Fengyun-1C Debris: Legacy of the 2007 ASAT Test
Fengyun-1C was a Chinese weather satellite, part of the Fengyun (meaning 'Wind and Cloud') series operated by the China Meteorological Administration. Launched on 10 May 1999, it had the primary mission of providing meteorological data to improve weather forecasting capabilities.
What is Fengyun-1C?
Fengyun-1C was a Chinese weather satellite, part of the Fengyun (meaning 'Wind and Cloud') series operated by the China Meteorological Administration. Launched on 10 May 1999, it had the primary mission of providing meteorological data to improve weather forecasting capabilities. The satellite was part of China's effort to enhance its ability to monitor climate and environmental changes.
Mission and Purpose
The Fengyun-1C satellite was equipped with instruments designed to capture data on cloud cover, sea surface temperatures, and atmospheric conditions. This data was crucial for meteorological analysis and weather prediction. The satellite operated in a sun-synchronous orbit, allowing it to pass over the same part of the Earth at the same local time each day, which is ideal for consistent weather monitoring.
Orbital Characteristics
Fengyun-1C orbited the Earth at an altitude of approximately 865 kilometres with an inclination of 98.8 degrees. This sun-synchronous orbit allowed it to maintain a consistent path relative to the Sun, facilitating regular data collection. The satellite's NORAD ID was 25730, and it completed an orbit roughly every 102 minutes.
Significance and Legacy
Fengyun-1C became infamous not for its meteorological contributions, but for its role in the 2007 anti-satellite (ASAT) test conducted by China. On 11 January 2007, China intentionally destroyed the satellite using a kinetic kill vehicle, resulting in a massive debris field. This event significantly increased the amount of space debris in low Earth orbit, contributing over 3,000 trackable pieces of debris, which continue to pose collision risks to other satellites and the International Space Station. The test highlighted the vulnerabilities of space assets and led to international discussions on space security and debris mitigation.
Current Status
The debris from Fengyun-1C remains a persistent issue in the space environment. As of now, the debris is part of the 8,843 pieces of tracked debris in orbit. These fragments continue to be monitored for potential collisions, with close approaches regularly tracked by space agencies. For those interested in tracking the debris, Orbital Radar's Debris Map provides real-time data on the location and movement of these objects.
