NASASpaceFlight.com Forum
International Space Flight (ESA, Russia, China and others) => Chinese Launchers => Topic started by: Galactic Penguin SST on 11/21/2019 02:36 pm
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https://twitter.com/LaunchStuff/status/1197516706991820800 (https://twitter.com/LaunchStuff/status/1197516706991820800)
https://twitter.com/LaunchStuff/status/1197528656698134529 (https://twitter.com/LaunchStuff/status/1197528656698134529)
Chinese sources do anticipate an LM-4C launch in recent days so this would fit.
Alas no payload can be identified with it - the only known choice, FY-3E, doesn't fit with the launch time (06:00 LT at desc. node SSO would require a T-0 closer to 22:45 UTC). So, um, something else maybe?
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As of this post, we have two or more mystery payloads launching on the same UTC date!
(This launch and the Soyuz-2-1v/Volga launch from Plesetsk)
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EDITs 11/24 11/25: Three Two One orbital launches scheduled for 11/25 UTC!
The Kosmos launch from Plesetsk, VA250 from Kourou, and this launch.
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If this launch is a Long March 4C then Fengyun 3E seems like the most likely payload because of this document from earlier in the year: http://www.unoosa.org/documents/pdf/psa/activities/2019/UNChinaSymSDGs/Presentations/FY_Programs_Applications_short.pdf
It states on the second last page that the Fengyun 3 satellites will have a "Early Morning", "Morning", and "Afternoon" orbit. Fengyun 3A and Fengyun 3B were both R&D satellites as stated by the document while satellites after Fengyun 3C are operational satellites. Fengyun 3C is in the "Morning" orbit while Fengyun 3D is in the "Afternoon" orbit. The launch time of this mission (around 08:00 Chinese time) matches up with to the proposed "Early Morning" orbit. The Document also says that Fengyun 3E is planned to be launched before the end of the year.
I guess we have to wait and see if this is the payload on this mission. :-X
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There are reports that this launch's payload will receive a Ziyuan-XX designation.
Apparently there were previous reports of a 1 meter resolution C-band radar satellite planned for SASTIND, so maybe this is it? The early morning local launch time fits with the polar orbit used by radar satellites.
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Judging from launch time, the planned LTDN is 07:00.
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Could it be:
2019
?? - CZ-4B - TSLC, LC9 - ZY-3 Ziyuan-3 (3)
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Could it be:
2019
?? - CZ-4B - TSLC, LC9 - ZY-3 Ziyuan-3 (3)
If so, it's launching to a SSO with a different LTDN--0700 vs. 1030.
Gaofen-7 (https://forum.nasaspaceflight.com/index.php?topic=36437.0) launched at 03:22 UTC.
Gunter lists Gaofen-7 (https://space.skyrocket.de/doc_sdat/gf-7.htm) as a similar, yet improved Ziyuan-3 (https://space.skyrocket.de/doc_sdat/zy-3.htm).
The previous 2 ZY-3's were launched to SSO's with a LTDN circa 10:30 am (https://directory.eoportal.org/web/eoportal/satellite-missions/v-w-x-y-z/zy-3a). Both launched at 03:17 UTC.
(LTDN = local time descending node)
ZY-3 #1 launch thread (https://forum.nasaspaceflight.com/index.php?topic=26375.0)
ZY-3 #2 launch thread (https://forum.nasaspaceflight.com/index.php?topic=33321.0)
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Could it be:
2019
?? - CZ-4B - TSLC, LC9 - ZY-3 Ziyuan-3 (3)
If so, it's launching to a SSO with a different LTDN--0700 vs. 1030.
Gaofen-7 (https://forum.nasaspaceflight.com/index.php?topic=36437.0) launched at 03:22 UTC.
Gunter lists Gaofen-7 (https://space.skyrocket.de/doc_sdat/gf-7.htm) as a similar, yet improved Ziyuan-3 (https://space.skyrocket.de/doc_sdat/zy-3.htm).
The previous 2 ZY-3's were launched to SSO's with a LTDN circa 10:30 am (https://directory.eoportal.org/web/eoportal/satellite-missions/v-w-x-y-z/zy-3a). Both launched at 03:17 UTC.
(LTDN = local time descending node)
ZY-3 #1 launch thread (https://forum.nasaspaceflight.com/index.php?topic=26375.0)
ZY-3 #2 launch thread (https://forum.nasaspaceflight.com/index.php?topic=33321.0)
XY-XX would be the first radar sat in the series if all info is indeed correct.
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Judging from launch time, the planned LTDN is 07:00.
ZY-XX would be the first radar sat in the series if all info is indeed correct.
Function drives form.
A SSO with LTDN of 0700 would be near a dawn/dusk LTDN SSO?
Such an orbit also allows a fixed solar array to be (nearly?) constantly illuminated? One less drive to fail?
SARsats need substantial electrical power for radar emission, and IIRC there are other SARsats utilizing similar orbits.
QED?
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Notam removed ~19h before window open
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SFF is giving 30 November as the launch date, but that just might be because that's the end of the month. They are also saying the launch is a CZ-4C.
http://www.spaceflightfans.cn/event/china-long-march-4c-rocket-launch-satellite-2?instance_id=2920
9ifly thread is giving 2X November as the launch date.
http://www.9ifly.cn/forum-7-1.html
The control ship is apparently still in the area for a CZ-4C launch.
"Yuan Wang 7 is also in the 4C measurement and control area."
http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=92804&pid=695340
"As of tonight, Yuan Wang 7 is still hovering in the sea."
http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=92804&pid=695349
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Yuan Wang 7 is located off the west coast of Australia.
