OPAL User Guide

The NovaSAR-1 OPAL system is a web-based application that is used to prepare and submit proposals for new NovaSAR-1 tasking requests. Proposals submission rounds open at the discretion of the operations team, approximately quarterly. OPAL is currently only open for Australian research and industry.

Access NovaSAR-1 Online Proposals And Links (OPAL)

Before applying, proposers should first familiarise themselves with the following resources:

Last updated: July 2021


1. About OPAL

2. OPAL registration and login

3. Writing proposals

4. Previewing, submitting and searching proposals

5. Proposal assessments

6. Image Success

7. Publications and acknowledgements

8. Changes to OPAL

1. About OPAL

1.1 Using OPAL

OPAL is a web-based application that is used to prepare and submit proposals for new NovaSAR-1 image tasking. To run OPAL, you must be connected to the internet.

OPAL must be used to prepare and submit all acquisition request proposals. The only exceptions are high urgency requests, such as for emergency response, where proposers should contact the team here.

A proposal submitted via the OPAL system will consist of:

  • A cover sheet, created with the OPAL cover sheet editor;
  • An acquisitions table, created with the OPAL acquisitions table editor;
  • A zip archive containing: a proposal justification, created with the software of your choice and submitted as a PDF; an area of interest (AOI) in shp/kml/kmz format. For projects that require multiple AOIs, include a clearly labelled shp/kml/kmz file for each AOI.

The components required within an OPAL proposal.


To begin using OPAL, go to the NovaSAR-1 OPAL home page.

When a proposal round is open, the yellow box on the NovaSAR-1 OPAL home page contains key information about:

  • The name of the proposal round e.g. JUL2021;
  • The time window over which acquisitions can be requested;
  • The deadline for submitting proposals.

 1.2 OPAL supported browsers

The recommended browser for OPAL is Firefox. OPAL also supports Internet Explorer. Other browsers may also work but are not supported. If you are having problems using OPAL with your browser, please make sure you are using a recommended browser.

If using a Firefox browser, set the browser options so the browser will ask you where to save files. Note that for Firefox, the default option is to save all files on your desktop.

For Firefox on Windows, set the download option by opening the browser and clicking on:

Tools >> Options >> Downloads >> ‘Ask me where to save every file’

For Firefox on a Mac, set the download option by opening the browser and clicking on:

Firefox >> Preferences >> Downloads >> ‘Ask me where to save every file’

We recommend that first-time users create and save a dummy proposal cover sheet to test that your browser is working correctly.

1.3 OPAL proposal tools

OPAL provides a set of proposal tools that allow users to:

  • Register as a user and update user details;
  • Create, modify and save proposal cover sheets;
  • Create, modify and save proposal acquisitions tables;
  • Upload zip archives containing areas of interest (AOIs) and proposal justification files;
  • Preview, download and print a proposal as a PDF file;
  • Search the cover sheets of other successful OPAL proposals;
  • Submit, update and withdraw proposals during an application period;
  • Access their own current and previous submissions;
  • View proposal grades and comments provided by the Time Assignment Committee (TAC), who assess the proposals.

These tools are described in detail in the sections below.

1.4 OPAL file handling

Files created using OPAL
OPAL provides tools that allow users to create and edit proposal cover sheets and acquisitions tables. These files are saved onto the user’s local disk using specified filenames. Saved files can be reloaded into OPAL and edited as needed.

Files created using OPAL (cover sheets and acquisitions tables) are in XML format. Please do not try to edit the XML files without using OPAL – this is very likely to make the files unreadable.

Other required files
Other files required in the application can be created using software of your choice and should be uploaded in a single zip archive with a maximum size of 10 MB.

The proposal justification must be in PDF format and not longer than one A4 page.

Area of interest (AOI) files must be in shp/kml/kmz format. For projects that require multiple AOIs, a clearly labelled shp/kml/kmz file should be provided for each AOI.

More information about these files is included in the sections below.

1.5 Getting help with OPAL

During the application process, a set of on-line instructions can be viewed for each OPAL proposal tool. To view these, click on the ‘expand instructions’ link that you will see at the top of the relevant page.

If you are still having difficulties, contact the OPAL administrators at CSIRO Astronomy and Space Science by emailing novasarinfo@csiro.au with the word ‘OPAL’ in the email subject.

