# ISS & Satellite Pass Tracker Predict ISS, Hubble, and representative Starlink passes for a chosen observing point and date > Canonical page: https://elysiatools.com/en/tools/iss-satellite-pass-tracker - **Category:** Astronomy - **Keywords:** iss, satellite, pass tracker, hubble, starlink, astronomy ## Overview Uses live TLE data plus SGP4 propagation to estimate pass times, azimuth, peak elevation, duration, and approximate brightness. ## Inputs - **Latitude** (number) - **Longitude** (number) - **Date** (date) - **Satellite Preset** (select) - **Minimum Elevation** (number) - **UTC Offset Hours** (number) ## When to use - When planning backyard astronomy sessions and wanting to spot the ISS or Hubble Space Telescope with the naked eye. - When tracking representative Starlink satellite passes over a specific geographic coordinate. - When setting up astrophotography equipment and needing to know when satellites will cross your field of view. ## How it works - Input your observing location's latitude and longitude coordinates along with the target date. - Select your satellite preset (ISS, Hubble, Starlink, or all common) and set a minimum elevation threshold to filter out low-horizon passes. - The tool processes live TLE orbital data using SGP4 propagation to calculate the exact pass times and peak elevations relative to your location. ## Use cases - Finding the best time to view and photograph the ISS passing directly overhead. - Filtering out low-altitude satellite passes to focus only on high-elevation, clear-sky viewing opportunities. - Coordinating local astronomy club viewing events by exporting precise pass times for a specific date and coordinate. ## Frequently asked questions ### What satellites can I track with this tool? You can track the International Space Station (ISS), the Hubble Space Telescope, and representative Starlink satellites. ### What is the minimum elevation setting used for? It filters out passes that do not rise above a certain angle, helping you ignore passes blocked by local obstructions like trees or buildings. ### How does the tool calculate the satellite passes? It uses live Two-Line Element (TLE) data combined with the SGP4 orbital propagation model to compute coordinates relative to your observer location. ### Do I need to adjust the UTC offset? Yes, entering your local UTC offset ensures the predicted pass times are displayed in your local time zone rather than UTC. ### Can I track satellites during the daytime? 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