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Internal Research Fellow PostDoc in Modelling of Autonomous Target of Opportunity Operations

2017-09-27 12:12:10| Space-careers.com Jobs RSS

Research Fellowship Opportunity in the Directorate of Operations. ESA is an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. Applications from women are encouraged. Post Internal Research Fellow PostDoc in Modelling of Autonomous Target of Opportunity Operations This post is classified F2. Location ESOC, Darmstadt, Germany Our Division and Mission The postholder will be based at the Operations Department at ESOC and will work for two Divisions in particular The Astronomy and Fundamental Physics Mission Division OPSOA, responsible for the definition and preparation of operational ground segment and the execution of astrophysics and fundamental physics missions. This includes, on the one hand, defining requirements for the ground segment needed for individual missions and verifying correct implementation on the other hand, planning and executing all mission operations from launch to endofmission. The Division covers a variety of missions which are either in preparation, like Euclid, or in operations phase, like XMMNewton, INTEGRAL and Gaia. XMMNewton, for example, is an Xray observatory that combines the largest mirror assembly ever flown with advanced detector technology such as CCD cameras and highresolution grating spectrometers together with an optical monitor. It observes cosmic objects like black holes, active galaxies and supernova remnants. The Studies and Special Projects Division OPSOS, responsible for Definition Phase studies for ESA missions and managing services provided to external customers. It also prepares and executes specific special projects, developing innovative operation concepts and technologies for future missions and coordinating cooperative activities with Member States in the flight operations field. The research topic of this vacancy falls under the joint responsibility of OPSOA and OPSOS, since the topic benefits from input from future missions and longterm experience from current ESOCoperated missions. As such, it will be supervised jointly by both Divisions. It is also expected that interaction with ESTEC projects, Science Operations and industry may be required. Candidates interested are encouraged to visit the ESA website www.esa.int Fields of activitiesresearch Modelling of incremental increase of autonomous Target of Opportunity operations ToO for astrophysical missions and its implications for exploration mission operations. Target of Opportunity ToO operations are a classic mission operations topic applicable to different types of astronomy mission. Execution of ToOs currently involves various operational software systems that need to be used to evaluate, replan, reorganise and execute unplanned operations requests at short notice. Similar issues also exist for other mission families. This study aims to evaluate different options for an incremental increase of autonomy in the full endtoend process, eventually including all mission data system components i.e. SOC, MOC FCT, MPS, FDS as well as ground stations and satellite systems. A concept and suitable mathematical computer models will be developed for this purpose. As a first test case, the model could then be applied to an AthenaXIPE ToO study or other suitable missions. Experience from other missions like Swift and INTEGRAL, which have implemented partially automated ToO operations, might also be used as a baseline for further gradual automation of spacecraft andor ground processes. This could ultimately lead to a fully autonomous decisionmaking process triggered by an external ToO andor, potentially, an onboard allsky monitor. The models developed could be initially tested on existing operational SC and subsystem hardware simulators, which currently do not include ToO functionality, with the aim of acting as a development environment for future simulators. The research should also take into consideration integrating a crowd consortium groundsatellite network, analysing its feasibility and the potential reduction in reaction time for the ToO. Continuous interfacing between currently operated missions, future mission preparation and mission development down to spacecraft and ground subsystem level should support the growth of this study. Various iterations are intended to actively increase the flexibility and reliability of the models. The model finally developed should also attempt to address the fundamental practical limit to which the autonomous ToO can be reasonably implemented, based on resources and technical constraints, and trade off the various levels of autonomy achieved by each iteration. This could then, selectively, be followed up and more rigorously detailed by individual projects and Divisions. Technical competencies Knowledge relevant to the field of research Researchpublication record Ability to conduct research autonomously Breadth of exposure coming from past andor current researchactivities Interest in space and space research Ability to gather and share relevant information Background in one or more of the following domains solar systems science, astrophysics, space science Experience in mission, spacecraft andor payload operations Knowledge and experience of ground segment, simulators and early operations Mathematical software development Understanding of space system architectures Behavioural competencies Innovation Creativity Continuous Learning Communication Relationship Management Self Motivation Problem Solving CrossCultural Sensitivity Education Applicants should have recently completed, or be close to completion of a PhD or equivalent qualification in a related technical or scientific discipline, in particular Physics, Mathematics, Aerospace Engineering. Preference will be given to applications submitted by candidates within five years of receiving their PhD. Additional requirements Applicants should have strong mathematical and programming skills as well as some background in spacecraft operations and ground segment architecture. They should be system minded and preferably have experience in mission control systems, spacecraft simulators, mission planning systems and automation systems for mission operations. The working languages of the Agency are English and French. A good knowledge of one of these is required. Knowledge of another Member State language would be an asset. Other information For behavioural competencies expected from ESA staff in general, please refer to the ESA Competency Framework. The Agency may require applicants to undergo selection tests. The closing date for applications is 25 October 2017. In addition to your CV and your motivation letter, please add your proposal of no more than 5 pages outlining your proposed research in the additional documents field of the application information section. Candidates are asked to arrange for 3 reference letters, to be sent by the referees themselves, before the closing date to temp.htresa.int. Please ensure your name is mentioned in the subject of the email. If you require support with your application due to a disability, please email contact.human.resourcesesa.int. Please note that applications are only considered from nationals of one of the following States Austria, Belgium, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden, Switzerland, the United Kingdom and Canada and Slovenia as well as Bulgaria, Cyprus, Latvia, Lithuania, Slovakia as European Cooperating States ECS. Priority will first be given to candidates from underrepresented Member States. In accordance with the European Space Agencys security procedures and as part of the selection process, successful candidates will be required to undergo basic screening before appointment Apply HERE