2. OPAL registration and login

OPAL may be used without registration to create and save local files. However, proposers need to be registered to submit a proposal to the CCEO, or to access previously submitted files. We strongly recommend that all co-authors included in proposals register with OPAL.

To register with OPAL, go to the NovaSAR-1 OPAL Home Page and click on the ‘Register’ link on the left-hand side. Enter your email address, name, affiliation and a password for OPAL access.

A box may appear stating “There is at least one other user account with this surname in the system”. If you are not on the list please select the option “I am not on the list” and click on “Proceed”.

OPAL will allow you to register either one or two email addresses. The system will register you straight away and will then open a screen for you to log in.

OPAL user accounts are self-managed. Please keep your account details up to date. To change user-registration details, or to request a new OPAL password, use the links to ‘Update your details’ and ‘Change your password’.

To login to OPAL using a registered user account, click on the ‘Login’ link and enter your email address and OPAL password. An optional facility is provided that allows you to automatically log in when you reconnect on the same browser. You may log out at any time.

Unregistered users included in a submitted proposal will receive an email to invite them to register with OPAL.

For account problems, please contact novasarinfo@csiro.au with the word ‘OPAL’ in the email subject.

3. Writing proposals

A proposal submitted to the CCEO via OPAL will consist of three elements:

  • A cover sheet, created with the OPAL cover sheet editor;
  • An acquisitions table, created with the OPAL acquisitions table editor;
  • A zip archive containing: a proposal justification, created with the software of your choice and submitted as a PDF; an area of interest (AOI) in shp/kml/kmz. For projects that require multiple AOIs, include a clearly labelled shp/kml/kmz file for each AOI.

These elements are described in the following sections.

Submitted proposals must contain all three elements.

For the best chance of getting your proposal accepted without modifications we recommend that your AOI(s) are:

  • No wider than the swath width of your selected mode (we are unable to accept wide AOIs which require days of consecutive imaging as this will use a disproportionate part of the CSIRO capacity share).
  • Aligned to the pass direction selected (if applicable) so that full coverage of the AOI can be achieved.
  • No longer than 400kms in length.

If you are unsure whether your AOI is suitable please contact us before submitting your proposal.

3.1 OPAL cover sheet

Cover sheets contain general information about the applicants and the proposal. Cover sheets are created and edited using the OPAL cover sheet editor. Upon launching the cover sheet editor you may choose to either create a new cover sheet or open a previously saved cover sheet.

During the creation of the cover sheet, you will be asked to provide information about the proposal including:

Proposal Details

  • Title

Give your proposal an appropriate Title

  • Have you previously submitted a proposal for this project?

If you are looking to extend an existing project change this to a Yes and complete the Previous proposal number field.

  • Proposal Keywords

Choose the keyword(s) that best define the application(s) that your project will address. To select more than one proposal keyword, select the first option then hold down the control (CTRL) key to select further options.

  • Other Proposal Keywords

If the topics covered in your proposal are not included in the list then please add additional keywords here.

  • Will these observations be used for a PhD thesis?

Leave this as No unless the NovaSAR-1 image will be used in your PhD thesis.


  • Adding investigators

Enter the principal investigator for the proposal, the Principal Investigator will need to be registered on OPAL. The cover sheet editor provides a facility for selecting the contact information for the proposers using the OPAL register of users.  Up to 30 co-authors can also be added who do not have to be registered but contact information (name, email and affiliation) for unregistered users will need to be entered. If you are a student with a supervisor they should be included as a co-author.

NovaSAR-1 Satellite Setup

  • Acquisition date range

Enter the date range covering the full temporal extent of all the acquisitions you are requesting. The dates of specific acquisition windows and regular acquisition intervals for each AOI will be entered in the acquisitions table. The maximum allowable date range is shown on the OPAL. homepage.

  • Location of your Area(s) of Interest (AOI)

List countries, states, territories and/or regions of your area(s) of interest. AOI shp/kml/kmz files should be uploaded with the proposal justification.

Project Summary

You will also be asked to provide a proposal summary including:

  • A concise Proposal abstract (up to 250 words) clearly stating the problem/idea/application and how you plan to use NovaSAR-1 to investigate it. Further details will be included in your proposal justification.
  • A clear and concise Outreach statement (up to 250 words) that explains the aims of the proposed project avoiding technical jargon.
  • Additional Information – If requesting acquisitions at irregular intervals (e.g. to coincide with fieldwork campaigns), the date range(s) for these should be entered here. If you require regular intervals e.g. monthly, every 6 months this should be left blank and entered into the Acquisitions table. If you have detailed image refinements such as viewing angle limits these should also be entered here.

