50-cm Zoom Processing
Through SI Imaging proprietary Zoom processing, 50-cm panchromatic and 2-m 4-band multispectral products are now available.
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sales@apollomapping.com (303) 993-3863KOMPSAT-3 Satellite
Kompsat-3 satellite offers afternoon collection times and 4-band imagery with 70-cm resolution.
Sample imagery
KOMPSAT-3 50-cm Natural Color (Zoom processing)–Huludao, China; July 25, 2020 View Full Size Image
The KOMPSAT-3 Advantage
14-bit Depth
With industry leading bit depth, KOMPSAT-3’s sensors are more sensitive to small changes in surface reflectance. This is crucial for accurate spectral analysis.
Afternoon Collections
KOMPSAT-3 is the only multispectral satellite to collect imagery in the afternoon. This can be important for agricultural studies as chlorophyll concentrations vary throughout the day.
Cloudy Area Tasking
In some area, skies tend to be clearer in the afternoon, for instance over tropical islands. For these locations, KOMPSAT-3 is the choice for a new collection.
An Older Sibling, KOMPSAT-2
Launched on July 28, 2006, KOMPSAT-2 features 1-m panchromatic and 4-m 4-band multispectral imagery. Ask your Apollo Mapping sales representative for pricing and coverage details!
Overview & History
Launched from Japan’s Tanegashima Space Center on May 17, 2012, KOMPSAT-3 is the first sub-meter optical satellite developed and operated by the Korea Aerospace Research Institute (KARI). Orbiting our planet at 685 kilometers (km), KOMPSAT-3 collects 70-centimeter (cm) panchromatic and 2.8-meter (m) 4-band multispectral (i.e. blue, green, red and near-infrared/NIR) imagery. Introduced in 2020, Zoom processing by SI Imaging enhances the sharpness of raw KOMPSAT 3 imagery to produce 50-cm panchromatic and 2-m 4-band multispectral products.
KOMPSAT-3 separates itself from other multispectral high-resolution satellites with afternoon collection times and 14-bit depth imagery. This makes the Korean satellite an excellent choice for agricultural studies as well as a compliment to imagery collected in the morning.
KOMPSAT-3 Specifications
Launch Details
- Launch Date: May 17, 2012, 16:39 UTC
- Vehicle: H-IIA launch system
- Site: Tanegashima Space Center, Japan
- Expected Mission Life: at least 2019
KOMPSAT-3 Components
- Dimensions: 3.4-m height x 2.0-m diameter (6.4-m with deployed solar arrays); 980 kg
- Power Systems: 3 deployable fixed solar arrays, 1.3 kW, 48 Saft VES 100 Li-ion cells, 104 Ah
- Control Systems:
- 3-axis stabilized
- Actuators–gyros
- Altitude determination–star trackers and GPSR
- Onboard Storage Capacity: 512 gigabytes
- Ground Communication Systems:
- Imagery & metadata downlink–640 Mbits per second, X-band
- Commands–S-band
- Focal Plane:
- Panchromatic CCD module–linear array, 2 stacks, 12,000 pixels/stack
- Multispectral CCD module–linear array, 8 stacks, 750 pixels/stack
- Optical Sensor Assembly: 80-cm diameter primary mirror, 8.6-m focal length
Orbit Characteristics
- Altitude: 685.13 km
- Period: 98.5 minutes
- Inclination: 98.13°
- Direction: sun-synchronous circular, north to south (across the lit side of Earth)
- Equatorial Crossing Time: 13:30 local time (approximate; across lit side of Earth)
- Revisit Frequency: (at 40° lat)
- 1.4 days (< 45° off-nadir)
- 4.1 days (< 20° off-nadir)
Imaging System
- Spectral Bands:
- Panchromatic
- 4-band multispectral (blue, green, red and NIR)
- Sensor Resolution:
- At nadir–70-cm panchromatic & 2.8-m multispectral
- 20° off-nadir–82-cm panchromatic & 3.28-m multispectral
- 30° off-nadir–1.02-m panchromatic & 4.08-m multispectral
- 45° off-nadir–2.11-m panchromatic & 8.44-m multispectral
- Zoom processing–creates 50-cm panchromatic & 2-m multispectral products
- Spectral Band Wavelength Range: (in nm)
- Panchromatic–450 to 900
- Blue–450 to 520
- Green–520 to 600
- Red–630 to 690
- NIR–760 to 900
- Dynamic Range: 14-bits
Collection Capabilities
- Footprint Width: 16 km (at nadir)
- Maximum Collection Geometry:
- Mono, strip mode–16 km x 4,000 km (1 strip wide)
- Mono, wide area mode–48 km x 100 km (3 strips wide)
- Stereo, single pass mode–16 km x 200 km (2 pairs wide)
- Retargeting Ability: 10 sec (time to slew 200 km)
- Daily Collection Capacity: 300,000 sq km
- Georeferenced Horizontal Accuracy: 48.5-m CE90 (global average, dependent on terrain)
Pricing
Data Source
archive (greater than 60 days old)
Minimum Order Size
25 sq km (per area & date)
Product Type
georeferenced + natural color or 4-band
Price Per Sq Km
Looking for a KOMPSAT-3 spectral response curve to be used in an atmospheric correction and/or radiance conversion?
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