Space & atmospheric environment modeling for the modern era
SWAN leverages advanced technology and innovative design to deliver critical environmental modeling, ensuring you are fully prepared for real-world mission conditions.
Free version available. Windows application only.
The Space Weather and Atmospheric eNvironments (SWAN) Toolkit
Equinox Technologies developed SWAN to make environmental modeling more accessible, adaptable, and efficient for real-world mission decisions.
SWAN brings together established models and data sources into one application, allowing users to build mission-specific environments, examine historical or potential conditions, and explore how space weather and upper atmospheric conditions vary across a mission timeline.
SWAN represents a new approach to space and atmospheric modeling: one that evolves with user needs, bridges Earth-to-orbit conditions, and replaces static, one-size-fits-all assumptions with adaptable intelligence tailored to real-world operations.
Explore this page to discover what you can do with SWAN.
Tired of working with software from the 90s?
We were. So we built something new.
SWAN makes sophisticated environmental modeling easier to configure, understand, and use—without forcing analysts to build their workflow around outdated interfaces, scattered data sources, or custom scripts.
MISSION WORKFLOW
Model the Environment Your Mission Would Encounter
SWAN combines your mission profile with environmental models to show the conditions your spacecraft may encounter throughout the mission.
USER EXPERIENCE
No manual required.
SWAN is designed to be understood at a glance.
Clean layouts, intuitive workflows, and purposeful widgets make it obvious what to do next—without digging through a manual or relying on a software specialist. Whether you’re an experienced analyst or using SWAN for the first time, you can get to the answers you need without a learning curve standing in the way. Open it, understand it, and get to work.
You shouldn’t need a dedicated expert just to operate your modeling software. And you shouldn’t have to spend hours poring over a user guide.
USERS
Built for your mission.
SWAN is designed for the people who need to understand what a spacecraft or mission may encounter, from launch through orbit and reentry.
Mission Analysts
Evaluate environmental conditions across mission timelines and scenarios.
OUTPUTS
Turn environmental data into usable results
Generate maps, environment profiles, time histories, comparisons, and more.
WORLD MAPPING
Analyze Your Environment on a Global Scale
Explore modeled atmospheric and space conditions with SWAN’s world mapping tool to quickly view global trends and identify where and when conditions change.
Space Operators
Monitor and understand changing space-environment conditions.
Engineers & GNC Teams
Incorporate atmospheric and environmental conditions into mission analysis.
Researchers & Educators
Explore environmental models and conditions through an accessible modeling workflow.
Get SWAN-Lite for free.
No license key required. Download today.
Explore core environmental modeling capabilities with no time limit.
Leave outdated software behind. Meet a modern, intuitive way to work.
What can you do with SWAN?
Atmospheric Environment
Atmospheric density/composition
Atmospheric temperature
Atmospheric drag
Altitude-dependency analysis
Mission Profile
Custom mission builder tool
Launch
Orbit
Trajectory
Custom mission file upload
SWAN mission library (includes sample missions like common orbits)
Analysis & Visualization
Energy-time spectrogram of proton fluxes
Mission timeline analysis, e.g., timestep with most severe space radiation exposure
Analysis of radiation sources contributing to overall exposure
Space Environment
Solar energetic particles (SEPs)
Galactic cosmic rays (GCRs)
Trapped particles
Geomagnetic shielding and activity
Historical conditions
Hypothetical mission dates
World Mapping
2D/3D mapping
Maps of mission trajectory and environment properties
Easy Exporting
Quick, easy access to all plot variations and tabulated data
RELIABLE
Built on established models and data
SWAN integrates established environmental models and trusted data sources together into a unified mission-analysis workflow.
CREME96 • IRENE/AP9 • MSIS • OMNIWeb • CelesTrak • GFZ Kp • NOAA SWPC • NASA
A BETTER WAY TO WORK
Traditional Workflow vs SWAN
Instead of stitching together separate models, datasets, and custom scripts, SWAN gives analysts and operators one place to configure a mission, evaluate its environment, and transform complex data into actionable results that can support mission planning and analysis.
| Traditional Workspace | SWAN | |
|---|---|---|
| Data sources | Multiple sources, files, downloads, and manual data handling | Integrated environmental data sources in one workflow |
| Environmental models | Separate tools and models that may require different workflows | Multiple established models accessible from one application |
| Mission context | Environmental data evaluated separately from the mission profile | Environmental conditions modeled in the context of a specific mission |
| Data processing | Custom scripts, spreadsheets, or manual processing | Guided configuration and built-in processing |
| Visualization | Export, reformat, and build plots in separate tools | Results and visualizations generated directly within SWAN |
| Scenarios | Workflows rebuilt when changing dates, conditions, or mission parameters | Historical and hypothetical mission environments can be explored directly |
| Workflow | Multiple tools connected by the analyst | One application from configuration through results |
THE APPLICATION
Start with SWAN-Lite. Upgrade when you need more.
One application. Two access levels.
Explore the core toolkit for free with no time limit.
SWAN-Lite gives you free access to a core set of SWAN features, no license key required.
$0 always
Full access to the SWAN toolkit.
When you’re ready to commit, request a SWAN license key to unlock the full range of mission analysis capabilities.
$120 / mo
Frequently Asked Questions
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No. SWAN-Lite is the unlicensed mode of the SWAN application.
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No. Anyone can download SWAN and use its available Lite functionality.
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No. If there is a new version of SWAN available, simply download the latest version and run the installer as‑is. Windows will automatically detect it as an updated version of the same application and perform the upgrade. Your new version of SWAN should automatically detect your license key file, if it is still active.
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Your license key unlocks additional functionality in the same SWAN application. You do not need to install a separate version.
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No. Activate your license key in your existing installation.
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Equinox Technologies is committed to supporting academic research and education. To help advance scientific discovery, we offer a 10% academic discount for students, professors, and research labs on all products.
See what SWAN can do for your mission.
