Data Service Request (Restrained): Access to this data collection is provided only after submitting a service request through the ESA User Services Portal. Requests are reviewed and approved by ESA before access is granted, ensuring data is provided according to mission-specific conditions and service availability. 

Access Steps:

1. Create or log into your EO Sign In account.
2. Go to the ESA User Services Portal to complete and submit the form.
3. The request will be evaluated by ESA, which normally takes up to 2 weeks. 
4. Upon successful evaluation you will receive a confirmation email, which describes the amount of data to be provided, and details of how to download the data from the Dissemination Service.

ESA (A)SAR On-the-fly (OTF) data processing and dissemination service allows end-users to gain direct access to the (A)SAR archive from the ERS-1, ERS-2 and Envisat Missions. 

The data is collection based and allows data browse and download through the tree view, filename, as well as via geographical catalogue search based on area of interest and metadata. Interferometric search option is available for relevant collections. Data download is available via HTTPS, including bulk download functionality.

Envisat products can also be discovered through ESA's Exploring Earth service, which allows users to browse and download products among the available datasets from ESA and Third Party Missions and instruments, using various criteria (spatial, temporal). 

For information on the (A)SAR On-the-fly service please refer to the OTF User Manual.

Worldwide

The ASAR Image Mode source packets Level 0 data product offers Level 0 data for possible images processing on an other processing site. It includes some mandatory information for SAR processing.

The Image Mode Level 0 product consists of time-ordered Annotated Instrument Source Packets (AISPs) collected by the instrument in Image Mode. The echo samples contained in the AISPs are compressed to 4 bits/sample using Flexible Block Adaptive Quantisation (FBAQ). This is a high-rate, narrow swath mode so data is only acquired for partial orbit segments and may be from one of seven possible image swaths. The Level 0 product is produced systematically for all data acquired within this mode.

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