超级军网美国防部WGS-4军用通信卫星，Delta IV M+(5,4)，2012年1 ...
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波音公司将WGS-4卫星运抵卡纳维拉尔角空军基地
2011-11-21
[据波音公司网站2011年11月18日报道] 波音公司已经将第四颗宽带全球卫星通信（WGS-4）卫星运送到佛罗里达州卡纳维拉尔角空军基地，为2012年1月份的发射做最后的准备工作。这颗新的WGS卫星将加入到其他三颗在轨卫星，承担大量军队和政府机构卫星通信任务。
WGS-4是在波音公司埃尔塞贡多工厂建造的，是第二批次（Block II）首颗WGS卫星。新系列卫星增加了升级性能，如增加了一个可切换的射频旁路，数据传输速率比国防部目前使用的卫星提高3倍，传输机载情报监视和侦查图像。随着WGS-4卫星的加入，所有的WGS卫星将继续为作战人员提供即时的全球卫星通信连接。
WGS-4卫星和其他三颗卫星都将作为地球同步轨道卫星，在中东、太平洋和大西洋地区上空运转。
WGS卫星建立在经过验证的波音702HP平台上，采用了高效疝离子推进、可配备热辐射器，并采用先进的三结砷化镓太阳能电池阵列，能够携带高容量、灵活的有效载荷。WGS通信有效载荷具有对军事非常重要的独特灵活性和互联终端能力，能够在不同频率的波段运行，以基于不断变化的任务需求改变覆盖波束。WGS支持任务范围从战术通信到地面部队的通信，到机载情报监视与侦察平台的数据和图像中继转发。
（工业和信息化部电子科学技术情报研究所 冯园园）
波音公司将WGS-4卫星运抵卡纳维拉尔角空军基地
2011-11-21
[据波音公司网站2011年11月18日报道] 波音公司已经将第四颗宽带全球卫星通信（WGS-4）卫星运送到佛罗里达州卡纳维拉尔角空军基地，为2012年1月份的发射做最后的准备工作。这颗新的WGS卫星将加入到其他三颗在轨卫星，承担大量军队和政府机构卫星通信任务。
WGS-4是在波音公司埃尔塞贡多工厂建造的，是第二批次（Block II）首颗WGS卫星。新系列卫星增加了升级性能，如增加了一个可切换的射频旁路，数据传输速率比国防部目前使用的卫星提高3倍，传输机载情报监视和侦查图像。随着WGS-4卫星的加入，所有的WGS卫星将继续为作战人员提供即时的全球卫星通信连接。
WGS-4卫星和其他三颗卫星都将作为地球同步轨道卫星，在中东、太平洋和大西洋地区上空运转。
WGS卫星建立在经过验证的波音702HP平台上，采用了高效疝离子推进、可配备热辐射器，并采用先进的三结砷化镓太阳能电池阵列，能够携带高容量、灵活的有效载荷。WGS通信有效载荷具有对军事非常重要的独特灵活性和互联终端能力，能够在不同频率的波段运行，以基于不断变化的任务需求改变覆盖波束。WGS支持任务范围从战术通信到地面部队的通信，到机载情报监视与侦察平台的数据和图像中继转发。
（工业和信息化部电子科学技术情报研究所 冯园园）
http://www.dsti.net/Information/News/72340
好东西，MD下毛片应该很快！！
2012-1-10 14:58 上传
2012-1-10 14:59 上传
2012-1-10 15:03 上传
2012-1-10 15:07 上传
And for reference: the Delta rocket evolution diagram. This mission uses a Delta IV Medium+(5,4) modification. That means 5 meter diameter fairing, and 4 solid rocket boosters.
And for reference: the Delta rocket evolution diagram. This mission uses a Delta IV Medium+(5,4) modification. That means 5 meter diameter fairing, and 4 solid rocket boosters.
Delta_rocket_evolution.JPG (361.59 KB, 下载次数: 11)
下载附件 保存到相册
图很清楚、漂亮！
信息量不小。
国内航天发展很快，宣传和科普还没有跟上。
信息量不小。
国内航天发展很快，宣传和科普还没有跟上。
德尔塔IV是好火箭啊
按概率来说，德尔塔IV也该摔一回了。
2012-1-11 13:07 上传
脉脉不语 发表于 2012-1-11 09:21 ![]()
按概率来说，德尔塔IV也该摔一回了。
这次不摔，下次，再下次连着摔，气死你。
按概率来说，德尔塔IV也该摔一回了。
这次不摔，下次，再下次连着摔，气死你。
2012-1-16 14:55 上传
http://www.spacenews.com/militar ... obal-satellite.html
国会批准了WGS-10的采购；另有多个盟国（加拿大、丹麦、卢森堡、荷兰、新西兰）愿分担WGS-9的资金，以获得使用权。
U.S Air Force Now Expects To Order 10th Wideband Global Satellite
By Debra Werner
SAN FRANCISCO — The U.S. Air Force constellation of satellites designed to transmit high-resolution imagery and videos continues to expand as U.S. allies appear ready to pledge financial support for one spacecraft and the U.S. Congress provides funding for another.
