Alcomsat-1

Alcomsat-1
Mission type Communication
Operator Algerian Space Agency (ASAL)
COSPAR ID 2017-078A
SATCAT no. 43039Edit this on Wikidata
Mission duration 15 years
Spacecraft properties
Launch mass 5,200 kilograms (11,500 lb)
Start of mission
Launch date 04:11, December 10, 2017 (UTC) (2017-12-10T04:11Z)
Rocket Long March 3B
Launch site Xichang Satellite Launch Center
Orbital parameters
Reference system Geocentric
Regime Geostationary
Longitude 24.8° west
Transponders
Band 20 (24 36Mhz equivalent) IEEE Ku band and 6 (13 36Mhz equivalent) IEEE C band transponders
Frequency Ku band and C band
Bandwidth Ku band: 864 Mhz
C band: 464 Mhz

Alcomsat-1 is the first Algerian communication satellite,carried by Chinese launcher Long March 3B, from the Xichang Satellite Launch Center, located in Sichuan Province, 2,200 km southwest of Beijing.[1]

The satellite is designed for 15 years operational lifetime and is a partnership between Algerian Space Agency (ASAL) and China. It is dedicated for telecommunications, television broadcasting and internet.


Operations

The satellite was developed by the Chinese Academy of Space Technology (CAST) and is based on the DFH-4 platform. Its communications payload is composed of 33 operational transponders (19 in Ku band, 12 in Ka band and 2 in L band). The satellite will operate for 15 years on the geosynchronous orbit. Launch mass is around 5,200 kg[2].

The DFH-4 (DongFangHong-4) platform is a large telecommunications satellite platform of the next generation. It provides high capability in output power and communication capacity ranking with international advanced satellite platforms.

The applications for the DFH-4 platform isn’t limited to high capacity broadcast communication satellites and can be used as a tracking and data relay satellite, regional mobile communication satellite, etc.

Image result for Chinese DFH-4 platformThe platform comprises propulsion module, service module and a solar array system. It has a payload capacity of 588 kg and an output power of 10.5 kW by the end of its lifetime. Its design lifetime is 15 years and its reliability by the end of its lifetime is more than a 0.78 industry ratio.

The platform is equipped with 22 Ku-band transponders (four 54MHz and 18 36MHz), 3 receiver antennas, and two transmission antennas.

The DFH-4 can support the transmission of 150~200 TV programs simultaneously to ground users using a 0.45 meters antenna device. The DFH-4 satellite also features strong capabilities against hostile disturbance and jamming. The satellite’s power supply includes two 6 meters solar panels.

See also

References

  1. ↑ Chinese Long March 3B lofts Alcomsat-1 for Algeria 10/12/2017
  2. ↑ Chinese Long March 3B lofts Alcomsat-1 for Algeria 10/12/2017
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