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Rosetta comet landing – live stream
- svckr 12y agoHere's _the real_ live stream: https://xkcd.com/1446/ https://xkcd.com/1446/
- mikeyouse 12y agoESA lists 35min to lander separation, Randall lists 65.. I'll definitely keep both windows open, but it sure seems like the ESA site might be quicker on updates for live events!
- yoha 12y agohttp://xkcd1446.org/ http://xkcd1446.org/ Go back a few frames and notice that Randall's counter was in synch until T-50min when it suddenly rose to 75min.
- NotOscarWilde 12y agoI know that website is a useful tool in itself, but when I learned this is what Mark Karpeles is up to now, I felt bitter. I guess I still am not over the fact his company stole a non-trivial sum of my money. Please don't take it as a slur against this harmless site. It just... surprised me.
- ksmiley 12y agoCan you elaborate? What does Mark Karpeles have to do with xkcd?
- NotOscarWilde 12y agoMark Karpeles programmed the website xkcd1446.org: https://github.com/MagicalTux/xkcd1446 https://github.com/MagicalTux/xkcd1446
- zween 12y agoThe signal travels ~30min to earth. ESA's counter shows when it will actually happen and Randall's counter when we will get confirmation. http://blogs.esa.int/rosetta/2014/11/12/rosetta-and-philae-go-for-separation/ http://blogs.esa.int/rosetta/2014/11/12/rosetta-and-philae-g...
- Symmetry 12y agoIt really brings special relativity home to think that the ESA's counter is only valid from the reference frames we usually use. It's only when Randall's counter reaches zero that we can unambiguously say that the probe landed in the past.
- logicallee 12y ago>I'll definitely keep both windows open, but it sure seems like the ESA site might be quicker on updates for live events! This is so hilarious. For up to the minute information, it's a toss-up between the European Space Agency's live stream on the probe it's landing on a comet, and... a hand-drawn web comic about it.
- mikeyouse 12y agoThe absurdity of that statement became clear to me almost immediately after I typed it.. but then again, the XKCD updates ended up occurring exactly on schedule so maybe it wasn't so absurd after all!
- bcohen5055 12y agoDoes anyone know if Randal is "Live Animating" this event or does he just know enough about the landing procedure to draw it all out ahead of time?
- Pinckney 12y agoThe comic references the problems with the cold gas thrusters, so it is not all pre-drawn.
- Gravityloss 12y agoESA's PR is not very good. They have mostly talking heads while Randall Munroe actually provides a good overview on what's happening now and what's going to happen next. When humanity landed on Titan (which is a mind boggling achievement), the pictures couldn't be shown right away because they had to have some politician talking some platitudes first. NASA does it infinitely better.
- vixen99 12y agoNot only 'infinitely' but presumably a 'quantum leap' better?
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- kibibyte 12y agoI really quickly hacked together a script (https://github.com/DanGe42/xkcd-1446-fetcher https://github.com/DanGe42/xkcd-1446-fetcher) to fetch every frame starting from the current one so I wouldn't have to keep the page open all night. There's not much more to it than a few modifications I made to Randall's client-side script to make it compatible with Node.js and write to the file system instead. Hopefully it doesn't crash overnight on my server.
- Heliosmaster 12y agostrangely enough, does not work for me on chrome on osx :(
- Jhsto 12y agoYoga's submitted website[1] works fine. [1] http://xkcd1446.org/ http://xkcd1446.org/
- rocco 12y agolacks only of a counter in title tag that signals a page update. (like Twitter, Facebook ect.)
- frabcus 12y agoThe pins puncturing the cold-gas jet system on Philae have apparently failed - which will make it harder to stay on the surface. http://www.planetary.org/blogs/emily-lakdawalla/2014/11112320-philae-update-go-for.html http://www.planetary.org/blogs/emily-lakdawalla/2014/1111232... Still has two harpoons and ice screws!
- chime 12y agoAnother article on the matter: http://blogs.esa.int/rosetta/2014/11/12/rosetta-and-philae-go-for-separation/ http://blogs.esa.int/rosetta/2014/11/12/rosetta-and-philae-g... Like they said, here's hoping that it doesn't land on a boulder or a slope.
- aruggirello 12y agoThere is a possibility the pins actually worked. I think they are going to attempt to fire the thruster anyway.
- jdiez17 12y agoSome scientists believe the it might be the pressure sensors that have failed instead of the cold gas system itself. It's not an unanimous opinion though. Well, we'll see.
- Icybee 12y agoIs it just me, or does it keep buffering for anyone else?
- kecebongsoft 12y agoIt's really smooth here in Malaysia.
- seszett 12y agoWorks fine in 720p here (France).
