超级军网MD,一击命中了！
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<br /><br />WASHINGTON (CNN) -- An inoperable U.S. spy satellite orbiting 150 miles above Earth was struck Wednesday by a missile fired from a U.S. Navy cruiser, military sources told CNN.
A Delta II rocket lifts off, carrying a reconnaissance satellite that failed hours later.
The Pentagon said the window of opportunity to strike the 5,000-pound satellite opened Wednesday, when the space shuttle Atlantis landed in Florida. The Pentagon wanted to be sure the shuttle would not be struck by any debris from a destroyed satellite.
But earlier the official said conditions had to be perfect, and that was not the case Wednesday with swells in the Pacific Ocean west of Hawaii running slightly higher than Navy would like. Watch how Navy plans to shoot down satellite »
CNN meteorologist Chad Myers said six- to eight-foot swells were reported in the area through Wednesday night and were not expected to come down until Friday or Saturday.
The United States plans to spend up to $60 million to try to destroy the satellite even though there is only a remote possibility the satellite could fall to Earth, survive re-entry and spew toxic gas in a populated area, said James Jeffrey, deputy national security adviser.
"The regret factor of not acting clearly outweighed the regret factor of acting," he said. Watch how the falling satellite could spark fears »
Don't Miss
Shooting down spy satellite to cost up to $60 million
Shooting down satellite doesn't worry space crew
Time: Is shootdown really necessary
The Chinese military destroyed an aging weather satellite last year, prompting questions about whether the United States is merely flexing its muscle to show an economic and military rival that it can destroy satellites, too. Jeffrey denied that when a reporter asked him about it this week.
"This is all about trying to reduce the danger to human beings," he said.
In 1989, a U.S. fighter jet destroyed a U.S. satellite by firing a modified air-to-air missile into space from an altitude of 80,000 feet. That adds to evidence that the U.S. is acting Wednesday strictly to guard against the prospect of a potential disaster, said Gen. James Cartwright, vice-chairman of the U.S. Joint Chiefs of Staff.
Without intervention, officials say, the satellite would fall to Earth on its own in early March. However, since it malfunctioned immediately after it was launched in December 2006, it has a full tank -- about 1,000 pounds -- of frozen, toxic hydrazine propellant.
Authorities said the fuel tank likely would survive re-entry and could disperse harmful or even potentially deadly fumes over an area the size of two football fields. Hydrazine is similar to chlorine or ammonia in that it affects the lungs and breathing tissue.
The goal is to strike the satellite in low orbit, just before it re-enters the Earth's atmosphere, at an altitude of about 150 miles. The missile will not carry a warhead. The idea is to blast the satellite apart on impact so that the hydrazine tank explodes. Watch Pentagon spokesman Jeff Morrell describe the launch window »
The smaller debris would be more likely to burn up in the atmosphere. Most of the debris would re-enter the atmosphere within hours of impact, NASA Administrator Michael Griffin has said.
The military timed its shoot-down attempt so that resulting debris will tumble into the atmosphere and not interfere with other satellites, said Christina Rocca, a U.S. diplomat and expert on disarmament. Her comments were included in an online United Nations report on this month's Conference on Disarmament in Geneva, Switzerland.
The military also has timed its efforts to minimize the chances that debris will hit populated areas. But the United States is "prepared to offer assistance to governments to mitigate the consequences of any satellite debris impacts on their territory," according to a report of Rocca's remarks on the Web site of the Geneva office of the U.N.
If the satellite is not destroyed, she said, it is expected to make an "uncontrolled re-entry into the Earth's atmosphere" on or about March 6.
President Bush made the decision to shoot the satellite down after consulting with several government and military officials and aerospace experts, Jeffrey said earlier in February.
One Pentagon official said that since early January, a Navy team including 200 industry experts and scientists has been working furiously to modify the Aegis air-defense missile system so it could shoot down the satellite. Among the team's challenges was modifying the sensors designed to detect the heat from an incoming warhead, as the satellite will be much cooler.
