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More & More Advanced Chinese spy satellites lauched every month

Discussion in 'The Courtyard Café' started by tun_dr_m, Jan 9, 2018.

  1. tun_dr_m

    tun_dr_m Alfrescian Old Timer

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    http://www.xinhuanet.com/photo/2018-01/09/c_1122232388.htm

    高景一号03、04星成功发射 中国航天发射2018年迎来“开门红”
    2018年01月09日 12:53:35 | 来源: 新华网
    [​IMG]
      1月9日11时24分,我国在太原卫星发射中心用长征二号丁运载火箭,将03、04星发射升空,卫星顺利进入预定轨道,中国航天2018年首次发射任务取得圆满成功。

      新华社记者 曹阳 摄

    高景一号03、04星成功发射 中国航天发射2018年迎来“开门红”
    2018年01月09日 12:53:35 | 来源: 新华网
    [​IMG]

      1月9日11时24分,我国在太原卫星发射中心用长征二号丁运载火箭,将高景一号03、04星发射升空,卫星顺利进入预定轨道,中国航天2018年首次发射任务取得圆满成功。

      新华社记者 曹阳 摄
    高景一号03、04星成功发射 中国航天发射2018年迎来“开门红”
    2018年01月09日 12:53:35 | 来源: 新华网
    [​IMG]

      1月9日11时24分,我国在太原卫星发射中心用长征二号丁运载火箭,将高景一号03、04星发射升空,卫星顺利进入预定轨道,中国航天2018年首次发射任务取得圆满成功。

      新华社记者 曹阳 摄



    高景一号03、04星成功发射 中国航天发射2018年迎来“开门红”
    2018年01月09日 12:53:35 | 来源: 新华网
    [​IMG]
      1月9日11时24分,我国在太原卫星发射中心用长征二号丁运载火箭,将高景一号03、04星发射升空,卫星顺利进入预定轨道,中国航天2018年首次发射任务取得圆满成功。

      新华社记者 曹阳 摄



    Last Year's video 0.5 meter resolution only, this year much clearer video & images from better satellites:






     
  2. Shut Up you are Not MM

    Shut Up you are Not MM Alfrescian Old Timer

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    Meanwhile, SPACE X just X away Zuma the PentagonZ's latest most expensive top secret spy satellite.


    https://m.sohu.com/a/215528695_115376?_f=m-index_mil_news_6

    美国火箭发射任务失败 最高机密间谍卫星被搞丢了
    [​IMG]
    海外网
    01-09 12:54

    +关注
    [​IMG]

    图为SpaceX公布的发射图片

    海外网1月9日电 北京时间1月9日,据美国工业部门官方消息,美国一颗造价不菲、高度机密的间谍卫星“丢了”,它搭载美国太空探索技术公(简称SpaceX)发射的火箭,因未能到达预定轨道,此次卫星发射宣告失败。

    斗地主高手都在这玩,太刺激
    广告
    [​IMG]
    据华尔街日报消息,这颗代号为“祖马(Zuma)”的间谍卫星是由美国国防承包商诺斯罗普·格鲁门制造的一颗机密政府卫星,当地时间1月7日搭载“猎鹰9号”运载火箭于佛罗里达州升空。由于没能按照计划与火箭上半部分分离,现被认为已经坠落回到大气层。

    一旦火箭二级驱动燃料耗尽,无论携带的是什么,都应该按照计划相互分离并且按照自己的轨道前行。但是如果卫星没有在合适的时机脱离火箭,它就可能被拖拽回地球。据了解,美国国会相关工作人员已经听取了发射情况的任务简报。

    制造这颗卫星的公司斯罗普·格鲁门和SpaceX都未披露发射失败的具体情况。SpaceX发言人称,该公司不对这类性质的任务置评,但目前的数据分析显示“猎鹰9号”火箭当时运转正常,但发言人未予详细说明。

    日前,火箭发射后,SpaceX官方并没有向外界确认发射成功的消息,当地时间1月8日,消息人士就分析,神秘的“祖马”卫星可能未能达到预定轨道,已完全与地面失去联系。8日下午,航空记者皮特·彼德塞尔丁(Peter B. de Selding)在Twitter发消息称,他听人说卫星出了问题。彼德塞尔丁称,“祖马”从“猎鹰9号”火箭分离之后可能在轨道上“死”了,原因不明。

    据了解,其实“祖马”早就应该在2017年11月发射,但却被推迟到现在,至于这颗卫星发射任务的目的、将与哪种航天器进行对接以及此次发射订单来自哪一政府部门,目前都是未知。承包商格鲁门曾在声明中曾表示:“格鲁门公司意识到,此次发射任务责任重大,将想方设法确保"祖马"项目以最经济和最低风险方式进行发射。”

    据美媒介绍,这是SpaceX第三次执行国家安全任务,对于迅速增长的SpaceX来说,此次发射失败适逢一个重要节点,该公司正在力图将自己打造成五角大楼的一个可靠、低成本发射服务提供商。该公司正在与主要对手、波音公司(Boeing Co., BA)和洛克希德·马丁公司(Lockheed Martin Co., LMT)组建的一个合资公司以争夺更多涉及国家安全的发射任务。(海外网 朱惠悦)

    https://www.cnbc.com/amp/2018/01/08...s-to-be-a-total-loss-after-spacex-launch.html


