Recent Examples on the WebTwo rocket firings were required to circularize the orbit at an altitude of 357 miles, 100 miles above the International Space Station. William Harwood, CBS News, 10 Nov. 2021 Two rocket firings were required to circularize the orbit at an altitude of 357 miles, 100 miles above the International Space Station. William Harwood, CBS News, 10 Nov. 2021 Two rocket firings were required to circularize the orbit at an altitude of 357 miles, 100 miles above the International Space Station. William Harwood, CBS News, 10 Nov. 2021 That requires the spacecraft to use its own propulsion resources to circularize at an operational altitude over the equator. Eric Berger, Ars Technica, 10 Dec. 2021 Two rocket firings were required to circularize the orbit at an altitude of 357 miles, 100 miles above the International Space Station. William Harwood, CBS News, 10 Nov. 2021 Two rocket firings were required to circularize the orbit at an altitude of 357 miles, 100 miles above the International Space Station. William Harwood, CBS News, 10 Nov. 2021 Two rocket firings were required to circularize the orbit at an altitude of 357 miles, 100 miles above the International Space Station. William Harwood, CBS News, 10 Nov. 2021 Two rocket firings were required to circularize the orbit at an altitude of 357 miles, 100 miles above the International Space Station. William Harwood, CBS News, 10 Nov. 2021 See More