- superkuh 12y agoOn some linux configurations flash 11.x doesn't seem to work with livestream. A handful of seconds play then it permanently buffers. One solution is to use the python program livestreamer (http://livestreamer.tanuki.se/en/latest/index.html http://livestreamer.tanuki.se/en/latest/index.html) to play the stream in vlc.
- exDM69 12y agoSame thing here. I am unable to watch this in the browser on Linux. Flash on Android doesn't work either. Using the Livestreamer script with VLC now.
- Icybee 12y agoThank you so much! It fixed the problem 100% I didn't know about the streaming problem with Flash on Linux. That would explain some past problems I've had with other websites.
- hereonbusiness 12y agoIt seems to work in chrome with pepperflash, and not work (buffers) in firefox with the regular flash plugin.
- yoha 12y agoIt's available in Debian repositories as `livestreamer`. Command line for Rosetta live stream is: $ livestreamer "http://new.livestream.com/accounts/362/events/3544091" best
- deleted 12y ago[deleted]
- sidcool 12y agoUpdates: (Animation of where Rosetta is : http://sci.esa.int/where_is_rosetta/ http://sci.esa.int/where_is_rosetta/) 1. Comet is warmer than expected, estimating presence of dust. 2. Comet has Ammonia based gases in atmosphere and Magnesium in the soil. There is water in small amounts. 3. The gravity is one ten thousandth of that of earth. 4. NASA has a few instrument mounted on Rosetta. The microwave instruments, plasma instruments and Electron analyzer. 5. The landing site has clearly been identified. Rosetta will send 5 high-res images every hour. There were some minor hiccups last night. 6. Many high profile science experiments will be conducted during the first 48 hours after landing. This will be followed by the long term experiments whose results will take time. 7. Rosetta has executed a successful separation phase. The team is ecstatic :) 8. Team has lost contact with the lander, but the spokesman said this was expected and the contact will soon be reestablished. 9. It will be few hours before some new updates.
- fla 12y agoThey received the confirmation that the lander separation was successful. EDIT: First lander data expected in about 2 hours from now.
- deleted 12y ago[deleted]
- aruggirello 12y ago> NASA has a few instrument mounted on Rosetta. The microwave instruments, plasma instruments and Electron analyzer. Which instruments are mounted on Philae?
- moioci 12y agonew meaning for separation anxiety.
- Cowicide 12y agoI just now watched their reaction after the successful separation where it's now on its way to landing on the comet. Very cool, thanks for posting this! The video stream was flawless, by the way, with great quality audio and video. Apple and others should learn from them how to do streaming right.
- tempodox 12y agoYes! This is the kind of news for HN :) We should have something like this every month or so.
- makeusz 12y agoIn the meantime: https://www.youtube.com/watch?v=H08tGjXNHO4 https://www.youtube.com/watch?v=H08tGjXNHO4 (Ambition the film)
- markmm 12y agoI hope they manage to blow it up or we are all doomed
- joering2 12y agoCan someone actually explain me how is it possible to even rendezvous with an object that moves so fast and is so violent? I mean, this is not a Moon orbiting a Planet, but rather a very violent object storming through the Universe.
- soneca 12y agoThey made Rosetta also moves so fast. "Violent" here is an exageration, as at the vacuum (or near-vacuum), if both objects are moving in the same direction and speed, relatively to each other they are very close to still... and calm.
- mml 12y agoThe lander is in the comet's frame of reference. To it, the comet is stationary, and the universe is whipping around them. The same way you perceive yourself to be stationary on the earth, despite earth orbiting the sun at 67 thousand miles an hour.
- robin_reala 12y agoMovement in space is relative. The probe effectively caught up to the back of the comet as it was coming back in towards the sun. This image from the Guardian is slightly outdated but presents the path Rosetta’s taken well: http://static.guim.co.uk/sys-images/Guardian/Pix/pictures/2014/1/20/1390240703787/rosettaLocatorWeb.png http://static.guim.co.uk/sys-images/Guardian/Pix/pictures/20... As for violence, I assume you’re talking about the comet’s tail? This happens when comets approach their perihelion and the sun heats them up. The heat starts a process of outgassing from the comet which the solar wind blows away (the tail of a comet always points away from the sun). Rosetta’s target isn’t close enough to the sun at the moment for this to be problematic.
- Sharlin 12y agoThe 67P is a short-period comet. Its orbit is quite elliptical, yes, but nowhere near as elliptical as those of long-period comets, arriving from the Kuiper belt or even farther from the freezing outer reaches of the Solar System. Consequently, its velocity, even near perihelion, is not that high, and matching orbits with it is, while not trivial, not hopelessly hard either. That said, Rosetta did spend 10 years in space and needed multiple gravity assist maneuvers in order to finally rendezvous with the comet. Still, the circuitous route was more about fuel economy than any fundamental difficulty with reaching its destination.