Further information:

  • Page navigation

Cover sheets are created using a guided information collection process broken up into a series of pages. To navigate between the pages, use the ‘previous’ and ‘next’ buttons that are given at the bottom of the pages.

  • Multiple entry fields

Some fields allow multiple entries e.g. proposal keywords. To select more than one option, select the first option then hold down the control (CTRL) key to select further options.

  • Proposal numbers and previous submissions

When a proposal is submitted to the CCEO it is assigned a proposal number. Please use this as a reference in any communications.

If you are submitting a new proposal for a project you have previously submitted e.g. for a project extension, enter the previous proposal number. You should provide the previous number even if your previous proposal was not successful.

  • Saving a cover sheet

Cover sheets can be saved at any time during the editing process and must be saved to your local disk prior to submission. OPAL will advise you if any of the mandatory fields in the cover sheet have not been completed. To save the cover sheet click on the ‘Save cover sheet’ button. This will save all of the information that you have entered.

Cover sheets that have previously been saved can be loaded back into OPAL for further editing.

The completed and saved cover sheet will be uploaded for submission with the other proposal components.

  • Cover sheet session

The cover sheet editor maintains a session on our server that remembers information that you have entered on previous pages. The session will expire if you do not progress to another cover sheet page within 3 hours. In this case, your cover sheet will be reset.

3.2 OPAL acquisitions table

Acquisitions tables summarise the acquisition(s) requested within a proposal. Acquisitions tables are created and edited using the OPAL acquisitions table editor. Upon launching the acquisitions table editor you may choose to either create a new acquisitions table or to open a previously saved acquisitions table.

Further information:

  • Acquisitions

Each AOI should be entered into a new row in the acquisitions table. If requesting acquisitions in multiple modes over the same AOI these will need to be entered on separate lines and will count as 2 AOIs. New acquisition rows will be added automatically as you type. Select an acquisition using the checkbox next to the target name or via the following selection controls:

This will select all currently non-selected acquisitions and de-select any selected ones.
This will select all acquisitions.
This will de-select all acquisitions.

You may delete or duplicate selected acquisitions using the dropdown menu at the bottom of the table.


  • AOI name

The AOI name must match the name of the uploaded AOI file, especially in the case of multiple AOIs. For example, AOI file names: Adelaide.shp, Canberra.shp, Darwin.shp, Hobart.shp, Melbourne.shp, Perth.shp, Sydney.shp; AOI names: Adelaide, Canberra, Darwin, Hobart, Melbourne, Perth, Sydney.

  • AOI Coordinates

Enter the approximate centre coordinates of the AOI. OPAL supports decimal degree coordinate systems. To convert from Degrees Minutes Seconds to decimal degrees please visit here.

  • Area of AOI

Provide the approximate area of your AOI in km². Proposers are expected to be familiar with Australia’s capacity share of the NovaSAR-1 mission. Large AOIs may be automatically rejected. If you are unsure whether your AOI is suitable please contact us for advice before submitting your proposal.

  • Defining imaging dates

Proposers should specify an acquisition time window and then define the frequency of images within this window. All dates/times should be in UTC.

  • Imaging start date

Enter the start date of your acquisition time window.

  • Imaging end date

Enter the end date of your acquisition time window.

  • Acquisition Interval

If you require images at regular intervals (e.g. every 1 month, 2 months, 6 months) please enter the interval here, otherwise, enter “Other” here and details of the dates should be included in the additional information section in the cover sheet. The most frequently we can offer images is once per month to allow opportunities for all users.

  • Imaging mode

More information on the imaging modes available for NovaSAR-1 is available here. The imaging modes are subject to change and additional imaging modes may be added in the future. We strongly suggest you check the archive before selecting a mode as there may be images available that could form part of your study and you may want to use this mode to keep your data collections consistent.

  • Antenna Pointing 

NovaSAR-1 imagery can be acquired with either Left or Right pointing. Indicate the preferred antenna pointing of your acquisitions or select not to specify. More information is available here.

  • Pass direction

NovaSAR-1 imagery can be acquired on both Ascending (South-to-North) and Descending (North-to-South) passes. Indicate the preferred direction of your acquisitions or select not to specify a pass direction. More information is available here.

