NASASpaceFlight.com Forum
International Space Flight (ESA, Russia, China and others) => Chinese Launchers => Topic started by: Satori on 09/11/2014 02:48 pm
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TZ-1 Tianzhou-1 is schedule for launch in 2016. This will be the first Chinese logistics mission to a space station.
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From Xinhua: China to launch Tianzhou-1 cargo ship in 2016 to rendezvous with space lab (http://news.xinhuanet.com/english/2015-03/07/c_134046187.htm).
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From Xinhua: China to launch Tianzhou-1 cargo ship in 2016 to rendezvous with space lab (http://news.xinhuanet.com/english/2015-03/07/c_134046187.htm).
Tiangong-2 on the CZ-5? That's what the article says! Surely something is wrong here.
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Tiangong-2 on the CZ-5? That's what the article says! Surely something is wrong here.
Do we know yet how big TG-2 is going to be? If they've gone big, CZ-5 would be the only option, right?
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Tiangong-2 on the CZ-5? That's what the article says! Surely something is wrong here.
Do we know yet how big TG-2 is going to be? If they've gone big, CZ-5 would be the only option, right?
Tiangong 2 is supposed to be the TG 1 back-up with some modifications, so I would expect roughly the same mass.
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I had a look at Chinese language press - they say CZ-7. An error in translation then, most likely.
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This launch will be in April of 2017.
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papers on TZ-1 experiments:
Ground Experiment Study of Evaporation Phase Change for Space Experiment Device of TZ-1 Cargo Spaceship
http://www.cjss.ac.cn/EN/abstract/abstract2252.shtml
Ground-based Experimental Results of TZ-1 Matching Scientific Condensation Experiment
http://www.cjss.ac.cn/EN/abstract/abstract2261.shtml
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TG-2 / TZ-1 refuelling
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CZ-7
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China's first cargo spacecraft to leave factory (http://news.xinhuanet.com/english/2017-01/17/c_135990374.htm) (Xinhua)
"A review meeting was convened last Thursday, during which officials and experts unanimously concluded that the Tianzhou-1 cargo spacecraft had met all the requirements to leave the factory.
The take-off weight of Tianzhou-1 is 13 tonnes and it can ship material of up to six tonnes."
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Some images of TZ-1 (and what looks like a Shenzhou orbital module?) in ChinaSpaceFlight's twitter:
https://twitter.com/cnspaceflight/status/831085372687781888 (https://twitter.com/cnspaceflight/status/831085372687781888)
Arrived Feb 3rd in Hainan, mid-March scheduled for the CZ-7 carrier.
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Four propulsion system chambers at the rear, unlike two on Tiangong. Maybe because the cargo freighters are nearly twice the mass at launch?
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Some images of TZ-1 (and what looks like a Shenzhou orbital module?) in ChinaSpaceFlight's twitter:
https://twitter.com/cnspaceflight/status/831085372687781888 (https://twitter.com/cnspaceflight/status/831085372687781888)
Arrived Feb 3rd in Hainan, mid-March scheduled for the CZ-7 carrier.
That thing is probably the pressurized compartment of the 2nd TZ unit - wrong launch site for Shenzhou I'm afraid. ;)
Launch is scheduled for mid-late April.
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Video on TZ-1 showing brief look inside: https://www.youtube.com/watch?v=FZpUYmpmKWM
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Interesting shot of the interior. What's the point of all that cargo if there is no one on board Tiangong-2 to unload it?!
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Well either there is a robot on board or Tiangong-2 has two docking ports.
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Well either there is a robot on board or Tiangong-2 has two docking ports.
could be ballast in the bags or a loading test on the ground
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I think they're just doing a propellant transfer because Shenzhou 11 was the only manned mission to Tiangong 2, so I can't imagine food, water, and experiments being launched aboard Tianzhou 1.
http://english.cctv.com/2017/02/13/VIDEQ4VArzLRzzY2EkCBQHSI170213.shtml
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http://news.xinhuanet.com/english/2017-03/04/c_136101226.htm
China's 1st cargo spacecraft to make three rendezvous with Tiangong-2
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http://news.xinhuanet.com/english/2017-03/04/c_136101226.htm
China's 1st cargo spacecraft to make three rendezvous with Tiangong-2
Not only 3 rendezvous and dockings, but also 3 separate tests of the fuel transfer system as well. TZ-1 will remain docked with TG-2 for a total of 2 months, with another 3 months' time flying solo.
In other news, the CZ-7 rocket has left the plant for Wenchang yesterday. Interestingly a regular cargo ship is being used instead (http://www.marinetraffic.com/en/ais/details/ships/shipid:562848/mmsi:413425180/vessel:XU%20YANG%2016) of the special rocket transport ships the Chinese have..... ;)
Video of the ship leaving Tianjin port: http://tv.cntv.cn/video/C10166/7c7d9c7ce1f7451ca83d5bece42c9be7 (http://tv.cntv.cn/video/C10166/7c7d9c7ce1f7451ca83d5bece42c9be7)
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Chang Zheng-7 (Y2) for the Tianzhou-1 launch arrived today at Wenchang.
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[Map] Long March VII rocket arrived in Wenchang launch site can launch cargo spacecraft
http://www.spaceflightfans.cn/10764.html
Video：http://tv.cntv.cn/video/C10616/1e823f932e1e4be2aa6bcef0161ab2f5
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According to https://twitter.com/cnspaceflight/status/840490961268482048 (https://twitter.com/cnspaceflight/status/840490961268482048) rumors point to launch planned on April 23 at 10:20 UTC (can someone check if the orbital plane of TG-2 does cross Wenchang at that time?)
There will be cubesat deployer on board TZ-1 with at least 1 cubesat to be released during the mission.
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From Xinhua,
Long March-7 Y2 ready for launch of China's first cargo spacecraft (http://news.xinhuanet.com/english/2017-03/11/c_136120856.htm).
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via Chinaspaceflight (https://twitter.com/cnspaceflight/status/841240749479931904)
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I think I might be right here, but will Tianzhou docking with Tiangong 2 be the first time that a significantly heavier spacecraft has been the active partner in a docking operation?
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I think I might be right here, but will Tianzhou docking with Tiangong 2 be the first time that a significantly heavier spacecraft has been the active partner in a docking operation?
Automated/unmanned, probably.
Apollo + APAS was way heavier than Soyuz in the 1975 rendez-vous, and it was the active part for the two docking operations performed during the mission.
Besides, Shuttle would have been heavier than Mir in 1995, no?
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I think I might be right here, but will Tianzhou docking with Tiangong 2 be the first time that a significantly heavier spacecraft has been the active partner in a docking operation?
