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Kepler Communications opens launch bids for Gen-1 LEO constellation - SpaceNews.com, aug 2018
"Kepler Communications announced Aug. 28 it is accepting bids from launch providers to orbit its first-generation constellation of up to 15 cubesats, but with the stipulation that the launches must happen within two years."

"Kepler plans to operate 140 satellites in low Earth orbit to provide Internet of Things connectivity to devices on the ground and to act as a relay network for other satellites by using intersatellite links. Mitry said Kepler intends to scale up fast, with the Gen-1 constellation in service by late 2020 or early 2021, a second generation of up to 50 satellites by the end of 2021, and the full 140-satellite constellation operational by the end of 2022. "

"Kepler has yet to sign a manufacturing agreement for the full 140 satellite constellation."

"Each satellite will have a mass of 12 to 15 kilograms ... the Gen-1 satellites will be slightly heavier than the prototypes because those lack intersatellite links"

"Kepler has also yet to determine if its fleet will have on-board propulsion, he said. From an altitude between 520 and 600 kilometers, Kepler’s satellites will have a design life of three to five years, he said. "
Kepler  NGSO  launch  satellite  IoT 
august 2018 by pierredv
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