Source: Xinhua| 2019-03-21 20:38:42BEIJING, March 21 (Xinhua) ...Zhang Kejian, vice minister of industry and information technology and head of SASTIND and CNSA, said at a press conference that after the launch of the Gaofen-7 satellite later this year, China will complete the construction of its space-based Earth observation system with seven high-resolution satellites...
Launch scheduled for November 2019 according to 9ifly.BTW past data gives the satellite mass as 2400 kg with the orbit altitude at 500 km, so (confirmed by official reports) this will be launched on a CZ-4B out of Taiyuan instead.
[Forward congratulations! #高分七号星发射成功# The[mighty] reporter learned from the National Space Administration that at 11:22 today, China successfully launched the high-scoring satellite No. 7 with the Long March 4B carrier rocket at the Taiyuan Satellite Launch Center. The high-scoring satellite No. 7 is China's first civilian sub-meter optical transmission stereo mapping satellite. After the star runs, it will play an important role in land surveying and mapping, urban and rural construction, and statistical surveys. (CCTV reporter Li Xia)
Our Space has deleted their photo and video posts. Here's hoping it doesn't mean anything...
1 44703U 19072A 19307.26107553 -.00000072 00000-0 00000+0 0 99952 44703 97.4860 20.0004 0011496 267.9276 150.8970 15.22978440 13
Report on one the satellites. Article says that 精致一号/Jingzhi 1/Exquisite 1 was launched in November 2017, but I can't find the corresponding launch for this.The series' debut star, the Exquisite One satellite, was successfully launched in November 2017 and has been in orbit for two years so far. High-score remote sensing "exquisite high score" satellite platform weighs about 30KG, load carrying capacity of up to 60KG, maximum load power is not less than 200W.https://mp.weixin.qq.com/s/gYYHdZqeqfW9Vccfcdscow
So why is there a quite noticeable exhaust contrail?
Quote from: eeergo on 11/03/2019 08:49 amSo why is there a quite noticeable exhaust contrail?n2o4 venting? Maybe trying to avoid the smashdown boom that the gridfinned lm2c had or perhaps using it as a visual indicator to find it more easily?
Quote from: tehwkd on 11/03/2019 09:32 amQuote from: eeergo on 11/03/2019 08:49 amSo why is there a quite noticeable exhaust contrail?n2o4 venting? Maybe trying to avoid the smashdown boom that the gridfinned lm2c had or perhaps using it as a visual indicator to find it more easily? Doesn't look reddish (could be the illumination though), looks almost like a hidrocarbon-rich sooty exhaust similar to an aircraft's. Just wondering if there's any open loop separate system powering the fins that may be causing it.
China's @CGWIC Long March 4B rocket launches Chinese smallsat builder #Spacety 6U cubesat carrying 1st solid-iodine propulsion unit from @ThrustMe_ of France. Satellite has deployed & is communicating. Switch-on & results from ThrustME unit expected w/in a week.
The correct transcription for the Tianyi satellite is Dianfeng.
Quote from: Liss on 11/03/2019 02:26 pmThe correct transcription for the Tianyi satellite is Dianfeng.So, Xianxiang-1-8 is incorrect or Dianfeng is another designation for the satellite?
Report on one the satellites. Article says that 精致一号/Jingzhi 1/Exquisite 1 was launched in November 2017, but I can't find the corresponding launch for this."On November 3, 2019, at 11:22:39, the Long March 4B carrier rocket ignited at the Taiyuan Satellite Launch Center, successfully carried out a four-star launch, successfully put the exquisite high-score test satellite into a predetermined orbit, the exquisite high-score test satellite is the second satellite of the exquisite microsatellite platform, It is also the first application of the platform on high-score remote sensing payloads....The series' debut star, the Exquisite One satellite, was successfully launched in November 2017 and has been in orbit for two years so far. High-score remote sensing "exquisite high score" satellite platform weighs about 30KG, load carrying capacity of up to 60KG, maximum load power is not less than 200W."https://mp.weixin.qq.com/s/gYYHdZqeqfW9Vccfcdscow
Dianfeng means 'summit' I gather?
The first satellite is called 精致高分试验卫星 or Exquisite High-score Test Satellite or Jingzhi Gaofen Shiyan Weixing.The second satellite is called 苏丹科学实验卫星一号 or Sudan Scientific Experimental Satellite 1.The third satellite is called 潇湘一号08星 or Xiaoxiang-1 08.http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=14212&pid=688559Space insightsToday 11:53 From SpaceNews Superword EditedLaunch Forecast: Tomorrow (November 3) at noon, China will launch the High Score 7 satellite and three small satellites with the Long March IV B carrier rocket at the Taiyuan Satellite Launch Center. The three small satellites are the exquisite high-score test satellite developed by Shanghai Aerospace Technology Research Institute, the Development of Sudan Science Experimental Satellite One by Shenzhen Aerospace Oriental Red Sea Satellite Co., Ltd., and the Xiang-1 08 star developed by Changsha Tianyi Space Science and Technology Research Institute Co., Ltd.
What google is translating as "Shenzhen Aerospace Oriental Red Sea Satellite Co., Ltd" is Shenzhen Aerospace DFH HIT Satellite Co Ltd
Jingzhi Gaofen Shiyan Weixing = Huangpu-1 (黄埔一号)first experimental satellite for a planned 90 satellite LEO-constellation (named Dawan Zhitong or Grand Bay Zhitong)source: http://scitech.people.com.cn/n1/2019/1103/c1007-31434697.html
A remaining mystery is this Sudan Science test satellite. ? I haven't been able to find any evidence of a China-Sudan joint satellite technology agreement although it seems plausible. It doesn't seem to be a mistranslation since the English xinhua article http://www.xinhuanet.com/english/2019-11/03/c_138525378.htm explicitly says it's developed for Sudan. If so, the National Centre for Research and the Sudan Univ. of Science and Tech in Khartoum seem likely participants.
Quote from: Steven Pietrobon on 11/03/2019 03:43 amGrid fin!http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=14212&pid=688818Interesting: it seems the grid fins for this flight are made in titanium alloy (like F9-B5's?), but not forged -- instead laser-welded into shape from 38 individual pieces by a 6-axis robot. Also, the fins used in this flight are a different (in which way) from July's CZ-2C's.https://mp.weixin.qq.com/s/h50mmOiCPyPhzA4OC4Z76A
Close up look at the grid fins on a Long March 4B launched in November, with engineer Chen Xuewei. These apparently reduced the target drop zone by 85%. Images: SAST mp.weixin.qq.com/s/ReFpPyolP6n6…
An earlier look:
Quote from: Satori on 08/21/2020 12:28 pmFrom Xinhua,Where is this?