As a result of steadily rising demand for global satellite communications services, the Air Force’s Wideband Global Satcom (WGS) fleet of X- and Ka-band satellites, which originally was expected to include six satellites, now is likely to include 10 spacecraft.
"A multinational agreement is in the works with several nations which may add another satellite to our constellation,” Dave Madden, director of the Air Force Space and Missile Systems Center’s Military Satellite Communications Systems Directorate in Los Angeles, said Jan. 10 during a teleconference with reporters to discuss the planned Jan. 19 launch of the fourth WGS spacecraft. The satellite funded by the multinational group would be the ninth WGS satellite.
The U.S. allies expected to share the cost of the spacecraft are Canada, Denmark, Luxembourg, the Netherlands and New Zealand, industry officials said. Air Force officials declined to confirm that list of countries but said the United States and five international partners are expected to sign by Jan. 17 a memorandum of understanding pledging funding for a ninth WGS satellite.
"If the deal goes through, [the five nations] will pay to procure the satellite in exchange for access to a certain percentage of bandwidth across the entire WGS constellation,” Madden said. The agreement is similar to a deal U.S. and Australian government officials approved in 2007. Australia paid for the sixth WGS spacecraft in exchange for access to the WGS constellation.
These agreements benefit the U.S. military because “we get an additional satellite on orbit to support our operations and it aligns U.S. forces with allies because they are all on the same equipment,” Madden said.
In addition, Air Force officials recently learned that funding for a tenth WGS spacecraft was included in the 2012 Defense Department budget signed Dec. 31 by U.S. President Barack Obama, Madden said.
Due in part to a growing reliance on unmanned aircraft capturing large amounts of imagery, demand for military satellite communications capacity is expected to increase exponentially, Madden said. Air Force officials are “working hard to try to figure out the best way to satisfy demand with a combination of WGS, hosted payloads and other options,” he added.
Three WGS satellites are currently in orbit. The fourth WGS spacecraft has been mounted on a United Launch Alliance Delta 4 rocket at Cape Canaveral Air Station in Florida in preparation for launch. Prime contractor Boeing Space and Intelligence Systems of El Segundo, Calif., is building the fifth, sixth and seventh WGS satellites. On Dec. 16, the U.S. Air Force awarded Boeing a $296 million contract for production and launch of the eighth WGS satellite.
After launching WGS-4, Air Force officials plan to spend approximately six weeks using the satellite’s xenon-ion thrusters to raise the satellite into orbit. That propulsion system is similar to the one that failed to move the Air Force’s first Advanced Extremely High Frequency satellite into orbit after its August 2010 launch. Investigators determined that the AEHF thruster malfunctioned due to debris in the fuel line. Air Force officials have scrutinized the WGS-4 fuel lines to ensure the same problem does not prevent that satellite from reaching orbit on schedule, Madden said.
The WGS-4 satellite is scheduled to be placed in an orbit over the continental United States while engineers test its performance. By the end of April, WGS-4 is scheduled to move to its destination “in the Indian Ocean region,” Madden said.
In January 2013, the Air Force plans to launch the fifth WGS satellite. WGS-6 is scheduled for launch in June 2013, said Jim Sponnick, United Launch Alliance vice president for mission operations.
国会批准了WGS-10的采购；另有多个盟国（加拿大、丹麦、卢森堡、荷兰、新西兰）愿分担WGS-9的资金，以获得使用权。
U.S Air Force Now Expects To Order 10th Wideband Global Satellite
By Debra Werner
SAN FRANCISCO — The U.S. Air Force constellation of satellites designed to transmit high-resolution imagery and videos continues to expand as U.S. allies appear ready to pledge financial support for one spacecraft and the U.S. Congress provides funding for another.
As a result of steadily rising demand for global satellite communications services, the Air Force’s Wideband Global Satcom (WGS) fleet of X- and Ka-band satellites, which originally was expected to include six satellites, now is likely to include 10 spacecraft.
"A multinational agreement is in the works with several nations which may add another satellite to our constellation,” Dave Madden, director of the Air Force Space and Missile Systems Center’s Military Satellite Communications Systems Directorate in Los Angeles, said Jan. 10 during a teleconference with reporters to discuss the planned Jan. 19 launch of the fourth WGS spacecraft. The satellite funded by the multinational group would be the ninth WGS satellite.
The U.S. allies expected to share the cost of the spacecraft are Canada, Denmark, Luxembourg, the Netherlands and New Zealand, industry officials said. Air Force officials declined to confirm that list of countries but said the United States and five international partners are expected to sign by Jan. 17 a memorandum of understanding pledging funding for a ninth WGS satellite.
"If the deal goes through, [the five nations] will pay to procure the satellite in exchange for access to a certain percentage of bandwidth across the entire WGS constellation,” Madden said. The agreement is similar to a deal U.S. and Australian government officials approved in 2007. Australia paid for the sixth WGS spacecraft in exchange for access to the WGS constellation.
