中国为法国发射了一颗卫星！（挺频繁的呵！）
China Launches French Satellitehttp://english.cri.cn/mmsource/images/2005/08/10/photo.gif 2007-07-05 20:46:30 Xinhuahttp://english.cri.cn/mmsource/images/2007/07/05/4583_carrierrocket0705.jpgChina's carrier rocket, Long March-3B, carrying "Chinasat 6B", a French-made communications satellite, is ready to blast off from Xichang in southwest China on Thursday, July 5th, 2007."Chinasat 6B", a French-made communications satellite, rocketed into space from Xichang Satellite Launch Center in southwest China's Sichuan Province on Thursday.
The satellite was lifted by a Chinese Long March-3B carrier rocket which blasted off at 8:08 p.m. (Beijing Time) Thursday. It was the 101st launch mission for the Long March series of carrier rockets.
The satellite separated from the rocket 26 minutes after lift-off, entering its preset orbit.
"Chinasat 6B", manufactured by France's Alcatel Alenia Space, has a designed lifespan of 15 years.
Fitted with 38 transponders, the satellite is expected to improve telecommunications transmission for Asia, the Pacific and Oceania.
China on June 1 launched "SinoSat-3", a communications satellite for radio and television broadcasting, with a Long March-3A carrier rocket, the 100th flight of the Long March series.
据说现在要加快到每月１－３发的频率（还是３-５？ 不记得了）
[ 本帖最后由 张瀚 于 2007-7-6 00:11 编辑 ] 老毛子的记录是同一放射场间隔15分钟发射两颗火箭，能打破就牛了！yct56.gif 发那么多以后哪个卫星轨道偏差了会不会在天上撞车啊？？？呵呵～～～
回复 #4 lazybonebelle 的帖子
好象地球静止轨道有可能, 该轨道离地高度是35786千米, 是固定的, 空间资源比较有限 嗯嗯::bye:: 我继续看transform，太慢了网速 最终要达到象机枪一样, 一梭子一梭子地发卫星 用户: 张瀚 在文中写到:好象地球静止轨道有可能, 该轨道离地高度是35786千米, 是固定的, 空间资源比较有限
你卫星多大啊？？怎么能撞上呢？？？卫星都有防撞装置的::hairsmile:: 用户: ALMACH 在文中写到:
最终要达到象机枪一样, 一梭子一梭子地发卫星
发那么多卫星干什么？ 原帖由 Sunjune 于 2007-7-6 07:06 发表 http://www.astronomy.com.cn/bbs/images/common/back.gif
你卫星多大啊？？怎么能撞上呢？？？卫星都有防撞装置的::hairsmile::
以目前的技术来说，安全的角度好像是5度。按5度来计算，全天上最多只能有72颗同步卫星。同步轨道就那么一条（理论上是一个固定的圆）所有同步卫星都在这一轨道上（就好像火车轨道一样，后面的赶上来就一定能撞上前面的）。只要有哪一卫星走得快那么一点或慢那么一点就有可能撞上前面或后面的卫星。
防撞装置是相对于几微米大小的陨石的，毫米级的陨石撞上卫星都可能会毁坏卫星。空间站对接的时候速度才几厘米每秒。 没错, 同步轨道资源是有限的,卫星多了撞上不是没可能
ISS对接的速度是相对速度 抢占有限的太空资源啊,为什么这些国家都竞相往天上打卫星,就是占位置啊!
页:
[1]