Q All aspects of aviation are dependent on Global Navigation, Positioning, and Timing Systems (GNPT systems). GNPT systems are in the background of every aviation operation and are vital to the aviation industry. Review the following resources: • Aviation System Block Upgrade (ASBU) framework - Uniting Aviation (ICAO) (Links to an external site.) • The Aviation System Block Upgrades (ICAO) (Links to an external site.) • What is Positioning, Navigation, and Timing (PNT)? (US Department of Transportation) (Links to an external site.) • ASBU Elements (ICAO) (Links to an external site.) • Positioning, Navigation, and Timing (CISA) (Links to an external site.) • Cybersecurity Profile for the Responsible Use of Positioning, Navigation, and Timing (CSRC) (Links to an external site.) • PNT Program (Department of Homeland Security) (Links to an external site.) Respond to the following prompt: Identify how each sector of aviation (airlines, airports, aircraft manufactures, air traffic control, space operations, and remotely piloted aircraft systems) obtains and uses Global Navigation, Positioning, and Timing Systems. Discuss the capabilities and limitations of Ground Based Augmentation Systems (GBAS), Satellite Based Augmentation Systems (SBAS), and Aircraft Based Augmentation Systems (ABAS) ________________________________________ Requirements for discussion posts: • Write a minimum of 200 words. • Use at least one outside reference source cited in current APA format. Requirements for discussion replies: • Respond to at least two of your classmates • Write a minimum of 100 words. • Use at least one outside reference for each response, cited in current APA format. Your initial post is due by Day 4, and you must respond to at least two of your classmates by Day 7. Be sure you understand the requirements and grading details for discussions in this course. Review the Discussion Guidelines for more detailed information and review the evaluation rubric for detailed grading criteria.