/sci/ - Science & Math

COUNTDOWN
HR/MIN/SEC EVENT
00:38:00 SPACEX LAUNCH DIRECTOR VERIFIES GO FOR PROPELLANT LOAD
00:35:00 RP-1 (ROCKET GRADE KEROSENE) LOADING UNDERWAY
00:35:00 1ST STAGE LOX (LIQUID OXYGEN) LOADING UNDERWAY
00:16:00 2ND STAGE LOX LOADING UNDERWAY
00:07:00 FALCON 9 BEGINS ENGINE CHILL PRIOR TO LAUNCH
00:01:00 COMMAND FLIGHT COMPUTER TO BEGIN FINAL PRELAUNCH CHECKS
00:01:00 PROPELLANT TANK PRESSURIZATION TO FLIGHT PRESSURE BEGINS
00:00:45 SPACEX LAUNCH DIRECTOR VERIFIES GO FOR LAUNCH
00:00:03 ENGINE CONTROLLER COMMANDS ENGINE IGNITION SEQUENCE TO START
00:00:00 FALCON 9 LIFTOFF

LAUNCH, LANDING AND DRAGON DEPLOYMENT
HR/MIN/SEC EVENT
00:01:12 MAX Q (MOMENT OF PEAK MECHANICAL STRESS ON THE ROCKET)
00:02:32 1ST STAGE MAIN ENGINE CUTOFF (MECO)
00:02:36 1ST AND 2ND STAGES SEPARATE
00:02:43 2ND STAGE ENGINE STARTS
00:03:11 FAIRING DEPLOYMENT
00:07:04 1ST STAGE ENTRY BURN COMPLETE
00:08:42 1ST STAGE LANDING
00:08:58 2ND STAGE ENGINE CUTOFF (SECO-1)
00:14:54 STARLINK SATELLITES BEGIN DEPLOYMENT

>>11759183
Does elon have investors for starlink or is he burning through his nasa bux on these launches?

>>11759223
Probably a combo of his own money and cash from the funding raises that Spacex does every once in a while. Spacex has gotten a lot of fucking money from those, I think the most recent was half a billion.

>>11759223
He's raising money with private stock offerings.

>>11759183
cringe

>>11759188
also cringe

>>11759223
Starlink has some deals with the military. It's a money burner while the infrastructure is being set up though

>>11759241
stock offerings in spacex or in starlink internet company?

>>11759241
God i wish i could get in on that

>>11759274
no difference, SpaceX is Starlink. The rumor that they might spin it off is false

>>11759261
continual money burner too; gotta re-launch satellites every 5 years or whatever. Although, Elon said that the 2nd gen sats will last much longer?

>>11759188
gods i love that reused look

>https://www.youtube.com/watch?v=y4xBFHjkUvw
Live in 93 minute

>Starlink is ruining muh precious night sky. Our kids will never see the stars (even though I live in the city and don’t see stars already)
How am I supposed to refute this

>>11759312
Point and ask them where Starlink is right now that's blocking their view of night sky.

>>11759312
Most people in the developed world can't see most of the stars anyways due to city light pollution. Also the sats are only visible near sunset and sunrise, the midnight views are clear.

>in4b but the astronomers
Two words: Space Telescopes. They're better than Earth based ones in every way except ease of access.

>>11759312
honestly it's not gonna be a big issue; https://www.spacex.com/updates/starlink-update-04-28-2020/ SpaceX seems to know what to do. The bigger problem is ground-based light pollution (& air pollution, water pollution....).

>>11759285
what happened to "spacex won't be public because you can't pursue space when you're liable to stockholders"

If the marginal cost of a reused Falcon 9 booster plus a reused Crew Dragon is 20 million per launch and they fill all seven seats, we could see trips to orbit for as low as 3 million dollars.
>>11759283
Buy Tesla stock until the Starlink or SpaceX IPO. I told you nerds a couple of months ago to buy it when it was $420 a share and it's now almost $900.

>>11759285
In 5 years re-flight costs should be more than covered by Starlink's own income. Hopefully by that time they're firing them off in starships in the gigazillions as well

>>11759283
Buy Tesla stock until the Starlink or SpaceX IPO. I told you /sfg/ nerds a couple of months ago to buy it when it was $420 a share and it's now almost $900.