Automated/unmanned, probably.
Apollo + APAS was way heavier than Soyuz in the 1975 rendez-vous, and it was the active part for the two docking operations performed during the mission.
Besides, Shuttle would have been heavier than Mir in 1995, no?
Good point about Soyuz and Apollo. As for the shuttle orbiter and the Mir complex, I don't think that the ratio of the two masses was as great as that of Tiangong 2 and Tianzhou 1 which is approaching 2:1.
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Some images of TZ-1 (and what looks like a Shenzhou orbital module?) in ChinaSpaceFlight's twitter:
https://twitter.com/cnspaceflight/status/831085372687781888 (https://twitter.com/cnspaceflight/status/831085372687781888)
Arrived Feb 3rd in Hainan, mid-March scheduled for the CZ-7 carrier.
That thing is probably the pressurized compartment of the 2nd TZ unit - wrong launch site for Shenzhou I'm afraid. ;)
Launch is scheduled for mid-late April.
There are speculations that these are modules for the Chinese space telescope.
(https://uploads.tapatalk-cdn.com/20170315/365cc5ba832a059e0aa2aed560ab6044.jpeg)
(https://uploads.tapatalk-cdn.com/20170315/8feca54e3729c7eea1e182cb94baf128.jpeg)
http://www.popsci.com/chinas-answer-to-hubble-telescope
Sent from my iPhone using Tapatalk
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As far as I understand from the illustrations the planned sequence of joint TG-2 andTZ-1 flight activities is:
1. Launch of TZ-1
2. First docking with TG-2
3. Undocking of TZ-2 and flying around TG-1
4. Second docking with TG-2
5. Undocking of TZ-1
6. Third docking (a rapid one) with TG-2
7. Joint orbit change
8. Undocking of TZ-1 and separate flying
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Cross-posting from the Tiangong 2 thread.
During April 4-6 the orbit of Tiangong 2 was raised from 92.12 min, 374-382 km to 92.26 minutes, 379-391 km which is slightly above the 46-circuits repeating orbit period.
Presumably this is in preparation for the Tianzhou 1 launch - still scheduled for April 23?
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Cross-posting from the Tiangong 2 thread.
During April 4-6 the orbit of Tiangong 2 was raised from 92.12 min, 374-382 km to 92.26 minutes, 379-391 km which is slightly above the 46-circuits repeating orbit period.
Presumably this is in preparation for the Tianzhou 1 launch - still scheduled for April 23?
According to speculation here, in 23 April 19:40
http://www.spaceflightfans.cn/wp-content/uploads/2017/03/148990140.jpg
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According to speculation here, in 23 April 19:40
http://www.spaceflightfans.cn/wp-content/uploads/2017/03/148990140.jpg
Is that UTC or local? That image shows a date and time of 22 April 14:16:27. Assuming that is the local launch time, that gives a launch date and time of 22 April 06:16:27 UTC.
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Roll-out on 17th, launch on 20th
Very accurate information below
http://bbs.9ifly.cn/forum.php?mod=viewthread&tid=89195&mobile=0
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Roll-out on 17th, launch on 20th
Very accurate information below
http://bbs.9ifly.cn/forum.php?mod=viewthread&tid=89195&mobile=0
Like most people on here, I cannot read Chinese. So am I right in reading a launch time of 22:00 on April 20th, Beijing Time? That time seems to be rather "rounded".
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Roll-out on 17th, launch on 20th
Very accurate information below
http://bbs.9ifly.cn/forum.php?mod=viewthread&tid=89195&mobile=0
Like most people on here, I cannot read Chinese. So am I right in reading a launch time of 22:00 on April 20th, Beijing Time? That time seems to be rather "rounded".
That's end time of rocket party. In the likely scenario, Roll-out should be on 17th morning, and Launch in 19:40:45 20th, backup window on 23th, according to some calculation here
http://bbs.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=68618&pid=535438
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Roll-out on 17th, launch on 20th
Very accurate information below
http://bbs.9ifly.cn/forum.php?mod=viewthread&tid=89195&mobile=0
Like most people on here, I cannot read Chinese. So am I right in reading a launch time of 22:00 on April 20th, Beijing Time? That time seems to be rather "rounded".
That's end time of rocket party. In the likely scenario, Roll-out should be on 17th morning, and Launch in 19:40:45 20th, backup window on 23th, according to some calculation here
http://bbs.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=68618&pid=535438
April 20 and 23 fit with the Tiangong 2 orbit repeating every 46 circuits - just less than three days.
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The times above are local time, so T-0 will be around 11:40 UTC for April 20 and 10:18 UTC for April 23.
I'll translate the calculations for these co-planar launch times made at a Chinese spaceflight forum later.
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Heh, everyone here must be on holiday (including me), because I don't see any posts on the rollout - which has just been completed as I wrote! :P
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Heh, everyone here must be on holiday (including me), because I don't see any posts on the rollout - which has just been completed as I wrote! :P
Photos via CCTV:
http://news.cctv.com/2017/04/17/ARTIJOxd3V8pqkmWpLOZvtf1170417.shtml (http://news.cctv.com/2017/04/17/ARTIJOxd3V8pqkmWpLOZvtf1170417.shtml)
https://mp.weixin.qq.com/s/dFUBhLwH7X1j8Xd-xirS1Q (https://mp.weixin.qq.com/s/dFUBhLwH7X1j8Xd-xirS1Q)
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From Xinhua,
China's first cargo spacecraft Tianzhou-1 to be launched (http://news.xinhuanet.com/english/2017-04/17/c_136215664.htm).
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Some higher-res shots:
CZ-7转运。颜色太浓了
https://twitter.com/cnspaceflight/status/853913939695984641 (https://twitter.com/cnspaceflight/status/853913939695984641)
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https://www.youtube.com/watch?v=8QClnAqNMzU
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A TEMPORARY RESTRICTED AREA ESTABLISHED WITHIN A CIRCLE
CENTERED AT N1937E11057 WITH RADIUS OF 20KM, VERTICAL LIMITS:
GND-UNL. GND - UNL, 20 APR 11:31 2017 UNTIL 20 APR 11:50 2017. CREATED: 18 APR
07:40 2017
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Time given:
CGTNVerified account @CGTNOfficial 25m25 minutes ago
China to launch its first cargo spacecraft #Tianzhou1 at 11:41 a.m. GMT at Wenchang Space Launch Center in S. China’s Hainan #SpaceChina
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I am hoping that CCTV will be broadcasting the launch "live". It's only a few hours after the Russian Soyuz-MS 4 launch.
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Any idea if there is a schedule live coverage of the launch?
