Algeria national space programs
Program Alsat
The "Alsat program " is a constellation of Algerian earth observation satellites operated by the Algerian Space Agency.
Algeria has three (03) operational units and one (01) retired mission .
Retired missions
Alsat-1
Alsat-1 is the first earth observation satellite of Algeria . its principal mission is monitoring natural resources . it was a Disaster Monitoring Constellation (DMC) satellite that is developed and coordinated by Surrey Satellite Technology Ltd (SSTL).
the satellite has a shape of a cube of 60 centimeters of cotes , and a weight of about 92 kilograms . The imaging system cover the green,The red , The near infrared, for a resolution of 32 meters.
it was placed in orbit by a kosmos-3M launch vehicle from the Russian cosmodrome of Plessetsk, the 28 of November 2002 . its orbit is heliosynchronous at an altitude of about 700 kilometers with orbital inclination of 98° .
its first images were received on December 17, 2002 at the reception stations of the Center of space technics (Centre national des techniques spatiales CNTS) at Arzew,Algeria. Alsat-1 completed its mission on le 15 august 2010.
Operational missions
Alsat-2
on February 1, 2006, EADS Astrium annonces [1] the signature of a contract for the realisation of two (02) satellites (Alsat-2A et Alsat-2B) of the Alsat-2 Program. The Alsat-2 program includes also the establishment of two ground control segments and an image terminal to control and pilot the satellites from Algerian territory.
Alsat-2A
Alsat-2A is a high resolution earth observation satellite, it was integrated and tested in France, at the d'EADS Astrium workshops with participation of 29 algerian engineers. It was launched by a PSLV launch vehicle on 12 July 2010 . with a resolution of 2.5m in panchromatic mode and of 10 m in multispectral mode, it provides satellite images for multiple applications such as topography, agriculture, cartography, protection of the environment [2]).
Alsat-2B
Alsat-2b is the 2nd high resolution earth observation satellite and the 2nd unit of the Alsat-2 program launched on 26 September 2016 after Alsat-2A launched on July 2010. It is a twin of Alsat-2A, It was integrated at the center of development of satellites of the Algerian Space Agency in oran .[3] Alsat-2B is operational. [4]
the Algerian space agency conducted tests and corrections of Orbit autonomously since Alsat-2B emitted its first signals.[4]
Caracteristics (Alsat-2A,Alsat-2B)
both satellites are based on the Myriade platform of the Centre national d'études spatiales (CNES) and placed in a polar heliosynchonous orbit .
they have the following caractirics
- weight at launch :130 kg
- embarked none-volatile memory : 64 Gbit
- payload : Télescope en carbure de silicium
- Panchromatic mode resolution : 2.5m
- multispectral mode resolution: 10m
- Largeur de la fauchée : 17.5 km.
the satellites (Alsat-2A,Alsat-2B) form a mini-constellation.
Alsat-1B
Alsat-1B is a medium resolution earth observation satellite built on the SSTL-100 platform.[3] the satellite weights 103 kg. it was integrated by the center of development of satellites of the Algerian space agency in Oran . its images are used for the management of natural disasters and the protection of the Environment.[3]
Alsat-1b was launched on 26 September 2016 by a PSLV-C35 launch vehicle.[3] the Algerian space agency conducted tests and corrections of Orbit autonomously since the satellite emitted its first signals.[4] Alsat-1B is a Disaster Monitoring Constellation (DMC) satellite coordinated by Surrey Satellite Technology Limited (SSTL).[4]
Scientific research
Alsat-Nano
Alsat-1N or Alsat-Nano is a 3U technology demonstration nano-satellite,weight of 7 kg.built by an Algerian-British team in application of the cooperation agreement signed between the Algerian Space Agency and the l'UK Space Agency. 18 Algerian engineers used the satellite as a pedagogical tool during their graduation research at Surray university.
the main mission objectives are test of three (03) innovative components :camera ,fin solar films and a measure of radiation . data obtained by the satellite will be studied by Algerian and British researchers.[4] Alsat-1N was launched on 26 September 2016 by an ISRO PSLV rocket a été lancé le 26 septembre 2016.[3]
Program Alcomsat
Is a telecommunications satellites program
Planified missions
Alcomsat-1
Alcomsat-1 is a telecommunications satellite built in partnership with China Great Wall Industry Corporation. It will be operational before June 2017. The satellite will provide television , VSAT and internet access . It will be positioned longitude 24.8W or 27.6W.[5]
Références
- 1 2 {{ |cite web |language=fr |title=EADS Astrium fournira le système d'observation optique ALSAT-2 à l'algérie |url=http://www.astrium.eads.net/press-center/archives/2006/eads-astrium-to-supply-Algeria-s-alsat-2-optical-observation-system-fr |access-date=2007-10-24 }}
- ↑ "ASAL: Agence Spatiale Algerienne" (in French). Retrieved 2016-03-20.
- 1 2 3 4 5 "Algerian Space agency". Algerian Space Agency. Retrieved 2016-11-13.
- 1 2 3 4 5 "Algerian Space agency". Algerian Space Agency. Retrieved 2016-11-13.
- ↑ "Lancement d'Alcomsat-1, quels bénéfices pour l'ANP ?" (in French). Retrieved 2016-09-26.