SES-9 Technical Webcast

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This is the SES-9 Technical Webcast which will only include shots of the rocket and our countdown net audio. There will be long periods of silence. We will no longer be including John Insprucker's status updates per this Reddit thread: www.reddit.com/r/spacex/comments/48ha0l/spacex_technical_webcast_questions/
SpaceX’s Falcon 9 rocket will deliver SES-9, a commercial communications satellite for SES, to a Geostationary Transfer Orbit (GTO). SES is a world-leading satellite operator that provides satellite-enabled communications services to broadcasters, Internet service providers, mobile and fixed network operators, and business and governmental organizations worldwide using its fleet of more than 50 geostationary satellites. SpaceX is targeting an evening launch of SES-9 from Space Launch Complex 40 at Cape Canaveral Air Force Station, Fla. The approximately 90-minute launch window opens on March 4 at 11:35 pm UTC. The satellite will be deployed approximately 31 minutes after liftoff.

Science & Technology

Published on


Mar 5, 2016




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Comments 153
We Live In A SciFi Experiment
at 37 min there is something raining down and sticking to a rocket going 26000 km\h how is that possible? what the heck is it?
Cruusher 3 years ago
UFO at 19.19 ....?
Mihailo Jovanović
Mihailo Jovanović 3 years ago
Could you publish a video of Dragon processing, mating with Falcon and rollout? Not a short one, but a bit more detailed one. I've never seen that part, and I bet it is as interesting as the launch itself. :-) Thanks
Sergi Martín
Sergi Martín 3 years ago
Did it just cross the atlantic in 20 minutes!
Bighappy 3 years ago
as it is nice listening to them. they tend to repeat WAY to much or just ramble on. i am glad they did it this way. much better.
vic plichota
vic plichota 3 years ago
An accelerometer readout would be way cool...
Albert 3 years ago
Alexandre Souza
Alexandre Souza 3 years ago
Congratulations for making science!!!
Pol Saez
Pol Saez 3 years ago
Im a big fan of SpaceX but im feeling a bit dissapointed by the wy they managed their information.
Joseph Seremak
Joseph Seremak 3 years ago
Did you notice the curvature of the earth?
BruffyWuffy 3 years ago
What a great display of high performance rocketry. Well done Spacex!!
Phil Hunter
Phil Hunter 3 years ago
I congratulate SpaceX on all their success, but I can,t help but sense a bit of manipulation in their delivery of information. This is the second time the picture has cut out just before first stage touchdown. Then we don,t hear anything for the rest of the webcast. You mean they have no com with the landing barge for over and hour? BULL. SpaceX wants the happy news to be the successful launch and deployment of functioning payload, not another failure of an experimental landing system.
Appable 3 years ago
+Phil Hunter Oh, well after that I'm sure they figured it out. They aren't showing the landing obviously.
Phil Hunter
Phil Hunter 3 years ago
I totally believe that. 100%. No boats, planes, helicopters, drones. Even after 10 hours.
Appable 3 years ago
@Phil Hunter Nobody watches the barge. The assumption is that the rocket is going to come down somewhere within a 10-15 mile radius of the barge, but remember that the they weren't even sure if it would survive reentry. So they stay really far away from the rocket.
Phil Hunter
Phil Hunter 3 years ago
I'm not asking for HD video, or even video. I'm sure someone's got an eye on that barge and knows what happened, and I'm equally sure there's some kind of com, even if it's old fashioned radio.
Appable 3 years ago
+Phil Hunter No, it's actually really difficult to get satellite uplink. Interruption in service can often mean someone has to go there and manually reconnect with a satellite, it's very difficult to do autonomously.
anothermoth 3 years ago
What's going on with the fire licking out sideways between the first stage nozzles from about 10:45 ? Is that just unburnt exhaust recirculating around the nozzles as the airflow patterns change, or was there some kind of fuel leak?
Appable 3 years ago
+anothermoth The gas generator exhaust does that. Gas generator is like a mini rocket engine that sends exhaust through a turbine to pump fuel, then out in a small exhaust off the side.