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Any idea if there is a schedule live coverage of the launch?
I think so. CCTV will probably follow the coverage method, i.e. something like SpaceX's technical stream on a separate stream (probably at newscctv.net/ (http://newscctv.net/); maybe someone will take that to YT like last time ;)) and then detailed coverage before and after the launch.
And even if CCTV pulls out unexpectedly these websites will probably be doing live coverages (it's Wenchang after all):
http://v.qq.com/live/p/topic/28211/preview.html (http://v.qq.com/live/p/topic/28211/preview.html)
http://v.qq.com/live/p/topic/28284/preview.html (http://v.qq.com/live/p/topic/28284/preview.html)
http://www.kankanews.com/z/2016kjz/index.shtml (http://www.kankanews.com/z/2016kjz/index.shtml)
http://news.cnr.cn/zt2017/qhtz/ (http://news.cnr.cn/zt2017/qhtz/)
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With this, it's time for moving to live coverage!
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Rui's article for this mission!
https://www.nasaspaceflight.com/2017/04/tianzhou-1-china-debut-cargo-resupply-tiangong-2/
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It looks like the CCTV reporters are doing some pre-launch coverage right now: http://www.newscctv.net/219h5/#/article?videoId=E7395D9F-A371-5FAE-E29D-5634AC2FF208 (http://www.newscctv.net/219h5/#/article?videoId=E7395D9F-A371-5FAE-E29D-5634AC2FF208)
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Getting some exciting footage of driving down to the launch site. :-)
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Got some reporting here
https://youtu.be/FaTrEWjuh4g
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The top platforms have been rotated.
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Docking animation.
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Showing both pads.
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T-2 hour 26 minutes.
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Getting coverage on http://v.qq.com/live/p/topic/28211/preview.html
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Bit of a murky view.
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It is still not clear to me whether TianGong and TianZhou share the same main struture. In many artist's impressions, the two vehicles seem to show different diameters of the widest (froward) section. Anyone have conclusive info?
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T-2 hours 14 minutes.
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NOTAM for Philippines area
B1413/17 - DUE TO SPACEFLIGHT ACT OF ATM BUREAU OF CAAC WI THE AREA BOUNDED BY THE FLW COORD: 15 20 37N 115 27 31E 15 44 17N 115 50 26E 14 24 17N 117 25 54E 13 54 30N 117 58 08E 13 23 15N 117 27 30E 13 52 57N 116 55 16E FM SFC TO UNL THE FLW RNAV RTE SEGMENTS CLSD: 1. ARESI L625 AKOTA ALTN RTE: LAXOR N884 LEBIX LAXOR N884 CAB B462 LAO M646 POTIB M765 MIA CAB N884 M765 MIA CAB B462 LAO M646 POTIB 2. ARESI L628 IBOBI ALTN RTE: M765 3. AKOTA M754 NOBEN ALTN RTE: SABNO A583 REKEL DCT LULBU M754 VINIK (VHHK-WBFC FIR) VINIK M754 LULBU DCT REKEL A583 SABNO (WBFC-VHHK FIR. 20 APR 10:30 2017 UNTIL 20 APR 12:15 2017. CREATED: 20 APR 01:55 2017
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Refueling.
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Separation. The shapes look the the same to me.
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Launch animation shows deployment of what looks like a cubesat.
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Have there been any indications when the first rendezvous and docking can be expected?
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It is still not clear to me whether TianGong and TianZhou share the same main struture. In many artist's impressions, the two vehicles seem to show different diameters of the widest (froward) section. Anyone have conclusive info?
Tianzhou has the same diameter as Tiangongs 1 and 2 but the Tianhe core module of the Tianzhou modular space station will be larger than Tianzhou. I have not seen a definitive Tianhe diameter quoted.
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It is still not clear to me whether TianGong and TianZhou share the same main struture. In many artist's impressions, the two vehicles seem to show different diameters of the widest (froward) section. Anyone have conclusive info?
AFAIK, they share the structure
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T-2 hours.
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Launch animation shows deployment of what looks like a cubesat.
That's it. A cubesat called silkway-1(丝路一号)
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Have there been any indications when the first rendezvous and docking can be expected?
A two-day rendezvous
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Prelaunch images.
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T-1 hour 45 minutes.
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Some sand drawings!
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Official live coverage
http://tv.cctv.com/live/cctv13/
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CCTV13 showing coverage.
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I seem to be getting a lot of buffering problems/freezing pictures from CCTV 13.
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Nice close up.
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I seem to be getting a lot of buffering problems/freezing pictures from CCTV 13.
Try
http://www.newscctv.net/219news/video.html?videoId=E7395D9F-A371-5FAE-E29D-5634AC2FF208
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From the Control Room.
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T-0 is set for 11:41:28 UTC.
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Current velocity of Winds is 3m/s
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T-1 hour 30 minutes.
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I seem to be getting a lot of buffering problems/freezing pictures from CCTV 13.
Try
http://www.newscctv.net/219news/video.html?videoId=E7395D9F-A371-5FAE-E29D-5634AC2FF208
Thank you but it's what I'm watching. Maybe it's a "local" problem.
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Payload preparation.
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From the Control Room.
Nice image from LCC
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I seem to be getting a lot of buffering problems/freezing pictures from CCTV 13.
Try
http://www.newscctv.net/219news/video.html?videoId=E7395D9F-A371-5FAE-E29D-5634AC2FF208
Thank you but it's what I'm watching. Maybe it's a "local" problem.
Same here, buffering or unable to get any of the channels. Is there a youtube stream?
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A current annoyance is that since mid-March Space-Track has only been posting the last TLE for objects each day and regularly the data are a day later than normal. I have raised this issue with them but it means that TLEs will be slow coming through for this launch until the problem is sorted and they won't be as detailed as we should be getting.
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Fan photos?
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Looks like a launch team photo.
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T-1 hour 15 minutes.
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Launch base.
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Launch time.
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Weather report! 20.8 C and 39.4% humidity. Don't know if that is at the launch site.
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Showing a countdown clock. T-1 hour 9 minutes.
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Weather report! 20.8 C and 39.4% humidity. Don't know if that is at the launch site.
That's the current conditions inside the rocket fairing, not the conditions outside. ;)
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I got no words.
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More cartoon fun and back to the launch site.
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Fan photos?
They were showing some WeChat Moments of rocket employees
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Bottom doors opening up!
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Bottom doors halfway open.
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Rollout photo.
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T-60 minutes.
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More work crew photos. Doors are nearly fully open.
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Live report.
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T-55 minutes.
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A bit of venting going on.
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T-50 minutes.
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Base of vehicle.
