Apparently it takes about 100 days for the instruments to cool down far enough. https://planet4589.org/space/misc/webb/time.html https://planet4589.org/space/m

Apparently it takes about 100 days for the instruments to cool down far enough. https://planet4589.org/space/misc/webb/time.html https://planet4589.org/space/misc/webb/time.html