SATELLITE IMAGE PROCESSING


ALOS

The size of DAICHI is 3.5m wide x 4.5m long x 6.5m high, with its Solar Battery Paddle is 22m x 3m wide, gross weight is approximately 4 tons, which is one of the largest among Land Observing Satellites.

ALOS major specifications

Launch Date
January 24, 2006
Launch Vehicle
H - IIA
Launch Location
Tanegashima Space Center, Japan
Spacecraft Mass
Approx. 4 tons
Generated Power
(Solar paddle) Approx. 7kw (at End Of Life)
Designed EOL
3-5 years
Orbit Sun
Synchronous, Sub recurrent
Repeat Cycle
46 days
Sub-Cycle
2 days
Altitude
691.65km (Above the equator)
Inclination
98.16 deg.
Attitude Determination Accuracy
2.0 x 10-4 deg. (off-line, with GCP)
Position Determination Accuracy
1m (off-line)
Data Rate
240Mbps (Via Data Relay Test Satellite)
120Mbps (Direct Transmission)
On-board Data Recorder
Solid-state Data Recorder (90Gbytes)
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ALOS has three earth-observing sensors: Panchromatic Remote Sensing Instrument for Stereo Mapping (PRISM) for detecting elevations with high observing land coverage highly accurately, and Phased Array type L - band Synthetic Aperture Radar (PALSAR) for observing land areas day and night regardless of atmospheric weather conditions.


QuickBird

Is a high resolution satellite using a state-of-the-art BGIS 2000 sensor (PDF), QuickBird collects image data to 0.61m pixel resolution degree of detail. the satellite is an excellent source of high resolution environmental data useful for analysis of changes in land usage, agricultural and forest climates. QuickBirds imaging capabilities can be applied to various industries such as Oil and Gas Exploration & Production (E&P), Engineering and Construction and environmental studies

QuickBird Satellite Sensor Characteristics

Launch Date
October 18, 2001
Launch Vehicle
Boeing Delta II
Launch Location
Vandenberg Air Force Base, California, USA
Orbit Altitude
450 Km
Orbit Inclination
97.2, sun-synchronous
Speed
7.1 Km/sec (25,560 Km/hour)
Equator Crossing Time
10:30 AM (descending node)
Orbit Time
93.5 minutes
Revisit Time
1-3.5 days, depending on latitude (30 off-nadir)
Swath Width
16.5 Km x 16.5 Km at nadir
Metric Accuracy
23 meter horizontal (CE90%)
Digitization
11 bits
Resolution
Pan: 61 cm (nadir) to 72 cm (25 off-nadir)
MS: 2.44 m (nadir) to 2.88 m (25 off-nadir)
Image Bands
Pan: 450-900 nm Blue: 450-520 nm Green: 520-600 nm Red: 630-690 nm Near IR: 760-900 nm
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TerraSAR-X

Is a German satellite designed to carry out its task for five years, independent of weather conditions and illumination, and reliably provides radar images with a resolution of up to 1m.

Three operational imaging modes

SpotLight
up to 1m resolution, 10 km (width) x 5 km (length)
StripMap
up to 3m resolution, 30 km (width) x 50 km (length)
ScanSAR
up to 18 m resolution, 100 km (width) x 150 km (length)
StripMap and ScanSAR
acquisition length extendable to 1,650 km

In the future, the PPP-funded TanDEM-X, a twin satellite to TerraSAR-X, will enhance the mission.

The satellite constellation will enable the generation of high-quality Digital Elevation Models (DEMs) on a global scale.

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TerraSAR-X Data of Metro Manila

This image is taken using TerraSar-X satellite.

Mayon Volcano

also known as Mount Mayon, is an active stratovolcano in the province of Albay, in the Bicol Region, on the island of Luzon, in the Philippines.

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