If the marginal cost of a reused Falcon 9 booster plus a reused Crew Dragon is 400 million per launch and they fill all seven seats, we could see trips to orbit for as low as 33 million dollars.

>>11759344
I don't know why you are trolling using the comment I posted in the wrong thread. The marginal cost of a reused Falcon 9 is around 15 million, I added 5 million for the cost of a reused Crew Dragon to give an approximation.

>>11759328
that's still true, why?

>>11759340
Musk mentioned that the tricky part for profitability was the user terminals in a recent interview. Can't have them be too expensive.

Think there will be a twilight phenomenon on this one, or is the launch too late after sunset?

>>11759312
ez
>doesn't affect real astronomy, only hobbyists who contribute nothing are affected, and even then only a small subsset of them
>The money gained from such a system is used to fund space-x which means super cheap launches for large payloads which means massive space telescopes that will advance astronomy far beyond what any earth based system can do
>99% of the people who make this complaint forget that light pollution and airplanes exist and it doesn't seem to bother their enjoyment of the night sky. it's unlikely they really care

>>11759377
depends where you live:
https://james.darpinian.com/satellites/?special=starlink

>>11759408
I mean on the rocket, not the satellites.

>>11759412
oooh yeah, those space-squids. I honestly don't know—but I recall someone online had the parameters figured out.

>>11759361
public or private, stakeholders that only care about the money and not advancing space are a hindrance which is why he didn't want it for spacex. if he has private investors funding starlink which is not a separate entity from space x then I don't see how this is anything but bad for space x

>>11759312
SpaceX is making launches cheap enough that your kids will be able to see space in person some day.

>>11759431
Gotta raise money somehow. & The raising isn't unique to Starlink; SpaceX has been going through those rounds for forever.

>>11759431
Agreed. if spacex went public it would stagnate. Starlink has more wiggle room, but if spacex ever went public I would be crushed

>>11759341
I wanted to but i just started my career and buying a 420 a share stock would be too much

nasaspaceflight peeps are streaming, if anyone cares https://www.youtube.com/watch?v=Ccp4jg0pHI4

>>11759475
You can buy fractional shares but like with nearly anything you can't expect much profit without a serious investment. I started with 37 shares that I bought at $220 per share last year. I kept taking profit as the share price got really high and rebuying as it dropped. I sold everything just before Corona tanked the price. I now have 50 shares and $15,000 worth of profit that I'll use for other investments. Tesla could drop to zero and I would have still made 7k.

launch auto sequence has started

>>11759485
NatGeo and NBC DMCAs on stand by

Musk is the kind of guy who follows "I Fucking Love Science" on facebook and then smirks at people while reciting Snapple facts.

>>11759292
>reused
flight-proven*

>>11759249
fuck your bitterness 2bh, space shit is objectively cool

SpaceX LIVE

we /live/
also fairing catch habbening or no?

ITS GONNA CRASH I FEEL IT I FEEL IT FUCK FUCK FUCK IM NEVER WRONG ABOUT THIS OH FUCK IM SO SORRY /sci/ FUCKING SHIT

>>11759541
Soon.

>>11759540
yes;
>Fairing recovery: On fairing recovery vessels 'Ms. Tree' & 'Ms. Chief'
probably no live coverage of it like normal

/night launch/

>>11759546
>probably no live coverage of it like normal
but the recovery is my favorite part

we synthwave now

>>11759548
eh If they catch em SpaceX sometimes puts the video up on twitter. I don't think they've had a double-catch yet too?

>>11759549

its time for the pre-launch dance party

jesse <3

CUTE

could you imagine if jesse was your engineering director? what a cutie

>>11759552
Have they ever put his music on stream?

Well she's pretty.

>>11759561
I'd let her manage my booster erection.

SLC-40 sure is a bit different then LC39-A

SpaceX has best waifus

>>11759556
Jesse is the second worst host, next to that black woman. Someone post Jesse's cringe rap video before she decided to become a diversity hire at SpaceX.

Holy shit, this stage was the first Starlink and the third too? That's pretty cool I think I watched both of those.

LIVE CAMERA ON THE RECOVERY BARGE
WE /LANDING STREAM/ NOW

jrti has more soul than ocisly, prove me wrong

>>11759576
wonder how big A Shortfall of Gravitas will be

>>11759571
no bully

Do fairings that miss the boats have any flotation device on them, or do they just slip into the depts?

