[meteorite-list] Navy Missile Likely Hit Fuel Tank on Disabled Satellite
From: Ron Baalke <baalke_at_meteoritecentral.com>
Date: Thu, 21 Feb 2008 13:23:11 -0800 (PST) Message-ID: <200802212123.NAA18294_at_zagami.jpl.nasa.gov> Public Affairs U.S. Department of Defense Office of the Assistant Secretary of Defense Washington, D.C. Media contact: +1 (703) 697-5131/697-5132 IMMEDIATE RELEASE: February 20, 2008 No. 0139-08 DoD Succeeds In Intercepting Non-Functioning Satellite A network of land-, air-, sea- and spaced-based sensors confirms that the U.S. military intercepted a non-functioning National Reconnaissance Office satellite which was in its final orbits before entering the earth's atmosphere. At approximately 10:26 p.m. EST today, a U.S. Navy AEGIS warship, the USS Lake Erie (CG-70), fired a single modified tactical Standard Missile-3 (SM-3) hitting the satellite approximately 247 kilometers (133 nautical miles) over the Pacific Ocean as it traveled in space at more than 17,000 mph. USS Decatur (DDG-73) and USS Russell (DDG-59) were also part of the task force. The objective was to rupture the fuel tank to dissipate the approximately 1,000 pounds (453 kg) of hydrazine, a hazardous fuel which could pose a danger to people on earth, before it entered into earth's atmosphere. Confirmation that the fuel tank has been fragmented should be available within 24 hours. Due to the relatively low altitude of the satellite at the time of the engagement, debris will begin to re-enter the earths atmosphere immediately. Nearly all of the debris will burn up on reentry within 24-48 hours and the remaining debris should re-enter within 40 days. DoD will conduct a press briefing at 7 a.m. EST to provide further information related to the operation. The briefing can be viewed live on www.Defenselink.com through the Pentagon Channel. ----------------------------------------------------------------------------- U.S. Department of Defense Office of the Assistant Secretary of Defense Washington, D.C. Feb. 21, 2008 Navy Missile Likely Hit Fuel Tank on Disabled Satellite By Gerry J. Gilmore, American Forces Press Service WASHINGTON -- The missile fired from a U.S. Navy ship in the Pacific Ocean that hit a malfunctioning U.S. reconnaissance satellite late yesterday likely accomplished its goal of destroying the satellite's toxic fuel tank, a senior U.S. military officer said here today. Preliminary reports indicate the SM-3 missile struck its primary target, which was a tank full of toxic hydrazine rocket fuel carried aboard the 5,000-pound satellite, Marine Gen. James E. Cartwright, vice chairman of the Joint Chiefs of Staff, told reporters at a Pentagon news conference. "The intercept occurred. We're very confident that we hit the satellite," Cartwright said. "We also have a high degree of confidence that we got the tank." Video shown to reporters depicts the satellite exploding at the point of contact with the missile. Cartwright said the visible fireball and the vapor cloud or plume around it suggest that the fuel tank was hit and the hydrazine had burned up. "The high-definition imagery that we have indicates that we hit the spacecraft right in the area of the tank," Cartwright said. However, he added, it probably would take another 24 to 48 hours of sifting through data "to get to a point where we are very comfortable with our analysis that we indeed breached the tank." Radar sweeps of the satellite's debris field thus far show that no parts larger than a football survived the strike, Cartwright said. Post-strike surveillance shows satellite debris falling into the atmosphere above the Atlantic and Pacific Oceans, he said. Small remnants are likely to burn up in the atmosphere, never making it to the Earth's surface. The U.S. State Department has provided updates on the situation to its embassies around the world, Cartwright noted. There are no reports of debris reaching the Earth, he said, adding that consequence-management crews are on standby to respond to such a circumstance, if required. The SM-3 missile was launched by the USS Lake Erie, positioned northwest of Hawaii, at 10:26 p.m. EST yesterday, Cartwright said. Defense Secretary Robert M. Gates, who is on an overseas trip, gave the go-ahead to fire, Cartwright said. The missile intercepted the satellite about 153 miles above the Earth, just before it began to enter the atmosphere, Cartwright said. Joint Space Operations Center technicians at Vandenberg Air Force Base, Calif, confirmed the satalitte's breakup about 24 minutes later. The National Reconnaissance Office-managed satellite malfunctioned soon after it was launched in 2006, making it unresponsive to ground control. The satellite, orbiting Earth every 90 minutes or so, was expected to fall to Earth in February or March with its tank of hydrazine intact, possibly endangering human populations. President Bush directed the Defense Department to engage the satellite just before it entered the atmosphere. U.S. officials decided to shoot down the satellite because of the danger posed by the hazardous hydrazine, Cartwright explained, noting the goal was for the missile to hit and rupture the tank of rocket fuel, causing the hydrazine to burn up harmlessly in the atmosphere, along with debris from the stricken