CmdrGendoIkari 3 years ago
*Elon* this is my question; Does the barge platform communicate its motions in real time to the 1st stage guidance computer? I'm starting to think that if you guys haven't tried to do something along those lines, that is probably the thing to do. The 1st stage needs to be able to anticipate the rocking motions of the platform just before touch down, or else landing on it may always be hit and miss. I think if the platform could just tell the rocket exactly what is happening with its motions, then the rocket could calculate the exact frequency and amplitude of the ocean waves at that moment in order to adjust it's landing trajectory. Maybe this is already a part of the system, but couldn't find anything specific about it last time you guys tried this barge landing routine.
Appable 3 years ago
@CmdrGendoIkari It's carbon fiber and aluminum honeycomb, so the landing legs should be really good at flexing and get very little stress from impact if they don't break (so tilt shouldn't matter much). It'd technically be optimal but I think the better plan would be allow them to flex naturally and eventually make a platform that doesn't move much at all so that they all land roughly at the same time.
Appable 3 years ago
@CmdrGendoIkari I can say for certain the barge has never been the cause of a landing failure, and it's likely that the triple engine burn and a slow startup time meant a crash. Gibson, the best way would be a semisubmersible platform. It still moves, but not all that much.
Rich Epi ES
Rich Epi ES 3 years ago
I'm trying to imagine controlling a rocket landing to compensate for rough seas. Could thrusters accomplish that?
Appable 3 years ago
+CmdrGendoIkari No it does not and no that has never been a problem with barge landing. Barge landing has always failed but for other reasons than the actual barge motion.
Rich Epi ES
Rich Epi ES 3 years ago
+CmdrGendoIkari As mentioned in an earlier comment, I think it was more a function of fuel, or the lack there of. That's probably why they didn't sound so hopeful about pulling this landing off.
rickyzmkuo 3 years ago
i wonder how many of those launch control people are experienced former NASA employee.
chulex677 3 years ago
+rickyzmkuo i think there was actually a comment from NASA that Private Sector were getting all the new engineers or something but well, they cant compete with them, theres almost a 40% difference in salary, insurance and they even let you put your name in Big letters on any new tech or papers that you publish where NASA actually puts your name at the end in Arial Size 8 because NASA always get the Recognition as an entity nor the employee per se.
Volodymyr Zubariev
Volodymyr Zubariev 3 years ago
where the sound from while 2nd stage's engine is showing. do they have also mic onboard?
Appable 3 years ago
+Voldemar Zubariev That's just wind noise, I don't think they ever changed the mic from launch pad mic.
Volodymyr Zubariev
Volodymyr Zubariev 3 years ago
+ATschTheCube can't agree with you more. the question is: do they transmit vibrations of the stage, or sound of wind from launch site, for example
WeNeedMoreFarads 3 years ago
It's in Space, there is no sound. I think they are just transmitting the Vibrations as sound. If they can do video, sound is easy
Vlad Zemlyanin
Vlad Zemlyanin 3 years ago
Шокирующе подробно и ужасающе интересно. Нам в СССР никогда так подробно не показывали. Я сидел с калькулятором и непрерывно вычислял скорость полета в км/сек и сравнивал с высотой. Многое в моих представлениях о взлете ракеты поменялось. Оказывается во многом происходит совсем не так, как я думал раньше.....
hawdodo waffa
hawdodo waffa 3 years ago
connor harkness
connor harkness 3 years ago
woo, after many attempts, finally a successful launch of the mission. good job +spaceX and I look forward to seeing more launches from you guys
Kirbae 3 years ago
"We used to look up at the sky and wonder at our place in the stars. Now we just look down, and worry about our place in the dirt. We must reach far beyond our own lifespans. We must think not as individuals but as a species. We're not meant to save the world. We're meant to leave it. This world's a treasure, but it's been telling us to leave for a while now." ーinterstellar,2014
iCaptawesome 3 years ago
Was the landing a success?
BeamPolaris 3 years ago
+iCaptawesome no
Дмитрий Ветров
François Canguilhem
I'm glad spaceX also postes a technical webcast. Can't really stand all the screaming and stupid comments...
tesla guy
tesla guy Year ago
Holy crap, do not get me started on the screaming... It REALLY gets on my nerves when I'm trying to enjoy a rocket launch with David Bowie playing in the background!
