How satellite access windows are predicted from public orbital elements, why a predicted window is not a guaranteed image, and how to decide between waiting for a free systematic pass and paying to task a commercial one.
2026-08-23 · 7 min read
Sun-synchronous (SSO), polar and geostationary orbits explained: altitude, inclination and repeat cycle, with the orbits Sentinel-1/2 and Landsat fly.
2025-10-28 · 8 min read
Understanding how SAR look direction changes between ascending and descending passes, and why mixing orbits in change detection produces false results. Practical guidance for orbit selection in SAR analysis.
2025-06-01 · 9 min read