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GNSS Expert
2015-04-17 16:04:48| Space-careers.com Jobs RSS
Serco is a FTSE 250 international service company that improves the quality and efficiency of essential services that matter to millions of people around the world. The work we do for national and local governments involves us in the most important areas of public services, including science and defence. Sercos space heritage over the last 40 years has placed us in the Space News Top 50 Space Industry Manufacturing and Services Companies. With over 1500 staff in the space business covering a wide spectrum of experience and skills, we convey best practice, expertise and innovation in our business. For our activities in ESOC, we are currently looking for two Mission Analysis Experts. Tasks and Responsibilities Definition, assessment and feasibility studies for terrestrial and interplanetary missions. Support to approved projects until launch. For specific questions, support is also given during the operational phase of the mission and for endoflife disposition of space systems. The activities in address all those aspects of a mission which are related to the launch or the orbit of a satellite and to some extent also to the attitude of a satellite. A few typical tasks are the following Launcher requirements Analysis of launcher trajectory and launcher performance Tradeoffs for the selection of the operational orbit Launch window analysis Short and longterm orbit evolution Lifetime calculation Orbit manoeuvres and navigation Accuracy of orbit determination Parameter estimation Calculation of propellant budgets Lowthrust trajectory optimization Analysis of geometrical events groundstation visibility, eclipse, sky coverage Operations planning and scheduling Optimization of scientific return Endoflife disposition. In order to perform the required studies a considerable amount of sophisticated software is needed. A primary task is the computation of the various terrestrial and planetary satellite orbits low earth, geostationary, highly eccentric, interplanetary trajectories and planetary orbiters. Depending on the type of orbits and the required accuracy, various numerical and analytical methods are used. Various additional information is needed pertaining to the spacecraft or to the ground, such as visibility periods from the groundstations, eclipse times or coverage by imaging instruments. In order to rationalize the effort many similar calculations for terrestrial or planetary satellites or interplanetary probes are performed using standard systems developed by the group over many years. Examples of these systems are USOC the Unified System for Orbit Computation that allows in an interactive manner to set up programs tailored to specific tasks by selecting automatically the required modules. INTNAV Interplanetary Navigation is a system used for the analysis of navigation accuracy and requirements. Both USOC and INTNAV have a Graphical User Interface based in TclTk. LOTNAV Has the same purpose as INTNAV but when low thrust is used. DITAN Generation and optimisation of low thrust trajectories MANTRA High fidelity and flexible generation and optimisation of chemical propulsion and low thrust trajectories In HSOGFA numerous standalone programs are in use for the solution of various particular tasks, such as orbit determination, orbit control, orbital manoeuvres, optimization of rocket ascent trajectories, optimum acquisition of the operational orbit, optimization of mission performance, mission planning and reentry calculations. From the nature of tasks it is clear that the program system, as well as the individual programs, need rather frequently upgrading or modifications. Only in this way the particular requirements of a new mission can be satisfied. This flexibility has, of course, a strong impact on the program design and documentation. As new projects often require unconventional orbits andor very specific mission requirements, it is also necessary to introduce new analytical and numerical methods. Frequently new algorithms, solutions and auxiliary calculations are to be developed, either for a specific or general purpose. Such modules or programs can be incorporated in an easily accessible SW library. Design of proper interfaces, careful testing and the preparation of documentation is mandatory. Requirements In addition to a Master degree or equivalent, the key person should bring at least 4 years experience in the following fields in particular Mathematical and stochastic methods and processes Classical and Celestial Mechanics Spacecraft Dynamics Applied Mathematics Relevant Space Environment modelling Relevant satellite systemspayload e.g. AOCS, star trackers, propulsion control Satellite Tracking techniques Software Engineering Orbit dynamics Orbit determination and prediction Operations support for flight dynamics. Satellite tracking data processing techniques Detailed relevant technical background emphasis depending on work specifics The skills required for tasks related to operations shall be knowledgeable of the capabilities and limitations of the operational Software well trained in following the operational procedures for nominal and contingency scenario quick, high quality responses to situations arising during critical operations, including quasirealtime modifications of the operational software knowledgeable of the software as experts experienced in use of that software in operations are required available with a mix of different relevant experience in development and operations The underlying programming, verification and documentation activities will be performed by software engineers with a background on, based at ESOC. Application procedure Important All applicants must hold a current valid work permit for Germany or be EU nationals. Important All applicants must hold a current valid work permit for Germany or be EU nationals. Due to the high interest these roles generate, Serco reserves the right to commence, alter or conclude the recruitment process prior to the closing date. If shortlisted, a recruiter will contact you directly. You can also login at any time to apply to additional positions. Data Protection By submitting a job application you agree to the storage of any personal data provided by you directly or collected from generally accessible sources in particular professional and other social media throughout the entire application process CV, references, letter of application, interviews as applicable. To facilitate subsequent contact for professional purposes only, you agree to your data being saved after the application process has ended. You may revoke your consent to this agreement at any time. The same shall also apply if you are contacted by SERCO GROUP regarding vacancies that match your existing profile. If you are interested in this vacancy, and think you have the skills and experience required, please apply via the relevant link available in our corporate careers website httpwww.serco.comcareersindex.asp If you have any question regarding this position please email space.careersserco.com Position 2x Mission Analysis Expert Reference G015089ESOC Application closing date 19.05.2015 Start date January 2016 If you are not yet registered with Serco we advise you to register your details by adding your details and attaching your CV via httpswww.amris.comsercoalertssignupform.php For additional information about Serco Group please consult our website www.serco.com For additional information about Serco Europe please consult our website www.serco.comeurope For additional information about ESOC, please consult httpwww.esa.intAboutUsESOC
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