satellite. "So, you can imagine at the point of intercept last night there were a few cheers from people who have spent many days working on this project," Cartwright said. Biographies: * Gen. James E. Cartwright, USMC http://www.defenselink.mil/bios/biographydetail.aspx?biographyid=138 [NOTE: Images supporting this release are available at http://www.navy.mil/list_all.asp?id=35114 Videos supporting this release are available at http://dodvclips.mil/index.jsp?auto_band=x&rf=sv&fr_story=FRdamp250959&rf ] ***** U.S. Department of Defense Office of the Assistant Secretary of Defense Washington, D.C. Feb. 21, 2008 Gates Pleased by Mission's Success By Fred W. Baker III, American Forces Press Service HONOLULU -- Defense Secretary Robert M. Gates was pleased when he learned a U.S. Navy missile hit the crippled spy satellite that was falling out of orbit and threatening to spill its toxic rocket fuel upon re-entry. Defense officials could not immediately confirm that the fuel tank had been hit, and said they hope to know for sure by late tonight. At 5:35 p.m. in Hawaii (10:35 p.m. EST), Gates received a call from Vice Chairman of the Joint Chiefs of Staff Marine Gen. James E. Cartwright and U.S. Strategic Command Commander Air Force Gen. Kevin P. Chilton delivering the news that the mission was a success, Pentagon Press Secretary Geoff Morrell said. "The secretary was obviously very pleased to learn that, and he congratulated General Cartwright and General Chilton, as well as their teams, on a job well done," Morrell said. At about 1:40 p.m. EST yesterday, while en route to Hawaii from Washington, Gates held a conference call with the two generals and was told the conditions were "ripe" for an attempt. That is when the secretary gave the go-ahead for the Navy to take the shot, and he wished them luck in their attempt, Morrell said. At about 10:26 p.m. EST, a U.S. Navy Aegis warship, the USS Lake Erie, fired a single modified tactical Standard Missile 3, hitting the satellite about 133 nautical miles over the Pacific Ocean as it traveled in space at more than 17,000 mph, according to a Defense Department statement. The objective was to rupture the fuel tank to dissipate the roughly 1,000 pounds of hydrazine, a hazardous fuel that could pose a danger to people on Earth. "The secretary, like all of us, is standing by to learn more how successful the intercept was," Morrell said. "After all, the goal here was not just to hit the satellite. The goal here was to hit and destroy the fuel tank to eliminate it as potential danger to those of us here on Earth." Because of the relatively low altitude of the satellite at the time of the engagement, debris would have started re-entering the earth's atmosphere immediately, officials said, and nearly all of the debris will burn up on re-entry within two days. Should any large pieces of the satellite's debris make it to Earth, special teams are on alert and positioned within the U.S. Pacific Command, Navy. Adm. Timothy J. Keating, PACOM commander, told reporters traveling with the secretary shortly after Gates landed here. "(The teams are there) to lend assistance should parts of the satellite survive the missile impact and hit," he said. "We don't think the hydrazine container is going to hit. That's why we're shooting at it. But if it does, we're prepared to assist with specially trained teams that are on alert at various places throughout our area of responsibility." Joint Chiefs of Staff Chairman Navy Adm. Mike Mullen also spoke to reporters here and said the shoot-down does not threaten any country and is not a new space race with any country. "What we've tried to do from the beginning was be as open as possible about the intention," the chairman said during a news conference at Hickam Air Force Base. "We are taking the shot at what we hope will be an altitude that will minimize the amount of space debris that will occur. We've engaged governments throughout the world to tell them what our intentions are. We have been very transparent, very open in that regard." The admiral made a point that the Navy's Standard Missile 3 had to be modified to fly the mission at all, and that it would be used only in this kind of emergency response to similar potential dangers. Gates stopped in Hawaii on the first leg of a nine-day trip around the world aimed at reinforcing relationships with some countries he has yet to visit as defense secretary. In addition to U.S. Pacific Command here, the secretary will participate in annual bilateral talks with Australia, and discuss security matters with his counterparts in Indonesia, India and Turkey. (Jim Garamone of American Forces Press Service contributed to this story.) Biographies: * Robert M. Gates http://www.defenselink.mil/bios/biographydetail.aspx?biographyid=115 * Adm. Mike Mullen, USN http://www.defenselink.mil/bios/biographydetail.aspx?biographyid=139 * Adm. Timothy J. Keating, USN http://www.defenselink.mil/bios/biographydetail.aspx?biographyid=68 Related Sites: * U.S. Pacific Command http://www.pacom.mil/ * USS Lake Erie http://www.lake-erie.navy.mil/ * Photo Essay: Satellite Shoot Down http://www.defenselink.mil/PhotoEssays/PhotoEssaySS.aspx?ID=592 Received on Thu 21 Feb 2008 04:23:11 PM PST |
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