<h2>AAS 95-414</h2><h2>Annihilation of Transverse Velocity Bias During Spinning-Up Maneuvers</h2><h4>R. A. Beck and J. M. Longuski,  Purdue University, West Lafayette, IN</h4><h2> Abstract </h2>During spinning-up maneuvers of a spacecraft, the spin thrusters can produce a finite transverse velocity offset or bias in the plane perpendicular to the spin axis.  A two-burn scheme is introduced to eliminate this offset.  The fundamental transcendental equation for the velocity two-burn scheme is of the same form as Kepler's equation.  The relationship between the velocity transcendental equation and Kepler's equation is investigated.  Numerical results demonstrate the effectiveness of the two-burn scheme.<br><br>