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GEOSAT-1 Satellite

GEOSAT-1 satellite is great for large-scale agricultural projects with 22-meter resolution and red, green and NIR bands.

GEOSAT-1 Satellite Imagery Samples

GEOSAT-1 22-m False Color - Onslow, Australia; October 29, 2013
GEOSAT-1 22-m False Color - San Francisco, California; May 22, 2012
GEOSAT-1 22-m False Color - Alvaro Obregon, Mexico; April 9, 2012
GEOSAT-1 22-m False Color - Rural Burkina Faso; January 16, 2012
GEOSAT-1 22-m False Color - Central Valley, California; May 22, 2012
GEOSAT-1 22-m False Color - Rural Minnesota; July 31, 2012
GEOSAT-1 22-m False Color - Faro, Portugal; July 23, 2012
GEOSAT-1 22-m False Color - Nile Delta, Egypt; January 6, 2011
GEOSAT-1 22-m False Color - Rio Vichada, Brazil; September 9, 2011

Click on the expand button for a larger view of each image. You can also right-click and save any of the examples to your computer for a full resolution view.

The GEOSAT-1 Advantage

Landsat 7 Replacement
With a footprint more than three times wider than any Landsat mission and higher resolution multispectral imagery, GEOSAT-1 is an excellent substitute for Landsat 7 data with its well documented scan line failures.

Priority Tasking
GEOSAT-1 can be tasked at standard and priority levels in short time periods. This can facilitate comparisons of on-the-ground studies to remotely sensed data – a distinct advantage versus the set revisit times and footprints of the Landsat satellites.

No Blue Band
GEOSAT-1 does not collect imagery with a blue band though a technique has been developed to simulate true color images (i.e. red, green and blue) for applications requiring such.

Change Detection Studies
The footprint of GEOSAT-1 is much larger than any competitor satellite so its archive is robust and growing each day. This makes GEOSAT-1 an ideal sensor for land change studies, particularly those focused on forests, vegetation and agriculture.
Overview & HistoryGEOSAT-1 SpecificationsPricing

GEOSAT-1 was sent into space on July 29, 2009 propelled by a Russian-Ukrainian built Dnepr rocket from the Baikonur Launch Complex, Kazakhstan. This medium resolution satellite features 22-meter (m) resolution with 3 multispectral bands (i.e. green, red and near-infrared/NIR). GEOSAT-1 circles the globe at a maximum orbital height of 680 kilometers (km) collecting more than 5 million sq km of imagery per day with a footprint up to 625 km wide.

Since its launch, GEOSAT-1 has amassed a huge archive covering billions of square kilometers. Imaging the entire United States in just two weeks, GEOSAT-1 is considered by many to be a replacement for the failing but widely-utilized satellite, Landsat 7.

Launch Details
  • Launch Date: July 29,2009 18:46 UTC
  • Vehicle: Dnepr rocket
  • Site: Baikonur Launch Complex, Kazakhstan
  • Expected Mission Life: at least 5 years, greater than 7 years is expected

GEOSAT-1 Components
  • Dimensions: 63.2 cm x 63.2 cm x 108.5 cm, 110 kg (microsatellite)
  • Solar Array: 4 Gallium Arsenide (GaAs) panels, 15 Amp-hour lithium-ion battery
  • Control Systems:
    • Platform – SSTL-100 or MicroSat-100 family, built by Surrey Satellite Technologies Limited, a second generation DMC (Disaster Monitoring Constellation) satellite
    • 3-axis momentum biased attitude control
    • Actuators: 3 magnetorquers, 3 reaction wheels (MicroWheel-10SP-S)
    • Altitude determination: 4 dual-axis sun sensors, dual-vector magnetometers
  • Onboard Storage Capacity: 8 GBytes solid state data recorders
  • Ground Communication Systems:
    • Imagery downlink – up to 80 Mbit/s, X-band
    • TT&C transmission – 9.6 kbit/s uplink, 38.4 kbit/s downlink, S-band
  • Focal Plane:
    • Pushbroom upgraded Surrey Linear Imager Multispectral 6 (SLIM6) sensor
    • 2 banks with 3 cameras mounted in double-barrel cross-track configuration
    • 2 linear array CCD sensors – 14,400 pixels per array, 5 µm/pixel
  • Optical Sensor Assembly: 155.9-mm focal length

Orbit Characteristics
  • Altitude: 642 – 680 km
  • Period: 97.93 minutes
  • Inclination: ~98.13°
  • Direction: sun-synchronous near-circular, north to south (across the lit side of Earth)
  • Equatorial Crossing Time: 10:30 AM local time (approximate; across lit side of Earth)
  • Revisit Frequency: 2 – 3 days (varies with latitude)

Imaging System
  • Spectral Bands: 3-band multispectral (green, red and NIR)
  • Sensor Resolution: 22-m
  • Spectral Band Wavelength Range: (in nm)
    • Green – 520 to 620
    • Red – 630 to 690
    • NIR – 760 to 900
  • Dynamic Range: 8-bits or 10-bits

Collection Capabilities
  • Footprint Width: up to 625 km
  • Maximum Collection Geometry:
    • Strip length, 8-bit mode – 1,800 km
    • Strip length, 10-bit mode – 1,450 km
    • Only collects at nadir imagery
  • Daily Collection Capacity: > 5,0000,000 sq km
  • Georeferenced Horizontal Accuracy: < 1 pixel, ~10 RMSE (global average, dependent on terrain, USDA testing)

Below is the least expensive GEOSAT-1 data offered. Prices increase for new collections and data processing. Note that volume discounts are available.

      • Data Source: archive (greater than 90 days old)
      • Minimum Order Size: 6,000 sq km (per area & date)
      • Product Type: 1:50,000 ortho + 3-band multispectral
      • Price Per Sq Km: $0.08 (more detailed pricing can be found here)

For an exact quote, please contact our Sales Team at sales@apollomapping.com.

Interested in finding out more about GEOSAT-1?

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Sample Imagery
Advantages
Overview, Specs and Pricing

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