Envisat ASAR IM Precision L1 [ASA_IMP_1P]

Envisat ASAR Image Mode Precision Image

Data

28 Nov 2019

DOWNLOAD DATAData is available on EOCAT.

blue arrow DESCRIPTION

This is a multi-look, ground range, digital Precision Image generated from Level 0 data collected when the instrument was in Image Mode (7 possible swaths HH or VV polarisation). The product includes slant range to ground range correction. It is for users wishing to perform applications-oriented analysis and applies to multi-temporal imaging and to derive backscattering coefficients.

The stand-alone image is generated using the Range/Doppler algorithm. The processing uses up to date (at time of processing) auxiliary parameters corrected for antenna elevation gain, and range spreading loss. Engineering corrections and relative calibration are applied to compensate for well-understood sources of system variability. Absolute calibration parameters, when available (depending on external calibration activities) are provided in the product annotations.

This product provides a continuation of the ERS-SAR_PRI product.

Spatial Resolution: 30 m ground range x 30 m azimuth

blue arrow DETAILS

blue arrow 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
Resolution:

blue arrow PROCESSING LEVEL

level 1b,

blue arrow APPLICABLE TERMS & CONDITIONS

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

READ T&C

blue arrow RESOURCES

ASAR auxiliary data
Auxiliary Data
ASAR Products Specification - Revision C
Product Specifications
Envisat ASAR Sensor Performance, Products and Algorithms
Product Information
Range Doppler Algorithm
Technical Report
ASA_IMP_1P File Structure
Product Specifications
Envisat ASAR Science and Applications
Technical Note
ASAR Product Handbook
User Manual
ASAR Level 1 Algorithms
Product Specifications
ASAR Product Quality Disclaimer
ASAR Products Anomalies
More ASAR Documents
Product Specifications
ASAR Software Tools
Tools
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