Intensive training for Mars voyage

March 9, 2016
Simulations are a crucial aspect of launch preparations at ESOC. The main objective of the simulation campaign is to train the permanent Flight Control Team together with other support teams that join it during the intensive launch campaign; these include teams from flight dynamics, ground systems, the satellite manufacturer and the project team from ESTEC. Together, these are trained into a single, integrated Mission Control Team focusing on time-critical Launch and Early Orbit Phase as well as contingency operations. Credit: ESA

With just days to go before the departure of ExoMars, mission teams are in the final stages of their months-long training that ensures everyone knows their job the moment the mission comes alive.

The ExoMars 2016 mission is set for launch at 09:31 GMT (10:31 CET) on 14 March from Baikonur Cosmodrome in Kazakhstan on a powerful Proton rocket, marking the start of a seven-month cruise to the Red Planet.

ExoMars is a joint endeavour between ESA and Russia's Roscosmos space agency, and comprises the Trace Gas Orbiter (TGO) and the Schiaparelli entry, descent and landing demonstrator.

TGO will make a detailed inventory of Mars' atmospheric gases, with particular interest in rare gases like methane, while Schiaparelli will demonstrate a range of technologies to enable a controlled landing on Mars for the 2018 rover mission.

The complex and challenging mission will be operated by teams at ESA's ESOC control centre in Darmstadt, Germany, where, after months of simulations covering all phases of the journey to Mars, training is in the final, intensive phase.

Working in tight coordination

For any new mission flown from ESOC, diverse teams of European specialists provide a unique mix of expertise, all working in tight coordination toward the precise moment when a just-launched spacecraft 'wakes up' in space. 

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Animation visualising milestones during the launch of the ExoMars 2016 mission and its cruise to Mars. The mission comprises the Trace Gas Orbiter and an entry, descent and landing demonstrator module, Schiaparelli, which are scheduled to be launched on a four-stage Proton-M/Breeze-M rocket from Baikonur during the 14–25 March 2016 window. About ten-and-a-half hours after launch, the spacecraft will separate from the rocket and deploy its solar wings. Two weeks later, its high-gain antenna will be deployed. After a seven-month cruise to Mars, Schiaparelli will separate from TGO on 16 October. Three days later it will enter the martian atmosphere, while TGO begins its entry into Mars orbit. Credit: ESA/ATG medialab

"While we'll be monitoring TGO's liftoff and the boost phase very closely, in fact, for us, the most critical moment occurs after the spacecraft separates from the launcher upper stage, when it sends its first signals," says ExoMars Spacecraft Operations Manager Peter Schmitz.

"That's the moment we've been training months for, when we establish contact, receive the first onboard status information and can start sending telecommands. That's when we'll have a mission."

Acquisition of first signal – AOS – is expected at 21:28 GMT (22:28 CET) on 14 March, just 12 hours after liftoff.

The separation of the payload fairing during the ExoMars 2016 launch sequence. The Trace Gas Orbiter and the Schiaparelli entry, descent and landing demonstrator module can be seen as the fairing falls away. Credit: ESA/ATG medialab

It takes a team of teams

Peter and the 14-strong Flight Control Team will be supported by additional experts from across the centre and the project team at ESA's ESTEC technical centre in the Netherlands, providing specialised knowledge and capabilities in areas such as deep-space mission operations, flight dynamics, ground stations and software and systems.

Since November 2015, training for ExoMars has included more than 20 simulation sessions, in which teams sit in the control rooms, paced through every phase of the TGO , especially the launch and early orbits and the initial commissioning and cruise to Mars.

Flight dynamics experts at our ESOC operations centre work on every ESA mission, from those in very low orbits, like Swarm and CryoSat, to those exploring our Solar System, like Rosetta and ExoMars. They are involved from the first steps of a mission’s conception to the last command sent. Credit: ESA/J. Mai

Additional simulations are planned during the interplanetary journey, focusing on critical activities such as the mid-course trajectory correction, Schiaparelli's separation and the TGO's insertion into Mars  orbit.

"Training is a challenge for everyone, as it's meant to be," says Flight Director Michel Denis.

"It could be that an unforeseen problem requires a quick reaction, and this in turn requires excellent teamwork and that everyone is thoroughly familiar with his or her job.

"And these only come about through thorough in-depth and detailed planning, preparation and training."

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