re: NASA SpaceX Launch Saturday 3:22 EDT

Imagine one day where we just through spacecraft into orbit without any thought.

We all wont be alive but shite I bet that will be an awesome sight!

Today’s launch window was instantaneous, but that is not always the case.

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A launch window indicates the time frame on a given day in the launch period that the rocket can launch to reach its intended orbit.[8][9] This can be as short as a second (referred to as an instantaneous window) or even the entire day. For operational reasons, the window almost always is limited to no more than a few hours. The launch window can stretch over two calendar days (ex: start at 11:46 p.m. and end at 12:14 a.m.). Launch windows are rarely exactly the same times each day.[10]

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The launch window is defined by the first launch point and ending launch point. It may be continuous (i.e. able to launch every second in the launch window) or may be a collection of discrete instantaneous points between the open and close.[14] Launch windows and days are usually calculated in UTC and then converted to the local time of where the rocket and spacecraft operators are located (frequently multiple time zones for USA launches).[15]

For trips into largely arbitrary Earth orbits, no specific launch time is required. But if the spacecraft intends to rendezvous with an object already in orbit, the launch must be carefully timed to occur around the times that the target vehicle's orbital plane intersects the launch site.[16]

Earth observation satellites are often launched into sun-synchronous orbits which are near-polar. For these orbits, the launch window occurs at the time of day when the launch site location is aligned with the plane of the required orbit. To launch at another time would require an orbital plane change maneuver which would require a large amount of propellant.

For launches above low Earth orbit (LEO), the actual launch time can be somewhat flexible if a parking orbit is used, because the inclination and time the spacecraft initially spends in the parking orbit can be varied. See the launch window used by the Mars Global Surveyor spacecraft to the planet Mars at [1].

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Per Wikipedia.

Anyone know what time they're shooting for on Saturday?

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Imagine one day where we just through spacecraft into orbit without any thought. We all wont be alive but shite I bet that will be an awesome sight!

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The US should be pouring all of its resources into STEM and solving fuel/propulsion issues. A lot of people are ants going about their lives and don’t see the big picture. Being able to leave earth whenever we want is literally priceless.

Unfortunately most people don’t give two shits about the species as a whole and only care about themselves.

It’s so insane to think about how quickly they are moving up there.

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Or is this where we ignore the hand Boeing, northup grumman, (mcdonnell) douglas, or lockheed martin had?

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You forgot Rockwell Intl...

Hopefully the storms will be more isolated and it won’t be as cloudy on Saturday. Cloudy launches suck because they get in the clouds and out of sight in seconds. Almost happy they scrubbed it so we can see something from the ground Saturday.

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Has to go somewhere.

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Yes it does. But my understanding is that there are at least 3 different types of propellants that are mixed together. I think they separate them to mitigate the danger of ignition.

Looked at her twitter feed and it appears she may be into women.