JRoque250 3 years ago
+Electro phobia Agreed! Not much fun having the Facebook crowd cheering for American Idol on the other channel. Very thankful to SpaceX to also think of us no-fun, barely carbon-based nerd lifeforms.
Zeph3r Flash
Zeph3r Flash 3 years ago
+Electro phobia Amen to that! I hate bobble-heads.
JanitorIsBack 3 years ago
much better than listening you those other people
Gin-chan's Odd Jobs。万事屋銀ちゃん
I actually used this to run the simulation in my Orbiter Sim :P
We Live In A SciFi Experiment
hint: it's soot and ash from a test engine inside a warehouse
mark Draco
mark Draco 3 years ago
+JWA I guess they couldn't answer your question without being found out
We Live In A SciFi Experiment
+JanitorIsBack at 37 min there is something raining down and sticking to a rocket going 26000 km\h how is that possible? what the heck is it?
altern8energy 3 years ago
they should just stop with the landing of the 1st stage vertically and use a rapid flotational airbag system that keeps the 1st stage very buoyant for the time it takes a retrieval team to pick it up out of the ocean.. the solid rocket boosters the shuttle used were always retrieved after they plunged into the ocean with parachutes and reused in such a manner.. even if you have a successful vertical landing of the 1st stage, you still have to have lay the stage down in a horizontal position to transport it back to base to be disassembled and reworked for the next launch.. of course this whole chemical rocket method of payload delivery is rather old when there's many that work in the deep black projects of the DoD that have verified that we do have electrogravitic propulsion systems and the spacecraft that use them to travel to the stars.. why do you think 8.3 trillion has been claimed to be unaccounted for by the Pentagon..
CoARHoneyBadger 3 years ago
+altern8energy lol! you really are a loon... . I have worked in the space industry for 9 years and my job specifically relates to monitoring/studying the effects of the space environment (radiation included) on various materials. Yes, the moon landings definitely happened. Yes, the radiation from the van allen belts (and the rest of space... not just the radiation contained within the Earths magnetic field) would kill a person who was exposed without any type of shielding, but it would require months of exposure and it would be a slow and painful death as their body slowly tore itself apart.
altern8energy 3 years ago
+CoARHoneyBadger I've gone off the deep end?!? Then I guess Ben Rich, formerly head honcho of Lockheed Skunkworks in the 90's was just talking out of his ass about having star travel capability with exotic technology. I don't have proof that the technology exists, but I do think it's probably been developed and is in use... As for the moon landings.. I highly doubt they happened.. Something recently with NASA talking about their Orion spacecraft needing to be tested for filtering out the deadly radiation from the Van Allen Belts that surround the planet. But in 1969-1973, somehow NASA managed to go to the moon and back but never be affected by the deadly radiation when you get past the magnetic shielding of the planet...
CoARHoneyBadger 3 years ago
+altern8energy Oh sorry, I missed the part where you launched yourself off the fucking deep end and claimed that the government has some super secret propulsion system that magically defies the laws of physics... Landing on other planets with chemical rockets... Please tell me how we got to the moon and back several times, and how we delivered robots to Mars on several different launches. Chemical rockets? I thought so. The only reason SpaceX hasn't put anyone into orbit is because they are a US company and the US Government hasn't certified them to do so yet. They are obviously capable. They have successfully sent supplies to the ISS and have successfully placed objects in several different orbital regimes. As far as international space programs go, if SpaceX were a country, it would be in the top 10 most successful space-faring nations.
John Bayly
John Bayly 3 years ago
+altern8energy The SRBs splashed down at about 50 mph, and were basically an empty steel tube which were then rebuilt at a cost which was similar to building a new one from scratch. How do you think the precision engineered [and hot] motors are going to fare when they come in contact with salt water? How do you think the thin walled empty stage is going to keep its structure on impact?
altern8energy 3 years ago
+CoARHoneyBadger you obviously didn't catch the part where I said, we've already been to the stars, just as Ben Rich of Lockheed Skunkworks said in the 90's. And as far as landing on other planets with chemical rockets... That's only going to happen in the movies.. Elon Musk is deluding his congregation of worshipers if he thinks he's going to be putting a man on Mars in 10 years.. He's yet to put a man in orbit or carried one to the ISS..