    Highly classified US spy satellite appears to be a total loss after SpaceX launch
    Everett Rosenfeld | @Ev_Rosenfeld
    Published 6 Hours Ago Updated 6 Hours AgoCNBC.com
    • Dow Jones reported Monday evening that lawmakers had been briefed about the apparent destruction of the secretive payload — code-named Zuma
    • The payload was suspected to have failed to separate perfectly from the upper part of the SpaceX Falcon 9 rocket
    • The missing satellite may have been worth billions of dollars
    A highly classified U.S. government satellite appears to have been totally lost after being taken into space by a recent launch from Elon Musk's SpaceX, according to a new report.

    Dow Jones reported Monday evening that lawmakers had been briefed about the apparent destruction of the secretive payload — code-named Zuma — citing industry and government officials

    The payload was suspected to have burned up in the atmosphere after failing to separate perfectly from the upper part of the SpaceX Falcon 9 rocket, the report said.


    According to Dow Jones, the absence of official word on the incident means that there could have been another chain of events.

    The missing satellite may have been worth billions of dollars, industry officials estimated to the wire service.

    Northrop Grumman, which built the satellite, told Dow Jones through a spokesman: "We cannot comment on classified missions."

    A SpaceX spokesman told the news service: "We do not comment on missions of this nature, but as of right now reviews of the data indicate Falcon 9 performed nominally."

    The Zuma spacecraft was attached to one of SpaceX's Falcon 9 rockets and launched from the Cape Canaveral Air Force Station in Florida. The Falcon 9 successfully landed back to base.

    Landing and reusing rockets is the main aim of SpaceX scientists, who argue that it reduces the cost of launches and allows it to perform more missions.

    SpaceX did not reveal the purpose of Zuma because it is classified, but the mission marked Elon Musk's company's first in 2018.

    —CNBC's Arjun Kharpal contributed to this report.

    For more on the apparently lost satellite, see the full report from Dow Jones.
     
  3. Shut Up you are Not MM

    Shut Up you are Not MM Alfrescian Old Timer

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    https://www.google.com.sg/amp/s/www...ite-mission-failed-orbit-launch-Elon-Musk/amp


    Secret SpaceX Zuma mission ‘TOTAL LOSS’ as spy satellite destroyed in 'FIREBALL'

    [​IMG]GETTY

    SpaceX Zuma mission has been branded a failure after it failed to make orbit
    THE top secret Zuma mission has "burned up" in a fireball after it failed to separate from the SpaceX rocket correctly, reports claim.
    By TARYN TARRANT-CORNISH
    PUBLISHED: 02:02, Tue, Jan 9, 2018UPDATED: 06:04, Tue, Jan 9, 2018
    Share on FacebookShare on TwitterShare on Google+Share with EmailShare via Whatsapp
    The high-profile mission, backed by SpaceX founder Elon Musk, has been branded a failure after the highly sensitive and expensive craft thought to be a spy satellite was lost.

    The report from Dow Jones cited industry and government sources and claimed that the missions highly valuable payload was thought to have burned up in the atmosphere.

    The private firm who made the suspected spy satellite for an unknown arm of the US government said they were unable to comment on the “classified mission”.
     
  4. Huat A Fuck!

    Huat A Fuck! Alfrescian Old Timer

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    Make America Great Again!?
     
  5. syed putra

    syed putra Alfrescian Old Timer

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    The chinese or north koreans shot it down.
     
  6. condom_loong

    condom_loong Alfrescian Old Timer

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    http://www.businessinsider.com/us-spy-satellite-lost-due-to-spacex-failure-2018-1/?IR=T


    A highly classified US spy satellite is missing due to a SpaceX mission failure
    [​IMG] Zuma mission. SpaceX

    • A highly classified US spy satellite was reportedly lost after a failed SpaceX launch in Florida.
    • The satellite, code-named Zuma, failed to reach orbit and fell back into Earth's atmosphere after separating from the Falcon 9 rocket.
    • A SpaceX spokesperson told Business Insider, "We do not comment on missions of this nature; but as of right now reviews of the data indicate Falcon 9 performed nominally."

    A highly classified US spy satellite has been lost after a failed SpaceX launch from Florida on Sunday, The Wall Street Journal has reported.

    The satellite, code-named Zuma, failed to reach orbit and fell back into Earth's atmosphere after separating from the Falcon 9 rocket.

    According to the Wall Street Journal, this situation occurs when a satellite is released at the wrong time or is damaged.

    Officials who spoke with NBC said the satellite likely broke up or landed in the sea.

    A SpaceX spokesperson told Business Insider, "We do not comment on missions of this nature; but as of right now reviews of the data indicate Falcon 9 performed nominally."


    The Journal indicated this type of language points to normal rocket operations, meaning the cause of any issue came from elsewhere.

    Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics, said on Twitter that SpaceX did not supply the payload adapter, which shoots the satellite off the rocket, for this mission. Instead it was supplied by the customer, so Elon Musk's SpaceX may not have been the cause of any problem. However, those details were not immediately known.

    Zuma was built by defense contractors Northrop Grumman, though it is unknown which US agency would have been using the satellite.

    Zuma was initially scheduled to launch in November, but was delayed until the rocket and satellite were declared "healthy" for launch last week.

    The mission likely cost billions of dollars and lawmakers in the US Senate and House have been briefed on the developments, The Journal reported.

    NOW WATCH: North Korea's leader Kim Jong-Un is 34 —here's how he became one of the world’s scariest dictators

    More: Elon Musk Spy Satellites Space SpaceX



    https://www.npr.org/sections/thetwo...rtedly-write-off-after-failing-to-reach-orbit


    U.S. Spy Satellite Reportedly 'Write Off' After Failing To Reach Orbit
    January 9, 20184:47 AM ET
    Scott Neuman

    Twitter
    [​IMG]

    A SpaceX Falcon9 rocket blasts off the launch pad in Feb. 2015, carrying the NOAA's Deep Space Climate Observatory spacecraft. The same type of rocket attempted to place a U.S. spy satellite in orbit on Sunday.

    Orlando Sentinel/TNS via Getty Images
    A top-secret multi-billion dollar U.S. spy satellite launched from Cape Canaveral on Sunday reportedly failed to separate from the upper stage of its SpaceX Falcon 9 rocket and never reached orbit.

    The technology website Ars Technica cites one source as saying the "the payload fell back to Earth along with the spent upper stage of the Falcon 9 rocket."

    The satellite, code-named Zuma, appears to be "a write-off," according to a source quoted by Reuters.

    During Sunday's launch, SpaceX initially broadcast ground control communications, but switched it off several minutes into the flight, citing the secret nature of the payload. Speaking on Monday, SpaceX spokesman James Gleeson appeared to be sticking with the commercial space-launch service's initial assessment of the launch: "We do not comment on missions of this nature; but as of right now reviews of the data indicate Falcon 9 performed nominally."

    Northrup Grumman, the manufacturer of Zuma, also declined to comment. The Falls Church, Va., based defense contractor built Zuma and was responsible for choosing SpaceX to launch it, according to sources quoted in The Wall Street Journal.

    No details of the satellite, or which government agency was to have operated it, have been made public. The Journal's source said an investigation of the launch is under way, but there is no immediate sign of sabotage or other interference.

    Although there was no official confirmation of the satellite's loss, the U.S. Strategic Command, which monitors 23,000 man-made objects in space, told Bloomberg that it was not tracking any new satellites since Sunday's launch.

    "We have nothing to add to the satellite catalog at this time," Navy Captain Brook DeWalt, a spokesman for the command, wrote in an email to Bloomberg.

    SpaceX, run by entrepreneur Elon Musk, has sent more than a dozen resupply missions to the International Space Station, most recently in December. The company launched its first satellite for the U.S. military in May of last year.

     
  7. ToaPehGong

    ToaPehGong Alfrescian Old Timer

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    They are spying on everyone. Soon the space would be filled with their satellites and they can monopolize the satellite industry
     
  8. eatshitndie

    eatshitndie Alfrescian (Inf)

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    they are polluting space with their trash. sooner or later they will fall back to earth and pollute the planet.
     
  9. tun_dr_m

    tun_dr_m Alfrescian Old Timer

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    Military satellites almost launching every WEEK non-stop. Yesterday 2 more BDS3 Beidou GPS, superior of USA's GPS.

    http://www.xinhuanet.com/photo/2018-01/12/c_1122250265_2.htm

    我国成功发射两颗北斗三号组网卫星 新年度北斗高密度发射序幕开启
    2018年01月12日 13:47:41 | 来源: 新华网
    [​IMG]
      1月12日7时18分,我国在西昌卫星发射中心用长征三号乙运载火箭(及远征一号上面级),以“一箭双星”方式成功发射第二十六、二十七颗北斗导航卫星。这两颗卫星属于中圆地球轨道卫星,是我国北斗三号工程第三、四颗组网卫星。 新华社发(梁珂岩 摄)


    我国成功发射两颗北斗三号组网卫星 新年度北斗高密度发射序幕开启
    2018年01月12日 13:47:41 | 来源: 新华网
    [​IMG]

      1月12日7时18分,我国在西昌卫星发射中心用长征三号乙运载火箭(及远征一号上面级),以“一箭双星”方式成功发射第二十六、二十七颗北斗导航卫星。这两颗卫星属于中圆地球轨道卫星,是我国北斗三号工程第三、四颗组网卫星。 新华社发(梁珂岩 摄)
     
  10. Leongsam

    Leongsam Administrator Staff Member Old Timer Old Timer

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    The trouble with chink stuff is it keeps falling out of the sky and rains deadly debris on innocent countries.
     