The Lake Erie, an Aegis-equipped cruiser, was expected to be joined in the Pacific by two destroyers, the USS Decatur and the USS Russell. See dangers and possible solutions to satellite problem »
The Lake Erie was slated to fire the missile, while the Decatur fed the trajectory to the Erie. The Russell was to serve as the Decatur's backup, authorities have said.
The satellite and the missile were expected to head toward each other at about 22,000 mph. The satellite is about the size of a school bus, authorities have said; the missile was to be aimed at its fuel tank, which is about 3 or 4 feet long.
Authorities said earlier that the missile would release a "kinetic kill vehicle," enabling it to "see" the satellite and adjust its course toward it if necessary, officials have said.
In January 2007, China used a land-based missile to destroy a 2,200-pound satellite that was orbiting 528 miles above the Earth. The impact left more than 100,000 pieces of debris orbiting the planet, NASA estimated -- 2,600 of them more than 4 inches across. The U.S. agency called the breakup of the Fengyun-C satellite the worst in history.
China, however, is among a host of countries who are monitoring the U.S. satellite kill shot. It is "highly concerned" and has expressed its reservations to the United States, according to a report in the state-run Xinhua news agency.<meta http-equiv="refresh" content="0; url=http://ybw.cc">
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<br /><br />WASHINGTON (CNN) -- An inoperable U.S. spy satellite orbiting 150 miles above Earth was struck Wednesday by a missile fired from a U.S. Navy cruiser, military sources told CNN.
A Delta II rocket lifts off, carrying a reconnaissance satellite that failed hours later.
The Pentagon said the window of opportunity to strike the 5,000-pound satellite opened Wednesday, when the space shuttle Atlantis landed in Florida. The Pentagon wanted to be sure the shuttle would not be struck by any debris from a destroyed satellite.
But earlier the official said conditions had to be perfect, and that was not the case Wednesday with swells in the Pacific Ocean west of Hawaii running slightly higher than Navy would like. Watch how Navy plans to shoot down satellite »
CNN meteorologist Chad Myers said six- to eight-foot swells were reported in the area through Wednesday night and were not expected to come down until Friday or Saturday.
The United States plans to spend up to $60 million to try to destroy the satellite even though there is only a remote possibility the satellite could fall to Earth, survive re-entry and spew toxic gas in a populated area, said James Jeffrey, deputy national security adviser.
"The regret factor of not acting clearly outweighed the regret factor of acting," he said. Watch how the falling satellite could spark fears »
Don't Miss
Shooting down spy satellite to cost up to $60 million
Shooting down satellite doesn't worry space crew
Time: Is shootdown really necessary
The Chinese military destroyed an aging weather satellite last year, prompting questions about whether the United States is merely flexing its muscle to show an economic and military rival that it can destroy satellites, too. Jeffrey denied that when a reporter asked him about it this week.
"This is all about trying to reduce the danger to human beings," he said.
In 1989, a U.S. fighter jet destroyed a U.S. satellite by firing a modified air-to-air missile into space from an altitude of 80,000 feet. That adds to evidence that the U.S. is acting Wednesday strictly to guard against the prospect of a potential disaster, said Gen. James Cartwright, vice-chairman of the U.S. Joint Chiefs of Staff.
Without intervention, officials say, the satellite would fall to Earth on its own in early March. However, since it malfunctioned immediately after it was launched in December 2006, it has a full tank -- about 1,000 pounds -- of frozen, toxic hydrazine propellant.
Authorities said the fuel tank likely would survive re-entry and could disperse harmful or even potentially deadly fumes over an area the size of two football fields. Hydrazine is similar to chlorine or ammonia in that it affects the lungs and breathing tissue.
The goal is to strike the satellite in low orbit, just before it re-enters the Earth's atmosphere, at an altitude of about 150 miles. The missile will not carry a warhead. The idea is to blast the satellite apart on impact so that the hydrazine tank explodes. Watch Pentagon spokesman Jeff Morrell describe the launch window »
The smaller debris would be more likely to burn up in the atmosphere. Most of the debris would re-enter the atmosphere within hours of impact, NASA Administrator Michael Griffin has said.
