2016年12月航天发射：美国还有2次，中国4-5次

 

07:53德尔塔4火箭发射,载荷为美国政府的WGS-8军用通信卫星。还剩2次发射。

星箭分离，发射成功！
7Dec2016 19:34:44 EST
WGS-8 spacecraft separation
With the remaining Delta IV second stage and WGS-8 spacecraft flying over the Indian ocean east of Madagascar the spacecraft has separated from the D4SS and is now flying on orbit under its own power. This completes the mission for the US Air Force today.

7Dec2016 19:25:34 EST
MECO-2
The second stage main engine has now completed its task and has shut down. There will now be an 8 minute cruise as the spacecraft is prepared for separation.

7Dec2016 19:22:26 EST
MES-2
The second stage main engine has now been restarted for the final time in this flight. The burn will last for about 3 minutes as the WGS-8 spacecraft is oriented and placed into the desired orbit.

 

 

WGS 1, launched by an Atlas-V on Oct. 10, 2007, was parked over the Pacific to provide coverage from the west coast of North America to Southeast Asia.
WGS 2 was launched by an Atlas-V to a location over the Indian Ocean to provide U.S. Central Command with coverage of Afghanistan, Iraq, and other parts of Southwest Asia.
WGS 3 was launched on a Delta-IV Medium+ on Dec. 6, 2009, to cover the Eastern Atlantic, including the U.S. European Command, Africa Command, and portions of the Middle East.
WGS 4, the first of the Block II satellites, was launched on a Delta-IV+ on Jan. 20, 2012, and configured to especially aid communications with U.S. drones operating in the Middle East and Southeast Asia, and support U.S. Central Command and U.S. Pacific Command.
WGS 5 was launched by a Delta-IV medium+ on May 24, 2016, to provide to the U.S. and Canada, including Northern Command, Southern Command, Transportation Command, Strategic Command, the Missile Defense Agency, and a multitude of  other users in the Western Hemisphere.
WGS 6, to primarily service Australia and South and North America, was launched on a Delta-IV Medium+ on Aug. 7, 2013.
WGS 7 was launched on July 24, 2015, and was positioned over the Central Pacific to cover areas from Australia to Asia. All of these high power spacecraft are fully operational, with 14-year lifetimes, predicted from their individual launch dates, said Boeing.
WGS-8 will mark ULA’s 70th national security launch since the company was founded in 2006. This is the sixth flight in the Medium+ (5,4) configuration; all launches in this configuration have been for WGS missions.
http://www.americaspace.com/?p=96911 

 

 

 

【发射统计】2016年11月份，全世界一共进行了9次航天发射：中国4次；美国2次；日本1次；欧空局1次；俄罗斯1次。截止11月底，全年共73次：美国19次，另外地面爆炸1次；中国19次(失败1次)；俄罗斯16次；欧空局9次；印度6次；日本2次；朝鲜1次；以色列1次。

 

 

2016的航天发射，美国今年还有2次，中国剩4-5次。一切顺利的话，中国将首次站在年度发射次数世界第一的位置(23-24次)。 年初的目标是27-28次。 ·