On January 11, 2007, at 5:28 pm EST, the PRC conducted its first successful direct-ascent anti-satellite (ASAT) weapons test, launching a ballistic missile armed with a kinetic kill vehicle (not an exploding conventional or nuclear warhead) to destroy the PRC's Fengyun-1C weather satellite at about 530 miles up in low earth orbit (LEO) in space. The PLA conducted the test near China's Xichang Space Center in Sichuan province. The weapon under development was fired from a mobile transporter-erector-launcher (TEL). China reportedly used a two-stage, solid-fuel medium-range ballistic missile that was launched from a TEL. A U.S. intelligence official testified to Congress that the U.S. designation of this ASAT weapon is SC-19. A National Security Council spokesman issued the White House's public response on January 18, stating that "China's development and testing of such weapons is inconsistent with the spirit of cooperation that both countries aspire to in the civil space area." He stated that the PRC used a land-based, medium-range ballistic missile. He also noted that the United States and other countries responded with formal protests to China. Australia, Canada, United Kingdom, South Korea, Japan, Taiwan, and the European Union reportedly also issued concerns. Russia downplayed the test. China did not give advance warnings and its Foreign Ministry did not issue a public statement until January 23, saying that China calls for the peaceful use of space and that the test was not aimed at any country. The critical challenge in the short term is posed by the space debris resulting from the PRC's intentional destruction of a satellite. It was the first such destruction of a satellite since the ASAT tests conducted during the Cold War by the United States and the Soviet Union in the 1980s. Since then, neither the United States nor Russia has destroyed satellites in space, while many more civilian and military satellites have been used by countries and companies. In LEO (up to 2,000 km, or 1,242 miles altitude), reconnaissance and weather satellites, and manned space missions (including the International Space Station, Space Shuttle, and China's manned flights) are vulnerable to the increase in space debris resulting from China's satellite destruction. This debris cloud (estimated at 950 pieces 4 inches or bigger plus thousands of smaller pieces) threatens space assets in LEO, according to the Johnson Space Center. The Director of Space Operations at the Air Force said that his staff tracked about 14,000 particles before January 11, and that number increased to about 15,000. The Commander of the Strategic Command (STRATCOM) testified that the last U.S. kinetic ASAT test occurred in 1985 and at the lower altitude of LEO, and even so, the debris took over 20 years to come down out of space and burn up in the atmosphere. China's test was in the upper altitude of LEO and the resulting debris is seen as a threat to space assets for more than 20 years. According to the Air Force Space Command, the space debris increased the collision risk for about 700 spacecraft. China has known about international concerns about space debris. Its "Space White Paper" of October 2006 stated that China has "actively participated" in the Inter-Agency Space Debris Coordination Committee, initiated a Space Debris Action Plan, and increased international exchanges on space debris research. The longer-term implications concern some questions about China's capability and intention to attack U.S. satellites. Whereas the Secretary of Defense has reported publicly to Congress since 1998 that China's military has been developing an ASAT capability, some observers doubted the Pentagon's assertions. China's January 2007 test confirmed China's long-suspected program to develop ASAT weapons, a program that could potentially put at risk U.S. military and intelligence satellites that are needed to provide tracking and targeting for rapid reaction or other operations. China demonstrated a limited capability to use a missile to launch a kinetic kill vehicle to destroy one of its own satellites in LEO under testing conditions that it controlled. The mobility of this ASAT weapon under development also could present challenges for U.S. tracking and warning time. Aside from developing and testing this ASAT capability, China does not have enough satellite interceptors, although it can produce enough of them by 2010 to destroy most U.S. satellites in LEO with little warning, estimates the Defense Department. Also, the ASAT test did not threaten the U.S. missile defense system. The Director of the Defense Intelligence Agency testified to Congress that the test demonstrated China's capability "to eventually deploy an ASAT system that could threaten U.S. satellites." Threat consists of capabilities and intentions, stressed the Chairman of the Joint Chiefs of Staff, General Peter Pace, at a news conference on March 7, 2007. He visited China on March 22-26, and reported that the