Table 1.

Summary of CO₂eq emissions for a representative set of X-IFU meetings: Consortium meetings, project manager meetings, face-to-face topical meetings, key personnel travels, participation to conferences and finally travels by consortium partners to Toulouse for integrating the X-IFU models to CNES (Toulouse)

Meeting type	CO2eq (tons)
Consortium meeting (120 attendees, current, one per year, up to 2023)	60
Consortium meeting (240 attendees, max, one per year, 2024 up to 2029)	120
Project manager meetings at CNES (30 attendees, 2 per year, up to 2029)	30
Topical face-to-face meetings (10 people, 10 per year, up to 2029)	95
Additional travels by 10 key consortium members (10 per year, up to 2029)	100
Participation to international conferences (up to 2029)	120
Total travel emission per year	405 – 465
Travels to CNES for the integration of X-IFU instrument models	450
Integrated travel footprint (2015-2029)	7000

This covers the period onwards up the delivery of the flight model of the X-IFU. These numbers should be considered as maximum values, against which reduction measures are to be applied