WASHINGTON — An Ariane 6 efficiently launched a European climate satellite tv for pc Aug. 27 on the rocket’s first mission to geostationary orbit.
The Ariane 62 lifted off from the European spaceport at Kourou, French Guiana, at 4:11 p.m. Jap. The rocket’s higher stage deployed its payload, the MTG-I2 climate satellite tv for pc, right into a geostationary switch orbit 36 minutes later.
MTG-I2, constructed by Thales Alenia Area, is the third satellite tv for pc within the Meteosat Third Technology program of climate satellites developed by the European Area Company and Eumetsat. It joins MTG-I1, launched in 2022 on an Ariane 5, and MTG-S1, launched in 2025 on a Falcon 9.
This newest satellite tv for pc, like MTG-I1, carries a high-resolution imager to assist climate forecasting. Nonetheless, whereas MTG-I1 takes a full-disk picture of the Earth each 10 minutes, MTG-I2 will take photos of Europe and North Africa each 2.5 minutes. MTG-S1 carries atmospheric sounding devices.
“For us, the upcoming launch of the MTG-I2 satellite tv for pc is a extremely vital step ahead for climate monitoring throughout Europe,” mentioned Thomas Blackmore, science supervisor for area information merchandise and techniques at the UK Met Workplace, throughout a prelaunch briefing, citing the high-frequency photos it is going to present. “For forecasters, MTG-I2 is a bit like transferring from a sequence of snapshots to having one thing that’s a lot nearer to a dwell video stream from area.”
The satellite tv for pc, weighing 3.8 tons at launch, will function from 9 levels east in GEO. The spacecraft will take 10 to 12 days to achieve that slot in GEO from its switch orbit, mentioned James Champion, MTG venture supervisor at ESA, on the briefing.
It’s going to nonetheless take a number of months to fee the satellite tv for pc earlier than it enters service. Susanne Dieterle, MTG system supervisor at Eumetsat, mentioned it took 4 months to get the primary picture from MTG-I1. As a result of MTG-I2 is similar design, she mentioned, “we intend to do it faster.”
MTG-I2 completes the primary trio of satellites for the system. A second set of three satellites is being constructed now to be positioned into storage within the subsequent few years, mentioned Champion. They might launch across the mid-2030s until they’re wanted earlier to exchange a failed satellite tv for pc.
The launch was the fourth up to now this 12 months of the Ariane 6, after three launches of Amazon Leo satellites in February, April and June. It was the ninth flight of the rocket total, courting again to its inaugural flight in July 2024.
Nonetheless, this mission was the primary Ariane 6 flight to hold a payload to GEO, as earlier missions carried satellites sure for low or medium Earth orbits. Whereas the rocket’s predecessor, the Ariane 5, ceaselessly launched GEO missions, demand for GEO communications satellites has dropped due to shifting demand and the rise of LEO constellations.
Delays within the growth of Ariane 6 led Eumetsat to move MTG-S1 from Ariane 6 to Falcon 9 in 2024. Eumetsat referred to as that transfer pushed by “distinctive circumstances” and later reaffirmed its use of European launchers similar to Ariane 6 for future spacecraft.
“With its first mission to geostationary switch orbit, Ariane 6 has as soon as once more demonstrated its versatility and precision,” mentioned Christophe Bruneau, chief govt of ArianeGroup, the prime contractor for Ariane 6, in a press release after the launch. “This newest success confirms the launcher’s potential to fulfill the necessities of Europe’s most strategic area packages.”
Arianespace, which operates Ariane 6, has not disclosed the date or buyer of the car’s subsequent launch. Whereas the corporate is presently on a tempo of six launches this 12 months, an organization govt mentioned on the prelaunch briefing that the corporate would do extra.
“The goal for the 12 months stays unchanged. We goal seven to eight Ariane 6 launches earlier than the tip of the 12 months,” mentioned Caroline Arnoux, head of the Ariane enterprise unit at Arianespace. The corporate plans to extend its launch charge to 9 to 10 in 2027, she added.
