ISS passes over Mauritius
Computed from the orbital elements (TLE) fetched with epoch 2026-09-16 01:14 MUT (0.5 days old).
Computed for Port Louis, Mauritius (-20.1609, 57.5012)
No visible ISS passes were found for Port Louis in the next 10 days with current orbital data — this can happen for weeks at a time depending on orbital geometry and season.
Computed with skyfield's satellite propagation against the latest fetched Two-Line Element set (TLE) for the ISS. A pass counts as 'visible' only if the ISS is sunlit AND Port Louis's sky is at least civil-twilight dark (Sun below -6° altitude) at the pass's peak — passes in broad daylight or with the ISS in Earth's shadow are not listed. The magnitude shown is a simplified brightness estimate based on distance alone (it ignores solar phase angle), not a full photometric model.
How is a 'visible' pass determined?
A pass is only listed if, at its peak, the ISS is illuminated by the Sun and Port Louis's own sky is at least civil-twilight dark (Sun more than 6° below the horizon) — the usual conditions for the ISS to appear as a bright, fast-moving point of light. Passes that occur in broad daylight, or while the ISS is in Earth's shadow, are excluded rather than listed as 'not visible'.
Why might this page show no passes?
Either no orbital elements (TLE) have been fetched for the ISS yet, the latest fetched TLE is too old to trust for accurate predictions, or — rarely — genuinely no visible passes fall within the current search window. This page never estimates passes from stale or missing orbital data; it shows an honest note instead.