Orion European Service Module (ESM) development, integration and qualification status

Abstract

ESA and the European Industry are supplying the European Service Module for Orion. An overview of the system and subsystem configuration of the Orion European Service Module (ESM) as designed and built for the EM-1 mission is provided as well as an outline of its development, assembly, integration and verification process performed by ESA and NASA in coordination with their respective Industrial prime contractors, Airbus Defence and Space and Lockheed Martin.

Model predictive control for formation reconfiguration exploiting quasi-periodic tori in the cislunar environment

“…In particular, a mass of 25 855 kg, corresponding to the full wet mass of the spacecraft, is considered. Also, limited thrust capabilities are planned for the analyzed scenario: it is assumed that only auxiliary thrusters are available for the maneuvers, and that only half of them (four) are active, delivering a total thrust of 4×490 N [22]. The combination of high mass and low thrust provides an overall acceleration of 0.076 m s −2 , and represents a worst-case scenario, to guarantee the effectiveness of the developed control scheme in any spacecraft condition.…”

Model Predictive Control for formation reconfiguration exploiting quasi-periodic tori in the cislunar environment

“…In particular, a mass of 25 855 kg, corresponding to the full wet mass of the spacecraft, is considered. Also, limited thrust capabilities are planned for the analyzed scenario: it is assumed that only auxiliary thrusters are available for the maneuvers, and that only half of them (four) are active, delivering a total thrust of 4×490 N [28]. The combination of high mass and low thrust provides an overall acceleration of 0.076 m s −2 , and represents a worst-case scenario, to guarantee the effectiveness of the developed control scheme in any spacecraft condition.…”