SpaceX Prepared for 'Most Difficult Launch Ever' - STP-2 FH launch

[bxr140]

is it the payload weight, or the trajectory that makes this complex?

I’m going to guess a big part of the ‘complexity’ comment is the fact that it’s so many and varied satellites. The SSOA mission launched more payloads but pretty much [if not] all of the payload aggregation and deployment activity was Spaceflight, not SpaceX.

 

[Rand0mized]

Are you folks meeting up somewhere? I would love to get in on this.

I am definitely going. Trying to find best viewing spot to see landing.

 

[Grendal]

Webcast:

 

[Grendal]

Everyday Astronaut's livestream play by play of the launch:

 

[Sparky]

Going. Seen plenty of launches but no booster landings!
Fingers crossed. I have 6 years of my work life strapped into that fairing.

 

[Electroman]

Going. Seen plenty of launches but no booster landings!
Fingers crossed. I have 6 years of my work life strapped into that fairing.

Wow nice. Which payload and what is the nature of the work? If you have that detailed in another post, please post a link.

thanks

 

[BoerumHill]

24 different payloads into three different orbits, resulting in multiple re-lights of the Merlin 1D engine powering the rocket's second stage.

 

[Grendal]

Someone overwrote the first post and changed the thread title for this launch thread. Here are the pertinent details for the launch.

Launch Date: June 24
Launch Window: 0330-0730 GMT on 25th (11:30 p.m.-3:30 a.m. EDT on 24th/25th)
Launch site: LC-39A, Kennedy Space Center, Florida
Booster Recovery: Yes - Side Boosters RTLS and Center Core ASDS (furthest out ever)
Booster Type: Reused Side Boosters - B1052.2 and B1053.2 - New center core B1057.1
Mass: TBD
Orbit: LEO and MEO with 24 different payloads

 

[bxr140]

That’s a massive launch window!

 

[Brass Guy]

That’s a massive launch window!

Hmm... mass and energy have a relationship, but how does time convert to mass?

 

[adiggs]

Hmm... mass and energy have a relationship, but how does time convert to mass?

mmm -- slowly.

 

[bxr140]

...how does time convert to mass?

It converts hugely. This I can tell you.

 

[mongo]

Hmm... mass and energy have a relationship, but how does time convert to mass?

Depends on the units. One Roman Catholic mass = 45 minutes.
Due to relativistic effects of the equinox and solstice, Easter and Christmas masses run about double in terms of time.

Greek Orthodox can run 4 hours per mass unit.

 

[ecarfan]

With the launch window opening in 13 minutes, I’m surprised the webcast has not started yet
STP-2 MISSION | SpaceX

 

[SMAlset]

Ready and waiting. Yes that is kind of unususl since they feature some of the technology that’s going up.

 

[adiggs]

Can they launch without a webcast so we can follow along?!?

There must be a law of physics or something that says no!

 

[Electroman]

Everyday Astronauts webcast is moved by 2.5 hours to 2 am EST... looks like there is a delay

 

[SMAlset]

How are weather conditions out East there?

 

[adiggs]

This site says delayed until 2:30am eastern time.
SpaceX launch of a Falcon Heavy | STP-2

EDIT: And the webcast is also updated to indicate that it'll be live in 3 make that 2 hours. I take that to mean the rocket is scheduled to launch in 3 hours, and the webcast will actually start up in 2hours and 10 minutes or so (that's gotten me before, tuning in about 5 minutes after launch)

 

[SMAlset]

Hmm the SpaceX site said live in 3 hours and just mentioned to my husband and now looking at it now says Live in 2 hrs. (11:30pm PDT). See you guys back then.