These agreements benefit the U.S. military because “we get an additional satellite on orbit to support our operations and it aligns U.S. forces with allies because they are all on the same equipment,” Madden said.
In addition, Air Force officials recently learned that funding for a tenth WGS spacecraft was included in the 2012 Defense Department budget signed Dec. 31 by U.S. President Barack Obama, Madden said.
Due in part to a growing reliance on unmanned aircraft capturing large amounts of imagery, demand for military satellite communications capacity is expected to increase exponentially, Madden said. Air Force officials are “working hard to try to figure out the best way to satisfy demand with a combination of WGS, hosted payloads and other options,” he added.
Three WGS satellites are currently in orbit. The fourth WGS spacecraft has been mounted on a United Launch Alliance Delta 4 rocket at Cape Canaveral Air Station in Florida in preparation for launch. Prime contractor Boeing Space and Intelligence Systems of El Segundo, Calif., is building the fifth, sixth and seventh WGS satellites. On Dec. 16, the U.S. Air Force awarded Boeing a $296 million contract for production and launch of the eighth WGS satellite.
After launching WGS-4, Air Force officials plan to spend approximately six weeks using the satellite’s xenon-ion thrusters to raise the satellite into orbit. That propulsion system is similar to the one that failed to move the Air Force’s first Advanced Extremely High Frequency satellite into orbit after its August 2010 launch. Investigators determined that the AEHF thruster malfunctioned due to debris in the fuel line. Air Force officials have scrutinized the WGS-4 fuel lines to ensure the same problem does not prevent that satellite from reaching orbit on schedule, Madden said.
The WGS-4 satellite is scheduled to be placed in an orbit over the continental United States while engineers test its performance. By the end of April, WGS-4 is scheduled to move to its destination “in the Indian Ocean region,” Madden said.
In January 2013, the Air Force plans to launch the fifth WGS satellite. WGS-6 is scheduled for launch in June 2013, said Jim Sponnick, United Launch Alliance vice president for mission operations.
six weeks using the satellite’s xenon-ion thrusters to raise the satellite into orbit.
看来这就是今年的全球第三射了！
ULA Twitter:
"GREAT weather forecast for WGS-4: 95% chance of acceptable weather for tomorrow's launch."
"GREAT weather forecast for WGS-4: 95% chance of acceptable weather for tomorrow's launch."
嗯，看起来很不错！发射成功。
http://www.nasaspaceflight.com/2 ... elta-iv-fourth-wgs/
ULA Delta IV successfully launches the fourth WGS spacecraft
January 19th, 2012 by William Graham
United Launch Alliance have conducted the United States’ first orbital launch of the year on Thursday, when their Delta IV launched with the fourth Wideband Global Satcom spacecraft. Liftoff from SLC-37B at the Cape Canaveral Air Force Station was on schedule for the beginning of a 93-minute launch window which opened at 19:38 local time (00:38 on Friday in UTC).
http://www.nasaspaceflight.com/2 ... elta-iv-fourth-wgs/
ULA Delta IV successfully launches the fourth WGS spacecraft
January 19th, 2012 by William Graham
United Launch Alliance have conducted the United States’ first orbital launch of the year on Thursday, when their Delta IV launched with the fourth Wideband Global Satcom spacecraft. Liftoff from SLC-37B at the Cape Canaveral Air Force Station was on schedule for the beginning of a 93-minute launch window which opened at 19:38 local time (00:38 on Friday in UTC).
D4的卖相真是好啊~！
emellzzq 发表于 2012-1-20 10:31 ![]()
D4的卖相真是好啊~！
18次发射仅1次部分失败，虽然和前辈的德尔塔II恐怖的发射成功率没法比，但还算是开了个好头
D4的卖相真是好啊~！
18次发射仅1次部分失败，虽然和前辈的德尔塔II恐怖的发射成功率没法比，但还算是开了个好头
之前，德尔塔IV系列的发射频率大概是每年3发左右，但今年将增加到5次，也就是说还有4次德尔塔IV的发射。2012年还有6次宇宙神V的发射，这些发射计划完成的话，对于EELV来说就是11次发射了。
入轨成功了希望定点不成功，定点成功了希望电池板打不开，太阳能板打开了，还可能遭到太空垃圾或陨石的撞击，总之希望它出点事才好。
羡慕嫉妒恨。。。卫星也好 火箭也好。。。
脉脉不语 发表于 2012-1-11 09:21 ![]()
按概率来说，德尔塔IV也该摔一回了。
这是独立事件，无论多少次，成功概率都一样
按概率来说，德尔塔IV也该摔一回了。
这是独立事件，无论多少次，成功概率都一样
传输速率呢。。。。。。。。。。
nimbostratus 发表于 2012-1-11 16:03 ![]()
这次不摔，下次，再下次连着摔，气死你。
小心一语成谶~~~当初美国航天飞机这好那好，终于还是出事了
这次不摔，下次，再下次连着摔，气死你。
小心一语成谶~~~当初美国航天飞机这好那好，终于还是出事了
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