About ISSINFO Tracker
This project is the work of Neil and Leo Johnson to learn coding and pursue our passion for space.
Contact: info@issinfo.net
Advertising: Interested in advertising on ISSINFO Tracker? Contact us at info@issinfo.net to discuss opportunities.
Data Sources & APIs
- ISSINFO API – Serves locally propagated ISS state & 24‑hour history
- CelesTrak Stations TLE – Source orbital elements (NORAD ID 25544) we propagate on our server
- go-satellite (SGP4) – Library used for on‑the‑fly orbit propagation
- OpenStreetMap Nominatim – Reverse geocoded country / ocean for sub‑satellite point (best‑effort)
- Open Notify astros.json – Current people in space list
- The Space Devs – Supplemental astronaut & mission reference data
- NASA Space Station Blog – Mission & operations news
- FlagCDN – Country flags for astronaut nationalities
Technologies Used
- Go (Golang) – Backend server and API endpoints
- Docker – Containerization and deployment
- Nginx – Web server and reverse proxy
- Debian – Base OS for containers
- Bootstrap 5 – Responsive CSS framework
- HTML5 & CSS3 – Markup and styling
- JavaScript – Client-side interactivity
- imaging – Go image processing library
- go-avif / libavif – AVIF image optimization
- Orbitron Font – Space-themed typography
- OpenStreetMap & Leaflet – Interactive world map
- Chart.js – Real-time data visualization
Privacy & Analytics
We are committed to protecting your privacy. ISSINFO Tracker uses Plausible Analytics, a privacy-focused, GDPR-compliant analytics service that respects your privacy.
Our Analytics Approach
- Cookie-Free: Plausible doesn't use cookies or store personal data
- No IP Tracking: Your IP address is never logged or stored
- No Cross-Site Tracking: We don't track you across other websites
- GDPR Compliant: No consent banners needed - compliant by design
- Open Source: Plausible's code is fully open source and auditable
What We Collect (via Plausible)
- Page Views: Which pages are visited and when
- Referrer Sites: Which external websites send visitors to us
- Browser Type: General browser information (Chrome, Firefox, etc.)
- Country: Approximate country location (derived from IP, but IP not stored)
- Device Type: Desktop, mobile, or tablet (for responsive design optimization)
What We DON'T Collect
- Personal Information: No names, email addresses, or contact details
- IP Addresses: Never logged or stored by us or Plausible
- User Tracking: No individual user identification or behavioral profiles
- Cookies: No tracking cookies or persistent identifiers
- Precise Location: No GPS coordinates or exact geographical data
- Personal Browsing: No detailed click tracking or interaction monitoring
Data Storage & Retention
- EU Servers: All data stored on Plausible's servers in the European Union
- Retention Period: Analytics data automatically deleted after 24 months
- Aggregated Only: All data is aggregated and cannot be traced to individuals
- No Data Sales: Your data is never sold or shared with third parties
Contact Us
If you have any questions about our data handling practices, your privacy rights, or want to request deletion of your data, please contact us at info@issinfo.net.
Last updated: August 18, 2025