With weather at 80 percent go for launch and everything proceeding as planned, optimism and enthusiasm were high at Monday morning’s Ascent Abort-2 flight test preview news conference at Kennedy Space Center in Florida.
“We are incredibly excited,” said Jenny Devolites, Ascent Abort-2 crew module manager and test conductor. “It’s such an honor to be a part of this activity and to have this opportunity.”
The Ascent Abort-2 flight test of the launch abort system for NASA’s Orion spacecraft, featuring a test version of the crew module, will lift off from Space Launch Complex 46 at Cape Canaveral Air Force Station Tuesday, July 2. The four-hour launch window opens at 7 a.m. EDT. NASA TV will broadcast launch activities, starting at 6:40 a.m. A postlaunch briefing is scheduled for approximately two hours after launch. Audio of this briefing will stream live on the agency’s website.
Orion will help pave the way for Artemis missions with astronauts to the Moon and then Mars.
“This test is extremely important,” said Mark Kirasich, Orion program manager. “Our Launch Abort System is a key safety feature of the spacecraft — it will protect the crew members who fly onboard Orion during the most challenging part of the mission, which is the ascent phase.”
Ascent Abort-2 will verify Orion’s abort system can pull the crew module away from an emergency during its ascent to space. The two main objectives: execute the abort by demonstrating it can be completed end to end, and collect key data. There are approximately 900 sensors — including temperature sensors, pressure sensors and microphones —located throughout the vehicle.
At liftoff, the booster will provide about 500,000 pounds of thrust. It will take 55 seconds to ascend to 31,000 feet, traveling more than 800 mph, at which point the abort will be initiated and the abort motor will ignite. Also igniting will be the attitude control motor, which provides steering.
Twenty-seven seconds after the abort, the jettison motor will ignite, pulling away the Launch Abort System from the crew module. The crew module will then free-fall and descend back to the ocean. As a backup communication system, 12 ejectable data recorders eject into the water in pairs. The highest altitude reached will be about 45,000 feet.
“It’s certainly a very exciting test for us tomorrow because it is so important,” NASA astronaut Randy Bresnik said. “The neat part is the next time this whole Launch Abort System flies, there will be crew underneath it in Artemis 2.”
NASA will host a preview news conference for the Ascent Abort-2 flight test of the launch abort system for NASA’s Orion spacecraft at 11:30 a.m. Monday, July 1, at NASA’s Kennedy Space Center in Florida. The flight test will help pave the way for Artemis missions with astronauts to the Moon and then Mars.
The launch and preview news conference will air on NASA TV and the agency’s website. Participants include:
Mark Kirasich, Orion program manager
Jenny Devolites, Ascent Abort-2 test conductor
Randy Bresnik, NASA astronaut
The blog will feature highlights from the preview news conference.
The AA-2 flight test’s four-hour launch window opens at 7 a.m. EDT Tuesday, July 2. A test version of the crew module will launch from Space Launch Complex 46 at Cape Canaveral Air Force Station in Florida. NASA TV coverage will begin at 6:40 a.m.
At an Orion Program Launch Readiness Review held June 28, the team preparing to launch Orion’s Ascent Abort-2 flight test gave a “go” to proceed to launch on Tuesday, July 2. Pending the outcome of a range readiness review to be held Monday, NASA is targeting the opening of a four-hour launch window at 7 a.m. EDT. Engineers will close out final operations at the launch pad over the weekend and on Monday to prepare for the test.
The Mobile Access Structure at Space Launch Complex 46 will be pulled back for the final time Tuesday morning before launch. Technicians had rolled it back earlier this week to perform end-to-end systems checkouts. The team also will temporarily pull it back on Monday to remove tape protecting sensors that will be used to collect data during the test.
NASA will hold an overview on the test at 11:30 a.m. Monday, which will air on NASA TV and the agency’s website.
