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2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

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10168221 No.10168221 [Reply] [Original]

FIRST THIRD FLIGHT OF AN ORBITAL-CLASS BOOSTER AND A WHOLE LOTTA SMOL SATELLITES edition

WHEN: Wednesday November 28, 18:31:47 UTC / 1:31:47 PM EST / 10:31:47 AM PST; launch window is 30 minutes long
STREAM: https://www.spacex.com/webcast
Probability of weather delay: tbp
Backup launch window: tbp

~ Primary Mission ~
Launch site: SLC-4E, Vandenberg Air Force Base, California (West Coast)
Booster & previous flights: B1046.3; [Bangabandhu-1, May 2018, LC-39A] [Merah Putih, August 2018, SLC-40]
Payload: “SSO-A”; 64+ satellites, organized by Spaceflight Industries
Payload mass & destination orbit: ~3000kg; Sun-synchronous 575 km x 575 km ~98º
SpaceX press kit: tbp
Customer press kit: http://spaceflight.com/wp-content/uploads/2018/11/Spaceflight_SSO-A_Presskit.zip
Payload information:
>http://spaceflight.com/sso-a/
>https://directory.eoportal.org/web/eoportal/satellite-missions/content/-/article/sso-a
>Relatively accurate list of payloads: https://forum.nasaspaceflight.com/index.php?topic=38551.msg1839535#msg1839535
>Stack assembly video: https://www.youtube.com/watch?v=lp-5iJONtzs

~ Secondary Missions ~
First stage landing: YES, on droneship Just Read the Instructions
Fairing catch: No

Stay in the loop:
https://twitter.com/SpaceX
https://twitter.com/elonmusk
https://www.flickr.com/photos/spacex/
https://www.spacex.com

https://twitter.com/SpaceflightInc
http://spaceflight.com

Want to view the launch?
>drive to the Hawk's Nest on Azalea Lane off of Highway 1 just a half mile south of Vandenberg Air Force Base's main gate
>the Hawk's Nest gates will open on Wednesday at 9:00 a.m. PST and close at 10:15 a.m. PST

Stats:
This will be the 32nd landed first stage, the 18th re-fly of a 1st stage, and the 64th Falcon 9 launch. It is the 19th SpaceX launch of 2018.

>> No.10168233
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10168233

sticking this thread up earlier than normal since it's a pretty important launch. Three flights out of one booster, yo

>> No.10168336
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>> No.10168349
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>> No.10168372
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>> No.10168381
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>> No.10168613
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10168613

Plenty of cool payloads this time around, including a amateur radio repeater on Fox-1Cliff

>> No.10169022

Supposedly JRTI will be pretty close to shore for this launch?

>> No.10169163
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10169163

good luck barge-chan

>> No.10169441

CGI video of the deployment process
https://www.youtube.com/watch?v=Jc3hwfG8kPA

>> No.10169606

>>10168372
How pissed would the microsat customers be if the decoupling went awry and it collided with one of the sats?

>> No.10169634

>>10169606
not sure that would be possible due to the deployment timeline

>> No.10169700

36 hours to go. This thread better be popping in the morning

>> No.10169733
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>>10169441
>>10169634
Assuming this animation they released is accurate, it sure looks dicey.

>> No.10169739

>>10169733
>the urn sat smashes open
>cremated remains contaminate the sensors on half the cubesats

>> No.10169856

>>10169022
A couple dozen miles apparently...

>> No.10169926

Any guesses as to what the materials breakthrough on bfr actually is?
t.totally not from Grorious China

>> No.10169945

>>10169926
Hopefully something heatshield related, that has always been the sticking point for me as so far it has been a choice between PICA X which would not be remotely rapidly reusable, or some kind of ceramic tiling which would also limit reusability because of the necessary checks. Idk we will see I guess.

>> No.10170387

>>10169926
Maybe some sort of titanium reinforced carbon composite weave

>> No.10170390

>>10169926
He just liked a tweet linking this if it’s a hint idk https://m.phys.org/news/2018-11-strength-ductility-high-entropy-alloy-oxygen.html

>> No.10170455
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10170455

Wired article about the IOT sats on the mission

>> No.10170458

>>10170455
whoops forgot link https://www.wired.com/story/spacexs-next-launch-will-spark-a-space-internet-showdown/

>> No.10170502
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10170502

25 hours to go.

