Missile Warning Satellites: Comprehensive Cost and Schedule Information Would Enhance Congressional Oversight, Report to Congressional Committees [open pdf - 2MB]
From the Highlights: "The U.S. Space Force plans to spend around $14.4 billion over the next 5 years to develop the Next Gen OPIR [Next Generation Overhead Persistent Infrared] system, comprised of satellites and a ground system to detect and track missiles, among other things. The Air Force experienced significant problems when it developed the predecessor to Next Gen OPIR--it was roughly 9 years late and cost more than three times its initial estimate. A report to the National Defense Authorization Act for Fiscal Year 2019 contained a provision for GAO [Government Accountability Office] to review Next Gen OPIR efforts. This report (1) identifies the challenges Next Gen OPIR acquisition efforts face and the extent to which the Space Force is addressing them, and (2) assesses the extent to which Next Gen OPIR capabilities will address missions supported by the current system. GAO reviewed program documentation, acquisition strategies, and Air Force and DOD acquisition guidance, and interviewed DOD officials. GAO assessed this information against acquisition and collaboration best practices. Information that DOD deemed to be sensitive has been omitted."
Government Accountability Office: http://www.gao.gov/