Adam Adwin
Adam Adwin 3 years ago
и в чем смысл этих полётов и затрат ресурса мы давно знаем что планета круглая и она не одна лучше запустили в производство роботов чтоб людям облегчить жизнь тупые недоумки, да, я знаю что надо делать а не вы !!! :-))
Sven Hoek
Sven Hoek 3 years ago
Forget the barge. Land it on soil.
MaxQ 3 years ago
So cool!
Gustavo Zeni
Gustavo Zeni 3 years ago
GO 19:05
Aerohk 3 years ago
Launch at 9:58, landing 18:20
LunnarisLP 3 years ago
@Chris Daramouskas Giannikou Was talking about Rockets in general, I know the F9 uses RP, but they still use Liquid Oxigen.
Chris Daramouskas Giannikou
@LunnarisLP Just fyi, there is no hydrogen, F9's propellant is RP-1.
LunnarisLP 3 years ago
so they launch a real rocket to make a movie for youtube xD.. Legit. It's leftover ice btw, it is there because the tanks contain liquid oxigen and hydrogen which has a lower temperature than water freezing temperature. Maybe try reading a couple off books in your free time instead of exposing frauds..
We Live In A SciFi Experiment
I appreciate that. I use to believe but after observing the permed hair always oriented in the same direction on the iss and the obvious harnesses the astronots wear under their clothes the cgi glitches during the live broadcast the air bubbles the guide wires etc at some point it all becomes cartoonish and impossible to believe. I would love all this to be true but I have to live in reality and expose all these frauds.
Cameron Byers
Cameron Byers 3 years ago
Well, I can't change what you believe is real or not, so I'm not going to argue with you.
Matthew Q
Matthew Q 3 years ago
Satellite in orbit, pays the bills. Great deployment again SpaceX. Try, try again on 1st stage!
Simon Christopher
Simon Christopher 3 years ago
Put a robot on the first stage and let it land it.
Vlad Shcherbakov
Vlad Shcherbakov 3 years ago
+Simon Christopher i think they already do that :)
George Ojeda
George Ojeda 3 years ago
I am speculating here, but based on the feed off the recovery barge - I get the feeling they didn't stick the stage 1 landing. It didn't look anywhere near the center of landing platform to me.
Zeph3r Flash
Zeph3r Flash 3 years ago
Well SpaceX did say before launch: "Given this mission’s unique GTO profile, a successful landing is not expected." That is because this is the heaviest payload SpaceX has ever attempted to deliver to a geostationary orbit, so there was barely any fuel left for landing purposes. The next mission is cargo delivery to the ISS, so there will be more fuel available for landing.
Tomasz Dzieduszynski
+George Ojeda Musk's twitter: "Rocket landed hard on the droneship. Didn't expect this one to work (v hot reentry), but next flight has a good chance."
Skyler Porras
Skyler Porras 3 years ago
I cant imagine that a barge wouldnt move when landing such a large and vertical object on it. Landing seems to work great on land, which is good, but I dont see the point of failing over and over at sea. Do they obtain some kind of data from it? Is it just for safety? There is no way that thing could stay up even if it landed perfectly. Water moves, the rocket needs to be restrained. Im sure they know this so why keep blowing up their rockets? I have no idea why they keep doing the barge thing. Any idea?
Appable 3 years ago
@Electro Fisher Not much from the technical side of SpaceX. News comes out, certainly would on NASAspaceflight and the SpaceX subreddit, but very rarely do we get new technical details. It's somewhat of data gathering (hard to know when a rocket will burn up until you try it) and seeing how little fuel you can use while still having a reliable process. In this case they didn't expect it to work, and in the end it didn't, but they were also pleasantly surprised when DSCOVR seemed completely fine after a high-stress reentry. So it's a lot of testing.