WE GET TO SEE THE RECOVERY LETS GOOOOOOOOOOOOOOOOOOOO

Why have all fairings up until starship been disposable and not configured as a clamshell?

>>11759583
they displace a lot and are pretty light, they just float

>>11759583
They float and get pulled out of the water

>>11759587
No pressure to reduce costs.

>>11759585
I think it was Elon complaining at HQ "we can launch humans to space, land rockets, but we can't livestream from a ship?"

Reddit kek

3 MINUTES FUCKKKKKKKKKKKKKK

>reddit
noooooooooooooooo

>R*ddit

>reddit

welp boys guess I’m #TeamBoing now

>>11759591
what about the falcon 9? It's great they're starting with starship but I'm just wondering what was stopping them from doing it earlier

>>11759588
>>11759590
Good, I'm glad. I wonder how much harder refurbishing is after a saltwater bath? Can they just hose 'em down in a field and blowdry them?

2 MINUTE

Who here /switchingtoboeing/

>>11759583
They float at least for some time. The shape probably plays a role. But saltwater is bad because of corrosion

>>11759603
wouldn't it's shape get distorted hitting the water instead of the net?

WTF, I'm a Boeing Bro now. Go SLS!

1 min

>>11759603
They have been reusing floated halves so it's not a death sentence but I'm pretty sure it's not good for them so probably more extensive refurbishment than just catching them

30 sec

go for launch

t-00:00:30

>>11759613

nice blinkenlights on the left there

>riot streams and 2 launches into space in 1 week
what a wild ride

LIFTOFF!!

LIFT OFF

WEEEEEEEEEEEEEEEEE

There it goes lads

>>11759624
YAY

>>11759624
Based

WOOSH

them starlink stacks are fat, man F9 is slow on the takeoff

Fly rocket!

>>11759611
I mean they're on parachutes, they can't be going that fast at spashdown.

Soooo ready for landing #5

Q

>>11759611
They hit the water pretty gently bc of the parachutes.

MAX Q!!

thicc clouds

>>11759624
based launch cat poster

haha rocket go weeeeeeeeeeee

WHAT IS MECO?

can't see shit capt'n

>>11759649
Main Engine Cut Off

>>11759640
on this same rocket? that's insane

>>11759649
Miku is a cute waifu

>>11759649
Main Engine Cut Ooff

i was on the riot streams but nothing is happening so i'm here now.

damn thats fucking slick

>>11759649
BABY DON'T BURN ME
DON'T BURN ME
NO MORE

drinking tea and watching a routine rocket launch right now, this timeline can be comfy sometimes

>>11759485
So is spacex .

>>11759649
not as funny without the implied heavy texan accent

>>11759654
>>11759657
turning off an engine is a very bad idea

FAIRINGS IN 30

Oh that's bright

FAIRINGS FREE, MAY THEY GLIDE HOME

oh damn they are recovering fairings now? when did they start doing that?

>>11759649
missed that live, anyone got a link?

have now entered the blue danube phase of flight for S1

N O M I N A L

>>11759649
my enormous cock orgasms

>>11759663
It all feels so boring now...dunno if that's a good thing or not.

>>11759666
not when you're in suborbit

>MECO
>speed dips
>first stage hangs, drops, drop, drops
>SECOND ENGINE BLASTS AND BACK TO ACCELERATING
this will always be amazing to watch

DONT BLOW UP AHHHHHHHHHHHHHHHHHHH

>>11759674
https://www.youtube.com/watch?v=y4xBFHjkUvw

>>11759673
Long time ago, parachute accuracy sucks tho so they haven't had much luck

>>11759666
Worse to let it run out of fuel and explode.

>>11759683
no, the "what is meco" line

NOMINAL

>>11759684
o ok thats too bad. thanks anon

>>11759673
oh man, like two years ago. First net was too small, so they made it bigger. Then they made a 2nd boat for the 2nd fairing. Then they re-named them from the bad-boat-juju Male names and finally caught one. It's hard as shit, apparently. They've reused a couple fairing halves so far

>>11759685
but that looks cool

>>11759683
He obviously meant the texan asking that to the astronauts just after they boarded the ISS

>>11759506
yeah eventually i'll buy into it, right now i don't have the capital. I'm just trying to buy some things that i know are going to grow and just hold them for awhile.

first landing attempt on Just Read the Instructions

>>11759587
What's the point of clamshell fairings on a non-recoverable stage?

