I’m Anthony Colangelo.

I write frequently at Main Engine Cut Off and, occasionally, right here.

Formerly: A List Apart and Cognition.

Orbital Services Program-4 Launch Providers Selected

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The RFP was released back in August, and as we heard then, the program contains up to 20 missions that will be competed as they are ready. The selected launch providers are a nice mix of those who are flying today, those who are coming up on their first flight, and those who are still early on in their work.

Thanks to September Patrons

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Very special thanks to the 315 of you out there supporting Main Engine Cut Off on Patreon for the month of September. MECO is entirely listener- and reader-supported, so your support keeps this blog and podcast going, growing, and improving, and most importantly, it keeps it independent.

Juno Executes Long Burn to Avoid Fatal Eclipse

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Sounds like the team didn’t predict such a long eclipse before launch. I wonder how much that’s tied to the fact that Juno is in a 53-day orbit rather than the intended 14-day orbit, due to the propulsion failure earlier in the mission. Nice flying by the Juno team.

Relativity, Momentus Announce Launch Agreement

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Momentus is certainly lining up launches, but I’d love to hear a bit about their customers. On the Relativity side, they’ve got quite a nice little backlog growing, but very few of their launch contracts have much in the way of concrete details.

More Starlink Tweaks

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Any changes that get SpaceX closer to service are great. Speed to at least some level of service is a huge priority for a project as big as Starlink.