NASASpaceFlight.com Forum
International Space Flight (ESA, Russia, China and others) => Chinese Launchers => Topic started by: Galactic Penguin SST on 01/23/2021 04:53 am
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Yuan Wang 22 arrived with containers believed to be carrying parts of the 2nd Long March 7A at Qinlang port near WSLC today, for its reflight apparently scheduled in March.
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An Antonov An-124 flew from Beijing to Haikou, Hainan Island yesterday, presumably carrying the payload for this launch.
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Launch preparations of the CZ-7A (Y2) at Wenchang.
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Cross-post:
Spaceflightfans.cn is pointing March 11/13 for the launch of CZ-7A (Y2) with XY-6-02 from Wenchang.
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Spaceflightfans.cn now shows 12 March 18:00-23:30 local time (10:00-15:30 UTC).
http://www.spaceflightfans.cn/event/long-march-7a-launch-xy-6-02?instance_id=4139
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According to Spaceflightfans.cn, the launch will take place at 21:34 LT, that is 1334UTC on March 12.
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If launch is schedule for March 12, we can expect to see roll-out on March 9 (?).
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Roll-out is currently underway:
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Local police road closure notices (https://9ifly.spacety.com/forum.php?mod=redirect&goto=findpost&ptid=93994&pid=812487) now puts the launch a day earlier on March 11, the road closure time being a very vague midnight to midnight UTC.
No air/marine space closure notices to back this up yet.
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According to Spaceflightfans.cn, the launch will take place at midnight local, so 16:00UTC on March 11.
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According to Spaceflightfans.cn, the launch will take place at midnight local, so 16:00UTC on March 11.
http://www.spaceflightfans.cn/event/long-march-7a-launch-xy-6-02 (http://www.spaceflightfans.cn/event/long-march-7a-launch-xy-6-02) shows 16:00 - 21:30 UTC, however IIRC as of half a day ago the same page was showing 10:00 - 15:30 UTC.
Looks like we won't know until someone sees pad operations.... ::)
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we may finally have an hour to launch
I think it's 20:50 UTC but I'm not sure.
https://twitter.com/iBd6S77Ivw72xPk/status/1369815622192824323
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we may finally have an hour to launch
I think it's 20:50 UTC but I'm not sure.
https://twitter.com/iBd6S77Ivw72xPk/status/1369815622192824323
That's 1:50 am LT March 12 = 17:50 UTC.
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Live TV: https://live.bilibili.com/21694659
(via Andrew Jones)
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off topic
Still no NOTAM at this time but incidently a forecast for a "big" earthquake within Manila FIR from March 26 to June 25 :(
B0651/21 - AIRAC AIP SUP A002/20 EXTENDED.
ATM CONTINGENCY PLAN FOR EARTHQUAKE (BIG ONE) WI MANILA FIR. 26 MAR 00:00 2021
UNTIL 25 JUN 23:59 2021 ESTIMATED. CREATED: 11 MAR 03:20 2021
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Live TV: https://live.bilibili.com/21694659 (https://live.bilibili.com/21694659)
(via Andrew Jones)
Among the various comments on this live TV site:
Qiongyuan Asan: When will it be launched
C front loves Gao Hongbo: 1:50 in the morning
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Someone managed to dig this local marine space closure notice out - seems to support the 17:50 T-0 report:
HN0014 SOUTH CHINA SEA. MILITARY TRAINING IN AREA WITHIN5.5 MILES RADIUS OF 19-37.12N/110-57.32E FROM 111700 UTC TO 131900 UTC MAR.
ENTERING PROHIBITED.HAINAN M.S.A.CHINA.
https://www.msa.gov.cn/page/article.do?articleId=D880F847-363A-40E8-9540-4A0C12E62A25&channelId=D3340711-057B-494B-8FA0-9EEDC4C5EAD9 (https://www.msa.gov.cn/page/article.do?articleId=D880F847-363A-40E8-9540-4A0C12E62A25&channelId=D3340711-057B-494B-8FA0-9EEDC4C5EAD9)
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Yes, I also found it independently
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Fueling underway:
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Service platforms rotating back to launch position:
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Regarding this thingy named XJY-6-02, there are hints on what it can be, and there are guesses out there that seems to be very interesting:
* Back in October last year in an article from CASC this certain "XJY-6-02" was listed along with others as from CAST's new "Remote Sensing Satellite" sub-division, XJY-6 being the one dumped into the ocean on the 1st LM-7A flight last year. (https://mp.weixin.qq.com/s/vksJ0gJoG-CDUCEwi6w1fg (https://mp.weixin.qq.com/s/vksJ0gJoG-CDUCEwi6w1fg))
* Looks like there's another hint from another article mentioning the original XJY-6 (https://9ifly.spacety.com/forum.php?mod=redirect&goto=findpost&ptid=93994&pid=769925) (unfortunately I can't track down the original source) where one certain engineer Yu Kuai was mentioned. After more checking his name had appeared on a paper on removing vibrations on parts of high resolution, high orbit optical remote sensing satellites. (There are also reports that the program chief is a certain Li Jingdong who's known for leading optical observation satellite programs.)