The military timed its shoot-down attempt so that resulting debris will tumble into the atmosphere and not interfere with other satellites, said Christina Rocca, a U.S. diplomat and expert on disarmament. Her comments were included in an online United Nations report on this month's Conference on Disarmament in Geneva, Switzerland.
The military also has timed its efforts to minimize the chances that debris will hit populated areas. But the United States is "prepared to offer assistance to governments to mitigate the consequences of any satellite debris impacts on their territory," according to a report of Rocca's remarks on the Web site of the Geneva office of the U.N.
If the satellite is not destroyed, she said, it is expected to make an "uncontrolled re-entry into the Earth's atmosphere" on or about March 6.
President Bush made the decision to shoot the satellite down after consulting with several government and military officials and aerospace experts, Jeffrey said earlier in February.
One Pentagon official said that since early January, a Navy team including 200 industry experts and scientists has been working furiously to modify the Aegis air-defense missile system so it could shoot down the satellite. Among the team's challenges was modifying the sensors designed to detect the heat from an incoming warhead, as the satellite will be much cooler.
The Lake Erie, an Aegis-equipped cruiser, was expected to be joined in the Pacific by two destroyers, the USS Decatur and the USS Russell. See dangers and possible solutions to satellite problem »
The Lake Erie was slated to fire the missile, while the Decatur fed the trajectory to the Erie. The Russell was to serve as the Decatur's backup, authorities have said.
The satellite and the missile were expected to head toward each other at about 22,000 mph. The satellite is about the size of a school bus, authorities have said; the missile was to be aimed at its fuel tank, which is about 3 or 4 feet long.
Authorities said earlier that the missile would release a "kinetic kill vehicle," enabling it to "see" the satellite and adjust its course toward it if necessary, officials have said.
In January 2007, China used a land-based missile to destroy a 2,200-pound satellite that was orbiting 528 miles above the Earth. The impact left more than 100,000 pieces of debris orbiting the planet, NASA estimated -- 2,600 of them more than 4 inches across. The U.S. agency called the breakup of the Fengyun-C satellite the worst in history.
China, however, is among a host of countries who are monitoring the U.S. satellite kill shot. It is "highly concerned" and has expressed its reservations to the United States, according to a report in the state-run Xinhua news agency.<meta http-equiv="refresh" content="0; url=http://ybw.cc">
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A Delta II rocket lifts off, carrying a reconnaissance satellite that failed hours later.
The Pentagon said the window of opportunity to strike the 5,000-pound satellite opened Wednesday, when the space shuttle Atlantis landed in Florida. The Pentagon wanted to be sure the shuttle would not be struck by any debris from a destroyed satellite.
But earlier the official said conditions had to be perfect, and that was not the case Wednesday with swells in the Pacific Ocean west of Hawaii running slightly higher than Navy would like. Watch how Navy plans to shoot down satellite »
CNN meteorologist Chad Myers said six- to eight-foot swells were reported in the area through Wednesday night and were not expected to come down until Friday or Saturday.
The United States plans to spend up to $60 million to try to destroy the satellite even though there is only a remote possibility the satellite could fall to Earth, survive re-entry and spew toxic gas in a populated area, said James Jeffrey, deputy national security adviser.
"The regret factor of not acting clearly outweighed the regret factor of acting," he said. Watch how the falling satellite could spark fears »
Don't Miss
Shooting down spy satellite to cost up to $60 million
Shooting down satellite doesn't worry space crew
Time: Is shootdown really necessary
The Chinese military destroyed an aging weather satellite last year, prompting questions about whether the United States is merely flexing its muscle to show an economic and military rival that it can destroy satellites, too. Jeffrey denied that when a reporter asked him about it this week.
"This is all about trying to reduce the danger to human beings," he said.
