Jay Keegan(@_jaykeegan_):The 45 Weather Squadron has published the L-2 day weather forecast ahead of Sunday's Roman Space Telescope launch attempt. They give a 40% chance of violating weather constraints (POV) - 60% PGO. Primary concerns are the Cumulus Cloud Rule and Surface Electrical Field Rule. In the event of a 24h delay, POV improves by 10%, giving a 70% PGO. The only concern would be the Cumulus Cloud Rule. https://t.co/a8M3dIiBFb

Jay Keegan

@_jaykeegan_

Space and Tech enthusiast | Developer and Livestream Operator @NASASpaceflight | Opinions are my own

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Jay Keegan@_jaykeegan_

2026.08.28 14:44

The 45 Weather Squadron has published the L-2 day weather forecast ahead of Sunday's Roman Space Telescope launch attempt. They give a 40% chance of violating weather constraints (POV) - 60% PGO. Primary concerns are the Cumulus Cloud Rule and Surface Electrical Field Rule. In the event of a 24h delay, POV improves by 10%, giving a 70% PGO. The only concern would be the Cumulus Cloud Rule. | @NASASpaceflight

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