The accident looked like a re Previous issues Webb faced. work. When the Webb Telescope was named in 2002, it had a projected budget of $1 billion to $3.5 billion for a launch in early 2010. When 2010 arrived, the launch date was moved to 2014 and the estimated cost of the telescope increased to $5.1 billion . . After reviews found that both the budget and schedule were unrealistic, in 2011 NASA revived the program with a much higher budget of just $8 billion and a start date of October 2018. For several years after the 2011 reset, the software seemed to be in good shape. “They are cutting milestones,” Mr Robinson said. “Really good table margin.” But he added, “Things happen where you don’t see. Ghosts always get you, don’t they?’ For the bolts that came off during the shock test, it turned out that the engineering drawings didn’t specify how much torque to apply. That was left up to the contractor, Northrop Grumman, to decide, and it wasn’t tight enough. “You have to have specifications to make sure it’s right,” Mr Robinson said. The review panel published its report, noted a number of issues and made 32 recommendations. Mr. Robinson said NASA followed them all. One recommendation was to conduct an audit of the entire spacecraft to detect “embedded problems” – errors that went unnoticed.
title: “Greg Robinson Reluctantly Repairs Nasa S James Webb Space Telescope " ShowToc: true date: “2022-12-11” author: “Eric Daniels”
The accident looked like a re Previous issues Webb faced. work. When the Webb Telescope was named in 2002, it had a projected budget of $1 billion to $3.5 billion for a launch in early 2010. When 2010 arrived, the launch date was moved to 2014 and the estimated cost of the telescope increased to $5.1 billion . . After reviews found that both the budget and schedule were unrealistic, in 2011 NASA revived the program with a much higher budget of just $8 billion and a start date of October 2018. For several years after the 2011 reset, the software seemed to be in good shape. “They’re cutting milestones,” Mr Robinson said. “Really good table margin.” But he added, “Things happen where you don’t see. Ghosts always get you, don’t they?’ For the bolts that popped during the shock test, it turned out that the engineering drawings didn’t specify how much torque to apply. That was left up to the contractor, Northrop Grumman, to decide, and it wasn’t tight enough. “You have to have specifications to make sure it’s right,” Mr Robinson said. The review panel published its report, noted a number of issues and made 32 recommendations. Mr. Robinson said NASA followed them all. One recommendation was to conduct an audit of the entire spacecraft to detect “embedded problems” – errors that went unnoticed.
