BETsMA is a software dedicated to the preliminary mission analysis of deorbit missions with bare electrodynamics tethers, i.e. to bring back to the Earth the satellite at the end of its live. Its friendly-user interface makes BETsMA an ideal tool for non-expert engineers on tethers, who need  a fast but accurate estimation of the parameters of  the mission. It includes a  tool  to makes optimal tether design and a detailed flight simulator. Its intuitive interface, fast algorithms and thorough  set of outputs, including  evolution of the orbital parameters, deorbit time, tether electrical  values along the deorbiting,  and survival probability among others, make BETsMA a unique tool. The interface and the visualization  tool is designed to carry out parametric studies in a broad  range of conditions.

“The user-friendly interface of BETsMA gives a fast an accurate response to the main issues related to deorbit satellite missions with bare electrodynamics tethers ” 

• Space industry is threaten by 6000 tons of space debris, which now  causes, in average, one collision each decade.
• Due to next launches, the Low-Earth-Orbit (LEO) satellite population will increase, thus making worse  the space debris problem.
•  ESA and NASA analyses suggest that, even without new launchies, the number of objects will grow due to collisions.
• Recommendations and responsabilities has been approved to remediate the space debris problem. New ones will be soon implemented by goverments and space agencies.
• A long term solution is to deorbit next launched  satellites and final rocket stages. It requires a deorbit  technology, which should be light, reliable and efficient at LEO.
• Space agencies look for disruptive technologies like tethers, which not only satisfy the above conditions but also are passive and do not need propellant neither batteries.
•  Non.specialized engineers on tethers technology require a user-friendly software to  carry out parametric analyses of deorbiting missions with tethers. These quantitative values can be used to  make comparisons with other technologies and  take decisions.

• More than one thousand satellites will be launched the next decade with a cost of manufacturing and launching about 150  billion €.
• A satellite failure due to a collision with  space debris produces both operational and economical losses, which can reach values about hundreds of million €.
• Decreasing the mass of the deorbit technology is crucial due to the high costs (1kg of launched mass is about 10000  €).
• Currently, there are 6000 tons of space debris. BETs Consortium estimate that the deorbit cost using  a tether could  be about 50%  smaller than  a chemical rocket.
•  Space agencies, companies and research groups are  potential clients of BETsMA, because they all need fast but accurate estimation of the tether system performances.

• BETsMA is the first  simulator  to be used by both expert and non-specialised engineers on tethers. 
• Its optimization tool, aimed at finding the tether geometry,  makes BETsMA an unique tool.
• Comprehensive software with a complete  catalogue of outputs, including the evolution of the orbital elements, the tether electrical variables, mass of all the subsystems, and survival probability among others.
•  User-friendly and intuitive interface and a visualization tool also  integrated in the program. They are design to carry out parametric analysis of tether missions.
• It includes the latest developments on tether flight  simulators like a detailed model for the current collection and an efficient orbit propagator.
• BETsMA manual gives a description of the implemented physical models and some mission examples to start with.

“Space agencies, companies and research groups need  a tool to design tether missions and calculate  their  costs”