MOSCOW, July 14 — The record of anti-satellite weapons testing over the past four decades shows a steady accumulation of orbital debris, with multiple nations contributing to the growing hazard in space. According to the verified data, the problem spans from the early Cold War period through the present day, with each test adding hundreds to thousands of trackable fragments to the orbital environment. The 2007 Chinese anti-satellite test destroyed the Fengyun-1C weather satellite at an altitude of 865 kilometers.
That single event created over 3,000 trackable fragments, according to the record, and an estimated 150,000 pieces larger than one centimeter. This test remains one of the most significant single contributions to the debris population in low Earth orbit.
Accidental Collisions and Deliberate Destruction
Not all orbital debris stems from intentional destruction. The 2009 collision between the operational Iridium 33 satellite and the defunct Russian Cosmos 2251 satellite generated over 2,000 trackable fragments. That event was an accidental collision between an active communications satellite and a derelict spacecraft — a stark demonstration of the risks posed by uncontrolled objects in orbit.
The source material also records the 2013 breakup of the Russian Briz-M upper stage, which added over 500 pieces to the debris field. That event was not a weapons test but a fragmentation of spent rocket hardware, further complicating the orbital environment.
National ASAT Programs
The United States conducted its own anti-satellite test in 1985, destroying the Solwind P78-1 satellite. That test, while early in the chronology, established a precedent that other nations would later follow. India conducted an ASAT test in 2019 under the name Mission Shakti, destroying the Microsat-R satellite at an altitude of 283 kilometers.
That test created over 400 fragments, according to the record. Russia conducted its own ASAT test in 2021, destroying the Cosmos 1408 satellite.
That event created over 1,500 trackable fragments.
Strategic Implications
The cumulative effect of these events, according to the record, has significantly increased the debris population in low Earth orbit. Fragments from these tests and collisions can drift into higher orbits over time, meaning the problem is not confined to the altitudes where the events occurred. The chronology shows that anti-satellite weapons have been tested by at least four nations — the United States, China, India, and Russia — over a period spanning from 1985 to 2021.
Each test has added to the debris field, and the record shows no indication that any nation has ceased development of such capabilities. The record stands as a sobering account of how military competition has extended into the orbital domain, with consequences that persist long after the tests themselves are complete.
Sources
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