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Middle doors opening up.
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This will be by far the heaviest single payload launched by China: has anyone seen an accurate mass for Tianzhou 1 please?
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Doors open up quite quickly.
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Back view.
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Getting a full picture while we listen to commercials.
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Lots of people around the base.
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Seem's we changed channel.
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T-40 minutes.
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Close view of base.
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T-35 minutes. My feed is a bit stop and go, but that might be the senders end.
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Changed channel again I think. Getting elevator music.
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More views.
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Streaming quality is a general issue with Chinese sites - there apparently is a very fast network inside China, but any network links between China and rest of the world are... umm... less than perfect - some say, completely on purpose, to drive Chinese users to local sites and services. So if the streaming source is within China, it is very rare to get good quality when watching from outside China.
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T-30 minutes.
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Elevator music replaced with venting noises
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This must be the technical channel. :-)
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T-25 minutes. Hearing shouting in the background.
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Elevator music replaced with venting noises
Still better than the random burbling we get from NASA TV commentators!
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Elevator music replaced with venting noises
Still better than the random burbling we get from NASA TV commentators!
Which is why I watched the TsENKI feed for the Soyuz launch this morning, but OT.
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T-20 minutes.
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English language CGTN coverage now started here:
https://www.youtube.com/watch?v=FaTrEWjuh4g
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T-15 minutes.
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Wrong Dragon, CCTV ;)
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Talking about the competition.
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No love for Cygnus there.
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Modular Space Station.
T-10 minutes.
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T-9 minutes.
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T-8 minutes. Talking about why crew went before cargo.
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Coverage from China Daily
https://www.youtube.com/watch?v=I4T-O8NLyAA (https://www.youtube.com/watch?v=I4T-O8NLyAA)
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T-7 minutes.
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T-6 minutes.
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T-5 mins.
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Clean feed here also:
https://www.youtube.com/watch?v=n4yhYje78jU
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Another channel
https://youtu.be/Y8Wy9LXCapw
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T-5 minutes.
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T-4 minutes. Getting some shouts.
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T-3 minutes.
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Having a poke at the CRS-7 failure, per risks of launch.
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T-2 minutes.
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Pressed for flight.
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T-1 minute, but the feed looks like it is a minute behind.
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Umbilical retract
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Retracting arms.
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Liftoff!
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LAUNCH!
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T+1 minute.
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T+2 minutes.
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Booster sep.
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T+3 minutes. Booster separation.
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T+4 minutes.
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Some liftoff views.
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Tracking ships.
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T+5 minutes.
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T+6 minutes.
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And booster/core stage seps.
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T+7 minutes.
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Tianzhou-1 view (looking forward) just after fairing jettison.
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T+8 minutes.
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T+9 minutes.
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T+10 minutes.
Separation!
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Tianzhou-1 Separation!
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Engine off.
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Chatting through S/C Sep.
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Waiting for solar array deploy.
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Solar arrays deploying.
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Solar arrays deployed.
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Rotating solar arrays.
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Comms acquisition should be occurring through the new TianLian satellites ("Chinese TDRSS")
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MCC.
Congratulations to China on this awesome second launch of CZ-7 (first without the YuanZheng-1A kick stage) and their first space station automatic freighter!
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Launch time of 19:41:35.361 local.
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times
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Excellent coverage everyone (special shoutout to Steven as he's always in the middle of these great update threads).
Rui's article:
https://www.nasaspaceflight.com/2017/04/tianzhou-1-china-debut-cargo-resupply-tiangong-2/
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Congrats to the Wenchang Satellite Launch Center officials on the second launch of Long March 7 & Tianzhou 1.
The next event I'm looking forward to is the docking and refueling.
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Some happy generals.
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Awesome flight, cool rocket.
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Congratulations China!
Video of launch in HD:
https://www.youtube.com/watch?v=3sN0hX3ta-4
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Congratulations speeches.
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Announcing mission success!
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times
Are those really times? The 7837 looks more like a range or something - can someone translate?
I think the times for launch events are those attached here:
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A quick launch replay.
Congratulations to China for the successful launch of the second CZ-7 and first Tianzhou cargo spacecraft!
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Empty pad.
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times
Are those really times? The 7837 looks more like a range or something - can someone translate?
I think the times for launch events are those attached here:
Time
Longitude
Latitude
Altitude
Speed
White number are scheduled number and greens are the actual one.
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times
Are those really times? The 7837 looks more like a range or something - can someone translate?
I think the times for launch events are those attached here:
Time
Longitude
Latitude
Altitude
Speed
White number are scheduled number and greens are the actual one.
Thanks, that makes much more sense.
And the times posted above (173.0 to 601.2) are presumably: Strapons sep, Stage 1 MECO,
Stage 1 sep, Fairing sep, Stage 2 MECO, Stage 2 VECO, Stage 2 sep.
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times
Are those really times? The 7837 looks more like a range or something - can someone translate?
I think the times for launch events are those attached here:
Ok, I admit I was guessing ???
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Congratulations to all concerned in the launch of China's first automated cargo vessel.
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times
Are those really times? The 7837 looks more like a range or something - can someone translate?
I think the times for launch events are those attached here:
Time
Longitude
Latitude
Altitude
Speed
White number are scheduled number and greens are the actual one.
Thanks, that makes much more sense.
And the times posted above (173.0 to 601.2) are presumably: Strapons sep, Stage 1 MECO,
Stage 1 sep, Fairing sep, Stage 2 MECO, Stage 2 VECO, Stage 2 sep.
The forth is interstage separation
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The mass of TZ-1 was confirmed in the official broadcast as 12.91 tonnes.
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Congratulations to China for the second use of their next generation rocket!
This makes two launches to different space stations within one day! Is this a milestone in spaceflight?
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times
Are those really times? The 7837 looks more like a range or something - can someone translate?
I think the times for launch events are those attached here:
7837 is speed m/s
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Eric Berger's write-up:
https://arstechnica.com/science/2017/04/china-takes-a-key-step-toward-building-a-large-space-station/ (https://arstechnica.com/science/2017/04/china-takes-a-key-step-toward-building-a-large-space-station/)
Many congratulations to China. Fantastic to see continuing development of space capabilities in multiple countries. Long may it continue.
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Congratulations to the PRC and their organizations for their achievement, first automated cargo ship and a use of CZ-7... How nifty that we had two cargo launches on two consecutive days.
Thanks as always to all NSFers who helped with coverage...
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1st docking to TG-2 will be on April 22 at around 04:00 UTC, i.e. about 6 hours before Cygnus does.