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One insider just posted on a forum that the launch "should be in 3 days' time" so expect this to happen around November 28 UTC. (http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=92804&pid=695384)
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Someone else is saying 30 November, but that looks to be replying on the SFF page.
"Put off until the 30th."
http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=92804&pid=695393
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A6027/19 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY: N301025E1093733-N300749E1095600-N293025E1094858-N293301E1093039 BACK TO START.VERTICAL LIMITS:GND-UNL. ALL ACFT SHALL BE FORBIDDEN TO FLY INTO THE RESTRICTED AREA. GND - UNL, 27 NOV 23:45 2019 UNTIL 28 NOV 00:10 2019. CREATED: 26 NOV 10:33 2019
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We're now within the NOTAM window.
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Nothing yet so far.
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Launch should be happening about now.
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Its the end of the window. No reports of launch yet on 9ifly.
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Launch!
http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=92804&pid=696032
"Lin Xiaoyi
2 minutes ago from Weibo Video
At about 07:52 BST on November 28, 2019, China carried out a space launch mission at the Taiyuan Satellite Launch Center."
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Launch at 23:52UTC.
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Liftoff!!!
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Launch video.
twitter.com/LaunchStuff/status/1199844285371289605
https://m.weibo.cn/s/video/index?object_id=1042151%3A4443514935671941&segment_id=4443514935671941
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Launch success! Payload is GF 12. Launch vehicle confirmed to be CZ-4C.
http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=92804&pid=696034
CCTV News
40 seconds ago from Weibo weibo.com
"Turn to congratulations!" China's successful launch of the high-scoring 12 satellite (Weiwu) today at 7:52, China in Taiyuan Satellite Launch Centre with the Long March 4C carrier rocket, the successful launch of the Gaofen 12 satellite. The satellite is in its intended orbit! The satellite is mainly used for land census, urban planning, land rights, road network design, crop estimation and disaster prevention and mitigation, etc., and can provide information guarantee for the construction of the Belt and Road and the modernisation of national defence. (CCTV reporter Qiao Quanxing) put away the full text d
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And...it turns out it's not Ziyuan but Gaofen 12! (http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=92804&pid=696034&fromuid=19646)
T-0 was 23:52 UTC.
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Full report.
http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=92804&pid=696036
On 28 November, at 0752 hours, China successfully launched the Gaofen 12 satellite with the Long March 4C carrier rocket at the Taiyuan Satellite Launch Centre. The satellite successfully entered its intended orbit and the mission was a complete success.
Gaofen 12 satellite is a high-resolution Earth observation system national scientific and technological major special arrangements of microwave remote sensing satellite, ground cell resolution up to the sub-meter level, mainly used in land census, urban planning, land rights, road network design, crop estimation and disaster prevention and mitigation and other fields, can be "belt and road" Construction and national defence modernisation provide information guarantee.
The Long March 4C carrier rocket and the Gaofen 12 satellite were developed by the Shanghai Aerospace Technology Research Institute, which is part of China Aerospace Science and Technology Group Co., Ltd.
This mission is the 320th space flight of the Long March series of launch vehicles
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Another international two-fer orbital launch date (UTC)!
(Cartosat-3 on a PSLV and this launch)
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Vehicle on the pad.
twitter.com/LaunchStuff/status/1199849169546035200
https://www.weibo.com/5616492130/Iig8rEODk
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Vehicle is Y33.
http://www.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=92804&pid=696040
2019-10-05/02:51
Gaofen 10
CZ-4C Y33
Taiyuan 9
Success
Gaofen 10 alternate stars have been launched
This is for the Gaofen 10R launch a couple months ago, not this one
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SAST built the satellite, and with "road network design" mentioned as one of the publicly disclosed usage I guess this is a radar one.
Could it be linked with other existing Chinese satellites I guess?
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Launch images.
twitter.com/LaunchStuff/status/1199851697847361536
https://www.weibo.com/6528178851/IigcjjH56?type=comment#_rnd1574902021837
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Rui's article!
https://www.nasaspaceflight.com/2019/11/long-march-4c-lofts-gaofen-12/
https://twitter.com/NASASpaceflight/status/1199859625203339264
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SAST built the satellite, and with "road network design" mentioned as one of the publicly disclosed usage I guess this is a radar one.
Could it be linked with other existing Chinese satellites I guess?
BTW there are rumors that YG-29/33, GF-10 and maybe this one are all of the same design (at least it's confirmed that YG-29, GF-10-2 and this one are all from SAST); if so the team lost 2 satellites in 3 years' time!
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CZ-4C s/n Y24 was used for this launch.
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China launched the Gao Fen 12 radar satellite with a CZ-4C from Taiyuan spaceport at 2352 UTC Nov 27. It has been cataloged as 44819/2019-082A in a 595 x 599 km x 97.9 deg, 0700 LTDN sun-sync orbit.
https://twitter.com/planet4589/status/1199874289694134272
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Launch Video:
https://www.youtube.com/watch?v=fH14rM35QvE
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No exact launch time :(
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From Xinhua,
China launches new Earth observation satellite (http://www.xinhuanet.com/english/2019-11/28/c_138588854.htm).
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Launch video
http://tv.cctv.com/2019/11/28/VIDEwxTMeUPFSZRfjMOp63qi191128.shtml
This time they didn't forget to blur the reflection of the data screen on the glass in the back of the control room ;)
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Video onboard YuanWang-7 control room showing blurred screen
http://tv.cctv.com/2019/11/28/VIDE7eHpEadmQzWZHJ6AtvKL191128.shtml
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Orbit has been raised
97.94° 97.21 min 623-628 km
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Still in motion:
97.92° 97.27 min 627-630 km