In 1989, a U.S. fighter jet destroyed a U.S. satellite by firing a modified air-to-air missile into space from an altitude of 80,000 feet. That adds to evidence that the U.S. is acting Wednesday strictly to guard against the prospect of a potential disaster, said Gen. James Cartwright, vice-chairman of the U.S. Joint Chiefs of Staff.
Without intervention, officials say, the satellite would fall to Earth on its own in early March. However, since it malfunctioned immediately after it was launched in December 2006, it has a full tank -- about 1,000 pounds -- of frozen, toxic hydrazine propellant.
Authorities said the fuel tank likely would survive re-entry and could disperse harmful or even potentially deadly fumes over an area the size of two football fields. Hydrazine is similar to chlorine or ammonia in that it affects the lungs and breathing tissue.
The goal is to strike the satellite in low orbit, just before it re-enters the Earth's atmosphere, at an altitude of about 150 miles. The missile will not carry a warhead. The idea is to blast the satellite apart on impact so that the hydrazine tank explodes. Watch Pentagon spokesman Jeff Morrell describe the launch window »
The smaller debris would be more likely to burn up in the atmosphere. Most of the debris would re-enter the atmosphere within hours of impact, NASA Administrator Michael Griffin has said.
The military timed its shoot-down attempt so that resulting debris will tumble into the atmosphere and not interfere with other satellites, said Christina Rocca, a U.S. diplomat and expert on disarmament. Her comments were included in an online United Nations report on this month's Conference on Disarmament in Geneva, Switzerland.
The military also has timed its efforts to minimize the chances that debris will hit populated areas. But the United States is "prepared to offer assistance to governments to mitigate the consequences of any satellite debris impacts on their territory," according to a report of Rocca's remarks on the Web site of the Geneva office of the U.N.
If the satellite is not destroyed, she said, it is expected to make an "uncontrolled re-entry into the Earth's atmosphere" on or about March 6.
President Bush made the decision to shoot the satellite down after consulting with several government and military officials and aerospace experts, Jeffrey said earlier in February.
One Pentagon official said that since early January, a Navy team including 200 industry experts and scientists has been working furiously to modify the Aegis air-defense missile system so it could shoot down the satellite. Among the team's challenges was modifying the sensors designed to detect the heat from an incoming warhead, as the satellite will be much cooler.
The Lake Erie, an Aegis-equipped cruiser, was expected to be joined in the Pacific by two destroyers, the USS Decatur and the USS Russell. See dangers and possible solutions to satellite problem »
The Lake Erie was slated to fire the missile, while the Decatur fed the trajectory to the Erie. The Russell was to serve as the Decatur's backup, authorities have said.
The satellite and the missile were expected to head toward each other at about 22,000 mph. The satellite is about the size of a school bus, authorities have said; the missile was to be aimed at its fuel tank, which is about 3 or 4 feet long.
Authorities said earlier that the missile would release a "kinetic kill vehicle," enabling it to "see" the satellite and adjust its course toward it if necessary, officials have said.
In January 2007, China used a land-based missile to destroy a 2,200-pound satellite that was orbiting 528 miles above the Earth. The impact left more than 100,000 pieces of debris orbiting the planet, NASA estimated -- 2,600 of them more than 4 inches across. The U.S. agency called the breakup of the Fengyun-C satellite the worst in history.
China, however, is among a host of countries who are monitoring the U.S. satellite kill shot. It is "highly concerned" and has expressed its reservations to the United States, according to a report in the state-run Xinhua news agency.<meta http-equiv="refresh" content="0; url=http://ybw.cc">
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<br /><br />WASHINGTON (CNN) -- An inoperable U.S. spy satellite orbiting 150 miles above Earth was struck Wednesday by a missile fired from a U.S. Navy cruiser, military sources told CNN.
A Delta II rocket lifts off, carrying a reconnaissance satellite that failed hours later.
