Design of a standard test and simulation assembly for a modular attitude and orbit control system (MACS): part III: annex 2, design documentation

A Standard test and simulation assembly (TSA) for a modular attitude and orbit control system (MACS) is defined. Its functional requirements, detailed specification and design are presented. The assembly consists of a commercial available minicomputer and a specificly designed front-end which interfaces with the AOCS via an OBDH-, MACS- and IEEE...

Comparison of the impact dispersion of unguided and guided sounding rockets with further evaluation of a velocity controlled rocket

A comparison is made between unguided rockets, attitude stabilized rockets and rockets with control of the horizontal velocity components, all with one or two stages. Special emphasis is placed on impact dispersion, which is treated analytically. The best system appears to be a two stage rocket with unguided first stage and velocity control on...

NLR contributions to Columbus Polar Platform ORU Thermal Control

This memorandum contains the original issues of the two NLR contributions to ESA Columbus Polar Platform (Phase B2) activities i.e. - COL-TN-PO-PF-TC-021: "ORU Thermal Control: Performance calculations & budget estimates". - COL-TN-PO-PF-TC-024: "ORU Thermal Control: Design and definition". The work has been carried out as subcontractor of...

Design of a standard test and simulation assembly for a modular attitude and orbit control system (MACS): part II: annex 1, formal specification

A standard test and simulation assembly (TSA) for a modular attitude and orbit control system (MACS) is defined. Its functional requirements, detailed specification and design are presented. The assembly consists of a commercial available minicomputer and a specificly designed front-end which interfaces with the AOCS via an OBDH-, MACS- and IEEE...

Some considerations concerning two-phase flow thermal bus systems for spacecraft

This memorandum presents some considerations concerning thermal bus systems for multihundred kilowatt thermal utilities for space platforms or space stations. The objectives are to assess the state of the art and to identify possible subjects for thermal engineering research. Based on this identification, possible subjects for future thermal...

Design of a standard test and simulation assembly for a modular attitude and orbit control system (MACS): part I: phase 1 study report

A standard test and simulation assembly (TSA) for a modular attitude and orbit control system (MACS) is defined. Its functional requirements, detailed specification and design are presented. The assembly consists of a commercial available minicomputer and a specificly designed front-end which interfaces with the AOCS via an OBDH-, MACS- and IEEE...

Design of a standard test and simulation assembly for a modular attitude and orbit control system (MACS): part IV: annex 3, acceptance testplan

A Standard test and simulation assembly (TSA) for a modular attitude and orbit control system (MACS) is defined. Its functional requirements, detailed specification and design are presented. The assembly consists of a commercial available minicomputer and a specificly designed front-end which interfaces with the AOCS via an OBDH-, MACS- and IEEE...