>>11759691
>>11759686
o ok sory

>>11759693
(on the east coast)

>>11759689
how do they catch it though? is there a way to steer the returning fairings somehow?

>>11759693
Who comes up with these names

stupid question here, but I live on west coast, no way i can see the rocket on the eastern horizon right?

i went outside to look but didnt see shit, also its sunny as fuck out over here still

>>11759694
oh yeah, that's why

thanks dude I forgot

>>11759694
to save money

ENTRY BURN

>>11759701
They are based on an scifi book series ships

SPARKS

WARP SPEED ON S1

UH OH

>>11759702
No, it's launching east from Florida.

>>11759702
I think there is pretty big clouds in the way

Are we gonna land her boys??

>>11759702
No way, they launch from the east and fly east

>>11759710
>>11759709
>>11759708

OH YEAH BOYYYYY

FEED DIDN'T CUT OUT

>it landed
We did it reddit!

THEY LANDED IT

Its' down!

here's our boi

LANDED

THE ABSOLUTE MADMAN DID IT

Man that's bright.

NICE LANDING BOI

On the dot! 5th time!

LANDING FIFTH TIME

EZ

Get's me every time

Good landing, no cutoff

sicc

That's 5 Gentlemen, Go for 6

fucking based

>no connection loss
wtf

>>11759701
They are named after sentient starships from the Culture series of books.

>>11759726
Shit turned into daytime, absolute kino

NOOOO CUUUUUT OOOOOOOFFFFFFFF

HE CANT KEEP GETTING AWAY WITH IT

shame that they didn't have the uninterrupted landing to shut up those morons regarding Demo-2

gg B1049

>First F9 to get to the 5th landing
Nice

sometimes you burgers are alright

HOLY FUCK HOW DOES SPACEX HAVE THE HOTTEST GIRLS WHO ACTUALLY KNOW WHAT THEY'RE TALKING ABOUT

>>11759723
>>11759724
>>11759729
>>11759732
>>11759733
thanks guys, I missed it

IT'S REAL

>>11759748
Blue Origin has similar sounding girl. They're trying to copy SpaceX lmao.

>>11759739
I think JRTI has upgraded comms hardware.

>>11759751
oh ye its real alright

imagine working for Boeing right now. i'd honestly just get in the bath and open my wrists, it's more honorable at this point

IT DIDN'T CUT OUT HOLY SHIT

smooth landing, smooth video feed, godamn

>>11759749

>>11759755
sniper-drones on the lookout for boeing jammers

>>11759754
blue origin uses imperial units for their on-screen data so they are instantly trash-tier webcast

Gets me every fucking time

Hai seiifuuu!

>>11759762
LEL BOEING JAMMING DRONES

night launches are so kino

BOEING AGAIN ON SUICIDE WATCH

That spacex girl is gay?
I'm making the ding-dong diddly switch to boeing

>>11759766
>blue origin uses imperial units
holy shit do they really??
that's laughable

PR SPIEL

PR SPIEL

a few more landings, it will be completely black and setting cars on fire

Stand by for astronomers seething

>>11759775
They only jam themselves and crash because of a program error

They showed the pole deploying

What was this light?

PAYLOAD DEPLOY DIDN'T CUT OUT EITHER
2 FOR 2

>>11759780
thats even hotter

And we're away!

tf is that flying passed the rocket?
condensation?

rods spotted

Nice desu~

No cut out on deploy, woot!

>>11759791
Don't worry about it

beautiful

where is my fairing catch >:(

>>11759795
Aliens

>>11759800
Fucking Ayy Lmaos

>>11759803
dammit not again

that was a comfy broadcast, no fucking around, just a job well done

>>11759791
ayys havin a peek. they're probably happy that they're not nukes

>>11759802
10 year anniversary for SpaceX tomorrow since first launch.

Is there a way to tell where the satellites will be in the next couple of hours/days? I want to keep an eye out for them.

>NOT A SINGLE CUT OFF

>>11759442
This. Fuck the night sky if my kids, and hopefully me, can one day go to space.