  11. tun_dr_m

    tun_dr_m Alfrescian Old Timer

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    All spacecraft got lifespan limitation and all earth orbiting satellites fall to earth after out of propulsion fuel - 100% follow Newton's law. Regardless country of origin. USA in the past fall the most of space derbies. There is HUGE DIFF because USA just few days ago FAILED launching their Top Secret Giant Spy Satellite ZUMA fell into Indian Ocean, this is very different from those Expired Out of Fuel Satellites, this is FULL OF FUEL Brand New UNUSED. Like crap just fall back to earth on failed launching. With their fuel they are alike random whacking missiles and bombs.


    During 911 Boeing 767 full of fuel were hijacked to be used in similar way to Whack Pentagon & WTC. Huat Ah! Kenna Big!

    http://www.sohu.com/a/216288720_614127

    中国刚刚发射的这两颗遥感卫星太厉害,关键时刻可客串侦察卫星!
    2018-01-12 19:02 中国
    2018年1月9日我国在太原卫星发射中心使用长征二号丁运载火箭采用“一箭双星”的方式将高景一号03/04星发射升空,目前卫星已顺利进入预定轨道。高景一号03/04星将与于2016年12月发射升空的01/02星组成一个0.5米级高精度商业遥感卫星星座,对我国高分辨率遥感卫星的商业化运营探索意义重大。

    [​IMG]

    高景一号商业遥感卫星具有超强的探测能力。高景一号由中国航天科技集团公司负责研制,卫星全重560千克,在轨高度530千米,设计寿命8年,分辨率高达0.5米,超过了其前辈高分二号的1.0米级分辨率。高景一号具有超高分辨率、高敏捷度、丰富的光谱波段等技术特点。

    高景一号全色分辨率为0.5米,定位精度可保持在20米以内,显现地面细节将轻而易举。同时,高景一号最大侧摆角度可达45度,对于星下快速成像作用巨大,具有点成像、侧摆成像、立体成像、多条带拼接等多种工作模式,单颗卫星每天可采集70万平方公里地域的详细资料,重访周期4天。除此之外,高景一号卫星还具有丰富的光谱波段,具备全色波段和蓝色、绿色、红色和红外波段等4个标准多光谱波段,这将极大地提升成像质量。

    [​IMG]

    高景一号具有重大的商业价值。03/04星完成在轨测试后,高景一号高分辨率遥感卫星星座将初步建成,可为全球用户提供遥感数据服务和应用系统解决方案。同时,高景一号在国土资源调查、测绘、环境监测领域也将发挥巨大作用。除此之外,高景一号还可为保险、金融等行业提供增值服务。综合看来,高景一号商业价值不俗。

    [​IMG]

    高景一号具有一定的军事潜力,因为将商业遥感卫星用于军事用途的做法早已有之,与军事侦察卫星相比商业遥感卫星具有轨道高、覆盖面广、高精度等特点,因此军事应用潜力不可小觑。以美国的快鸟卫星为例,该卫星可提供亚米级分辨率服务而且重访周期极短,1~3.5天即可完成一次重访,侦察效率高出高景一号不少,美国曾多次将快鸟卫星用于侦察恐怖组织活动和他国军事机密。随着高景一号的出现,中国在军事侦察领域的能力将得到有效提高。

    [​IMG]

    作为我国航天2018年的首次发射,高景一号高分辨率遥感卫星的成功发射可谓是开门红,高景一号卫星星座的不断完善对中国遥感卫星的商业化应用探索促进巨大,而高景一号在关键时刻也可客串侦察卫星进行军事侦察,这对于完善中国卫星侦察体系至关重要。

    本文由火器营原创,抄袭必究!(图片来源于网络)返回搜狐,查看更多

    声明:本文由入驻搜狐号的作者撰写,除搜狐官方账号外,观点仅代表作者本人,不代表搜狐立场。
     
  12. tun_dr_m

    tun_dr_m Alfrescian Old Timer

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    And yet another new earth surveyrance satellite launched by PRC today. Ang Mohs panicking.

    https://news.sina.cn/gn/2018-01-13/detail-ifyqqciz6500946.d.html

    陆地勘查卫星三号发射 系长征火箭第263次飞行
    [​IMG]
    澎湃新闻
    01月13日 15:39关注
    原标题:长征系列运载火箭第263次飞行!陆地勘查卫星三号成功发射

    “装备科技”微信公号1月13日消息,2018年1月13日15时10分,我国在酒泉卫星发射中心用长征二号丁运载火箭,成功将陆地勘查卫星三号发射升空,卫星进入预定轨道。该星主要用于开展陆地资源遥感勘查。

    这是长征系列运载火箭的第263次飞行。

    来源:“装备科技”
     
  13. syed putra

    syed putra Alfrescian Old Timer

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    They should get elon musk to build the satellites as well. Full conatract. Not just partial.
     
