Aerobraking phase of ENVISION is critical in terms of duration and required operations. One limitation during aerobraking is the temperature reached on Multi Layer Insulation (MLI) due to the aerothermal heat flux.MLIs can withstand during short durations (intermittent exposure) higher temperatures than their steady state qualification temperature.

The use of higher frequencies is becoming necessary for supporting feeder links of High Throughput Telecom Satellites due to the larger bandwidths available. Q and V bands are now being considered as a baseline for next generation systems. The next step will be to look at W band. In order to understand the system sizing, it is necessary to have a good modelling of the propagation channel. So far no measurement campaign has been done, therefore it is needed to start characterizing the channel.

Microbial contamination is a generic risk concerning flight hardware degradation, Planetary Protection and potentially crew health. Material surface requires a proper control and monitoring of the microbial cleanliness level. Today, contact plates, swabs and wipes are used for surface sampling. Swabs and wipes samples include mandatory liquid transfer to further extract and detect microorganism. Today, automated miniaturized system, molecular-based, has been developed and offers the possibility to perform multiple laboratory functions on a complete integrated system (i.e.

Despite different attempts performed in the past two decades, Europe is lacking a competitive product for a large reflector with the requested TRL level to embark on a commercial program. Need is identified to cover antenna applications from 4 up to 18 meter and for frequencies from UHF up to Ka band.. American companies are leaders in this domain and are commercially dominating the worldwide market.