>>11759791
A mouse in space

>>11759766
>blue origin uses imperial units for their on-screen data

>>11759546
eat crow, faggot

>>11759812
https://www.satflare.com/track.asp?q=StarLinkLaunch

And that, gentlemen, is how we do it.

>>11759813
Technically on-board cam for Stage 1 cut off.

Thanks for watching lads
Next F9 launch is...
...
Starlink-L8! More Starlink. Thread will be up before it, as always.

>>11759705
How, bitch

How pricey will it be though?
I'm a poorfag who only affords $15/month for mobile service.

>>11759821
>>11759812
I like https://james.darpinian.com/satellites/?special=starlink

>>11759809
this, glad I tuned in at t-4, night launch is so comfy

>>11759827
Not for you. Its likely gonna be ~$60/M-$90 for 100 Mbps or so. That would be an absolute godsend with sub 30 ms latency right now for 40% of the rural population of US.

Jesus how do people still shit on SpaceX at this point. They keep WINNING!

>>11759812
https://findstarlink.com/

>>11759834
Elon Musk is a winner. He's done so many great things at this moment, the only people who shit on him are retarded fucks that should not be getting any attention. The seethers have contributed nothing to the world and are deadweight.

>>11759834
People always shit on the winners

Think I just saw them deploy over the UK, two little dots very close together, one the main body and the other the satellite bundle

>>11759812
https://findstarlink.com
https://www.heavens-above.com

>SpaceX's secret exposed!

>SpaceX's secret exposed!

>SpaceX's secret exposed!

>SpaceX's secret exposed!

>SpaceX's secret exposed!

>>11759834
They can't lose in a game where they are the only player, can they?

>>11759834
because elon man bad

>>11759818
not many big ice chunks this time which was interesting

>>11759802
Fairings won't make it back down until T+40 minutes, so about 10:05 PM EST.

>>11759839
Historically This.

how could I get internet from the starlink project?

>>11759834
>Mars Man Bad

>>11759847
ya but they wont stream it

>>11759854
buy user terminal, plug into wall outlet, plug into ethernet switch, place outside, pay SpaceX subscription fee

>post yfw they catch both fairings making it a 100% flawless mission

>>11759867
>Elon reveals that they managed to recover the 2nd stage as a test

>>11759791
Fuckig Ayys taking a closer look BAKA I'm jealous.

>>11759791
Swamp gas.

>>11759869
>they recovered the latches/tubes that held the stack in place too

holy shit the madmen, their commitment to reusability is taken to the extreme

>>11759841
you probably did, lots of reports coming in. random twitter pic

>>11759869
I would laugh, but then I would be worried about Starship.

When I say BOEING you stay BTFO.

BOEING

>>11759702
No. You can see it from North Carolina but that's about the limit, and they're launching towards them instead of away.

>>11759841
>>11759876
Yes that is the SpaceX launch confirmed, that is the acceptable conclusion and these lights do not need to be investigated further.

>>11759883
AAAAAAAAAAAAAAA

Gonna be crowded at the rocket processing port back at the cape. Unless they can pack up B1058 back in the HIF before B1049 arrives.

>>11759883
i'll say it when they recover the fairing as well, check their twitter in 10 mins

>>11759821
>>11759829
>>11759837
>>11759841
Thanks anons.

>>11759766
imagine using anything but m/s for your speed and anything but m for your altitude (switching to km when it gets to big)

>>11759799
>>11759797
I get the feeling that they could easily hold on to those rods somehow and not litter LEO with debris

Should I host an instance for the next launch of starlink?
Y/N?

>>11759891
they managed to get the legs up without taking them off after DM-2

>>11759897
gib suit model please

>>11759844
????
That's not how this game works.

>>11759876
Nice, pretty certain it was Starlink.
Gonna get my binocs out now and have a peep at jupiter and its moons lol

>>11759894
I prefer megameters myself

>>11759867

>>11759880
No reason to be, they'd still need Starship for Mars 100% definitely.