Source (http://www.js7tv.cn/news/201704_92329.html)
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Photos via Xinhua:
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China Exclusive: Are human space babies conceivable? Tianzhou-1 experiment may give clue
2017-04-21 02:55:50 GMT2017-04-21 10:55:50(Beijing Time) Xinhua English
By Xinhua writer Yu Fei
BEIJING, April 21 (Xinhua) -- As astronauts continue to break records for time spent in space and manned Mars exploration is under discussion, scientists in China have begun a groundbreaking study to determine if humans can reproduce in space.
Scientists will for the first time conduct an experiment to induce the differentiation of human embryonic stem cells into germ cells on China's first cargo spacecraft, Tianzhou-1.
The experiment aims to study the effects of the space environment on human reproduction, beginning with the study of microgravity on human stem cells and germ cells, says Kehkooi Kee, lead researcher on the project.
Kee, a Malaysia Chinese professor at China's prestigious Tsinghua University, says the unprecedented experiment will study the basic development and maturation of germ cells in the micro-gravity environment, and the developmental potential of human embryonic stem cells.
The research is expected to provide a theoretical basis and technical support to solve the possible problems of human reproduction caused by the space environment, Kee said.
"It's an important experiment because it is the first step towards directly understanding human reproduction during space exploration," he says.
What kind of difficulties could people face by having children in space?
Experts say that in the known space environment, micro-gravity, radiation and magnetic fields could have a great impact on human reproduction. Among these factors, micro-gravity could be the largest challenge.
At the cellular level, micro-gravity might affect cell division or polarity. The cells of living organisms contain many organic molecules. These molecules and cells are evolved to function under the earth gravitational force. But scientists are still not clear how micro-gravity could affect the physical force governing the molecular interactions and developments of the cells, says Kee.
The United States, Russia and Europe have conducted many space experiments to examine if micro-gravity is harmful to astronauts, especially the effects on the muscle and bones. However, microgravity effect on human reproductive capacity has been rarely studied.
Previous research in this area mainly focused on monitoring the reproductive hormone levels of astronauts. Due to the ethical and physical constraints, it has been very difficult to directly obtain and study their germ cells.
"If we aim to directly study human reproductive biology in space, we need to build an in-vitro platform to study the germ cells. So we chose to use human embryonic stem cells to differentiate into germ cells," says Kee.
In 2009, he and his colleagues used human embryonic stem cells to create human primordial germ cells and sperm-like cells for the first time. They published their research in the academic journal Nature.
Currently, the team has successfully obtained egg-like cells from human embryonic stem cells and will be publishing this novel finding soon.
Human embryonic stem cells can be induced into primordial germ cells and further differentiate into sperm-like or egg-like cells. But differentiating embryonic stem cells into sperm-like or egg-like cells is very difficult because they require more developmental steps and more cellular factors, says Kee.
Although other scientists have conducted similar experiments, none has made human germ cells differentiate into such a mature state as Kee's team has.
"We have compared the in-vitro cultured cells with in-vivo cells, and found they have many similar characteristics. But we can only call the in-vitro ones sperm-like cells or egg-like cells, because we still can't prove they are exactly the same until we conduct functional experiments," Kee says.
So far, all such experiments have been conducted on the ground, so scientists do not know whether micro-gravity will affect the differentiation of human embryonic stem cells and the formation of germ cells.
"In the experiments on the ground, it usually takes six days to culture and obtain primordial germ cells, and about two weeks to form sperm-like or egg-like cells," says Kee.
"The experiment on Tianzhou-1 will last 30 days. To what extent the human embryonic stem cell can differentiate in space is still unknown. Will the process be delayed? If so, by how much?" asks Kee, adding they expect to see at least the first stage of the primordial germ cells appear.
Scientists on the ground will remotely control the research equipment to change the cell-culture medium to induce the human embryonic stem cells to differentiate into germ cells. Images of the cells under the microscope will be transmitted to earth.
http://english.sina.com/news/2017-04-21/detail-ifyepnea4429727.shtml
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Here's an enhanced capture after separation. You can clearly see the four engine nozzles.
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Did anyone read something about a microsatellite that will be orbited from Tianzhou-1. There is some information about the satellite on Chinaspaceflight.com, named SilkRoad1-1: https://www.chinaspaceflight.com/satellite/silk-road/silk-road-1-01.html
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The plans for Tianzhou-1 following launch success (http://gbtimes.com/china/plans-tianzhou-1-following-launch-success).
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https://youtu.be/Z70tyeh0giE
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At least they did a better job on the 360-degree view of Tianzhou 1 than the Cygnus OA-7 edition.
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Yawn, early morning in the UK! Any sign of live coverage of the Tianzhou 1 docking? Not managed to find anything at present.
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Live coverage now on https://www.youtube.com/watch?v=FaTrEWjuh4g.
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TZ-1 has crossed the 400 meters holding point about 10 minutes ago. It will reach the 120 meter point in a few minutes.
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Coming in from the V-bar.
According to Chinese sources this time TZ-1 made a fly around before coming from the front of the V-bar - previous Chinese dockings have the active S/C chasing from behind.
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At the 120 meters holding point.
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Live coverage now on https://www.youtube.com/watch?v=FaTrEWjuh4g.
Better quality Chinese stream (CCTV-4 channel) is here:
https://www.youtube.com/watch?v=Y8Wy9LXCapw
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GO for approach to 30 meters.
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You can now see the TG-2s docking port on the left side.
LIDAR system now turned on.
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Looming bigger and now TZ-1 is at the 30 meters holding point.
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TZ-1 is GO for final approach.
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They don't waste any time do they? That was one of the faster dockings I've seen.
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Beautiful view of the soft docking. :)
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Docking confirmed at 04:16 UTC!
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And locking up of the docking port mechanisms is already in progress as I write this.
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Hard mate completed at 04:23 UTC.
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Have there been any times published of the Tianzhou 1 orbit-raising manoeuvres leading up to docking, please?
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You can see that the camera on TZ-1 is of much better quality than that of on board TG-2. ;)
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First look inside TZ-1.
Cargo loaded inside was apparently "real ones or mass simulators" simulating a load for 3 people for a 30 days mission. There is also one "space suit simulator" (whatever it is), 1 each of drinking water and hard water containers, and 2 mass simulators of oxygen and nitrogen tanks.
http://news.xinhuanet.com/politics/2017-04/21/c_1120853025.htm (http://news.xinhuanet.com/politics/2017-04/21/c_1120853025.htm)
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Docking was about 3-3.5 hours earlier than we see on the Shenzhou missions.
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First look inside TZ-1.