On Monday, June 3 and Saturday, June 8, NASA launch teams, in coordination with U.S. Air Force and industry teams, held the first two of three dress rehearsals for the Ascent Abort-2 (AA-2) flight test at Hangar AE at Cape Canaveral Air Force Station in Florida. AA-2 will demonstrate the Launch Abort System (LAS) can quickly get astronauts safely away from the rocket in the event of a problem during launch.
During the daylong rehearsals, launch team managers simulated several countdowns, including a number of challenges for different team members to overcome. In one simulation, there was a lightning strike four miles from the pad. In another scenario, the launch director had to leave his station due to an illness, forcing his backup to immediately step in and take over the lead role.
The LAS is located at the very top of the rocket and has three motors working together to pull Orion away from the Space Launch System — NASA’s next generation rocket. Once activated, the LAS can steer the spacecraft and carry astronauts to a safe distance if an emergency arises during Orion’s climb to orbit.
Orion is designed to transport astronauts safely on deep space missions as NASA works to land the first woman and next man on the Moon by 2024.
Engineers rolled a test version of the Orion spacecraft integrated with the Launch Abort System for the Ascent Abort-2 flight test from Kennedy Space Center’s Launch Abort System Facility to Space Launch Complex 46 at Cape Canaveral Air Force Station in preparation for its launch this summer.
The 21.5 mile trek began around 6 p.m. on May 22, and finished at 3:18 a.m. on May 23. The team will be stacking all the AA-2 elements together at the launch pad over the next several weeks.
During the flight, planned for July 2, a test version of Orion will launch on a booster to more than six miles in altitude, where Orion’s launch abort system will pull the capsule and its crew away to safety if an emergency occurs during ascent on the Space Launch System rocket.
The test helps pave the way for Artemis missions at the Moon and will enable astronauts to set foot on the lunar surface by 2024.
The 46,000-pound flight test article that will be used for a test of Orion’s Launch Abort System (LAS) was lifted and mated to its transportation pallet inside the Launch Abort System Facility at NASA’s Kennedy Space Center in Florida on May 18, 2019. The flight test article includes the Orion test article, a separation ring created for this test, and the LAS. This operation marks the completion of the flight test article integration and checkout operations necessary for NASA’s Ascent Abort-2 (AA-2) flight test scheduled for July. Next, the system will roll to Pad 46 where the team will be stacking all the AA-2 elements together at the launch pad over the next several weeks.
AA-2 will demonstrate the abort system can activate, steer the spacecraft, and carry astronauts to a safe distance if an emergency arises during Orion’s climb to orbit as the spacecraft faces the greatest aerodynamic pressure during ascent. AA-2 is an important test to verify Orion’s design to safely carry astronauts on deep space missions as NASA works to land the first woman and next man on the Moon by 2024.
During the three-minute test, the LAS with the Orion test article will launch atop a booster from Space Launch Complex 46 at Cape Canaveral Air Force Station, to an altitude of about six miles and traveling at more than 1,000 mph. The abort motor will quickly whisk the crew module away from the booster, and the attitude control motor will maneuver the assembly into position to jettison the crew module. Test data from 890 sensors will be sent in real-time to ground sites as well as recorded on board by 12 data recorders. The 12 data recorders will eject from the crew module before Orion reaches the water and will be retrieved after the test.
With no astronauts on board, the test concludes after the data recorders are ejected and does not include parachutes or recovery of the test capsule. AA-2 is focused on testing Orion’s ability to abort during ascent, and NASA has already fully qualified the parachute system for flights with crew through an extensive series of 17 developmental tests and 8 qualification tests completed at the end of 2018.
The LAS was designed and built by NASA and Lockheed Martin with motors provided by Northrop Grumman and Aerojet Rocketdyne. NASA’s Orion and Exploration Ground Systems programs, contractors Jacob’s, Lockheed Martin and Northrop Grumman, in conjunction with the Air Force Space and Missile Center’s Launch Operations branch and the 45th Space Wing will perform flight operations for AA-2.