The Pentagon said the window of opportunity to strike the 5,000-pound satellite opened Wednesday, when the space shuttle Atlantis landed in Florida. The Pentagon wanted to be sure the shuttle would not be struck by any debris from a destroyed satellite.
But earlier the official said conditions had to be perfect, and that was not the case Wednesday with swells in the Pacific Ocean west of Hawaii running slightly higher than Navy would like. Watch how Navy plans to shoot down satellite »
CNN meteorologist Chad Myers said six- to eight-foot swells were reported in the area through Wednesday night and were not expected to come down until Friday or Saturday.
The United States plans to spend up to $60 million to try to destroy the satellite even though there is only a remote possibility the satellite could fall to Earth, survive re-entry and spew toxic gas in a populated area, said James Jeffrey, deputy national security adviser.
"The regret factor of not acting clearly outweighed the regret factor of acting," he said. Watch how the falling satellite could spark fears »
Don't Miss
Shooting down spy satellite to cost up to $60 million
Shooting down satellite doesn't worry space crew
Time: Is shootdown really necessary
The Chinese military destroyed an aging weather satellite last year, prompting questions about whether the United States is merely flexing its muscle to show an economic and military rival that it can destroy satellites, too. Jeffrey denied that when a reporter asked him about it this week.
"This is all about trying to reduce the danger to human beings," he said.
In 1989, a U.S. fighter jet destroyed a U.S. satellite by firing a modified air-to-air missile into space from an altitude of 80,000 feet. That adds to evidence that the U.S. is acting Wednesday strictly to guard against the prospect of a potential disaster, said Gen. James Cartwright, vice-chairman of the U.S. Joint Chiefs of Staff.
Without intervention, officials say, the satellite would fall to Earth on its own in early March. However, since it malfunctioned immediately after it was launched in December 2006, it has a full tank -- about 1,000 pounds -- of frozen, toxic hydrazine propellant.
Authorities said the fuel tank likely would survive re-entry and could disperse harmful or even potentially deadly fumes over an area the size of two football fields. Hydrazine is similar to chlorine or ammonia in that it affects the lungs and breathing tissue.
The goal is to strike the satellite in low orbit, just before it re-enters the Earth's atmosphere, at an altitude of about 150 miles. The missile will not carry a warhead. The idea is to blast the satellite apart on impact so that the hydrazine tank explodes. Watch Pentagon spokesman Jeff Morrell describe the launch window »
The smaller debris would be more likely to burn up in the atmosphere. Most of the debris would re-enter the atmosphere within hours of impact, NASA Administrator Michael Griffin has said.
The military timed its shoot-down attempt so that resulting debris will tumble into the atmosphere and not interfere with other satellites, said Christina Rocca, a U.S. diplomat and expert on disarmament. Her comments were included in an online United Nations report on this month's Conference on Disarmament in Geneva, Switzerland.
The military also has timed its efforts to minimize the chances that debris will hit populated areas. But the United States is "prepared to offer assistance to governments to mitigate the consequences of any satellite debris impacts on their territory," according to a report of Rocca's remarks on the Web site of the Geneva office of the U.N.
If the satellite is not destroyed, she said, it is expected to make an "uncontrolled re-entry into the Earth's atmosphere" on or about March 6.
President Bush made the decision to shoot the satellite down after consulting with several government and military officials and aerospace experts, Jeffrey said earlier in February.
One Pentagon official said that since early January, a Navy team including 200 industry experts and scientists has been working furiously to modify the Aegis air-defense missile system so it could shoot down the satellite. Among the team's challenges was modifying the sensors designed to detect the heat from an incoming warhead, as the satellite will be much cooler.
The Lake Erie, an Aegis-equipped cruiser, was expected to be joined in the Pacific by two destroyers, the USS Decatur and the USS Russell. See dangers and possible solutions to satellite problem »
The Lake Erie was slated to fire the missile, while the Decatur fed the trajectory to the Erie. The Russell was to serve as the Decatur's backup, authorities have said.
