Version 2.5.2 of the S2G Data Viewer has been released and can be downloaded here.
Release Notes are available here.
User registration is required. Please find detailed instructions here.

New Features
- S2G has been built using the latest DFDL4S v1.61 library
- Internal changes have been performed in S2G to adapt to DFDL4S API
- Option to “Copy Path”/”Copy Value” to the clipboard has been added to the data fields context menu
- An horizontal slider has been added to the Packet List panel
- Added a progress bar with percentage of evolution for data transformation and report generation
- Two new transformations are supported:
- Transformation Annotated ISP –> ISP
- Transformation Annotated CADU –> CADU
- Check for Updates: the new/updated mission JARs are imported automatically in S2G after download, replacing Standard schemas with older version number
- Schema list has been sorted alphabetically
Corrections
- ANR-221: CADU–>TF transformation parameters: Selection not persistent if input is an Annotated CADU
- ANR-222: Report generated during TF–>ISP Transformation contains error messages which are not consistent with the input / output data
- ANR-235: Linux: Restitute alternate row colors in Data Unit List and Fields panels
- ANR-242c: In plots with APID (hex) selected for the y axis, the correspondence between packet number and APID is not correct
- ANR-245: It is not possible to select and scroll across pages in the Hex view: the selection limited to portion visible in the pane
- ANR-247: The feature to double click on a byte in the Hex view to jump to related data unit does not work
- ANR-251: Search does not seem to work if there are packets with ‘Unable to retrieve value’ on that field
- ANR-252: Generating report with padlock locked does not limit the check to top unit level
Updated Mission Schemas
- Aeolus X-Band
- EarthCARE X-Band
- MetOp-SG-A Ka-Band
- MetOp-SG-B Ka-Band
- Sentinel-2 X-Band
- Sentinel-3 X-Band
- Sentinel-5 X-Band
- Sentnel-6 X-Band
- Seosat X-band
- Swarm S-Band
New mission schemas are available for S2G Data Viewer and DFDL4S library.
The mission schemas can be downloaded through the check for updates mechanism within S2G (Help–> Check for Updates) or obtained from the S2G mission schemas page
New Mission Schemas
The following Instrument Source Packets types are decoded:
- Instrument Science Packets
- Instrument Ancillary Packets (both RXM-H and RXM-V)
- Platform Ancillary Packets
Version 2.5.3 of the S2G Data Viewer has been released and can be downloaded here.
Release Notes are available here.
User registration is required. Please find detailed instructions here.

New Features
- S2G has been built using the latest DFDL4S v1.7.0 library
- Internal changes have been performed in S2G to adapt to DFDL4S API
- New Open File dialog
- Implemented ‘drag & drop’ gesture to open files
- It is possible to open a list of files at once or a folder containing a list of files (files must be of the same type)
- New feature to search and filter data product given a data field value
- Pre-defined list of fields are provided in pull-down menu
- Custom field can be provided by manually typing the path to the field or pasting the content of the “Copy Path / Copy Value” from the clipboard
- Added support for Reed Solomon computation in CADU files Sentinel-5/MetOp-SG-A/B (R-S code (255,223) with I=4)
Corrections
- ANR-242ab: Plots improvements
- In plots with APID (hex) selected for the /y axis, the values do not increase based on ‘hex’ value
- Axis ticks for integer data values should not contain decimal digits —> New type yyType=“Integer”
- ANR-253: Stylesheet is not applied to XML report in web browser due to web browser security restricting local file loads by local pages
- ANR-255: S2G reports the expected SSC wrapping as an “Invalid SSC Gap detected”
New Mission Schemas
Updated Mission Schemas
- Aeolus X-Band
- EarthCARE X-Band
- MetOp-SG-A Ka-Band
- MetOp-SG-B Ka-Band
- MTG Ka-Band
- Sentinel-1 X-Band
- Sentinel-2 X-Band
- Sentinel-3 X-Band
- Sentinel-4 Ka-Band
- Sentinel-5 X-Band
- Sentinel-5P X-Band
- Sentinel-6 X-Band
- Seosat X-band
- Swarm S-Band
Version 2.5.4 of the S2G Data Viewer has been released and can be downloaded here.
Release Notes are available here.
User registration is required. Please find detailed instructions here.

New Features
- Added support for Biomass CADU unscrambling algorithm
- New parameter in the mission XML (initialization value for the pseudo-random sequence generator)
- A tooltip showing the packet and file offsets of the selected field appears when hovering over the ‘Size’ column of the Unit Fields tree pane
Corrections
None
Updated Mission Schemas
New mission schemas are available for S2G Data Viewer and DFDL4S library.
The mission schemas can be downloaded through the check for updates mechanism within S2G (Help–> Check for Updates) or obtained from the S2G mission schemas page
New Mission Schemas
Support includes decoding of (Scrambled) CADU, Transfer Frames and the following Instrument Source Packets:
- FLORIS Instrument Science Packets (decoded up to Data Field Header)
- Satellite Ancillary Packets: INST_TM, SAT_TM, PDHU_HK_TM, ICU_HK_TM (decoded up to Data Field Header)
- Satellite Ancillary Packets: NAVATT (fully decoded)
- GNSS Packets (decoded up to Data Field Header)