Artemis I Launches For A Trip Around The Moon Scheduled For Saturday

After the launch was cleared Monday morning, the launch team spent the rest of the day evaluating data collected during the effort. Mission managers shared an update Tuesday afternoon. The Artemis I stack, which includes the Space Launch System rocket and the Orion spacecraft, continues to reside at Launchpad 39B at the Kennedy Space Center in Florida. One of the rocket’s four RS-25 engines, identified as engine #3, could not reach the proper temperature range required to start the engine during takeoff. Engines must be thermally conditioned before supercooled propellant leaks prior to start-up. To prevent the engines from experiencing temperature shocks, the launch controllers increase the pressure of the liquid hydrogen tank in the center stage to send some liquid hydrogen to the engines. This is known as “bleeding”. Liquid hydrogen is about minus 423 degrees Fahrenheit (minus 252 degrees Celsius). Mission managers suspected that engine problem #3 was actually a problem with the bleed system, rather than the actual engine. Several other issues, including thunderstorms, a leak in an 8-inch line used to fill and drain the liquid hydrogen core of the rocket’s core, and a hydrogen leak from a vent valve in the core tank also caused delays on Monday. morning that prevented takeoff during the two-hour launch window. “”We agreed on what was called the first option, which was to operationally change the loading process and start cooling our engine earlier. We also agreed to do some work on the pad to address the leak we saw in the hydrogen tail service mask in the umbilical,” said Mike Sarafin, Artemis mission manager, at NASA headquarters. The current forecast for Saturday includes a chance of showers and thunderstorms in the morning and early afternoon, so the launch team will be watching the forecast closely, said Marc Berger, launch meteorologist office with the US 45th Weather Force Squadron. There is a 60 percent chance of a weather violation during the launch window, Berger said. There is still a backup chance for the Artemis I mission to launch on September 5 as well. The Artemis I mission is just the beginning of a program that will aim to return humans to the moon and eventually land crewed missions on Mars.

title: “Artemis I Launches For A Trip Around The Moon Scheduled For Saturday Klmat” ShowToc: true date: “2022-11-14” author: “Clare Weber”

After the launch was cleared Monday morning, the launch team spent the rest of the day evaluating data collected during the effort. Mission managers shared an update Tuesday afternoon. The Artemis I stack, which includes the Space Launch System rocket and the Orion spacecraft, continues to reside at Launchpad 39B at the Kennedy Space Center in Florida. One of the rocket’s four RS-25 engines, identified as engine #3, could not reach the proper temperature range required to start the engine during takeoff. Engines must be thermally conditioned before supercooled propellant leaks prior to start-up. To prevent the engines from experiencing temperature shocks, the launch controllers increase the pressure of the liquid hydrogen tank in the center stage to send some liquid hydrogen to the engines. This is known as “bleeding”. Liquid hydrogen is about minus 423 degrees Fahrenheit (minus 252 degrees Celsius). Mission managers suspected that engine problem #3 was actually a problem with the bleed system, rather than the actual engine. Several other issues, including thunderstorms, a leak in an 8-inch line used to fill and drain the liquid hydrogen core of the rocket’s core, and a hydrogen leak from a vent valve in the core tank also caused delays on Monday. morning that prevented takeoff during the two-hour launch window. “”We agreed on what was called the first option, which was to operationally change the loading process and start cooling our engine earlier. We also agreed to do some work on the pad to address the leak we saw in the hydrogen tail service mask in the umbilical,” said Mike Sarafin, Artemis mission manager, at NASA headquarters. The current forecast for Saturday includes a chance of showers and thunderstorms in the morning and early afternoon, so the launch team will be watching the forecast closely, said Marc Berger, launch meteorologist office with the US 45th Weather Force Squadron. There is a 60 percent chance of a weather violation during the launch window, Berger said. There is still a backup chance for the Artemis I mission to launch on September 5 as well. The Artemis I mission is just the beginning of a program that will aim to return humans to the moon and eventually land crewed missions on Mars.

