Gaofen 1 () is a Chinese
high-resolution
Image resolution is the detail an image holds. The term applies to digital images, film images, and other types of images. "Higher resolution" means more image detail.
Image resolution can be measured in various ways. Resolution quantifies how cl ...
Earth observation satellite, and the first of the
Gaofen series satellites.
History
The civilian CHEOS (China High-resolution Earth Observation System) satellite program was proposed in 2006 and received approval in 2010. Gaofen 1 was the first of six planned CHEOS spacecraft for being launched between 2013 and 2016.
The satellite's primary goal is to provide near real time observations for
disaster prevention and relief,
climate change monitoring,
geographical mapping,
environmental
A biophysical environment is a biotic and abiotic surrounding of an organism or population, and consequently includes the factors that have an influence in their survival, development, and evolution. A biophysical environment can vary in scale f ...
and
resource
Resource refers to all the materials available in our environment which are technologically accessible, economically feasible and culturally sustainable and help us to satisfy our needs and wants. Resources can broadly be classified upon their ...
surveying as well as
precision agriculture
Precision agriculture (PA) is a farming management strategy based on observing, measuring and responding to temporal and spatial variability to improve agricultural production sustainability. It is used in both crop and livestock production. ...
support.
Subsequently, over twelve satellites were launched in the Gaofen series, with varying
optical
Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultravio ...
,
infrared
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ...
and
radar imaging
Imaging radar is an application of radar which is used to create two-dimensional images, typically of landscapes. Imaging radar provides its light to illuminate an area on the ground and take a picture at radio wavelengths. It uses an antenna and ...
capabilities. They are managed by civilians.
Launch
Gaofen 1 was launched on 26 April 2013 at 04:13 UTC with a Long March 2D carrier rocket from the
Jiuquan Satellite Launch Center
Jiuquan Satellite Launch Center (JSLC; also known as Shuangchengzi Missile Test Center; Launch Complex B2; formally Northwest Comprehensive Missile Testing Facility (); Base 20; 63600 Unit) is a Chinese space vehicle launch facility ( sp ...
along with the three small experimental satellites:
TurkSat-3USat (
Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula in ...
),
CubeBug 1 (
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...
) and
NEE-01 Pegaso (
Ecuador
Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ' ...
) in a
Sun-synchronous orbit.
See also
*
Chinese space program
The space program of the People's Republic of China is directed by the China National Space Administration (CNSA). China's space program has overseen the development and launch of ballistic missiles, thousands of artificial satellites, manned ...
References
{{DEFAULTSORT:Earth Observation Satellite
Spacecraft launched in 2013
Earth observation satellites of China
2013 in China
Spacecraft launched by Long March rockets