Cargo loaded inside was apparently "real ones or mass simulators" simulating a load for 3 people for a 30 days mission. There is also one "space suit simulator" (whatever it is), 1 each of drinking water and hard water containers, and 2 mass simulators of oxygen and nitrogen tanks.
http://news.xinhuanet.com/politics/2017-04/21/c_1120853025.htm (http://news.xinhuanet.com/politics/2017-04/21/c_1120853025.htm)
Here's the view to front which I missed:
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Tianzhou-1 docks with Tiangong-2 space lab
https://www.youtube.com/watch?v=d3MCfdmhdjo
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Cooper, what are you doing ?
Docking
It's impossible
No, it's necessary
https://www.youtube.com/watch?v=d5d0vBtwBK0
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Thanks for the great docking coverage everyone, and congrats to China.
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Excellent docking coverage! It's all happening right now!
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Nice picture of the propellant transfer interfaces surrounding the APAS-89-like docking mechanism.
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Docking replay.
https://www.youtube.com/watch?v=l2uSCv2LiHU
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Propellant transfer tests between TZ-1 and TG-2 started yesterday at 23:26 UTC, and will lasts 5 days.
Source: https://mp.weixin.qq.com/s/OZ6qH5ixPVN1_af4mKcRbA (https://mp.weixin.qq.com/s/OZ6qH5ixPVN1_af4mKcRbA)
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From Xinhua,
China Exclusive: Are human space babies conceivable? Tianzhou-1 experiment may give clue (http://news.xinhuanet.com/english/2017-04/21/c_136225712.htm).
China Exclusive: Scientists to test medicine for bone loss on Tianzhou-1 (http://news.xinhuanet.com/english/2017-04/21/c_136225762.htm).
China experiments human stem cells in cargo spacecraft (http://news.xinhuanet.com/english/2017-04/21/c_136226863.htm).
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Tianzhou-1 to complete first propellant refueling mission
https://news.cgtn.com/news/3d41444d30597a4d/share_p.html
China's first space cargo ship, the Tianzhou-1, is about to refuel the Tiangong-2 space lab for the first time, using "in-flight refueling" techniques.
The spacecraft blasted off from the Wenchang Launch Center on April 20 and successfully docked with the space lab two days later. During its two-month orbit, the cargo ship is expected to refuel the space lab three times. The refueling procedure takes 29 steps and lasts for several days each time. If the Tianzhou-1 completes its objective, China will become the third country, after Russia and the United States, to master the technique of refueling in space. Chinese engineers consider it a major breakthrough for future space station operations.
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Has there ever been indication how much propellant can be carried on board Tianzhou for transfer to Tiangong or in future Tianhe 1? Is this mass in addition to the 5.5 tonnes of supplies which has been quoted?
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The Chinese has just announced that the refueling test has been successfully completed at 11:07 UTC.
http://www.chinanews.com/gn/2017/04-27/8210738.shtml (http://www.chinanews.com/gn/2017/04-27/8210738.shtml)
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BTW the next refueling test will be conducted around mid-late June (probably coinciding with the second rendezvous and docking test?).
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https://www.youtube.com/watch?time_continue=45&v=RFoAOliX2Uo
Tianzhou-1 to complete first propellant refueling mission
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Does anyone know what was the codename for this launch?
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China's Tianzhou-1 cargo spacecraft completes second orbital refuelling test (http://gbtimes.com/china/chinas-tianzhou-1-cargo-spacecraft-completes-second-orbital-refuelling-test).
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From Xinhua,
China's cargo spacecraft completes second in-orbit refueling (http://news.xinhuanet.com/english/2017-06/15/c_136368681.htm).
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In CGTV,s Information Banner...
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While all eyes were trying to find that missing comsat, TZ-1 and TG-2 flew under the radar and completed their 2nd docking test earlier today.
The two spacecraft undocked at 01:37 UTC, afterward TZ-1 retreated to the 5 km holding point for 90 minutes, then made a flyaround to the front of TG-2. After the two spacecraft yawed 180 degrees back to heads on position, TZ-1 re-approached and re-docked at 06:55 UTC.
Source (http://weibo.com/ttarticle/p/show?id=2309404120370545331471)
News report with video (http://tv.cctv.com/2017/06/19/VIDEwlJyrVfSVtaZgkVjTkJd170619.shtml)
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http://gbtimes.com/china/tianzhou-1-and-tiangong-2-undock-enter-free-flight-phase
Tianzhou-1 and Tiangong-2 undock, enter free flight phase
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Xinhua report of the undocking and redocking.
http://www.chinadailyasia.com/articles/15/164/11/1497923288493.html
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http://gbtimes.com/china/tianzhou-1-and-tiangong-2-undock-enter-free-flight-phase
Tianzhou-1 and Tiangong-2 undock, enter free flight phase
This article mentions Wednesday as the date of the undocking (01:47 UTC). This should be Monday, right?
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http://gbtimes.com/china/tianzhou-1-and-tiangong-2-undock-enter-free-flight-phase
Tianzhou-1 and Tiangong-2 undock, enter free flight phase
This article mentions Wednesday as the date of the undocking (01:47 UTC). This should be Monday, right?
They undocked and redocked on June 19th and then undocked once more for three months free flight on the 21st.
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I am wondering whether the undocking, three months of free flight and then redocking might be rehearsing the procedures for servicing the unmanned Xuntian space telescope?
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Extracted from a paper that I am working on:
"At some time between June 20-21 the orbit of the docked [Tiangong 2/Tianzhou 1] assembly was raised from 380-393 km to 391-397 km. The actual time of the manoeuvre is not known but the lower orbit was the last one to be catalogued before the second undocking and the higher orbit was the first catalogued after the undocking. The first post-undocking orbit catalogued for Tianzhou 1 was 393-397 km, slightly higher than the Tiangong orbit.
"A reasonable reconstruction of the events is that before the second undocking of the two craft the orbit was raised to 391-397 km and it was in this orbit that the two craft undocked on June 21: after the undocking the orbit of Tianzhou was raised slightly to increase its separation rate from Tiangong. The Chinese have given no indication which craft completed the manoeuvre to the 391-397 km orbit, but it was possibly Tiangong since its propellant supply has so recently been topped up by Tiangzhou."
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https://twitter.com/AJ_FI/status/892385887052587008
The Tianzhou-1 cargo spacecraft today at 07:03 UTC (15:03 Beijing time) released a 3U CubeSat, according to China Manned Space Agency.
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China's in-orbit cargo spacecraft releases CubeSat
China's Tianzhou-1 cargo spacecraft on Tuesday successfully released a cube satellite (CubeSat) while in orbit, according to China Aerospace Science and Technology Corporation (CASTC).
