Thanks for the alert Liss!!!Any idea of what kind of satellite this new remote sensing bird could be?
SAST is announced as the spacecraft producer.
Has the upper stage been catalogued or not?
Quote from: GW_Simulations on 04/22/2009 02:57 pmHas the upper stage been catalogued or not?Here are the objects catalogued to date:Catalogue Orbital Orbital Orbital Perigee Apogee Arg of Number Epoch Inclination Period Perigee deg min km km deg--------------------------------------------------------------------------34839 2009 Apr 22.16 97.65 94.63 485 517 31234839 2009 Apr 22.24 97.64 94.69 487 520 32334839 2009 Apr 22.39 97.64 94.70 487 521 32234839 2009 Apr 22.52 97.63 94.69 486 521 32134840 2009 Apr 22.16 97.61 94.71 430 580 32034840 2009 Apr 22.30 97.61 94.77 434 582 32134840 2009 Apr 22.30 97.61 94.77 434 582 32134840 2009 Apr 22.49 97.61 94.77 431 584 32134841 2009 Apr 22.16 97.83 96.00 488 646 22134841 2009 Apr 22.30 97.82 96.03 491 646 21934841 2009 Apr 22.37 97.84 96.04 491 646 22134841 2009 Apr 22.50 97.84 96.03 491 646 22134842 2009 Apr 22.23 97.43 93.39 343 538 31534842 2009 Apr 22.43 97.41 93.39 342 538 31434842 2009 Apr 22.58 97.40 93.39 343 538 31334843 2009 Apr 22.23 97.91 93.31 329 543 31834843 2009 Apr 22.31 97.87 93.32 332 542 31834843 2009 Apr 22.42 97.83 93.30 337 535 31634843 2009 Apr 22.51 97.83 93.31 336 538 315
Yaogan-6 Launch Videohttp://vod.cctv.com/html/media/worldwidewatch/2009/04/worldwidewatch_300_20090422_18.shtml
Quote from: jan_carlo_bascu on 04/22/2009 05:23 pmYaogan-6 Launch Videohttp://vod.cctv.com/html/media/worldwidewatch/2009/04/worldwidewatch_300_20090422_18.shtmlThis one is probably better, having animation of solar panels deployment: http://space.tv.cctv.com/video/VIDE1240408837000110Is the launch time 10:55:04.562 or so?
Images show launch from Pad 1
Is the launch time 10:55:04.562 or so?
According to a congratulatory letter from Chinese academy of science, it is a radar satellite--JB-7.
Quote from: blackjack on 04/24/2009 10:27 amAccording to a congratulatory letter from Chinese academy of science, it is a radar satellite--JB-7.Oh well :-)It'd be interesting to see the letter, even in Chinese.
Well, I cannot see words 尖兵七号 in it, so I understand you that the congratualtion says about radar satellite without specifying its name.
According to newspaper, the main stylist of the satellite called "YG-6" is "李晔", the engineerring stylist is "魏钟铨". As I know, they are the stylists of JB-7 in plan.
in http://www.china-spacenews.com/n435777/n502211/56052.html I can find three names:总指挥 颜履杰、= satellite commander in chief Yan Liujie总设计师 李晔讲述 = satellite chief designer Li Ye工程总师 魏钟铨 = ... Wei Zhongquan
Quote from: Liss on 04/22/2009 08:39 pmQuote from: jan_carlo_bascu on 04/22/2009 05:23 pmYaogan-6 Launch Videohttp://vod.cctv.com/html/media/worldwidewatch/2009/04/worldwidewatch_300_20090422_18.shtmlThis one is probably better, having animation of solar panels deployment: http://space.tv.cctv.com/video/VIDE1240408837000110Is the launch time 10:55:04.562 or so?Thank you for the link, Igor. The satellite as depicted only shows a box-shaped body and a pair of solar panels unfolding: no radar antenna or other instrumentation visible.I wonder whether the animation represents the true satellite or whether it is simply a generic satellite design, simply to show something being put into orbit?And Jonathan, you could well be right about the second stage de-orbiting itself but leaving the separation motor covers in orbit. As you say, the decay rates sh is ould give us a clue.
I attached 2 images of Shijian-7, which have been published on commemorative items issued by Beijing Institute Tracking & Telecom Technology (BITTT) and Xian Satellite Control Center (XSCC). SJ-7, launched in 2005, was also bulit by Shanghai Academay. The similarity to the spacecraft depicted in the YG-6 launch video is obvious. Maybe SJ-7 and YG-6 use the same satellite bus.Gert
To compare, find attached a SJ-7 mockup (Beijing exhibition last year)I agree about the specific propulsion system of SJ-9 (ionic following Zhuhai 2008) but if Yaogan-6 is SJ-9, I cannot understand the size parameter : SJ-9 is a small satellite.So I have some doubts about the Yaogan-6 platform
Very interesting to see these images, thank you! - I cannot recall a decent depiction of Shijian 7 before. That satellite is still occasionally manoeuvring in orbit, and I had it logged as being some kind of propulsion system test...
Quote from: Phillip Clark on 04/26/2009 05:09 pmVery interesting to see these images, thank you! - I cannot recall a decent depiction of Shijian 7 before. That satellite is still occasionally manoeuvring in orbit, and I had it logged as being some kind of propulsion system test...Phillip, there are indications on a Chinese forum http://www.fyjs.cn/viewarticle.php?id=166801 that SJ-7 is the testbed for an space-based early warning system.