Abstract. Air-core magnetotorquer-only attitude control system (ACS) for the low-cost, spin-stabilized ITASAT satellite is here described. ITASAT’s ACS has been tested by simulation with synthetic measurement data. The proposed closedloop ACS system is based on 3-axis attitude and angular rate estimates provided by an extended Kalman filter processing vector measurements from a Sun sensor and a...

The spin precession of binary black holes (BBHs) that originate from isolated high-mass stars is determined by the interplay phenomena such as tides, winds, accretion, common-envelope evolution, natal kicks, and stellar core-envelope coupling. In previous work, we identified regions parameter space may produce BBHs with large misalignments kicks high magnitudes three mechanisms - or inheritance...

A yo-yo-type wire-boom deployment system has been developed and flight tested on a sounding rocket mission. The goal of the work has been to validate a new mechanism that rapidly deploys wire booms from a spinning spacecraft. This work takes a theoretical system design and implements it in practical hardware. The limitations inherent in practical hardware necessitated new theoretical developmen...

Bliss and Crane (1965) and Linvill and Bliss (1966)* found considerable improvement in subject performance when tactually displayed letters were presented sequentially along a moving ticker-tape (Times Square) display rather than just a single stationary letter at a time. To study these tactile spatialtemporal interaction effects further, it was decided to test a different mode of stimulus patt...