Tags: research internal opportunity target

Internal Research Fellow PostDoc in Exobiology Research Coordination

2017-09-22 18:11:20| Space-careers.com Jobs RSS

Research Fellowship Opportunity in the Directorate of Human Spaceflight and Robotic Exploration Programmes. ESA is an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. Applications from women are encouraged. Post Internal Research Fellow PostDoc in Exobiology Research Coordination This post is classified F2. Location ESTEC, Noordwijk, The Netherlands Description The Science Department is responsible for the definition and coordination of the scientific research performed onboard of International Space Station ISS, other spaceflight platforms and ground based analogues within the SciSpacE element of the European Exploration Envelope Programme E3P. The overall scientific objectives of SciSpacE until 2024 are defined in 10 science roadmaps which were elaborated with the scientific community. Within the Science Department, the Biology and Environment Research Office is responsible for inputs to programmatic and strategic planning, and the endtoend science coordination of projects in the areas of Biology and Exobiology. Interested candidates are encouraged to visit the ESA website www.esa.int Fields of activitiesresearch Exobiology is an interdisciplinary field which addresses the processes leading to the origin of life, the limits of life and identifying the signs of past and present extraterrestrial life. ESA has a long history of providing flight opportunities in low earth orbit, as well as ground based analogues, to support Exobiology research. These includes the short duration space exposure experiments in the BIOPAN facility onboard of Foton capsule missions and long duration exposure using the EXPOSE platforms onboard ISS. The results of these flight experiments and associated ground based studies have provided key information of the survival of microorganisms in the space environment, aspects of panspermia, planetary protection issues and prebiotic chemistry in space and simulated planetary environments. A new set of Exobiology flight experiments are now under preparation for long duration space exposure onboard ISS which will examine changes in biological and chemical samples using in situ diagnostics, as well as post flight analysis on returned samples. The SciSpacE Astrobiology roadmap identifies the key research questions that the Exobiology community aims to address by 2024 using the research platforms available in the programme. The specific top level objectives of the roadmap include understanding the origins of life, understanding habitability and the limits of life, and understanding the signs of life. It is anticipated that studies addressing these objectives will not only provide fundamental science knowledge, but support the interpretation of results from other Exobiology related programmes within the agency such as the Exomars mission. The research fellow will engage in research in preparation and in support of the implementation of the SciSpacE Astrobiology roadmap including Closely work with the project scientist for selected Exobiology experiments to coordinate definition refinement of science requirements with the science teams, to support scientific testing during development of the flight experiment receive and analyse data during the experiment execution. Support the creation of research links and coordinate with the Exobiology science community for identification of research activities in support of the Astrobiology Roadmap objectives, particularly in the area of ground based analogues and simulation to complement the ISS experiments planned in SciSpacE Support the esablishment of the flight and analogue research capabilities needed to address the long term objectives beyond the current programme. Technical competencies Knowledge relevant to the field of research Researchpublication record Ability to conduct research autonomously Breadth of exposure coming from past andor current researchactivities Interest in space and space research Behavioural competencies Innovation Creativity Continuous Learning Communication Relationship Management Self Motivation Problem Solving CrossCultural Sensitivity Education Applicants should have recently completed, or be close to completion of a PhD in a research topic directly addressing Exobiology, for example microbiologybiology in extreme environments, chemistry or planetary science research relevant to astrobiology topics. Research experience with actual Exobiology flight experiments, studies in terrestrial analogue environments or laboratory simulations of planetary environments is a strong asset. Preference will be given to applications submitted by candidates within five years of receiving their PhD. Additional requirements Applicants should have good analytical skills and be able to work autonomously in a multicultural environment. The working languages of the Agency are English and French. A good knowledge of one of these is required. Knowledge of another Member State language would be an asset. Other information For behavioural competencies expected from ESA staff in general, please refer to the ESA Competency Framework. The Agency may require applicants to undergo selection tests. The closing date for applications is 19 October 2017. In addition to your CV and your motivation letter, please add your proposal of no more than 5 pages outlining your proposed research in the additional documents field of the application information section. Candidates are asked to arrange for 3 reference letters, to be sent by the referees themselves, before the closing date to temp.htresa.int. Please ensure your name is mentioned in the subject of the email. If you require support with your application due to a disability, please email contact.human.resourcesesa.int. Please note that applications are only considered from nationals of one of the following States Austria, Belgium, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden, Switzerland, the United Kingdom and Canada and Slovenia as well as Bulgaria, Cyprus, Latvia, Lithuania, Slovakia as European Cooperating States ECS. Priority will first be given to candidates from underrepresented Member States. In accordance with the European Space Agencys security procedures and as part of the selection process, successful candidates will be required to undergo basic screening before appointment Apply HERE