  • Other Imaging Constraints

Any other imaging refinements such as roll angle limitations should be entered here. If you have detailed requirements enter “cover sheet” here and details should be included in the additional information section in the cover sheet.

  • Saving an acquisitions table

Click the  ‘Save acquisitions table’ button to save your acquisitions to a local disk. This will save all of the rows that are currently in your acquisitions table (regardless of whether they are selected or not). OPAL will advise you if any mandatory fields have not been completed.

  • Loading an existing acquisitions table

OPAL can load a previously saved acquisitions table into the current acquisitions table. The acquisitions will be appended to any existing rows. Brrowse to your saved acquisitions table and click “Load”. Rows within the loaded acquisitions table will be appended to the current table. Older files may not be compatible with the current version of OPAL if there have been major changes to the system.

  • Editing an acquisitions table

OPAL provides some simple editing tools for use with the acquisitions tables. To select a row of the table, use the checkbox next to the AOI name or via the selection buttons for ‘Invert’, ‘All’ and ‘None’.

A set of selected rows can be manipulated by selecting one of the ‘Manipulate rows‘ drop-down box options. Rows can be inserted, moved up or down, sorted in order or deleted.

3.3 Proposal justification and AOI files

The proposal justification and AOI file(s) must be uploaded in a single zip archive. The zip archive must not exceed 10 MB in size. OPAL will not accept larger files.

Proposal justifications can be created using any software but must be submitted in PDF format.

The proposal justification should include:

  1. A summary of the project and any related work or previous acquisitions (including from other satellites).
  2. Specific project goals e.g. test a particular hypothesis, develop a particular method.
  3. An explicit statement about how the proposed NovaSAR-1 acquisitions will address the project goal(s).
  4. Consider the following questions in your response:
    • Why is the project feasible given the amount of data available, the type of data (including acquisition mode) and the characteristics of NovaSAR-1, plus the capabilities of the project team.
    • Does the project demonstrate the potential for scientific excellence, for example, a step-change in the application of SAR data or scientific understanding, or potential for commercialisation? Explain how the project exploits the unique capabilities of NovaSAR-1.
    • Will the project impact upon the Science and Research Priorities identified by the Australian Government (Food, Soil and Water, Transport, Cybersecurity, Energy, Resources, Advanced Manufacturing, Environmental Change, Health) and what are the intended benefits.
    • How will the project contribute to strengthening and the growth of the Australian SAR community/capability, for example leading to new partnerships with other organisations or providing new opportunities for researchers that do not primarily work with SAR data.

Proposal resubmissions
Any proposal that is a resubmission for the continuation of a project (i.e. to extend the number of acquisitions) should also include up to one additional A4 page containing: a report on the project status; a list of the acquisitions to date; details of project outcomes including any reports, products, scientific publications and new collaborations.

Any proposal that is a resubmission of a previously rejected proposal should also include up to one additional A4 page detailing how the new proposal addresses previous TAC/CCEO comments.

Resubmitted proposals must include the proposal number assigned to the previously submitted proposal in the project title.

The following rules should be followed or the TAC may reduce the proposal grade:

  • The PDF file must not exceed one A4 page including figures and references.
  • Figures should be clearly labelled with descriptive captions.
  • Proposal justifications should be formatted such that they are easy to read on-screen and in print.
  • The proposal justification should be written in clear English and aimed at a scientist who is a non-expert in your particular field.

AOI file(s)
For projects that require multiple AOIs, you will be required to upload a clearly labelled file for each AOI. For example, if your AOI includes major Australian cities, upload a file for each city: Adelaide.shp, Canberra.shp, Darwin.shp, Hobart.shp, Melbourne.shp, Perth.shp, Sydney.shp.

4. Previewing, submitting and searching proposals

4.1 OPAL proposal permissions

Any member of a proposal team with an OPAL registration may submit, update or withdraw a proposal during an applications period.

4.2 Preview a proposal

To use the preview tool, click on the ‘Preview a proposal’ link on the OPAL home page.

Using the browse buttons, upload each of the required application files:

  • A cover sheet, created with the OPAL cover sheet editor;
  • An acquisitions table, created with the OPAL acquisitions table editor;
  • A zip archive containing: a proposal justification, created with the software of your choice and submitted as a PDF; a clearly labelled shp/kml/kmz file for each area of interest (AOI).