title: “Artemis I Launches For A Trip Around The Moon Scheduled For Saturday Klmat” ShowToc: true date: “2022-11-02” author: “Kathy Magee”

After the launch was cleared Monday morning, the launch team spent the rest of the day evaluating data collected during the effort. Mission managers shared an update Tuesday afternoon. The Artemis I stack, which includes the Space Launch System rocket and the Orion spacecraft, continues to reside at Launchpad 39B at the Kennedy Space Center in Florida. One of the rocket’s four RS-25 engines, identified as engine #3, could not reach the proper temperature range required to start the engine during takeoff. Engines must be thermally conditioned before supercooled propellant leaks prior to start-up. To prevent the engines from experiencing temperature shocks, the launch controllers increase the pressure of the liquid hydrogen tank in the center stage to send some liquid hydrogen to the engines. This is known as “bleeding”. Liquid hydrogen is about minus 423 degrees Fahrenheit (minus 252 degrees Celsius). Mission managers suspected that engine problem #3 was actually a problem with the bleed system, rather than the actual engine. Several other issues, including thunderstorms, a leak in an 8-inch line used to fill and drain the liquid hydrogen core of the rocket’s core, and a hydrogen leak from a vent valve in the core tank also caused delays on Monday. morning that prevented takeoff during the two-hour launch window. “”We agreed on what was called the first option, which was to operationally change the loading process and start cooling our engine earlier. We also agreed to do some work on the pad to address the leak we saw in the hydrogen tail service mask in the umbilical,” said Mike Sarafin, Artemis mission manager, at NASA headquarters. The current forecast for Saturday includes a chance of showers and thunderstorms in the morning and early afternoon, so the launch team will be watching the forecast closely, said Marc Berger, launch meteorologist office with the US 45th Weather Force Squadron. There is a 60 percent chance of a weather violation during the launch window, Berger said. There is still a backup chance for the Artemis I mission to launch on September 5 as well. The Artemis I mission is just the beginning of a program that will aim to return humans to the moon and eventually land crewed missions on Mars.

title: “Artemis I Launches For A Trip Around The Moon Scheduled For Saturday Klmat” ShowToc: true date: “2022-12-06” author: “Edmund Szeto”

After the launch was cleared Monday morning, the launch team spent the rest of the day evaluating data collected during the effort. Mission managers shared an update Tuesday afternoon. The Artemis I stack, which includes the Space Launch System rocket and the Orion spacecraft, continues to reside at Launchpad 39B at the Kennedy Space Center in Florida. One of the rocket’s four RS-25 engines, identified as engine #3, could not reach the proper temperature range required to start the engine during takeoff. Engines must be thermally conditioned before supercooled propellant leaks prior to start-up. To prevent the engines from experiencing temperature shocks, the launch controllers increase the pressure of the liquid hydrogen tank in the center stage to send some liquid hydrogen to the engines. This is known as “bleeding”. Liquid hydrogen is about minus 423 degrees Fahrenheit (minus 252 degrees Celsius). Mission managers suspected that engine problem #3 was actually a problem with the bleed system, rather than the actual engine. Several other issues, including thunderstorms, a leak in an 8-inch line used to fill and drain the liquid hydrogen core of the rocket’s core, and a hydrogen leak from a vent valve in the core tank also caused delays on Monday. morning that prevented takeoff during the two-hour launch window. “”We agreed on what was called the first option, which was to operationally change the loading process and start cooling our engine earlier. We also agreed to do some work on the pad to address the leak we saw in the hydrogen tail service mask in the umbilical,” said Mike Sarafin, Artemis mission manager, at NASA headquarters. The current forecast for Saturday includes a chance of showers and thunderstorms in the morning and early afternoon, so the launch team will be watching the forecast closely, said Marc Berger, launch meteorologist office with the US 45th Weather Force Squadron. There is a 60 percent chance of a weather violation during the launch window, Berger said. There is still a backup chance for the Artemis I mission to launch on September 5 as well. The Artemis I mission is just the beginning of a program that will aim to return humans to the moon and eventually land crewed missions on Mars.