  14. tun_dr_m

    tun_dr_m Alfrescian Old Timer

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    Today's Earth surveillance satellite launching pics:

    我国成功发射陆地勘查卫星三号
    2018年01月13日 16:43:24 | 来源: 新华网
    [​IMG]
      2018年1月13日15时10分,我国在酒泉卫星发射中心用长征二号丁运载火箭,成功将陆地勘查卫星三号发射升空,卫星进入预定轨道。新华社发(汪江波 摄)



    1 2 3 下一页

    我国成功发射陆地勘查卫星三号
    2018年01月13日 16:43:24 | 来源: 新华网
    [​IMG]

      2018年1月13日15时10分,我国在酒泉卫星发射中心用长征二号丁运载火箭,成功将陆地勘查卫星三号发射升空,卫星进入预定轨道。新华社发(汪江波 摄)



    上一页 1 2 3 下一页


    新华图片首页 最新热图 高层动态 新闻聚焦 百态故事 大美印象 七日图烩 专题策划
    我国成功发射陆地勘查卫星三号
    2018年01月13日 16:43:24 | 来源: 新华网
    [​IMG]

      2018年1月13日15时10分,我国在酒泉卫星发射中心用长征二号丁运载火箭,成功将陆地勘查卫星三号发射升空,卫星进入预定轨道。新华社发(汪江波 摄)



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  15. war is best form of peace

    war is best form of peace Alfrescian Old Timer

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    PRC show case the niche areas in which they had beaten the West up side down in spy satellite technologies and breakthroughs.

    http://mil.news.sina.com.cn/jssd/2018-01-15/doc-ifyqrewi3644706.shtml

    中国打破技术壁垒研发巨型光学反射镜 可监控美航母
    2018年01月15日 17:15 新浪军事

    0
    [​IMG]
      1月8日,2017年度国家科学技术奖励大会在人民大会堂举行,我国四川成都光电所牵头完成的项目获国家技术发明奖一等奖(专用项目),这是光电所连续两年折桂该奖项,而拿下国家发明大奖的项目名称有点让人看不懂——“用于对地遥感卫星的先进空间微结构亚波长薄膜相机技术”,这里面什么是微结构亚波长薄膜相机?一层薄薄的薄膜可以做相机镜头?而且是在太空中造出一个侦察卫星来?怎么做到的呢。军事专家陈忠告诉记者,为了满足高轨道卫星高分辨率对地观测的要求,特别是新一代高性能侦察卫星的需要,美国、俄罗斯、法国和日本等国从上世纪末就开始研究新型光学成像技术,包括大口径单体反射镜成像技术、空间分块可展开反射成像技术、衍射成像技术、基于卫星编队的光学干涉合成孔径成像技术和稀疏孔径成像技术等,目前,前三类技术逐步走向工程化实施阶段,后两类技术由于技术难度过大,发展较为缓慢,还停留在实验室研究阶段。

    [​IMG]
      图片为我国自行研制的超大尺寸巨型光学反射镜,尺寸达到2.4米级主反射镜。

      希望通过增大成像镜片的尺寸来看的更清楚更远,目前世界常见的侦察卫星的轨道高度在400至900千米左右,其中最强的已美国“锁眼”-12后续卫星经可以实现0.05米级的成像分辨率,但这种卫星的镜头直径2米,整个卫星重达10多吨,其能看到的范围有限,类似于“锁眼”-12和“8X”(美军秘密雷达光学一体侦察卫星)这样的高级大型光学成像侦察卫星虽然可以采用低轨道提供了较高的分辨率,但这也使得常规低轨道光学成像侦察存在卫星重访同一个侦察地区的周期过长、覆盖侦察地域的范围小等缺点。我们以“锁眼”-12的运行周期为91分钟,这实际上等于一颗“锁眼”-12卫星对指定的某个区域侦察过顶时间只有不到2次,除非增加更多卫星,否则地面目标和人员完全可以对卫星侦察实施反侦察和战术规避。

      如果需要建立一个全球监控卫星群,需要几十颗这样的卫星,那样的造价就是个天文数字,只有一种可能性比较高的,办法就是制造一种具备高分辨率的地球同步轨道卫星,正所谓站的高,看的远,地球同步轨道卫星在距离地面36000千米的地方飞行,理论上在地球外轨道上的三颗等边均匀部署的地球同步轨道侦察卫星就可以实现全球同步侦察,但目前,这种侦察卫星的分辨率前仅为50米级,主要的原因是“光学镜片”不够大,成像能力不足,仅仅能在大海上发现航母这类大型目标,对于我国的要求肯定是不够的,虽然我国是世界上唯一拥有地球同步轨道侦察卫星的国家,但发展一种可以直接对美军海上航母编队的一举一动,都能实现实况直播的高级成像侦察卫星就显得十分重要了。