Tags: research internal fellow coordination

Internal Research Fellow PostDoc in OptoMechanical Structural Assessment of Space Systems

2017-09-21 13:11:04| Space-careers.com Jobs RSS

Research fellowship opportunity in the Directorate of Technology, Engineering and Quality. ESA is an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. Applications from women are encouraged. Post Internal Research Fellow PostDoc in OptoMechanical Structural Assessment of Space Systems This post is classified F2 on the Coordinated Organisations salary scale. Location ESTEC, Noordwijk, The Netherlands Description The Structures, Mechanisms and Materials Division is the centre of competence for the Agency in all areas related to spacecraft and launcher structures, mechanisms and materials and processes. This encompasses spacecraft and launcher lightweight structures, stable structures, structural dynamics, damage tolerance, deployable structuresbooms, active structures, holddown and release devices, electrical motors for space mechanisms, launcher and reentry vehicles, hot and cold structures, landing attenuation systems, seals, valves, parachute systems, separation systems, solar array drive mechanisms, reaction wheels, pointing mechanisms, pyrotechnics, bearings and tribology aspects, all materials and associated manufacturing processes as well as their development, characterization, verification and qualification and related failure investigations. The Division provides support to projects, preparatory programmes and technology programmes. Within this frame, the Structures Section is in charge of all structural engineering aspects. Interested candidates are encouraged to visit the ESA website related to the Divisions activities. Fields of activitiesresearch The proposed activity will involve integrating thermal, materials, mechanical, structural and optical domains into a multidisciplinary process with the aim of enabling a deterministic assessment of, for example, optical performance. The successful candidate will be assigned to the Structures Section and will work on the conception, analysis and development of analysis methodologies and software tools for optomechanical analysis and will work closely with mechanical, thermal, materials and optical engineers. In this context, the Research Fellow will be asked to participate in one or more of the following activities Structural modelling and analysis of optical components, optomechanical assemblies and optical payloads to assess structural integrity, dimensional stability and material selection for architecture downselect Thermoelastic structural analysis to evaluate the pointing control and stability, wave front error, coregistration and alignment of optical components and payloads Development of analysis software tools with a focus on optomechanical analysis Evaluation or benchmarking of relevant commercial software tools Support materials test programmes for the evaluation of the mechanical and thermal properties of optical materials, coatings and adhesives Support mechanical and optical test programmes, including the development and application of tools for mathematical model correlation between analytically predicted and experimentally validated optical alignment, coregistration and wavefront error. Technical competencies Ability to conduct research autonomously Breadth of exposure coming from past andor current researchactivities Researchpublication record Knowledge relevant to the field of research Interest in space and space research Ability to gather and share relevant information Behavioural competencies Innovation Creativity Continuous Learning Self Motivation Communication Problem Solving Relationship Management CrossCultural Sensitivity Education Applicants should have recently completed, or be close to completion of a PhD in mechanical engineering, with some background in the topics to be addressed e.g. structural analysis, materials, optics, mechanical and optical testing, software development. Preference will be given to applications submitted by candidates within five years of receiving their PhD. Additional requirements The candidate should have ideally participated in the design or development of ground or spacebased optical payloads or instrumentation. Some experience in the mechanical design, assembly, alignment and testing of optical instrumentation would be an asset. The Research Fellow must be able to work in a team with other international investigators in a spirit of positive cooperation and, at the same time, be capable of working autonomously in hisher area of research. At the end of the fellowship, the Research Fellow will be required to summarize the work completed in papers to be submitted to specialized conferencesjournals. The working languages of the Agency are English and French. A good knowledge of one of these is required. Knowledge of another Member State language would be an asset. Other information For behavioural competencies expected from ESA staff in general, please refer to the ESA Competency Framework. The Agency may require applicants to undergo selection tests. The closing date for applications is 19 October 2017. In addition to your CV and your motivation letter, please add your proposal of no more than 5 pages outlining your proposed research. Candidates must also arrange for three letters of reference to be sent by email, before the deadline, to temp.htresa.int. The letters must be sent by the referees themselves. The candidates name must be mentioned in the subject of the email. If you require support with your application due to a disability, please email contact.human.resourcesesa.int. Please note that applications are only considered from nationals of one of the following States Austria, Belgium, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden, Switzerland, the United Kingdom and Canada and Slovenia as well as Bulgaria, Cyprus, Latvia, Lithuania, Slovakia as European Cooperating States ECS. Priority will first be given to candidates from underrepresented Member States. In accordance with the European Space Agencys security procedures and as part of the selection process, successful candidates will be required to undergo basic screening before appointment Apply HERE

