Mar 27 2018

From The Space Library

RELEASE 18-019 NASA’s Webb Observatory Requires More Time for Testing and Evaluation; New Launch Window Under Review

NASA’s James Webb Space Telescope currently is undergoing final integration and test phases that will require more time to ensure a successful mission. After an independent assessment of remaining tasks for the highly complex space observatory, Webb’s previously revised 2019 launch window now is targeted for approximately May 2020.

“Webb is the highest priority project for the agency’s Science Mission Directorate, and the largest international space science project in U.S. history. All the observatory’s flight hardware is now complete, however, the issues brought to light with the spacecraft element are prompting us to take the necessary steps to refocus our efforts on the completion of this ambitious and complex observatory,” said acting NASA Administrator Robert Lightfoot.

Testing the hardware on the observatory’s telescope element and spacecraft element demonstrate that these systems individually meet their requirements. However, recent findings from the project’s Standing Review Board (SRB) indicate more time is needed to test and integrate these components together and then perform environmental testing at Northrop Grumman Aerospace Systems in Redondo Beach, California, the project’s observatory contractor.

NASA is establishing an external Independent Review Board (IRB), chaired by Thomas Young, a highly respected NASA and industry veteran who is often called on to chair advisory committees and analyze organizational and technical issues. The IRB findings, which will complement the SRB data, are expected to bolster confidence in NASA’s approach to completing the final integration and test phase of the mission, the launch campaign, commissioning, as well as the entire deployment sequence. Both boards’ findings and recommendations, as well as the project’s input, will be considered by NASA as it defines a more specific launch time frame. NASA will then provide its assessment in a report to Congress this summer.

NASA will work with its partner, ESA (European Space Agency), on a new launch readiness date for the Ariane 5 vehicle that will launch Webb into space. Once a new launch readiness date is determined, NASA will provide a cost estimate that may exceed the projected $8 billion development cost to complete the final phase of testing and prepare for launch. Additional steps to address project challenges include increasing NASA engineering oversight, personnel changes, and new management reporting structures.

This is a pivotal year for Webb when the 6.5-meter telescope and science payload element will be joined with the spacecraft element to form the complete observatory. The spacecraft element consists of the tennis-court-sized sunshield, designed by Northrop Grumman, and the spacecraft bus, which houses the flight avionics, power system, and solar panels. Because of Webb’s large size, engineers had to design components that fold origami-style into the Ariane 5 rocket’s fairing configuration.

Webb has already completed an extensive range of tests to ensure it will safely reach its orbit at nearly one million miles from Earth and perform its science mission. As with all NASA projects, rigorous testing takes time, increasing the likelihood of mission success.

“Considering the investment NASA and our international partners have made, we want to proceed systematically through these last tests, with the additional time necessary, to be ready for a May 2020 launch,” said Thomas Zurbuchen, associate administrator for NASA’s Science Mission Directorate.

After the successful test performance of Webb’s telescope and science payload in 2017 at NASA’s Johnson Space Flight Center in Houston, the telescope element was delivered to Northrop Grumman earlier this year. Both halves of the 13,500-pound observatory now are together in the same facility for the first time.

The spacecraft element will next undergo environmental testing, subjecting it to the vibrational, acoustic and thermal environments it will experience during its launch and operations. These tests will take a few months to complete. Engineers then will integrate and test the fully assembled observatory and verify all components work together properly.

Webb is an international project led by NASA with its partners, ESA and the Canadian Space Agency. ESA is providing the Ariane 5 as part of its scientific collaboration with NASA.

The James Webb Space Telescope will be the world’s premier infrared space observatory and the biggest astronomical space science telescope ever built, complementing the scientific discoveries of NASA’s Hubble Space Telescope and other science missions. Webb will solve mysteries of our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it.

RELEASE 18-018 Be a Flight Director: NASA Accepting Applications for Mission Control Leaders

How would you like to sit at the helm of human spaceflight, responsible for the success of missions and the highly trained teams of engineers and scientists that make them possible? NASA is hiring new flight directors for just this job at its mission control at Johnson Space Center in Houston.

“Flight directors play a critical role in the success of our nation’s human spaceflight missions,” said Brian Kelly, director of Flight Operations at Johnson. “The job is tough, the responsibilities are immense, and the challenges can seem insurmountable. But the experiences and personal rewards are incredible.”

Those chosen will lead human spaceflight missions involving the International Space Station, including integrating American-made commercial crew spacecraft into the fleet of vehicles servicing the orbiting laboratory, and Orion missions to the Moon and beyond.

They will head teams of flight controllers, research and engineering experts, and support personnel around the world, and make the real-time decisions critical to keeping NASA astronauts safe in space.

“NASA’s missions require strong, creative leaders as human spaceflight continues to evolve,” said Holly Ridings, acting chief of the Flight Director Office at Johnson. “We are looking for a mix of people with diverse backgrounds to play this critical role and add strength to our flight director team.”

To apply, flight director candidates must be U.S. citizens with a bachelor’s degree from an accredited institution in engineering, biological science, physical science, computer science or mathematics. They also will need substantial related, progressively responsible professional experience, including time-critical decision-making experience in high-stress, high-risk environments. Although many flight directors have previously been NASA flight controllers, it is not a prerequisite to apply.

Qualifying U.S. citizens have until April 17, to submit their applications at: https://www.usajobs.gov/GetJob/ViewDetails/494941200

The agency expects to announce final selections in mid-2018, after which those selected will receive extensive training on flight control and vehicle systems, as well as operational leadership and risk management.