Skyler Porras
Skyler Porras 3 years ago
Thanks guys! I love getting more info. I really don't know much but asking these questions helps me understand. Okay so it's mostly a fuel problem at the moment? Im guessing they are at their physical limits and are experimenting with different configurations (innovating) until they can find something reliable? Something like you said with gathering data on experimental suicide burns to figure optimal timing? Originally I was under the impression that any significant tilt of that barge would turn the rocket into a powerful lever and snap its struts. That last landing you talk about I thought the struts seemed to snap. The landing was almost perfect. I think it may have been that one of the struts didn't engage or lock completely, like you said, due to lack of hydraulic fluid or something rather than the strut snapping. That is probably where I got the misconception of the barge/water being the issue. (also that I don't think they have failed on land yet and only on the barge, but that's too small of a sample size.) P.S. I look at most of SpaceX social media, but is there a source of more technical information that SpaceX releases to the public that anyone knows of?
Shaun M
Shaun M 3 years ago
+Electro Fisher The stability/tilt of the barge isn't as big a factor at this point. They've largely solved that. The challenge, especially on a high energy flight like this one, is that they pretty much have to do what is called a 'suicide burn' - which is to wait until the last possible moment to restart the engine for landing and get it slowed down with little margin for correction or adjustments because of the low remaining fuel. And because it's coming down so fast and from higher up, it's just more challenging to control a precise location anyway. They'll get there eventually, but it's a big engineering challenge, hence why even none of the traditional big aerospace/gov'ts have achieved this before. BTW.. the last barge landing worked, but one of the locking pins in one of the leg didn't lock in place and it fell over.
Appable 3 years ago
+Electro Fisher This is already really large. Someone calculated that based on known masses the stage would tip over if the barge pitched at over 20 degrees, which is really steep (like you should be worried about the barge at that point, not the rocket). Regardless, the barge has never caused a failure. Every failure so far would have happened regardless of where it landed.
Skyler Porras
Skyler Porras 3 years ago
Thanks! I appreciate the info. I didn't realize that making it back to land was an issue. I wonder how they will eventually solve the barge problem, engineering wise. I imagine a larger more stable surface might do. Like something the size of an aircraft carrier... a space craft carrier. I have no idea, but it excites me!
Matthew Ferrie
Matthew Ferrie 3 years ago
Any word on the first stage?
Appable 3 years ago
+Dan Frederiksen They might have the video now (a day or so later). But they wouldn't have it immediately. The problem is rocket exhaust is really difficult to maintain a satellite uplink through, and as soon as you lose a satellite uplink it takes a lot more work to get it back up (usually involves actually going to the site to reconnect, can't really do it automatically).
redmonkeyass26 3 years ago
@Dan Frederiksen 1 astronaut, Edgar mitchell said he believed in aliens. When i see some actual good quality video or picture from a reliable source i will admit they exist. Until then, you might as well believe in angels, theres just as much evidence of them as aliens.
mice and dice
mice and dice 3 years ago
maxxtubing 3 years ago
9:15 for start of it.
VDTHD 3 years ago
first stage doesn't look good
Keef Wivaneff
Keef Wivaneff 3 years ago
Never mind the bouncing wocket. Ewon's cheques are bouncing already. Suppliers demanding COD.
Keef Wivaneff
Keef Wivaneff 3 years ago
Seen any webounding wockets then?
G. Palmer
G. Palmer 3 years ago
+Keef Wivaneff you should get out of your moms basement once in a while. Go out in the daylight and see something happen live with your own 2 eyes.
Keef Wivaneff
Keef Wivaneff 3 years ago
So you say. Where's YOUR video?
aptriple 3 years ago
+Keef Wivaneff I was at Cape Canaveral for the Spacex landing in December. I was less than 4 miles away and I had a great view of the Launch and landing. I saw the Rocket go up and saw the burns as the stage 1 returned to Cape Canaveral. I saw it with my own eyes, not from a TV station, and not on the Spacex Web site. I don't believe it was a hoax.
Keef Wivaneff
Keef Wivaneff 3 years ago
I don't like con-artists and swindlers. Simple really.
Chris R
Chris R 3 years ago
Next videos
SES-9 Full Webcast
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