    [​IMG]
      为了解决这一问题,目前,世界各国主要采用大口径单体反射镜成像技术、空间分块可展开反射成像技术、衍射成像技术来解决看不清楚的问题,不过,对于反射成像系统,其反射镜必须经过镜坯研磨、轻量化、抛光、镀膜等复杂的加工工艺。美、欧等技术发达国家目前仅能制造3至4米级空间应用的单体反射镜,其中目前世界最大尺寸的碳化硅反射镜直径为3.5米,它就是法国为欧洲“赫歇尔”红外望远镜制造的主反射镜。但这个不是整体烧结的,而是分块烧制后机械拼接的,其镜片研制成本十分高昂,我国长春光机所在近年来通过攻关解决了大直径成像光学镜片的加工技术难关,已经可以制造4米级的碳化硅主反射镜,并采取一次性整体烧结成型技术,其重量仅为“世界第一镜片”的3分之一,而其分辨率将达到空前的1米级,如果一切顺利,这种新型地球同步轨道侦察卫星将在五年内升空。等等,这个和上面的薄膜没什么关系吧?对对,那个薄膜就更厉害了。

    [​IMG]
      衍射光学薄膜成像侦察卫星的想象图。

      上世纪90年代以来,美国国防先进研究项目局(DARPA)开始研制一种衍射光学薄膜技术,这层薄膜和我们常见的塑料大棚的材质类似,不过上面有一层层特殊涂层,增加了其强度以及反射成像能力,也就是一种可展开光学薄膜反射镜技术,装备有这种技术的卫星入轨后,就像在太空中撑开一个雨伞,甚至可以展开直径为20米的衍射光学薄膜,卫星凝视视场超过一千万平方千米,分辨率高达2.5米,如果制造成40米的“镜片”,就可以实现对航母上飞机和飞行人员的一举一动实施实况直播,几年前,美军的“莫尔纹”衍射光学薄膜技术项目开始研制5米口径光学薄膜成像系统的地面原理样机。2013年4月,美国劳伦斯-利弗莫尔国家实验室向鲍尔公司交付了6块边长约0.8米、面积约0.4平方米的梯形衍射薄膜。随后,鲍尔公司对6块薄膜进行了拼装,制成了主镜1/8扇区的衍射镜片,并开展了光学系统的测试工作,不过,美国人这次慢了。

    [​IMG]
      2014年,我国成都光电所首次完成了直径400毫米的薄膜望远镜研制,在国内首次实现了直径400毫米的微结构薄膜望远镜宽波段(0.49μm至0.68μm)成像系统的成功研制。目前,中科院光电技术研究所在科技部地球观测与导航专项——“静止轨道高分辨率轻型成像相机系统技术”支持下,获得了巨大技术突破,领先美国国防先进研究项目局接近5年的研制进度,目前,我国先进薄膜成像光学系统现阶段,正从原理样机研制到工程样机研制过渡,我国计划造2020年前率先完成13米级薄膜成像光学系统研制,2025年之前实现卫星升空。(作者署名:军情视野)
     
  16. sand_ban

    sand_ban Alfrescian Old Timer

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    http://mil.news.sina.com.cn/jssd/2018-01-16/doc-ifyqrewi5550124.shtml

    这项技术拿下我国发明最高奖 可实时监控美航母动向
    这项技术拿下我国发明最高奖 可实时监控美航母动向

    0
    [​IMG]
      1月8日,2017年度国家科学技术奖励大会在人民大会堂举行,我国四川成都光电所牵头完成的项目获国家技术发明奖一等奖(专用项目),这是光电所连续两年折桂该奖项,而拿下国家发明大奖的项目名称有点让人看不懂——“用于对地遥感卫星的先进空间微结构亚波长薄膜相机技术”,这里面什么是微结构亚波长薄膜相机?一层薄薄的薄膜可以做相机镜头?而且是在太空中造出一个侦察卫星来?怎么做到的呢。军事专家陈忠告诉记者,为了满足高轨道卫星高分辨率对地观测的要求,特别是新一代高性能侦察卫星的需要,美国、俄罗斯、法国和日本等国从上世纪末就开始研究新型光学成像技术,包括大口径单体反射镜成像技术、空间分块可展开反射成像技术、衍射成像技术、基于卫星编队的光学干涉合成孔径成像技术和稀疏孔径成像技术等,目前,前三类技术逐步走向工程化实施阶段,后两类技术由于技术难度过大,发展较为缓慢,还停留在实验室研究阶段。

    [​IMG]
      图片为我国自行研制的超大尺寸巨型光学反射镜,尺寸达到2.4米级主反射镜。

      希望通过增大成像镜片的尺寸来看的更清楚更远,目前世界常见的侦察卫星的轨道高度在400至900千米左右,其中最强的已美国“锁眼”-12后续卫星经可以实现0.05米级的成像分辨率,但这种卫星的镜头直径2米,整个卫星重达10多吨,其能看到的范围有限,类似于“锁眼”-12和“8X”(美军秘密雷达光学一体侦察卫星)这样的高级大型光学成像侦察卫星虽然可以采用低轨道提供了较高的分辨率,但这也使得常规低轨道光学成像侦察存在卫星重访同一个侦察地区的周期过长、覆盖侦察地域的范围小等缺点。我们以“锁眼”-12的运行周期为91分钟,这实际上等于一颗“锁眼”-12卫星对指定的某个区域侦察过顶时间只有不到2次,除非增加更多卫星,否则地面目标和人员完全可以对卫星侦察实施反侦察和战术规避。