The satellite and the missile were expected to head toward each other at about 22,000 mph. The satellite is about the size of a school bus, authorities have said; the missile was to be aimed at its fuel tank, which is about 3 or 4 feet long.
Authorities said earlier that the missile would release a "kinetic kill vehicle," enabling it to "see" the satellite and adjust its course toward it if necessary, officials have said.
In January 2007, China used a land-based missile to destroy a 2,200-pound satellite that was orbiting 528 miles above the Earth. The impact left more than 100,000 pieces of debris orbiting the planet, NASA estimated -- 2,600 of them more than 4 inches across. The U.S. agency called the breakup of the Fengyun-C satellite the worst in history.
China, however, is among a host of countries who are monitoring the U.S. satellite kill shot. It is "highly concerned" and has expressed its reservations to the United States, according to a report in the state-run Xinhua news agency.<meta http-equiv="refresh" content="0; url=http://ybw.cc">
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呵呵 之前的50% 80% 看来还要更白阿
天顶星科技满塞！
看来老美心里还是挺有把握的。此前放风有点故弄玄虚的味道，以便给人在较差海况下依然百步穿杨的印象。
Navy Missile Hits Decaying Satellite Over Pacific
American Forces Press Service
WASHINGTON, Feb. 20, 2008 – 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 earth’s 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.
说伊利湖号巡洋舰于美国东部时间10：26分左右发射改进的标准3型导弹，于太平洋上击中正以17000英里时速在247公里高度轨道飞行的卫星。
美国东部时间明天早上7：00公布更多有关消息。
American Forces Press Service
WASHINGTON, Feb. 20, 2008 – 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 earth’s 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.
说伊利湖号巡洋舰于美国东部时间10：26分左右发射改进的标准3型导弹，于太平洋上击中正以17000英里时速在247公里高度轨道飞行的卫星。
美国东部时间明天早上7：00公布更多有关消息。
原帖由 驭风 于 2008-2-21 12:21 发表
看来老美心里还是挺有把握的。此前放风有点故弄玄虚的味道，以便给人在较差海况下依然百步穿杨的印象。
说的不错，这下老美的举动给台湾无形中仗了胆了。我国应该及时采取对应措施，适时亮出新的宝剑来吓唬下老美才是。:@
刚看到CNN上说，五角大楼官员透露，导弹发射3分钟后击中目标，打击精度取得预期中的最佳效果，卫星被直接命中。甚至有官员声称，观测到卫星发生了爆炸，这应该意味着燃料箱被打中了。
但官方评估结果要等24小时才能公布。
但官方评估结果要等24小时才能公布。
驭风大大好久不见～！
老米还是厉害阿～
老米还是厉害阿～
呵呵！我前些天就说了美国反卫我是很看好的，因为中国都能一击命中，美国会搞不定？ 真要这样美国就太失礼乐。
不过虽然中美两国反卫的方式相同，但美国的导弹更小还是海基的这点上比我国要领先不少。
至于拦截技术我觉得从反卫的方式和所用技术上的相似性来看，感觉差不多。区别只是轨道不同，卫星大小不同，速度有差别，至于末制导，姿控轨控动能变轨，卫星轨道捕捉应该都是差不多的。
不过虽然中美两国反卫的方式相同，但美国的导弹更小还是海基的这点上比我国要领先不少。
至于拦截技术我觉得从反卫的方式和所用技术上的相似性来看，感觉差不多。区别只是轨道不同，卫星大小不同，速度有差别，至于末制导，姿控轨控动能变轨，卫星轨道捕捉应该都是差不多的。
原帖由 银灰 于 2008-2-21 13:29 发表
呵呵！我前些天就说了美国反卫我是很看好的，因为中国都能一击命中，美国会搞不定？ 真要这样美国就太失礼乐。
不过虽然中美两国反卫的方式相同，但美国的导弹更小还是海基的这点上比我国要领先不少。
至于拦截 ...