Signals from the CubeSat were received by ground technicians right after the release, said the CASTC.
The CubeSat was launched inside the Tianzhou-1 from the Wenchang Space Launch Center in south China's Hainan Province on April 20.
After 104 days, the CubeSat was released by the cargo spacecraft.
It was the first time China has released a CubeSat by an in-orbit spacecraft. Traditionally, the CubeSat is released during the launch.
The test release has laid a technical foundation for China's future space station to launch more micro/nano-satellites and provide other in-orbit services.
Like a Rubik's cube, a CubeSat is a satellite composed of smaller cubic units. Depending on its different uses, a CubeSat may contain two, three or more such units.
Compared with other integral satellites, cube spacecraft are generally smaller, lighter and much more economical in development and production costs.
Source:Xinhua Published: 2017/8/2 15:58:13
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Finally, Silu 1 has been catalogued: 2017-021F/42903.
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CubeSat "Silk Road-1"
Launch date: April 20, 2017
Source: People's Republic of China (PRC)
Launch site: Wenchang Satellite Launch Center (WSC)
NORAD ID: 42903
Int'l Code: 2017-021F
Perigee: 393.2 km
Apogee: 402.4 km
Inclination: 42.8 °
Period: 92.4 minutes
Semi major axis: 6768 km
RCS: Unknown
Two Line Element Set (TLE):
1 42903U 17021F 17218.05234172 +.00011244 +00000-0 +14521-3 0 9990
2 42903 042.7823 058.7049 0006801 251.2888 251.7445 15.58954910000542
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https://twitter.com/planet4589/status/907659229967904769
Robot freighter Tianzhou-1 redocked with unoccupied spacelab Tiangong-2 at 1558 UTC Sep 12; vehicles in a 390 x 393 x 42.8 deg orbit.
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https://twitter.com/planet4589/status/907659229967904769
Robot freighter Tianzhou-1 redocked with unoccupied spacelab Tiangong-2 at 1558 UTC Sep 12; vehicles in a 390 x 393 x 42.8 deg orbit.
According to Chinese news reports this tested out quick rendezvous profiles similar to what Soyuz is doing right as I type this. The procedures were initated at 09:24 UTC.
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Video of the latest docking
https://www.youtube.com/watch?v=i0wdypoef2Q
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Tianzhou-1 has completed its third propellant refueling testing
http://news.xinhuanet.com/tech/2017-09/16/c_1121675035.htm
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A source said TZ-1 will be reentry next weekend
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China Daily report of the third docking:
http://www.chinadaily.com.cn/china/2017-09/13/content_31929840.htm
And Xinhua:
http://news.xinhuanet.com/english/2017-09/13/c_136604449.htm
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A source said TZ-1 will be reentry next weekend
Will NOTAMs be filed? I assume this will be a destructive re-entry?
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https://twitter.com/AJ_FI/status/909335188550881280
Tianzhou-1 undocked from Tiangong-2 at 08:15 UTC today, after nearly 5 months of the Tianzhou-1 mission.
https://twitter.com/AJ_FI/status/909335615149416448
Tianzhou-1 is now orbiting 120m behind Tiangong-2, according to CMSA
https://twitter.com/AJ_FI/status/909336058667692032
Commands for uncoupling were sent at 07:29 UTC / 15:29 Beijing time.
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Tianzhou-1 has completed its third propellant refueling testing
http://news.xinhuanet.com/tech/2017-09/16/c_1121675035.htm
The above source states that the propellant transfer was completed at 16:17 Beijing Time while http://news.xinhuanet.com/english/2017-09/16/c_136614657.htm states that the time orf completion was 8:17 pm = 20:17 Beijing Time.
Is there verification of the correct time available from a third source?
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Tianzhou-1 has completed its third propellant refueling testing
http://news.xinhuanet.com/tech/2017-09/16/c_1121675035.htm
The above source states that the propellant transfer was completed at 16:17 Beijing Time while http://news.xinhuanet.com/english/2017-09/16/c_136614657.htm states that the time orf completion was 8:17 pm = 20:17 Beijing Time.
Is there verification of the correct time available from a third source?
What I see is both webpages show 20:17
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Tianzhou-1 has completed its third propellant refueling testing
http://news.xinhuanet.com/tech/2017-09/16/c_1121675035.htm
The above source states that the propellant transfer was completed at 16:17 Beijing Time while http://news.xinhuanet.com/english/2017-09/16/c_136614657.htm states that the time orf completion was 8:17 pm = 20:17 Beijing Time.
Is there verification of the correct time available from a third source?
What I see is both webpages show 20:17
When I checked yesterday the only time was showing on the first source was 16:17 on the 16th (I have a print out with the translation). Maybe that's the UT time that the story was filed then? Anyway, thank you - 20:17 Beijing Time = 12:17 UT it is then!
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Chinese space station freighter concludes refueling demo mission
Chinese space officials said in a statement that the Tianzhou 1 refueling and resupply craft completed its third transfer of propellant to the Tiangong 2 mini-space station in orbit at 0817 GMT (4:17 a.m. EDT) Saturday, pumping around 550 pounds (250 kilograms) of liquid fuel and oxidizer into the space lab nearly 250 miles (400 kilometers) above Earth.
The two spacecraft undocked Sunday to continue independent trials, with Tianzhou 1 set to eventually de-orbit and make a guided plunge into Earth’s atmosphere, where it will largely burn up and spread debris over a remote stretch of ocean. Chinese officials have not said when Tianzhou 1 will re-enter the atmosphere.
The final linkup occurred at 0458 GMT (12:48 a.m. EDT) on Tuesday, Sept. 12, after a simulated fast-track rendezvous profile to check out procedures for future cargo vehicles and crew ferry craft to dock with the Chinese space station as quickly as six hours after liftoff, China’s Manned Space Engineering Office said in a statement.
https://spaceflightnow.com/2017/09/17/chinese-space-station-freighter-concludes-refueling-demo-mission/
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Tianzhou1 and Tiangong 2 this evening at about 1:46UT on 9-19-2017.The Tianzhou1 is running about 1 minute 7second ahead of Tiangong 1. We were trying to run two cameras at once and bump the still image camera the reason for the little V shape in the Tianzhou1 track. Have video of the pass coming later.
Regards Thomas
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Maybe I am Google searching in the wrong places, but so far I have not found a Chinese - for example, Xinhua - report of the final undocking of Tianzhou 1 from Tiangong 2.
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Maybe I am Google searching in the wrong places, but so far I have not found a Chinese - for example, Xinhua - report of the final undocking of Tianzhou 1 from Tiangong 2.