>> No.10170937

>>10170390
We metamaterials nao

>> No.10170976

>>10170390
If they are actually re-designing it for some new experimental lab material it's even more a pipe dream than I thought.

>> No.10171004

>>10170976
Yeah I know right when has anyone ever changed a design to take advantage of a new material.

>> No.10171022

Launch delayed due to weather, according to the 30th space wing Facebook

>> No.10171059

>>10171004
That's not a "new material", that's experimental lab-stuff that has little to do with practical applications. It's like "re-designing" a space elevator because of some new carbon nanotubes that has been experimented with somewhere.

>> No.10171071

>>10171022
New launch date is the 1st.

>> No.10171073

>>10171059
>little to do with practical applications

Yeah I can't see any possible applications for a high strength, highly ductile and temperature resistant material. Neither you nor I have any idea how hard it is to produce in bulk so how about you just wait and see instead of talking shit and acting like you know everything?

>> No.10171083

don't see why SpaceX would want to work with high entropies alloys. Elon probably liked it just because it's potentially useful for something else. Can't imagine that they're moving away from carbon fiber composites for the main structure.

>> No.10171108

>>10171073
Yeah right, wonder material no. 124491 in some lab will definetely work for this CGI rocket without funding.

>> No.10171114

>>10171108
Stay mad fag.

>> No.10171375

And here's the official delay tweet https://twitter.com/SpaceX/status/1067591952122531840

>> No.10172534

Backup dates are the 2nd-4th.

>> No.10172643

>launch delays because delta IV takes priority
HAHAH MUSKRATS BTFO SECONDRATE COMPANY FOREVER

>> No.10172742

>>10172643
>billion dollar NRO bird vs some university cubesats
HMMMMMMMM

>> No.10172873

only spaceX launch i care about at this point is the one januari when musk is going to roast some poor souls alive on top of his rocket.

>> No.10172984

>>10172873
Not gonna happen. But, if you do want kaboom, it’s been confirmed that the in flight abort test will include the complete destruction in flight of the 1st stage

>> No.10173011

>>10172984
when is that test and will there be a stream?

>> No.10173020

>>10173011
of course it will be streamed. It's happening in May

>> No.10173024

>>10173011
after they fly the demo 1 mission but before the demo 2 mission
>>10173020
is there a date now?

>> No.10173035
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>>10173024
Q2. People are thinking NET May, but maybe March? Depends on how DM-1 goes etc.

Here's the report that sums up how the test will play out. S1 won't have landing hardware (duh), S2 will not have a complete engine config (but most of the pluming), lots of interesting details

https://forum.nasaspaceflight.com/index.php?action=dlattach;topic=45279.0;attach=1528723;sess=0

>> No.10173123

>>10173035
>2.1.1 ABORT TEST OVERVIEW
>As part of SpaceX’s commercial crew certification process with NASA, SpaceX proposes to conduct an abort test. The abort test is currently scheduled for 2019. The abort test would involve observation, photography, and debris management associated with the breakup of the Falcon 9 first and second stages
wew lads

>> No.10173136

Dragon has a lot of fuel on it, huh
>Dragon would contain approximately 5,650 pounds of hypergolic propellant, including approximately 3,500 pounds of dinitrogen tetroxide (NTO) and 2,150 pounds of monomethylhydrazine (MMH). Dragon would contain approximately 2,400 pounds of residual propellant after the abort test.

>> No.10173219

wew lads
>At the point of breaking up, the stages would be carrying the following approximate fuel loads of LOX and RP-1:
>Stage 1 LOX: 631,300 pounds
>Stage 1 RP-1: 257,500 pounds
>Stage 2 LOX: 168,100 pounds
>Stage 2 RP-1: 65,000 pounds
>The extra LOX carried as ballast for the abort test would provide an environment that is oxidizer rich and would promote combustion of the remaining RP-1.
SpaceX planning on bringing the fireworks to this party

>> No.10173227

>>10173219
>promote combustion
that’s one way of phrasing it

>> No.10173235

>>10173219
Rule of thumb, 20% mass for TNT equivalent with LOX/RP1

>> No.10174115

with the CRS mission two days after this one now, spacex will break their time record for back to back launches

>> No.10174121

India is launching a PSLV with a HySIS satellite in a few minutes.

>> No.10175440

3 days to go.