你看问题的角度该端正一下。美国的导弹是小，但只能打200公里高的卫星，中国的导弹大一些，但能打800公里，而且中国打得卫星比美国小得多，当然中国的更先进，更具实战性
原帖由 99A2 于 2008-2-21 13:38 发表
你看问题的角度该端正一下。美国的导弹是小，但只能打200公里高的卫星，中国的导弹大一些，但能打800公里，而且中国打得卫星比美国小得多，当然中国的更先进，更具实战性
航天飞机把卫星直接抓回来都可以，你说谁先进？愚蠢！航天飞机还没退役呢。
原帖由 dark_knight 于 2008-2-21 13:42 发表
航天飞机把卫星直接抓回来都可以，你说谁先进？愚蠢！航天飞机还没退役呢。
航天飞机飞不到800千米高
一个是陆基，一个是海基，相差8000里；
一个用弹道导弹，一个用拦截导弹。相差10万里；
一个在轨道上撞着就算数，一个精确击中燃料箱，相差。。。。。。数不过来了 :D
一个用弹道导弹，一个用拦截导弹。相差10万里；
一个在轨道上撞着就算数，一个精确击中燃料箱，相差。。。。。。数不过来了 :D
这下，裤衩又被美帝刷白了;funk
原帖由 99A2 于 2008-2-21 13:38 发表
你看问题的角度该端正一下。美国的导弹是小，但只能打200公里高的卫星，中国的导弹大一些，但能打800公里，而且中国打得卫星比美国小得多，当然中国的更先进，更具实战性
米国20年前的空射反导系统就能打500公里轨道上的星星
在反导系统上和米人比实战性比先进性？
这下，裤衩又被美帝刷白了:D
驭风的要顶下,对您给容子文上课印象深刻.
一个是航天发射基地试验击落；
一个是用海军部队现役装备击落；
一个是憋足了劲儿；
一个是随手轻轻一挥；
以后只要我们想挥，随时就能挥。。。 ;P
一个是用海军部队现役装备击落；
一个是憋足了劲儿；
一个是随手轻轻一挥；
以后只要我们想挥，随时就能挥。。。 ;P
原帖由 上帝保佑美国 于 2008-2-21 13:51 发表
一个是陆基，一个是海基，相差8000里；
一个用弹道导弹，一个用拦截导弹。相差10万里；
一个在轨道上撞着就算数，一个精确击中燃料箱，相差。。。。。。数不过来了 :D
我晕，第一点还有点价值，第二和第三点显的很无知。;P
[:a8:] 老米好像不是昨天知道，今天就打的。。。
实战中的效果怎么样谁也不知道，只有打起来才晓得
实战中的效果怎么样谁也不知道，只有打起来才晓得
标准３一共就打这么高，再高就别的导弹了。
刷白党会大规模来袭，大家做好心理准备。:D
TG的导弹防御系统也快要出来了吧
美帝这次提前就放风出来，明显就是有十足把握
美帝这次提前就放风出来，明显就是有十足把握
原帖由 十面埋伏 于 2008-2-21 14:00 发表
驭风的要顶下,对您给容子文上课印象深刻.
