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Envisat ASAR IM Single Look Complex L1 [ASA_IMS_1P]

Envisat ASAR Image Mode Single Look Complex Level 1

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Description

This data product represents a single-look, complex, slant-range, digital image generated from Level 0 ASAR data collected when the instrument is in Image Mode. Seven possible swaths in HH or VV polarisation are available. The product is primarily intended for use in SAR quality assessment and calibration or applications requiring complex SAR images such as interferometry, and can be used to derive higher level products.

The spatial coverage is about 100 km along track per 56 - 100 km across track, and the radiometric resolution is 1 look in azimuth, 1 look in range. The file size is 741 Mbytes. It is worth highlighting that Azimuth pixel spacing depends on Earth-Satellite relative velocity and actual PRF and slant range pixel spacing is given by ASAR sampling frequency (19.208 Mhz).

Auxiliary data include: Orbit state vector, Time correlation parameters, Main Processing parameters ADS, Doppler Centroid ADS, Chirp ADS, Antenna Elevation Pattern ADS, Geolocation Grid ADS, SQ ADS.

Spatial Resolution: Approximately 8m slant range x approximately 4m azimuth.

Details

DATA SET SPECIFICATIONS

Spatial coverage:
90 N, -90 S, -180 W, 180 E
Temporal coverage:
2002-10-18 - 2012-04-08
Date of launch:
2002-03-01
Operators:
ESA
Mission status:
Completed
Orbit height:
800 km
Orbit type:
Sun-synchronous
Swath width:
5 - 1150 km

PROCESSING LEVEL

Level 1b

APPLICABLE TERMS & CONDITIONS

Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions.

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RESOURCES

Auxiliary Data

ASAR Auxiliary Data

Auxiliary Data

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Product Specifications

ASAR Products Specification - Revision C

Product Specifications

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Product Information

Envisat ASAR Sensor Performance, Products and Algorithms

Product Information

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Technical Note

Envisat ASAR Science and Applications

Technical Note

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User Manual

ASAR Product Handbook

User Manual

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Product Specifications

More ASAR Documents

Product Specifications

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Tools

ASAR Software Tools

Tools

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