* It seems to be a good fit for XJY-6 to be an optical observation satellite, and from other rumors it's going geostationary. We can also infer from the fact that it has to use the risky (as seen from last March) LM-7A instead of the proven LM-3B that it must be in the >5.5 tonnes to 7 tonnes range, something as big as on the limits of the Atlas V 421 or Falcon 9 ship recovery.
* What's even more interesting is that CAST's "Space Antenna Technology Laboratory" (https://mp.weixin.qq.com/s/tJmVAw_QrpCFaBbJd4uMIg) is involved with this thing. Of an optical satellite that's doing "New Technology Validation" as per its "XJY" name? ::) Well, Chinese forum discussions were already guessing if it's testing optical membrane lenses a la DARPA's MOIRE project (https://www.ball.com/aerospace/programs/moire), something similar that was already mentioned in Chinese academic papers in recent years. And with the Chinese very keen to put up large GEO observation satellites on the "higher ground" like GF-13 with dozen meter resolution, maybe they really want to try new things that would make these even sharper for 365/24/7 reconnaissance?
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Less than two hours to launch and the second hatch has already opened.
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Occasional feed on https://live.bilibili.com/21694659 (https://live.bilibili.com/21694659)
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Occasional feed on https://live.bilibili.com/21694659 (https://live.bilibili.com/21694659)
Apparently this feed has been terminated
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Via 9ifly Chinese space forum...
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https://twitter.com/iBd6S77Ivw72xPk/status/1370054417823637504
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Via 9ifly Chinese space forum...
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New live: You can join by downloading the Tencent Voov meeting app and entering code 562 937 574
I'm also restreaming the meeting to YouTube, for convenience:
https://youtu.be/oLuhexC96Qw
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Less than 20 minutes for launch now...
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Ten minutes for launch!
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Looks like it's foggy at Wenchang.
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7 minutes for launch...
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Launch is expected at 17:50UTC...
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In a few minutes venting will stop, pressurizing for flight...
T-4m
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T-3m...
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Venting stopped on the strap-ons. Pressing for flight...
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T-2m
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60 seconds...
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LAUNCH!!!
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And now waiting for official confirmation of a successful launch...
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Spacecraft separation should take place at T+30m 23s.
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Launch images...
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Beautiful CZ-7A before launch...
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And looks like we had a successful launch!!!
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CASC:
【长七A火箭成功发射！我国新一代运载火箭家族成员+1】3月12日1时51分，中国文昌航天发射场，我国新一代中型高轨液体运载火箭长征七号A 托举试验九号卫星升空，卫星顺利进入预定轨道，发射取得圆满成功。长七A火箭成功发射，标志着我国新一代中型运载火箭家族又添新成员。这是长征系列运载火箭的第362次飞行。（吴桐小雨摄）
[CZ-7A rocket successfully launched! A member of the Chinese new generation carrier rocket family +1] At 1:51 on March 12, China's Wenchang Space Launch Site, my country's new-generation medium-sized high-orbit liquid carrier rocket Long March 7A lifted up the Shiyan 9 satellite and the satellite entered smoothly the scheduled orbit and the launch was a complete success. The successful launch of the Chang-7A rocket marked the addition of a new member to the new generation of medium-sized carrier rocket family in my country. This is the 362nd flight of the Long March series of carrier rockets. (Photo by Wu Tong Xiaoyu)
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Well, the payload is officially named Shiyan 9 -- one should amend the topic name.
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https://twitter.com/ChrisG_NSF/status/1370084035708530692
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CASC official video posted on their weibo profile
https://twitter.com/conexionspacial/status/1370084170467270656
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Possible patch for the launch? (Taken from the 9ifly thread)
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launch time or planned launch time ?
17:51:21
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Possible patch for the launch? (Taken from the 9ifly thread)
Yes, it looks like...
