ASTER

ASTER

ASTER Satellite Sensor (15m)

ASTER satellite sensor is one of the five state-of-the-art instrument sensor systems on-board Terra a satellite launched on December 18, 1999 at Vandenberg Air Force Base, California, USA.

ASTER is a 15 meter, 14 band multispectral resolution instrument. It can be used for change detection, calibration, validation, and land surface studies.

ASTER satellite image data is expected to contribute to a wide array of global change-related application areas, including vegetation and ecosystem dynamics, hazard monitoring, geology and soils, land surface climatology, hydrology, land cover change, and the generation of digital elevation models (DEMs).

ASTER high-resolution satellite capable of producing stereo imagery for creating detailed digital terrain models (DTMs).

ASTER Satellite Sensor Specifications

Launch Date 18 December 1999 at Vandenberg Air Force Base, California, USA
Equator Crossing 10:30 AM (north to south)
Orbit 705 km altitude, sun synchronous
Orbit Inclination 98.3 degrees from the equator
Orbit Period 98.88 minutes
Grounding Track Repeat Cycle 16 days
Resolution 15 to 90 meters
 

The ASTER instrument consists of three separate instrument subsystems:

VNIR (Visible Near Infrared), a backward looking telescope which is only used to acquire a stereo pair image

SWIR (ShortWave Infrared), a single fixed aspheric refracting telescope

TIR(Thermal Infrared)

ASTER has 14 bands of information. For more information, please see the following table:

Instrument VNIR SWIR TIR
Bands 1-3 4-9 10-14
Spatial Resolution 15m 30m 90m
Swath Width 60km 60km 60km
Cross Track Pointing ± 318km (± 24 deg) ± 116km (± 8.55 deg) ± 116km (± 8.55 deg)
Quantisation (bits) 8 8 12

Mexical  US-Mexico Border

Dagze Lake  Tibet

Mineral Mapping  Escondida Mine


Jakarta Landsat ETM7

Jakarta Landsat ETM7

Jakarta Landsat ETM7 15m resolution image mosaics and ASTER city images. Panchromatic sharpened and ..

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