Tags: research systems space internal

Internal Research Fellow PostDoc in AOCS and Pointing Systems

2017-09-20 17:12:14| Space-careers.com Jobs RSS

Research Fellow opportunity in the Directorate of Technology, Engineering and Quality. ESA is an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. Applications from women are encouraged. Post Internal Research Fellow PostDoc in AOCS and Pointing Systems This post is classified F2 on the Coordinated Organisations salary scale. Location ESTEC, Noordwijk, The Netherlands Description Within the Systems Department, the GNC, AOCS and Pointing Division is responsible for Engineering and research and development of Attitude and Orbit Control Systems AOCS for satellites including Failure Detection Isolation Recovery FDIR Engineering and research and development of Guidance, Navigation and Control GNC systems for space vehicles including interplanetary cruise, aero assistance, precision landing, ascent, rendezvous and docking, reentry, formation flying and dragfree systems Technology development for AOCS and GNC sensors Endtoend engineering and research and development on high pointing accuracy systems Research and development of advanced control, estimation optimisation techniques and tools Development of control engineering standards in the frame of ECSS and ESA Standardisation Boards. Within the Division, the AOCS and Pointing Systems Section is specifically in charge of Designing and implementing Attitude and Orbit Control Systems AOCS for satellites and highaccuracy Pointing Systems Proposing and managing Mission Enabling Technology RD activities in the following areas Generic AOCS architecture Building Blocks Competitive Earth Observation, Telecom, Science AOCS associated FDIR High accuracy pointing Systems Technology development for AOCS sensors and electromagnetic actuators Research and development of advanced control techniques and tools Defining, maintaining and operating the necessary computing and laboratory facilities in support of the above activities. The section objectives more particularly related to the proposed Research Fellowship activities are highlighted in bold in the above list. Interested candidates are highly encouraged to visit the ESA website www.esa.int Fields of activitiesresearch Experimental validation of advanced active microvibration mitigation strategies. Attaining high pointing stability performance is a critical objective for many current and future space missions. As lineofsight stability requirements get tighter, mechanical vibrations become one of the key performance limiting factors. Commonly termed microvibrations, these lowamplitude disturbances span a wide frequency range from few Hz up to 1 kHz and are produced by a variety of mechanical and electrical spacecraft systems. Microvibrations can propagate, through the structure of the spacecraft, towards the various optical or communication systems severely degrading their performance. It is critical for mission success to design adequate vibration isolation systems that can minimize their impact. Pure passive isolators, such as the ones based on elastomeric materials, are the current baseline for microvibration mitigation to dampen highfrequency perturbations. Yet, passive isolation methods are limited in the lower part of the microvibration range and can be insufficient in terms of isolation performance. In order to overcome the frequency limitations of a purely passive approach and achieve broadband vibration isolation, the proposed research will focus on the design of a complementary active control strategy that primarly targets the lower range of the frequency perturbations such as the ones introduced by reaction wheels. In order to precisely tune these control strategies and guarantee both compliance with the mission pointing stability requirements and also safeguard against potential uncertainties or faults, accurate dynamic models of the endtoend system must be obtained. Mathematical models that reflect both the driving physical phenomena as well as uncertainties present in the system will be established and validated along the project. These models will supplement nonlinear simulations and capture the complex dynamic interactions between the microvibration sources, the isolation system, the spacecraft structural dynamics and the optical payload system. With this knowledge, a second objective of the study is to demonstrate the capabilities of a common unified framework in which system design, robust controller synthesis, parametric sensitivity and worstcase analysis can be rigorously performed using a common set of wellestablished mathematical tools. These analytical tools provide strong stability and endtoend performance guarantees in the face of uncertainty without relying on timeconsuming Monte Carlo simulations. In a natural way, adaptive control solutions with guaranteed stability and performance margins will be obtained by design. Finally, the project will lead to the development of an advanced experimental testbed that will serve as a validation platform