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2021-019A/47851 in 251 x 35845 km x 19.53° (S/C)
2021-019B/47852 in 175 x 34563 km x 19.54° (CZ-7A upper stage)
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Launch video at https://tv.cctv.com/2021/03/12/VIDEf7OqETblb9ZisS7VXn49210312.shtml (https://tv.cctv.com/2021/03/12/VIDEf7OqETblb9ZisS7VXn49210312.shtml)
Launch code could be '07-W9'
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Exact launch time 17:51:28.409UTC
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起飞时间：2021-03-12 / 01:51:28.409
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https://news.sina.com.tw/article/20210312/37871438.html
The Shiyan-9 satellite launched this time will be mainly used for in-orbit verification tests of new technologies such as space environmental monitoring.
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launch time or planned launch time ?
17:51:21
Probably the time of ignition
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launch time or planned launch time ?
17:51:21
Time for pressing the Launch button.
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According to published TLE, yesterday, i.e. 6 days after launch, the satellite was still in its original GTO
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According to published TLE, yesterday, i.e. 6 days after launch, the satellite was still in its original GTO
I hope the LAE (Liquid Apogee Engine) didn’t malfunction.
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According to published TLE, yesterday, i.e. 6 days after launch, the satellite was still in its original GTO
I hope the LAE (Liquid Apogee Engine) didn’t malfunction.
To be more precise, perigee altitude was slightly increased less than 24 hours after launch from 250 km to 450 km, then nothing much happened
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March 20
473x35828 km
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According to published TLE, yesterday, i.e. 6 days after launch, the satellite was still in its original GTO
I hope the LAE (Liquid Apogee Engine) didn’t malfunction.
To be more precise, perigee altitude was slightly increased less than 24 hours after launch from 250 km to 450 km, then nothing much happened
Do we know for sure this sat is destined for GEO? It would not be unprecedented on a launch vehicle test flight to have a test satellite designed to stay in GTO, and do radiation measurements or something.
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According to published TLE, yesterday, i.e. 6 days after launch, the satellite was still in its original GTO
I hope the LAE (Liquid Apogee Engine) didn’t malfunction.
To be more precise, perigee altitude was slightly increased less than 24 hours after launch from 250 km to 450 km, then nothing much happened
Do we know for sure this sat is destined for GEO? It would not be unprecedented on a launch vehicle test flight to have a test satellite designed to stay in GTO, and do radiation measurements or something.
It's interesting to see Chinese discussions of exactly the same thing, except that - since the official description of it reminds of observing other in-orbit satellites - this GTO like orbit would mean that it can sweep around the GEO belt naturally without having to drift around GEO and coming close to targets in the initial survey phase.
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20 km variation in apogee and perigee, now in 497 x 35805 km x 19.7°
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The satellite took only 8 months from development to delivery, setting a new record for the development of large and medium-sized remote sensing satellites of the Fifth Academy of Aerospace Science and Technology Group
https://www.cast.cn/news/6973 (https://www.cast.cn/news/6973)
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Eight months after launch, Shiyan-9 remains in GTO at 510 x 35796 km x 19.9° (https://www.n2yo.com/satellite/?s=47851). Is there any new information about this satellite, or rather any signs of it being operational since March?
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Eight months after launch, Shiyan-9 remains in GTO at 510 x 35796 km x 19.9° (https://www.n2yo.com/satellite/?s=47851). Is there any new information about this satellite, or rather any signs of it being operational since March?
Between Mar 20 and Mar 30, 2022, Shiyan 9 went to a geosync orbit inclined at 19.7°.
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At epoch March 31,17:05 UTC:
2021-019A/47851 (Shiyan-9) was in 35733 x 35849 km x 19.72°
at 146.3°E close to TJS-7
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Obj. 47852 SHIYAN 9 (SY-9) CZ-7A R/B decay prediction: November 22, 2022 UTC 08h20mn ± 25h
https://twitter.com/jremis/status/1593513689151324161
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Update: obj. 47852 SHIYAN 9 (SY-9) CZ-7A R/B decay prediction: November 22, 2022 UTC 11h44mn ± 14h
https://twitter.com/jremis/status/1594262446377672705
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Update: obj. 47852 SHIYAN 9 (SY-9) CZ-7A R/B decay prediction: November 22, 2022 UTC 20h56mn ± 7h
https://twitter.com/jremis/status/1595000435743547392
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Update: obj. 47852 SHIYAN 9 (SY-9) CZ-7A R/B decay prediction: November 22, 2022 UTC 19h26mn ± 3h
https://twitter.com/jremis/status/1594999445988511746