Author Topic: Tianlian-1 (05) - CZ-3C/G2 - Xichang - July 6, 2021 (15:53 UTC)  (Read 10736 times)

Offline input~2

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Offline Galactic Penguin SST

This is the last of the 1st generation Chinese data relay satellites AND the final "classical" DFH-3 comsat bus satellite per official reports.
« Last Edit: 07/06/2021 05:13 pm by Galactic Penguin SST »
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Offline Conexion Espacial

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With this satellite it is sought that the time in which there is no data transmission between Thiane and China is less, one of the areas where there is still no coverage is in South America although it is not yet known which area the Tianlian 1-05 will operate on.

(the image was taken during the spacewalk)
« Last Edit: 07/06/2021 05:10 pm by Conexion Espacial »
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Offline otter

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http://www.chinadaily.com.cn/a/202107/07/WS60e48c35a310efa1bd6601aa.html

China launched the last satellite in its Tianlian I relay spacecraft series late Tuesday night, which also marked the finale of the country’s DFH-3 satellite platform.

A Long March 3C carrier rocket blasted off at 11:53 pm at the Xichang Satellite Launch Center in Sichuan province and then placed the Tianlian I-05 satellite into a geostationary orbit, according to China Aerospace Science and Technology Corp, the country’s leading space contractor.

The State-owned conglomerate said in a statement that the satellite is the fifth and last member of the Tianlian I fleet, the nation’s first-generation data relay spacecraft.

It is expected to work for at least seven years. Its service will further improve the country’s capability of relaying signals between satellites and ground control, the statement noted.

China began to establish its own space-based data relay system in April 2008 when the first satellite in the Tianlian I series was launched from Xichang. The Tianlian I-01 is still operating in orbit, extensively outliving its designed life span.

In July 2012, China became the second country, after the United States, possessing non-stop relay capability for its space-based infrastructure after the Tianlian I-03 was deployed into space to join its two predecessors to form a basic system with global coverage.

In March 2019, China launched Tianlian II-01, the first of its second-generation data relay satellite.

Currently, the Tianlian network consists of six spacecraft – five of the Tianlian I and one in the Tianlian II series. Sources close to the system’s development said the Tianlian II-02 and Tianlian II-03 will be deployed soon.

Compared with the first-generation model, Tianlian II satellites feature stronger capabilities, heavier carrying capacity and longer life spans, according to Zhao Hong, chief designer of the Tianlian II-01.

“Because of its newly developed antennas, the data transmission speed of the new-generation type is twice that of the first generation,” Zhao said.

Tianlian II satellites can serve more spacecraft and have a larger operational range, he added.

Tianlian has served several important space functions such as rendezvous and dockings between spaceships and space stations and video link between astronauts and people on the ground.

Offline input~2

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Offline Alter Sachse

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CZ-3C/G2 according to Chinese sources
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Offline Skyrocket

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CZ-3C/G2 according to Chinese sources
The payload fairing also hints to a G2 version

Offline whiztech

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considering 2021-064 is for Ningxia-1 Group 02 launch, this one should be here

2021-063B/49012:
39,785 km x 180 km, 17.55º

Offline input~2

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considering 2021-064 is for Ningxia-1 Group 02 launch, this one should be here

2021-063B/49012:
39,785 km x 180 km, 17.55º

This has been tagged as CZ-3C third stage by Spacetrack
« Last Edit: 07/12/2021 02:06 pm by input~2 »

Offline input~2

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As of July 14, TLEs for 2021-063A [Tianlian-1E] have not yet been made public

Offline input~2

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A 9ifly post says Tianlian-1E had already reached GEO on July 14

Offline input~2

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The satellite has finally been found stable in GEO (epoch July 18):

2021-063A/49011 in 35783 x 35790 km x 2.99°

Offline Conexion Espacial

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Update for Tianlian-1 05:

Final position 10.66 ° and if he replaces Tianlian-1 03.
https://t.co/D1bKTuhLIa?amp=1
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