    [​IMG]
      如果需要建立一个全球监控卫星群,需要几十颗这样的卫星,那样的造价就是个天文数字,只有一种可能性比较高的,办法就是制造一种具备高分辨率的地球同步轨道卫星,正所谓站的高,看的远,地球同步轨道卫星在距离地面36000千米的地方飞行,理论上在地球外轨道上的三颗等边均匀部署的地球同步轨道侦察卫星就可以实现全球同步侦察,但目前,这种侦察卫星的分辨率前仅为50米级,主要的原因是“光学镜片”不够大,成像能力不足,仅仅能在大海上发现航母这类大型目标,对于我国的要求肯定是不够的,虽然我国是世界上唯一拥有地球同步轨道侦察卫星的国家,但发展一种可以直接对美军海上航母编队的一举一动,都能实现实况直播的高级成像侦察卫星就显得十分重要了。

    [​IMG]
      为了解决这一问题,目前,世界各国主要采用大口径单体反射镜成像技术、空间分块可展开反射成像技术、衍射成像技术来解决看不清楚的问题,不过,对于反射成像系统,其反射镜必须经过镜坯研磨、轻量化、抛光、镀膜等复杂的加工工艺。美、欧等技术发达国家目前仅能制造3至4米级空间应用的单体反射镜,其中目前世界最大尺寸的碳化硅反射镜直径为3.5米,它就是法国为欧洲“赫歇尔”红外望远镜制造的主反射镜。但这个不是整体烧结的,而是分块烧制后机械拼接的,其镜片研制成本十分高昂,我国长春光机所在近年来通过攻关解决了大直径成像光学镜片的加工技术难关,已经可以制造4米级的碳化硅主反射镜,并采取一次性整体烧结成型技术,其重量仅为“世界第一镜片”的3分之一,而其分辨率将达到空前的1米级,如果一切顺利,这种新型地球同步轨道侦察卫星将在五年内升空。等等,这个和上面的薄膜没什么关系吧?对对,那个薄膜就更厉害了。

    [​IMG]
      衍射光学薄膜成像侦察卫星的想象图。

      上世纪90年代以来,美国国防先进研究项目局(DARPA)开始研制一种衍射光学薄膜技术,这层薄膜和我们常见的塑料大棚的材质类似,不过上面有一层层特殊涂层,增加了其强度以及反射成像能力,也就是一种可展开光学薄膜反射镜技术,装备有这种技术的卫星入轨后,就像在太空中撑开一个雨伞,甚至可以展开直径为20米的衍射光学薄膜,卫星凝视视场超过一千万平方千米,分辨率高达2.5米,如果制造成40米的“镜片”,就可以实现对航母上飞机和飞行人员的一举一动实施实况直播,几年前,美军的“莫尔纹”衍射光学薄膜技术项目开始研制5米口径光学薄膜成像系统的地面原理样机。2013年4月,美国劳伦斯-利弗莫尔国家实验室向鲍尔公司交付了6块边长约0.8米、面积约0.4平方米的梯形衍射薄膜。随后,鲍尔公司对6块薄膜进行了拼装,制成了主镜1/8扇区的衍射镜片,并开展了光学系统的测试工作,不过,美国人这次慢了。

    [​IMG]
      2014年,我国成都光电所首次完成了直径400毫米的薄膜望远镜研制,在国内首次实现了直径400毫米的微结构薄膜望远镜宽波段(0.49μm至0.68μm)成像系统的成功研制。目前,中科院光电技术研究所在科技部地球观测与导航专项——“静止轨道高分辨率轻型成像相机系统技术”支持下,获得了巨大技术突破,领先美国国防先进研究项目局接近5年的研制进度,目前,我国先进薄膜成像光学系统现阶段,正从原理样机研制到工程样机研制过渡,我国计划造2020年前率先完成13米级薄膜成像光学系统研制,2025年之前实现卫星升空。(作者署名:军情视野)

      推荐阅读:重磅一击!中国果断出手,终于开始收拾这只白眼狼了 详情请查看新浪军事官方微信,搜索微信公众号:sinamilnews
     
  17. COW flu

    COW flu Alfrescian Old Timer

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    Oh boy today yet again 2 more advanced spy satellites launched together, and these are live video capable.

    http://www.xinhuanet.com/photo/2018-01/19/c_1122284421_2.htm


    我国成功发射吉林一号视频07、08星
    2018年01月19日 14:37:04 | 来源: 新华网
    [​IMG]

      1月19日12时12分,我国在酒泉卫星发射中心用长征十一号运载火箭成功将吉林一号视频07、08星发射升空,卫星进入预定轨道,发射任务获得圆满成功。这是酒泉卫星发射中心执行的第100次航天发射任务。新华社发(杨晓博 摄)


    我国成功发射吉林一号视频07、08星
    2018年01月19日 14:37:04 | 来源: 新华网
    [​IMG]
      1月19日12时12分,我国在酒泉卫星发射中心用长征十一号运载火箭成功将吉林一号视频07、08星发射升空,卫星进入预定轨道,发射任务获得圆满成功。这是酒泉卫星发射中心执行的第100次航天发射任务。新华社发(杨晓博 摄)




