Английская Википедия:Alsat-2A
Шаблон:Short description Шаблон:Infobox spaceflight
Alsat-2A is an Algerian satellite operated by the Algerian Space Agency for cartography, management of agriculture, forestry, water, mineral and oil resources.[1] The satellite weighs Шаблон:Convert and carries an Earth optical payload.
The satellite was launched on 12 July 2010 by ISRO using the PSLV-C15 rocket.[2]
Structure
Alsat-2A is the successor of Alsat-1, which was launched on 28 November 2002. The satellite is intended to aid in cartography; gain information for agriculture, forestry and water management; facilitate the search for mineral resources; the planning of land use; and help in disaster response. NAOMI (New Astrosat Observation Modular Instrument) is a telescope installed on the spacecraft, with a Шаблон:Convert diameter mirror that has a resolution of Шаблон:Convert panchromatic and Шаблон:Convert in four different spectral regions. The swath width of the telescope is Шаблон:Convert, and the satellite flies over the same spot approximately every three days. The telescope can hold up to 35° outside the orbital plane images. Data transmission occurs in the X- and S-band. The power supply accepts a solar cell of two elements, which provides a maximum of 175 watts of electrical power for the operation of satellite systems and by lithium ion batteries with a total capacity of 15 ampere-hours is supported. The projected lifetime of the satellite is five years. For trajectory correction maneuvers, the satellite uses its hydrazine thrusters, of which it has Шаблон:Convert propellant for its lifetime. The stabilization is achieved by using star and Sun sensors, reaction wheels, gyroscopes and GPS.[3]
Start
The launch took place on 12 July 2010 at 05:52 CEST with four other satellites in the PSLV rocket C15 from the rocket launch site Satish Dhawan Space Centre. The main payload Cartosat-2B was the first satellite to deploy, at 1034 seconds, at an altitude of approximately Шаблон:Convert above the Earth's surface in a circular Sun-synchronous orbit with an inclination of about 98.1 °. Then Alsat-2A was deployed, followed by the three nano or pico Studsat from India, Aïssat-1 from Norway and TIsat-1 from Switzerland.[3]
See also
References
External links
- Astrium, ASAL: ALSAT-2 Programme Шаблон:Webarchive (PDF; 3,9 MB)
- ASAL: Homepage (French)
Шаблон:ASAL Шаблон:Orbital launches in 2010
- ↑ Ошибка цитирования Неверный тег
<ref>; для сносокssне указан текст - ↑ Шаблон:Cite web
- ↑ 3,0 3,1 Шаблон:Cite web
