Author Topic: Tianzhou-1 - CZ-7 (Y2) - WSLC, LC201 - April 23, 2017  (Read 7875 times)

Online Olaf

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Re: TZ-1 Tianzhou-1 first logistics cargo launch, April 2017
« Reply #20 on: 03/04/2017 07:46 AM »
http://news.xinhuanet.com/english/2017-03/04/c_136101226.htm
China's 1st cargo spacecraft to make three rendezvous with Tiangong-2

Offline Galactic Penguin SST

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 of the special rocket transport ships the Chinese have.....  ;)

Video of the ship leaving Tianjin port: http://tv.cntv.cn/video/C10166/7c7d9c7ce1f7451ca83d5bece42c9be7
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Satori

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Re: TZ-1 Tianzhou-1 first logistics cargo launch, April 2017
« Reply #22 on: 03/09/2017 12:19 PM »
Chang Zheng-7 (Y2) for the Tianzhou-1 launch arrived today at Wenchang.

Offline linxiaoyi

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Re: TZ-1 Tianzhou-1 first logistics cargo launch, April 2017
« Reply #23 on: 03/11/2017 06:05 AM »
[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
« Last Edit: 03/11/2017 06:06 AM by linxiaoyi »
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Offline Galactic Penguin SST

According to 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.
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Satori

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Offline Nordren

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Re: TZ-1 Tianzhou-1 first logistics cargo launch, April 2017
« Reply #26 on: 03/13/2017 10:21 AM »

Online Phillip Clark

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Re: TZ-1 Tianzhou-1 first logistics cargo launch, April 2017
« Reply #27 on: 03/13/2017 10:37 AM »
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?

Online EgorBotts

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Re: TZ-1 Tianzhou-1 first logistics cargo launch, April 2017
« Reply #28 on: 03/13/2017 12:13 PM »
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?

Online Phillip Clark

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Re: TZ-1 Tianzhou-1 first logistics cargo launch, April 2017
« Reply #29 on: 03/13/2017 12:33 PM »
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.

Offline luhai167

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Re: Tianzhou-1 - CZ-7 (Y2) - WSLC, LC201 - April 23, 2017
« Reply #30 on: 03/15/2017 07:29 PM »
Some images of TZ-1 (and what looks like a Shenzhou orbital module?) in ChinaSpaceFlight's twitter:


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.





http://www.popsci.com/chinas-answer-to-hubble-telescope


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Offline limen4

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Re: Tianzhou-1 - CZ-7 (Y2) - WSLC, LC201 - April 23, 2017
« Reply #31 on: 03/23/2017 06:11 PM »
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