- Sami_Lehtinen 12y agoIs it just me, or do you find it silly that ESA live stream shows Jessie J advertising. I find it rather strange, but maybe they're just so cash deprived. Hmm? Maybe corporate executive investor dashboard should also show random high end product ads? Would it be a good or bad idea? - Maybe the mission failed, and they thought that showing music videos instead of something bad would be cool. Isn't that great idea for future space missions? Let's show "cool" music videos, if things go bad. So people can just be happy and don't need to worry or care what happened.
- donmb 12y agoDoes anyone know where exactly Tschuri is right now in our solar system? Couldn't find any map or sth that illustrates that.
- 8ig8 12y agoThis was linked earlier: Where is Rosetta http://sci.esa.int/where_is_rosetta/ http://sci.esa.int/where_is_rosetta/
- 5414h 12y agoi think its going to explode
- franzb 12y agoAm I the only one noticing, and wondering, why the operations center is nearly empty? Lunch time?
- mkempe 12y agoThe Europeans don't pretend that "mission control" actually controls the current, live sequence of events?
- franzb 12y agoI'm European myself. I understand that the one-hour roundtrip doesn't quite allow for quick interventions, still I would expect operations people to be there "just in case", or at least to monitor the (I presume) continuous down stream... I find that there's a striking lack of activity in that room :)
- deleted 12y ago[deleted]
- tinkerdol 12y agoMy guess would be they are getting rest now before the flurry of activity and long hours starting soon.
- grey-area 12y agoThe descent is long, unpowered, unguided, and 30 minutes away in time - if something goes wrong, all they will be able to do is watch, in fact not even that, because there is no data from the lander yet. They're not expecting any data till 1400 or so, and then they'll gradually get some descent data back, but whatever happens, they won't be able to affect the outcome of the descent now. Before the data comes in was probably a good time to get some rest/food.
- Blahah 12y agoHAL has everything under control.
- hughes 12y agoThe live chat in ##cometlanding on irc.freenode.net is pretty good.
- fabriceleal 12y agoAh, the pictures here https://www.flickr.com/photos/europeanspaceagency/sets/72157638315605535/ https://www.flickr.com/photos/europeanspaceagency/sets/72157... remind me of Eraserhead :)
- toblender 12y agoThey should play some music. I'm watching this with pop music in the background, and it's way less tense...
- edgartheunready 12y agoMust be watched with this on repeat: https://soundcloud.com/fauzkhan/hanszimmerinterstellardayonedark https://soundcloud.com/fauzkhan/hanszimmerinterstellardayone...
- edgartheunready 12y agoMust be watched while listening to this on repeat: https://soundcloud.com/fauzkhan/hanszimmerinterstellardayonedark https://soundcloud.com/fauzkhan/hanszimmerinterstellardayone...
- flexie 12y agoLanded!!! Awesome :-)
- fla 12y agoLanded !
- kkitay 12y agoPhilae landing confirmed—receiving data—"harpoon fired and rewound".
- dedene 12y agoTouchdown: https://twitter.com/ESA_Rosetta/status/532565327721545728 https://twitter.com/ESA_Rosetta/status/532565327721545728
- welshguy 12y agoIt's down. Harpoons fired. Telemetry active.
- louhike 12y agoUnfortunatly, the harpoons did not. But the lander seems ok. The mission control is trying to find a way to fire the harpoons.
- welshguy 12y agoI know, even though they said they had fired and the cable had rewound, to draw the lander in closer. They've shut down media and comms until tomorrow at this point. I'm getting a bit worried now.
- nsxwolf 12y agoIs there actual video of the landing? I'm still just seeing talking heads on the live stream. Did I miss it?
- imdsm 12y agoI don't believe so, not so far anyway, that'd be a technical feat itself.
- viewer5 12y agoHow come? It's just a stream of images, right? Though the power cost of transmission might be high, I guess; I don't know how these things work.
- Brakenshire 12y agoThey've only sent back two images so far, I think we can assume that the bandwidth of the signal is very low, at that distance. At the moment it's better to use it for sending data than pictures. Perhaps they will have stored something like that locally, and can transmit them later.
- noselasd 12y agoBut you then have to have the capability of taking pictures at a decent frame rate, and the capability and bandwidth to store and forward those images to earth, which these 2 spacecrafts do not have.
- car 12y agoThe DLR telemetry page, for the technical inclined: http://www.musc.dlr.de/philae/telemetrie.html http://www.musc.dlr.de/philae/telemetrie.html