AndøyaA launch window opens 4 September here.

Shipping warnings revealed the date before Isar Aerospace made any announcement.

Norway’s coastal authority flagged two danger zones matching Isar’s prior launch site, though neither notice names the company.

The rocket has been scrubbed four times since January over valves, weather and fluid-system faults.

How each outlet framed it
European Spaceflight
reconstructs corporate activity from bureaucratic records — Norwegian maritime safety notices confirm launch window without company public announcement

Sources: European Spaceflight