     
  18. tun_dr_m

    tun_dr_m Alfrescian Old Timer

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    Ang Moh satellite FAILED to launch!



    https://spaceflightnow.com/2018/01/19/atlas-5-team-scrubs-launch-to-study-troublesome-valve/

    Atlas 5 team scrubs launch to study troublesome valve
    January 19, 2018 Stephen Clark


    [​IMG]
    Credit: ULA
    Launch of an Atlas 5 rocket from Cape Canaveral with a U.S. Air Force infrared surveillance satellite was scrubbed Thursday evening after engineers encountered a balky valve associated with the first stage’s liquid oxygen system.

    United Launch Alliance, a 50-50 joint venture between Boeing and Lockheed Martin, said the problem was narrowed to a ground system at Cape Canaveral’s Complex 41 launch pad. The countdown was paused to allow members of the Atlas 5 launch team to study a stuck fill-and-drain valve needed to fill the rocket’s first stage with liquid oxygen.

    Engineers investigated the problem before calling off Thursday’s launch attempt, which had a 40-minute window to blast off with the U.S. Air Force’s fourth Space Based Infrared System satellite heading for geosynchronous orbit more than 22,000 miles (nearly 36,000 kilometers) over the equator.

    ULA said in a statement that the flight “was scrubbed today due to a ground issue associated with the booster liquid oxygen system.”

    The company said another launch attempt was possible Friday, with another 40-minute window opening at 7:48 p.m. EST (0048 GMT), assuming the valve problem is resolved in time.

    There is a 90 percent chance of favorable weather for Friday night’s launch window, with a slight concern for cumulus clouds that could pass over the launch pad.

    The $1.2 billion SBIRS GEO Flight 4 satellite aboard the Atlas 5 rocket will finish the initial deployment of the Air Force’s new-generation missile-warning network. When complete, the constellation that will include a minimum of four SBIRS craft stationed in geosynchronous orbit and at least two infrared payloads in egg-shaped orbits aboard top secret National Reconnaissance Office spy satellites, providing polar coverage.

    [​IMG]
    The SBIRS GEO Flight 4 satellite before encapsulation inside the Atlas 5 rocket’s payload fairing. Credit: Lockheed Martin
    Built by Lockheed Martin, the SBIRS satellites carry sharp-eyed infrared sensors to detect heat plumes from rocket launches, feeding data to the military about the origin and trajectory of missiles that could be heading for U.S. territories, deployed troops, or allies.

    The infrared payloads are provided by Northrop Grumman.

    Three previous SBIRS satellites launched on Atlas 5 rockets in 2011, 2013 and 2017. The fourth will give the SBIRS fleet global coverage, replacing missile detection capabilities currently provided by older, previous-generation Defense Support Program satellites.

    Four “SBIRS HEO” piggyback sensor packages have launched on classified NRO spy satellites. Two are needed operational at any time.

    The Air Force has ordered two more SBIRS satellites for launch in 2021 and 2022 to improve coverage, and eventually replace the first two SBIRS geosynchronous spacecraft.

    “The succesful launch and operation of this fourth SBIRS GEO satellite will mark the completion of the SBIRS baseline constellation,” said Col. Dennis Bythewood, director of the remote sensing systems directorate at the Air Force’s Space and Missile Systems Center. “SBIRS is intended to replace the legacy Defense Support Program satellites that have been providing missile warning for worldwide missile launches since 1970.
    “The SBIRS constellation delivers timely, reliable and accurate missile warning and surveillance information to the president, the secretary of defense, combatant commanders, the intelligence community and other key decision-makers across our nation,” Bythewood said in a pre-launch briefing with reporters.
    The Atlas 5 flight with SBIRS GEO Flight 4 will mark the first of the year for ULA’s workhorse rocket, and the 75th Atlas 5 launch overall since it debuted August 2002.
    Email the author.

    Follow Stephen Clark on Twitter: @StephenClark1.


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  19. tun_dr_m

    tun_dr_m Alfrescian Old Timer

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    This video leaked the secret that the Long March type #11 space satellite carrying rocket is same as DF-41 ICBM!

    The launch this week included 2 spy satellites (吉林series 1, #7&#8 plus 4 other smaller satellites. 6 satellites in a single rocket same.

    Important difference is this is a Solid Fuel Rocket same as ICBM DF-41, many had been mass produced and stock up with long shelf-life and can be used to launch satellite or warheads within SHORTEST TIME. Satellite Launch can be ready within 24Hr instead of 1 month in the case of liquid fuel rockets. This means in war time, China can rapidly replenish war stricken satellites or suddenly deploy unexpected new satellites of unexpected orbit, just for the war. Enemy caught by surprises. These can be spy or navigation or communication or attack satellites (laser & signal & star war satellite killer). These war satellites could had already been produced and in stock, and many can be launched within very short time.
     

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