Click on the ‘preview’ button. OPAL will then generate a PDF file containing the cover sheet and acquisitions table and open this in your browser. You may choose to save this file to your local disk by clicking on the ‘save a copy’ button (for Firefox and IE browsers).

4.3 Submit a proposal

To submit a proposal to the CCEO, you must ensure that you have prepared all components of the application:

  • A cover sheet, created with the OPAL cover sheet editor;
  • An acquisitions table, created with the OPAL acquisitions table editor;
  • A zip archive containing: a proposal justification, created with the software of your choice and submitted as a PDF; a clearly labelled shp/kml/kmz file for each area of interest (AOI).

Click on the link on the OPAL home page to ‘Preview a proposal’.

Use the browse buttons to load in the three proposal files and then click on the ‘submit’ button. This button will only be available when the Observation semester is open for proposal submissions.

Once your proposal has been submitted, OPAL will show you a web page that lists all your current and past proposals.

OPAL will send an email acknowledgement of the submission to any co-authors on the proposal with valid email addresses.

4.4 List, update, withdraw and access proposals

List and access your proposals
To list all your current and previous submissions, click on the link on the OPAL home page to ‘List and access your proposals’. The top section of this listing will show any proposals submitted for the next proposal deadline. The bottom section shows proposals submitted for previous submission periods. This tool includes the TAC comments and grades for all proposals.

Update a proposal
To update a current proposal – First, use the link to ‘List your proposals’. Then click on the ‘Update proposal‘ item which is listed in the ‘actions’ column. You may then reload the proposal files and send them as an update to the same proposal.

It is the responsibility of the proposers to ensure that the correct files are uploaded. Please use the Update Proposals tool carefully! Note that updating a proposal submission will overwrite any files sent to the CCEO in an earlier submission. You should ensure you retain any files locally that you want to keep.

Withdraw a proposal
To withdraw a proposal, use the proposal listing as above and click on the ‘Withdraw proposal’ item, which is listed in the action column. OPAL will ask you for confirmation before doing this.

Access files from a previous submission
OPAL allows you to access and download any of the files from previous OPAL submissions for proposals that include you as an author.

To access previously submitted proposals, use the proposal listing as above. This will list the individual proposal files for each proposal, and a PDF file generated for the full proposal. To save these files to your local disk, click on the filenames and use the save options.

Receive email notifications of proposal updates
OPAL will send an email to all proposers when a proposal is submitted. To receive email notifications of further updates to the proposal, use the proposal listing as above. Then set the toggle switch under ‘Notification’ to ’email me if proposal is updated’. To stop further emails being sent set this to the ‘do not email me’ option.

Searching proposals
This tool provides access to the proposal cover sheets and acquisitions tables of all accepted proposals. To search for proposals, click on the ‘Search proposals’ link on the OPAL Home Page and fill in your search criteria.

5. Proposal assessments

Proposals undergo a technical assessment by a Time Assignment Committee (TAC – described below) on their potential to contribute to science/industry/innovation. Proposals also undergo a prioritisation assessment by the CCEO. Assessment outcomes are released approximately 1 month after each proposal round closes.

5.2 Implementation review by the CCEO

Once a proposal round has closed the CCEO will initially review the AOI, the requested imaging frequency and any further imaging refinements to determine the:

  • Capacity share usage
    • if your project will use up too large a share of the CSIRO Capacity then we will contact you to see how this can be refined before passing it on for technical review
    • does the project conflict with other mission partners priority AOIs?
  • Ease of implementation
    • how specific are the requirements – are they broad enough to allow for the requested volume and/or frequency of images to be acquired and are they narrow enough to reasonably include in the acquisition plan
    • are there clashes with existing or other submitted projects and can these clashes be managed
  • Appropriate choice of imaging constraints 
    • does the chosen mode offer the right coverage for the size of the AOI?
    • does the chosen pass direction best suit the shape of the AOI?
  • Proposers are reminded that higher priority will be assigned to proposals led by Australian proposers, and for studies over AOIs within Australia. 

The CCEO review will not directly affect the TAC scoring but if there are multiple projects with similar scores that are being debated by the TAC, the ease of implementation will affect the outcome.