CMS official account: http://mp.weixin.qq.com/s/Hrgq2ldiFaNn7KU1bDdJnw
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Maybe I am Google searching in the wrong places, but so far I have not found a Chinese - for example, Xinhua - report of the final undocking of Tianzhou 1 from Tiangong 2.
Xinhua/China Daily
http://europe.chinadaily.com.cn/china/2017-09/18/content_32139233.htm
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Maybe I am Google searching in the wrong places, but so far I have not found a Chinese - for example, Xinhua - report of the final undocking of Tianzhou 1 from Tiangong 2.
CMS official account: http://mp.weixin.qq.com/s/Hrgq2ldiFaNn7KU1bDdJnw
Thank you! The report is confusing, although that might be because of Google Translate. The translation is giving the undocking time at 17:15 - presumably Beijing Time which is reasonable - but then appears to say that the command for the undocking was transmitted at 17:29. Or maybe the latter time is the start of the procedures to "park" Tianzhou 120 metres from Tiangong?
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Maybe I am Google searching in the wrong places, but so far I have not found a Chinese - for example, Xinhua - report of the final undocking of Tianzhou 1 from Tiangong 2.
CMS official account: http://mp.weixin.qq.com/s/Hrgq2ldiFaNn7KU1bDdJnw
Thank you! The report is confusing, although that might be because of Google Translate. The translation is giving the undocking time at 17:15 - presumably Beijing Time which is reasonable - but then appears to say that the command for the undocking was transmitted at 17:29. Or maybe the latter time is the start of the procedures to "park" Tianzhou 120 metres from Tiangong?
That's 15:29 not 17:29, and undocking at 16:15
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Has there been any indication when the next Shenzhou manned will be?
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Has there been any indication when the next Shenzhou manned will be?
No solid information so for, depending on uncertain CSS(Tianhe) schedule. If CSS delaying too much, Shenzhou-12 will dock to Tiangong-2 instead in my bad memory
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Has there been any indication when the next Shenzhou manned will be?
No solid information so for, depending on uncertain CSS(Tianhe) schedule. If CSS delaying too much, Shenzhou-12 will dock to Tiangong-2 instead in my bad memory
2020 according to https://www.chinaspaceflight.com/China-Launch-Schedule.html.
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Maybe I am Google searching in the wrong places, but so far I have not found a Chinese - for example, Xinhua - report of the final undocking of Tianzhou 1 from Tiangong 2.
CMS official account: http://mp.weixin.qq.com/s/Hrgq2ldiFaNn7KU1bDdJnw
Thank you! The report is confusing, although that might be because of Google Translate. The translation is giving the undocking time at 17:15 - presumably Beijing Time which is reasonable - but then appears to say that the command for the undocking was transmitted at 17:29. Or maybe the latter time is the start of the procedures to "park" Tianzhou 120 metres from Tiangong?
That's 15:29 not 17:29, and undocking at 16:15
OK ..... Google Translate says:
"At 17:15 on September 17th, after nearly five months of flight, the day boat cargo spacecraft planned to complete separation with the Temple II space laboratory, continue to carry out the expansion before the application and related tests.
"At 17:29 on September 17, the ground to send instructions, the day on the 1st cargo spacecraft and Temple II space laboratory implementation of the separation. According to the procedure, the day boat is separated to the rear 120 meters and the position is maintained, the ground confirms the normal state, the order controls the normal evacuation of the sun on the 1st, the sun on the 1st to establish a three-axis stability to ground flight attitude, at a height of about 400 km Of the near-round track began to run independently."
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Looks like Google translator has a bug when the sentence is a mix of date and time :o
Your can try to use Microsoft Bing translator next time
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In view of the online translation problems, can a Chinese speaker please confirm whether the 250 kg of propellant said to have been transferred from Tianzhou 1 to Tiangong 2 is the amount for the third transfer or the total for all three transfers?
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In view of the online translation problems, can a Chinese speaker please confirm whether the 250 kg of propellant said to have been transferred from Tianzhou 1 to Tiangong 2 is the amount for the third transfer or the total for all three transfers?
Just the third time
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Last night's video of the Tianzhou 1 and Tiangong 2 pass.
https://vimeo.com/234572586
Regards
Thomas
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A source said TZ-1 will be reentry next weekend
Reentry on 22-23 Sep over Pacific Ocean (inofficial source)
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A source said TZ-1 will be reentry next weekend
Reentry on 22-23 Sep over Pacific Ocean (inofficial source)
And confirmed by CMSE
http://www.cmse.gov.cn/art/2017/9/22/art_810_31946.html
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Tianzhou-1 has been deorbited today at "around 10:00 UTC": http://www.cmse.gov.cn/art/2017/9/22/art_19_31955.html (http://www.cmse.gov.cn/art/2017/9/22/art_19_31955.html)
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Tianzhou-1 has been deorbited today at "around 10:00 UTC": http://www.cmse.gov.cn/art/2017/9/22/art_19_31955.html (http://www.cmse.gov.cn/art/2017/9/22/art_19_31955.html)
http://news.xinhuanet.com/english/2017-09/22/c_136630237.htm
BEIJING, Sept. 22 (Xinhua) -- China's first cargo spacecraft, Tianzhou-1, left its orbit under orders from ground control around 6 p.m. Friday.
The cargo ship twice put on the breaks, continuously lowering its altitude before burning-up in the atmosphere, all under precise control and close monitoring from the ground.
Before leaving orbit, Tianzhou-1 had completed a number of experiments, gaining important experience for the building and operating of China's space station.
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Tianzhou-1 has been deorbited today at "around 10:00 UTC": http://www.cmse.gov.cn/art/2017/9/22/art_19_31955.html (http://www.cmse.gov.cn/art/2017/9/22/art_19_31955.html)
http://news.xinhuanet.com/english/2017-09/22/c_136630237.htm
BEIJING, Sept. 22 (Xinhua) -- China's first cargo spacecraft, Tianzhou-1, left its orbit under orders from ground control around 6 p.m. Friday.
The cargo ship twice put on the breaks, continuously lowering its altitude before burning-up in the atmosphere, all under precise control and close monitoring from the ground.
Before leaving orbit, Tianzhou-1 had completed a number of experiments, gaining important experience for the building and operating of China's space station.
CCTV News
http://tv.cctv.com/2017/09/22/VIDE8RXRl0d4Hzwr18KFEWgf170922.shtml
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Today it has been reported on the Shijian 18 thread (launch failure by the CZ-5) that its launch code was 07-03: since Tianzhou 1 was the third launch from Wenchang, I wonder what its launch code was.
921-TZ1, following the format of the codes for the two Tiangong launches??