for future microvibration control and high pointing stability research activities. Research Programme Specifics The Research Fellowship programme of work would be the following YEAR 1. Detailed problem Formulation, Requirements Capture, Model Identification and Setup of the Simulation and Experimental Platforms, Preliminary Controller Synthesis a Development of the simulation environment SimMechanics capturing the relevant dynamics of the experimental platform b From the physical high fidelity E2E model perform the derivation of adequate analysis and synthesis models that capture model uncertainties using a linear fractional representation c Model identification, validation and uncertainty quantification based on experimental results shall be performed via an experimental system identification campaign d Definition of performance and robustness objectives based on the physical limitations of the system. e Setup of the IQC robust analysis framework to validate and verify a given control law. f Baseline controller synthesis, experimental validation and comparative analysis of a series of classical vibration control algorithms. YEAR 2. Advanced Controller Synthesis and Fault Tolerant Design a development of modern robust control design methodology in order to synthesize a family of adaptive highperformance controllers for different levels of uncertainty b experimental demonstration and validation of the robust control laws for the plant subjected to different parametric variations. c Addition of Fault tolerant capabilities to the system. Implementation of FDI and reconfiguration mechanisms. Technical competencies Ability to conduct research autonomously Breadth of exposure coming from past andor current researchactivities Researchpublication record Knowledge relevant to the field of research Interest in space and space research Ability to gather and share relevant information Behavioural competencies Innovation Creativity Continuous Learning Self Motivation Communication Problem Solving Relationship Management CrossCultural Sensitivity Education Applicants must have recently completed, or be close to completion of a PhD in a related technical or scientific discipline, preferably Control Engineering. Preference will be given to applications submitted by candidates within five years of receiving their PhD. Additional requirements Applicants should have good analytical skills and be able to work in a multicultural environment in an autonomous manner. Applicants should have a methodical approach to their work and the ability to clearly document their work and results. The working languages of the Agency are English and French. A good knowledge of one of these is required. Knowledge of another Member State language would be an asset. Other information For behavioural competencies expected from ESA staff in general, please refer to the ESA Competency Framework. The Agency may require applicants to undergo selection tests. The closing date for applications is 18 October 2017. In addition to your CV and your motivation letter, please add your proposal of no more than 5 pages outlining your proposed research. Candidates must also arrange for three letters of reference to be sent by email, before the deadline, to temp.htresa.int. The letters must be sent by the referees themselves. The candidates name must be mentioned in the subject of the email. If you require support with your application due to a disability, please email contact.human.resourcesesa.int. Please note that applications are only considered from nationals of one of the following States Austria, Belgium, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden, Switzerland, the United Kingdom and Canada and Slovenia as well as Bulgaria, Cyprus, Latvia, Lithuania, Slovakia as European Cooperating States ECS. Priority will first be given to candidates from underrepresented Member States. In accordance with the European Space Agencys security procedures and as part of the selection process, successful candidates will be required to undergo basic screening before appointment Apply HERE

Tags: research systems internal fellow

Internal Research Fellow PostDoc in modelbased Verification Validation of autonomous systems

2017-09-20 17:12:14| Space-careers.com Jobs RSS

Tags: research systems internal fellow

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Internal Research Fellow PostDoc in Modelling of Autonomous Target of Opportunity Operations

2017-09-27 12:12:10| Space-careers.com Jobs RSS

Internal Research Fellow PostDoc in Exobiology Research Coordination

2017-09-22 18:11:20| Space-careers.com Jobs RSS

Internal Research Fellow PostDoc in OptoMechanical Structural Assessment of Space Systems

2017-09-21 13:11:04| Space-careers.com Jobs RSS

Internal Research Fellow PostDoc in AOCS and Pointing Systems

2017-09-20 17:12:14| Space-careers.com Jobs RSS

Internal Research Fellow PostDoc in modelbased Verification Validation of autonomous systems

2017-09-20 17:12:14| Space-careers.com Jobs RSS

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