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GaoFen-2 Satellite

GaoFen-2 satellite is China’s ideal 80-cm satellite for large-scale mapping in high resolution.

Sample imagery

1-gaofen-2

GaoFen-2 80-cm Natural Color–Bandar Mahshahr, Iran; November 21, 2019 View Full Size Image

The GaoFen-2 Advantage

Large Collection Footprint

With a 45-kilometer swath width, GaoFen-2 covers a massive amount of ground in high resolution.

Affordable Option

GaoFen-2 offers 80-cm resolution imagery at an affordable price, making it ideal for large projects.

Overview & History

GaoFen-2 was launched by the China National Space Administration (CNSA) on August 19, 2014. It was an improvement on the 2-meter (m) resolution satellite, GaoFen-1, launched in 2013. GaoFen-2 is part of CNSA’s high-resolution satellite constellation that also includes SuperView-1, collecting 80-centimeter (cm) panchromatic and 3.2-m 4-band multispectral (i.e. blue, green, red and near infrared [NIR]) imagery.

GaoFen-2’s massive 45-kilometer swath width coupled with 80-cm resolution makes it a unique choice for large-scale mapping. This Chinese satellite collects 4-band multispectral data which is ideal for precision agriculture, forestry and spectral analysis.

GaoFen-2 Specifications

Launch Details
  • Launch Date: August 19, 2014, 03:15 UTC
  • Vehicle: CZ-4B (Long March-4B)
  • Site: Taiyuan Satellite Launch Center, Shanxi Province, China
GaoFen-2 Components
  • Dimensions: 2,100 kg
  • Control Systems: domestic high precision APS (Active Pixel Sensor) star sensor, MWs (Momentum Wheels) and CMGs (Control Moment Gyros)
  • Onboard Storage Capacity: 4.9 Terabytes
  • Ground Communication Systems:
    • Imagery downlink–2 x 450 Mbits
  • Optical Sensor Assembly: 7.8-m focal length
Orbit Characteristics
  • Altitude: 631 km
  • Period: 97 minutes
  • Inclination: 97.9°
  • Direction: sun-synchronous orbit, north to south (across the lit side of Earth)
  • Equatorial Crossing Time: 10:30 local time (approximate; across lit side of Earth)
  • Revisit Frequency: within 5 days, global average
Imaging System
  • Spectral Bands:
    • Panchromatic
    • 4-band multispectral (blue, green, red and NIR)
  • Sensor Resolution:
    • At nadir–81-cm panchromatic & 3.24-m multispectral
  • Spectral Band Wavelength Range: (in nm)
    • Panchromatic–450 to 900
    • Blue–450 to 520
    • Green–520 to 590
    • Red–630 to 690
    • NIR–770 to 890
  • Dynamic Range: 10-bits
Collection Capabilities
  • Footprint Width: 45 km (at nadir)
  • Georeferenced Horizontal Accuracy: 20 to 39-m CE90 (global average; depends on terrain and nadir pointing)

Pricing

Data Source

archive

Minimum Order Size

25 sq km (per area & date)

Product Type

georeferenced + natural color or 4-band

For an exact quote, please contact our Sales Team by email at sales@apollomapping.com
or by using our Request a Quote form.

Interested in machine learning research focused on GaoFen-2 high-resolution satellite imagery?

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