Tianlian 1A
| Tianlian 1A | |
|---|---|
| Start date | April 25, 2008, 3:35 pm ( UTC ) |
| Launcher | Long march 3C |
| Launch site | Xichang Cosmodrome |
| COSPAR-ID : | 2008-019A |
| Takeoff mass | 2100 kg |
| Manufacturer | Chinese Academy of Space Technology (CAST) |
| Satellite bus | DFH-3A |
| lifespan | 8 years (planned) |
| operator | Manned Space Office |
| Playback information | |
| Transponder | Ka and S band |
| position | |
| First position | 77 ° East |
| Actual position | 80 ° East ( July 2020 ) |
| List of geostationary satellites | |
Tianlian 1A ( Chinese 天 鏈 一號 / 天 链 一号 , Tianlian I-01 , Tian Lian 1A , TL-1A or CTDRS-1A , where Tian Lian stands for space connection ) is the first data transmission satellite in the People's Republic of China .
Tianlian 1A was transported into geostationary orbit on April 25, 2008 from the Xichang Cosmodrome . The launch took place with the first rocket of the Langer Marsch 3C type . The satellite was successfully placed in the transition orbit to geostationary orbit after about 25 minutes . It reached its geostationary position 77 degrees East on May 1st.
The on the back in 2007 in the lunar probe Chang'e-1 used satellite bus DFH-3A based missiles should as a relay station, the communication link between the ground station and the manned spacecraft Shenzhou 7 improve, launched in September, 2008. The previous network of ground stations was only able to ensure communication with Shenzhou on around twelve percent of the flight path. Tianlian 1A should cover over 50 percent of the flight path.
Tianlian 1A was developed by the Chinese Academy of Space Technology and has transponders in the Ka and S band .
The network was completed with the relay satellites Tianlian 1B and 1C, which were launched on July 11, 2011 and July 25, 2012, respectively, and it was used for the first time on the Shenzhou 10 mission from June 13 to 25, 2013. In 2016, two years after the end of the planned service life, the still functional Tianlian 1A was initially supplemented by Tianlian 1D and then replaced.
See also
Individual evidence
- ↑ China sets up first space station for spacecraft data relay. In: en.people.cn. May 2, 2008, accessed January 28, 2020 .
- ↑ China Radio International: China launches relay satellites
- ↑ Spaceflight Now: Chinese data relay spacecraft put into orbit (English)
- ↑ Sinodefence.com: TianLian 1 Data Relay Satellite System ( Memento from March 2, 2010 in the Internet Archive ) (English)
- ↑ China successfully launched the third relay satellite Tianlian I-03. China News Network, July 13, 2011, accessed June 8, 2019 .
- ↑ 刘 爽 、 田雅文 、 蒋立 正: 载人 航天 空间 交会 对接 工程 荣获 国家 科技 进步 特等奖. In: cmse.gov.cn. January 10, 2014, accessed January 28, 2020 (Chinese).
- ↑ Tianlian I-04 successfully launched - China's fourth relay satellite. Beijing News, November 23, 2016.