In a significant leap for China’s space exploration capabilities, the Gaofen-2 satellite stands as a pioneering achievement in the realm of optical remote sensing. Launched on August 19, 2014, the Gaofen-2 satellite represents a milestone as China’s first self-developed civilian satellite with a spatial resolution surpassing 1 meter. This groundbreaking satellite, equipped with cutting-edge technology, has propelled China into the era of sub-meter resolution remote sensing.
The Gaofen-2 satellite is a testament to China’s technological prowess, boasting two high-resolution cameras — a 1-meter panchromatic camera and a 4-meter multispectral camera. These cameras enable the satellite to capture imagery with exceptional clarity and precision, setting new standards in the field of optical remote sensing. With features like high radiation accuracy, precise positioning capabilities, and rapid attitude maneuvering, the Gaofen-2 satellite has redefined the landscape of satellite observation.
One of the key highlights of the Gaofen-2 satellite is its data classification, which includes panchromatic imagery, multispectral imagery, and pan-sharpened imagery. These diverse imaging capabilities allow for a comprehensive analysis of various landscapes and terrains, providing invaluable insights for a range of applications.
Let’s delve into the detailed parameters of the Gaofen-2 satellite:
- Sensor Resolution: Panchromatic — 0.8 meters; Multispectral — 3.2 meters
- Revisit Period (with side swing): 5 days
- Orbital Period (without side swing): 69 days
- Launch Date: August 19, 2014
- Country of Origin: China
- Minimum Order Area: 100 square kilometers
- Spectral Range: Panchromatic 450–900nm; Multispectral — Red: 630–690nm, Green: 520–590nm, Blue: 450–520nm, Near Infrared: 770–890nm
- Swath Width: 45 kilometers (combination of two cameras)
- Orbit Type: Sun-synchronous orbit
- Orbit Height: 631 kilometers
- Equator Crossing Time: 10:30 a.m.
- Image Format: JPEG or GeoTIFF
- Products: Single scenes (0.8m panchromatic, 3.2m multispectral), stereo pairs (none), archived data, programmed data, raw level products, orthorectified level products
- Service Provider: Beijing OMAP.
- Contact Information: accpxdj@gmail.com
The Gaofen-2 satellite’s advanced technology and detailed parameters underscore its pivotal role in advancing China’s satellite engineering capabilities and enhancing the country’s high-resolution Earth observation data self-sufficiency. With its unparalleled imaging capabilities and innovative features, the Gaofen-2 satellite heralds a new era of precision remote sensing and data acquisition, opening up a world of possibilities for various user departments and applications.