5.2 Technical review by the Time Assignment Committee (TAC)

The Australia NovaSAR-1 Time Assignment Committee (TAC) is appointed by the CCEO. The TAC encompasses members of the CSIRO SAR Community of Practice and the CCEO Advisory Committee. The TAC is supported by a group of external readers who are appointed by the CCEO and are drawn from both the national and international communities. TAC readers review a subset of the proposals relevant to their area of expertise. All TAC members and readers operate under a set of agreed procedures and responsibilities.

Each proposal is typically reviewed by three individuals, at least one of which is a TAC member and two of which may be TAC readers. TAC readers and members provide grades and comments for their allocated proposals using the following guidelines:

TAC technical score
5 outstanding proposal
4 well above average proposal
3 reasonable proposal
2 below average proposal
1 technically/scientifically unfeasible proposal

5.3 Assessment outcomes and acquisition scheduling

After the TAC’s grades and comments are finalised, an email is sent to all proposers for that round (and who have valid email addresses in OPAL), informing them that the grade and comments can be viewed in OPAL.

The TAC may choose to initially award reduced time allocations if a small pilot study is required to demonstrate success before a large project can commence. Note that all projects, especially those requesting imagery for more than one year, will be subject to review as the CCEO see fit, to ensure that projects are best aligned with the objectives of Australia’s NovaSAR-1 capacity share.

Scheduling of imagery requests will be subject to a rank that combines both the TAC technical score and CCEO implementation review.

The CCEO’s ability to fulfil NovaSAR-1 image requests is dependent upon prioritisation with other NovaSAR-1 capacity share partners. There may be instances where, due to existing imaging commitments or restrictions on Australia’s NovaSAR-1 capacity share, proposers are asked to adjust their imaging requirements. Resolutions will be sought on a case-by-case basis and the proposer may be asked if it is possible to postpone or reduce the scope of the study.

For queries on proposal scores or comments, please email novasarinfo@csiro.au, with the word ‘OPAL’ in the email subject.

6. Image delivery and missed acquisitions

All NovaSAR-1 imagery is made available to download via the NovaSAR-1 National Facility Datahub. To access the Datahub you must register. By registering, users agree to the NovaSAR-1 National Facility Datahub Terms and Conditions and the End User Licence Agreement.

Imagery is uploaded to the Datahub as soon as it is received at the groundstation and processed by CSIRO. Data is not subject to proprietary periods.

Whilst the CCEO will do everything possible to ensure that all required images are acquired for successful proposals. However, there are a number of circumstances outside our control that may prevent this such as:

  • temporary satellite failure
  • image-processing failure
  • satellite unavailability due to firings
  • higher priority requests from another mission partner

The CCEO also reserve the right to use Australia’s NovaSAR-1 capacity share for high priority applications, such as for natural disasters, when deemed necessary.

The CCEO will endeavour to avoid clashes between planned observations and emergency or opportunistic image requests. The CCEO accepts no responsibility for any consequences arising from images that are not collected or delivered.

However, if planned acquisitions are displaced under any of the above circumstances, a reasonable attempt will be made to replace the acquisitions lost.

The following guidelines apply:

  • where there are extra imaging opportunities within the specified timeframe i.e month, these will be tasked if the capacity allows
  • if no opportunities remain in the specified timeframe we can extend the imaging period if compatible with the project requirements
  • replacement time cannot displace other scheduled observations that have no alternative date in the timeframe
  • once allocated, a replacement slot will take the status of a normal observation and may still be displaced by another request

7. Publications and acknowledgements

When registering as a user of the NovaSAR-1 National Facility Datahub, users agree to the NovaSAR-1 National Facility Datahub Terms and Conditions and the End User Licence Agreement.

Users who obtain NovaSAR-1 data via the CCEO must acknowledge CSIRO and Surrey Satellite Technology Limited (SSTL), who operate the NovaSAR-1 satellite, in any publications.

The following text should be used:

© SSTL 2021 (or another year of production) NovaSAR-1™ Level 1 Data 

The Data used to produce this [insert name of report/product/service as appropriate] was generated by the NovaSAR-1™ satellite owned and operated by Surrey Satellite Technology Limited and provided by CSIRO as an authorised licensor of the SSTL Data 

Please email novasarinfo@csiro.au with the details of any publications that include NovaSAR-1 data obtained via the CCEO.

8. Changes to OPAL

Any major changes or updates to the OPAL system and OPAL User Guide are recorded in this section.