment of the magnetorquer dipole, A · m 2 T, T magnet = control torque/ magnetic torque applied to the spacecraft, N · m t 0 , t 1f , t 2s , t 2f , t 1;2 , Δt 2 , t E XISTING research [1][2][3][4][5] on the prolate spinning spacecraft attitude maneuver has developed a series of slew algorithms using a single thruster in two categories: half-cone derived algorithms and pulse-train algorithms. Half-cone derived algorithms consist of half-cone (HC), multi-half-cone, dual-half-cone, extended half-cone, sector arc slew, and multisector arc slew, using the precession behavior of a spinning prolate spacecraft.…”

Modular Testbed for Spinning Spacecraft

“…Surrey Space Centre (SSC) has recently developed a testbed for a spin-stabilized spacecraft using a spherical air bearing platform. This testbed was initially targeted to be used as a real-time verification tool for the state-of-the-art slew control algorithms of prolate spinner [1][2][3]. This prolate spinner or spin-stabilized spacecraft was intended for the moon penetrator mission called MoonLITE [4].…”