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You’re right. 45.6deg vs 51.8deg N. The eastward boost you get from the earths rotation is just: 2 * pi * cos(latitude)/day so the difference is: 2 * pi * r_Earth*(cos(45.2deg)-cos(51.8deg))/day = 40m/s. Which doesn’t sound like a lot but can add up. I compared Plesetsk (Russia) vs Baikonur (Kazakhstan) in the Silverbird Astronautics calculator for Soyuz v2-1B using 3.3m fairing and without Fregat, and I got 1552kg e…
I never considered this and your response made me ask google the question: "Where is the best place to launch a vehicle?" "The land at the equator is moving 1670 km per hour, and land halfway to the pole is only moving 1180 km per hour, so launching from the equator makes the spacecraft move almost 500 km/hour faster once it is launched." Neat, thanks for such an interesting answer.
Re: Russian Assets Reportedly Seized at Baikonur Cosmodrome by Kazakh Authorities
#151Yeah it's no accident SpaceX built their test launch facility on the beach in Texas, less than 10 miles from the southernmost point in Texas. Brownsville is about 20 miles away and is a natural, true deepwater port which is also helpful, but primary reason was to get as close to the equator as possible while still being on the US mainland. You can throw about 9% more mass into orbit on the equator than from NYC. Florida coastal property is mostly built out and southern Texas is mostly vacant + has a very favorable business climate and lax (state-level) environmental regulations which doesn't hurt either.