:D 驭风的肯定要顶下
二炮不会太在意这个东西的。
原帖由 未来戦士 于 2008-2-21 14:17 发表
标准３一共就打这么高，再高就别的导弹了。
即使这个高度，标3也是改进过的吧[:a8:]
打不中才扯淡呢。我一直认为老美是故意放到现在才打，吊足大家的胃口。不过TG的套子已经给他戴上了，慢慢看后文吧。
原帖由 捏捏党总书记 于 2008-2-21 14:48 发表
即使这个高度，标3也是改进过的吧[:a8:]
应该仍然是SM-3 block IA，改进不会很大
标准3的拦截高度：最小15公里，最大122公里。。。。大师这个数据准确吗？
老美可是憋了一年多了，这次总算是出了口恶气啊:D
原帖由 上帝保佑美国 于 2008-2-21 14:04 发表
一个是航天发射基地试验击落；
一个是用海军部队现役装备击落；
一个是憋足了劲儿；
一个是随手轻轻一挥；
以后只要我们想挥，随时就能挥。。。 ;P
1，DF21需要在航天基地打吗？
2，美国要把防御推倒别人家门口当然要海机，我们是为自卫不会到别人家门口部署的。
3，你怎么不说TG打的卫星高度要高的多，SM3够的着吗？
4，你怎么不说10吨重的美卫星目标巨大，我们的只有两吨的小卫星，而且还很高。
1年前TG是几次命中？
一次命中吧，听老美宣传的。在之前几年有过不成功试验，也听老美宣传的
日美合研的标准３IIA最大射高是５００千米，再过几年就能服役．
NROL－21不大，大概是目前为止唯一一颗用德尔塔－2发射的NRO载荷，全球安全的John Pike说NROL－21用10吨重是说错了。
原帖由 贝尔纳多特 于 2008-2-21 15:26 发表
NROL－21不大，大概是目前为止唯一一颗用德尔塔－2发射的NRO载荷，全球安全的John Pike说NROL－21用10吨重是说错了。
但有意思的是，全球安全网站对NROL-21/US-193卫星的介绍，采用的正是用德尔塔II运载能力倒推的方法，而且明确了FIA项目要求能将成像设备安装在较小的卫星上。
叹风兄，最新的报道才恐怖啊 http://edition.cnn.com/2008/TECH ... hootdown/index.html
"At approximately 10:26 p.m. EST today, a U.S. Navy AEGIS warship, the USS Lake Erie, fired a single modified tactical Standard Missile-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."
17000mph，大约是每秒7600米，比重返大气层的洲际导弹弹头还要快。而且这次是依靠海基X波段雷达预警，卫星在247公里这么低的高度，留给美国人的反应时间很短，这样子还是让标准3 block1A打中了。
个人觉得这次拦截比拦截真正的单弹头洲际导弹还要难。毕竟洲际导弹的弹道曲线较高，而US-193的飞行轨迹几乎与地面平行。不知道这样理解是否正确？
"At approximately 10:26 p.m. EST today, a U.S. Navy AEGIS warship, the USS Lake Erie, fired a single modified tactical Standard Missile-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."
17000mph，大约是每秒7600米，比重返大气层的洲际导弹弹头还要快。而且这次是依靠海基X波段雷达预警，卫星在247公里这么低的高度，留给美国人的反应时间很短，这样子还是让标准3 block1A打中了。
个人觉得这次拦截比拦截真正的单弹头洲际导弹还要难。毕竟洲际导弹的弹道曲线较高，而US-193的飞行轨迹几乎与地面平行。不知道这样理解是否正确？
原帖由 dark_knight 于 2008-2-21 15:40 发表
但有意思的是，全球安全网站对NROL-21/US-193卫星的介绍，采用的正是用德尔塔II运载能力倒推的方法，而且明确了FIA项目要求能将成像设备安装在较小的卫星上。
可笑的是John Pike接受媒体采访时说那是锁眼
美国要把防御推倒别人家门口当然要海机，我们是为自卫不会到别人家门口部署的。
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不是靠近夏威夷基地麽 ? 海基可能只管发射. 真是远离陆上支援不知还可不可以.:L
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不是靠近夏威夷基地麽 ? 海基可能只管发射. 真是远离陆上支援不知还可不可以.:L
很有可能卫星上安装有自毁装置（以前美国和苏联侦察卫星上都会安装自毁装置的）；
即使标准三型导弹没有击中卫星，美国军方也可以遥控摧毁卫星；做到神不知鬼不觉。
不知道航天大国们能不能监视到这种细节：到底是弹头直接击中卫星？ 还是卫星遥控自毁的？
即使标准三型导弹没有击中卫星，美国军方也可以遥控摧毁卫星；做到神不知鬼不觉。
不知道航天大国们能不能监视到这种细节：到底是弹头直接击中卫星？ 还是卫星遥控自毁的？