>>11759895
according to Jonnyboy McDowell they don't last too long down there in LEO

That was fun. Back to figuring out orbital mechanics in KSP

>>11759844
they absolutely can
see: Boeing

>>11759919
only 2 bodies can affect you, no n body physics in ksp, simplified

>>11759889
don't be retard

>>11759919
Have fun, the trial and error pays off

We should hear about fairing recovery shortly

>>11759914
naturally, when the number is too big in km you swap to Mm, but that doesn't start being useful until you're out by the moon
>>11759918
we have the info and the graphs, it takes a month or two

>>11759926

>>11759897
implying any of us can afford a headset

>>11759791
Venus

rip fairings I suppose

>>11759784
S O O T E D

FAIRINGS DEAD CHECK TWITTER
>FAIRINGS DEAD CHECK TWITTER
FAIRINGS DEAD CHECK TWITTER
>FAIRINGS DEAD CHECK TWITTER
FAIRINGS DEAD CHECK TWITTER
>FAIRINGS DEAD CHECK TWITTER
FAIRINGS DEAD CHECK TWITTER
>FAIRINGS DEAD CHECK TWITTER
FAIRINGS DEAD CHECK TWITTER
>FAIRINGS DEAD CHECK TWITTER
FAIRINGS DEAD CHECK TWITTER
>FAIRINGS DEAD CHECK TWITTER

>>11759985
don't spook me like that

>>11759984
it's SCORCHED

>>11759784
Sheeeeit.

>>11759754
>blue origin
have they even launched anything yet

>>11759593
Isn't it because the droneship vibrates and shakes when the rockets blast hits the deck, followed by the mass of the stage settling onto it?

>>11759679
With rockets, boring is good.

>>11759784
at least this BTFO's the retards who think it was faked on Demo 2

>>11759766
The eternal butthurt of the european.

>>11760008
No it doesn't, they'll simply refuse to believe you.
>"Oh NOW it goes smoothly when there aren't people on board, huh?"

>>11760011
there weren't people on board the Demo 2 booster on landing either baaaaka

>>11759914
Light-second is 299.792458 Mm

>>11760013
You know that, and I know that, but...

>>11759993
That little flying dildo has gone up and down a few times.

>iridium flare shielding
Clutch EPA write off

>>11759926
ARE YOU SURE ABOUT THAT?

>>11760029
we SHOULD

>>11760030
SHOULD WE OR SHOULD WE NOT?

#FAIRINGSMATTER

>>11759188

This is why ULA, Boeing, and others are struggling with the sheer volume of capability SpaceX brings to the table. Sure, it may take 1 month overall for SpaceX to potentially refurbish an F9 for a follow up launch. But that's a fraction of the <30M they'd pay for building a new booster, and the fact that this very same booster can fly up to 5 times (current rate till failure) means they're basically saving up to $150M per F9 built long-term. Each recovered F9 core has a significant actionable potential for Starlink: 300 satellites total to orbit or up to 78,000kg (across 5 missions) to LEO in ride sharing capability.

There's not a single launcher on the market that can offer that kind of a capability for the prices that SpaceX can do. Just think about it. NASA wants to deploy 5 parts for a space station in LEO that's a successor to the ISS (for example) on this rocket, and can launch up to 5 15,000kg (75,000kg cumulative) parts to LEO on the same rocket and pay ~200M for all of it or pay 2.5x that for an extra 23,000kg to orbit on a single SLS rocket (93T to LEO)--but without the flexibility of launching 5 modules with the same payload fairing.

The F9 booster is absolute marvel of a rocket and nothing short of phenomenal when it comes to continued access to space at low cost.

Oh yeah, we're now on June 4th. Ten years ago, today, the first F9 launched. Today is SpaceX's 10 year anniversary of the Falcon 9.

For today, they've launched astronauts to the ISS, recovered the NASA WORM booster, launched Starlink Mission 8 on a booster that flew 4 times before, and recovered said 5th mission booster successfully. That's a pretty big gift to give yourself for your 10th anniversary.

>>11759790
Maybe it's just me, but the deploy system seemed different this time

>>11760633
they actually showed it this time, it was probably the same
somebody go back and screenshot the views from the second stage of the payload stack

>>11760687
Yeah, I looked at the previous missions, and it definitely looks the same. Really wonder why they showed it this time

>>11759790
Yeah, because they were actually in sat coverage when it happened this time.

Saw the glow of stage 1 reentry burn. Too cloudy for anything else.

How far do they plan to push the falcons again? They should just keep launching it with a big "Boing btfo" decal printed on the side
>>11759249
Dude pls go back. May I interest you in a 0.999 == 1 thread?

>>11760735
Oneweb is bankrupt