intention of the ASAT test remained unclear. China has not explained how it intends to use this ASAT weapon that has been tested. Various comments by PLA officers and PRC civilian analysts have justified the ASAT test as needed to counter perceived U.S. "hegemony" in space and target the vulnerability of U.S. dependence on satellites. A PLA Air Force colonel wrote in late 2006 that U.S. military power, including long-range strikes, have relied on superiority in space and that leveraging space technology can allow a rising power to close the gap with advanced countries more rapidly than trying to catch up. A PRC specialist at Fudan University indicated that China's ASAT program is developed partly to maintain China's nuclear deterrence, perceived as undermined by U.S. space assets. An analyst at the PLA's Academy of Military Science argued that China does not have a clear space deterrence theory and that China likely seeks a limited capability to counter U.S. dominance in space and reduce the likelihood of U.S. attacks against space assets. Some news reports speculated that this ASAT test surprised U.S. intelligence. Although China's test confirmed long-standing Defense Department reporting about China's counter-space program, some warnings seemed inconsistent with China's January 2007 kinetic kill ASAT test. In the three annual reports on the PLA from 2004 to 2006 (required by the FY2000 National Defense Authorization Act), the Secretary of Defense reported to Congress that China could destroy or disable satellites in space "only" by launching a ballistic missile or space launch vehicle "armed with a nuclear weapon." However, the Pentagon's 2003 report warned that China was developing a "direct-ascent ASAT system" that could be fielded between 2005 and 2010. Also, U.S. intelligence reportedly knew about the PLA's previous tests and preparations for this latest ASAT test. A number of U.S. intelligence agencies had a "full court press underway" to monitor the ASAT test on January 11, and it was the fourth test that the United States monitored using missile-warning satellites. China conducted three previous tests in this weapon program between September 2004 and February 2006, according to a U.S. official. Despite foreign protests, China did not issue an official statement until January 23, 12 days after the ASAT test. China's Foreign Ministry simply stated that its "experiment" did not target or threaten any country and that China opposes the weaponization of space or an arms race in space. Beijing's lack of a prepared explanation and delay in issuing a statement raised questions about whether the top leaders approved the PLA's ASAT tests, coordinated between the Foreign Ministry and the PLA, miscalculated foreign responses, or approved the ASAT program and anticipated criticisms but decided anyway to test. Adding to concerns about China's intentions, the ASAT test did not come at a time of bilateral tensions. After the U.S.-China summit in April 2006, NASA and the STRATCOM proposed civilian and military space contacts with China, and NASA's Administrator visited China in September 2006. In this debate, National Security Advisor Stephen Hadley questioned whether China's leaders knew about the PLA's ASAT test in advance, suggesting that U.S. protests sought to compel top ruler Hu Jintao to become directly involved or responsible. However, Deputy Under Secretary of Defense Richard Lawless called the speculation "farfetched," since Hu is the Central Military Commission Chairman (as well as Communist Party General-Secretary and PRC President). China could have signaled a perceived self-confidence in countering U.S. forces in a possible conflict over Taiwan or another area of dispute. Then-Commander of the Pacific Command (PACOM), Admiral William Fallon, said that the PLA was trying to counter U.S. military power in a possible conflict over Taiwan. Also, the ASAT weapon demonstration was undeniably traced to the PLA. Morever, the January 2007 test followed sudden changes made by the PLA Air Force in its control of airspace and flight routes near Shanghai, including a rare shutdown of the busy Pudong airport, in November and December 2006. PRC officials and scholars have been warning that 2007 is a critical year with potential crises in the Taiwan Strait, citing their concerns about perceived pro-independence moves by Taiwan's president. The PLA Air Force's actions and ASAT test could have signaled to Washington to heed Beijing's words about Taipei. Some in China argued that the new U.S. National Space Policy prompted China's test, while U.S. officials have contended that, regardless, China has developed a range of counter-space weapons to challenge U.S. space dominance. News reports stressed a hardline tone of the policy (signed by President Bush in August 2006, with a public version issued in October 2006), which stated opposition to new space arms control and denial of the use of space to adversaries "hostile" to U.S. interests.