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\t\t\t\t\t\t18\/11\/2024<\/span> Marking a major milestone in the preparation of Copernicus Sentinel-1C for its scheduled 3 December liftoff, experts have completed the critical and hazardous process of fuelling the satellite.<\/p>\n Once in orbit, Sentinel-1C will extend the Sentinel-1 mission\u2019s legacy, delivering radar imagery to monitor Earth\u2019s changing environment to support a diverse range of applications and scientific research. Additionally, Sentinel-1C brings new capabilities for detecting and monitoring maritime traffic<\/p>\n<\/div>\n The satellite has been at Europe\u2019s Spaceport in Kourou, French Guiana, since early October, being tested and readied for its big day \u2013 the all-important launch on a Vega-C rocket. Notably, this launch marks Vega-C\u2019s return to flight, a key step in restoring Europe\u2019s independent access to space.<\/p>\n With over a month of preparations completed at the spaceport, the recent \u2018flight readiness review\u2019 along with the fact that the Vega-C rocket is being prepared, signalled authorisation to fuel the Sentinel-1C satellite.<\/p>\n<\/p><\/div>\n The European Space Agency\u2019s Project Manager for the Sentinel-1 mission, Ram\u00f3n Torres, said, \u201cThe launch campaign here in Kourou has gone very well and our thanks go to all the teams that have been involved.<\/p>\n \u201cThe first part of the campaign to launch Sentinel-1C complete and we are entering today the \u2018combined operations\u2019 part, which is carried out together with the Arianespace and Avio teams.<\/p>\n \u201cWith the satellite fully loaded with 154 kg of fuel, the next step will be to mate it with the launcher adapter and encapsulate them within the Vega-C rocket fairing in preparation for launch on 3 December.\u201d \u00a0<\/p>\n<\/p><\/div>\n Carrying advanced radar technology to provide an all-weather, day-and-night supply of imagery of Earth\u2019s surface, the ambitious Copernicus Sentinel-1 mission has raised the bar for spaceborne radar since the launch of Sentinel-1A back in 2014.<\/p>\n The mission is based on a constellation of two identical satellites flying in the same orbit but 180\u00b0 apart, to optimise global coverage and data delivery for Copernicus, the Earth observation component of the European Union\u2019s Space Programme, managed by the European Commission.<\/p>\n Addressing a temporary gap in coverage owing to Sentinel-1B unexpectedly going offline in 2022 owing to a technical issue, Sentinel-1C, along with its sibling Sentinel-1A, will return the mission to its full potential as a two-satellite constellation.<\/p>\n Sentinel-1A is then due to be replaced by Sentinel-1D later next year.<\/p>\n<\/p><\/div>\n The Sentinel-1 mission benefits numerous Copernicus services and applications such as those that relate to Arctic sea-ice monitoring, iceberg tracking, routine sea-ice mapping, glacier-velocity monitoring, surveillance of the marine environment including oil-spill monitoring and ship detection for maritime security as well as illegal fisheries monitoring.<\/p>\n It is also used for monitoring ground deformation resulting from subsidence, earthquakes and volcanoes, mapping for forest, water and soil management, and mapping to support humanitarian aid and crisis situations.<\/p>\n<\/p><\/div>\n Sentinel-1C and Sentinel-1D introduce new capabilities for detecting and monitoring maritime traffic, thanks to their integrated Automatic Identification System (AIS). This system comprises four onboard antennas designed to capture signals transmitted by ships, which include crucial details such as a vessel’s identity, location and direction of passage, enabling precise tracking.<\/p>\n A notable advantage of this radar-based monitoring is its ability to detect ships even if they are not broadcasting AIS signals. Such \u2018silent\u2019 vessels could potentially indicate illegal activity, prompting further investigation by maritime authorities. This enhanced functionality significantly strengthens efforts to ensure maritime safety and security.<\/p>\n<\/p><\/div>\n
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