« first day (134 days earlier)      last day (4103 days later) » 
00:00 - 23:0023:00 - 00:00

00:01
that thing in the middle is the sun?
Yup that's the screened Sun by the SOHO LASCO C3
this gif animation here is fantastic: nasa.gov/content/goddard/…
might take some time to fully load
some more might be available later also from the SECCHI team ... look under HI STARS A: secchi.nrl.navy.mil/sccimages/index.php
 
2 hours later…
02:19
@TildalWave Did I successfully copy your answering style?
1
A: What caused Curiosity's electrical trouble?

Undo                                                              Curiosity before launch (img credit The Atlantic) According to this space.com article (and several other sources), the most likely cause was an internal short in Curiosity's radioisotope thermoelectric generator (RTG) - the thingy tha...

@Undo haha why would you wanna do that? But yeah, close enough I guess. There was some IIRC ~ 11 V undervolt event (with average around 4-5 V?), i.e. likely some foreign body in the wiring, could be anything really. They had those before, tho never 11V (I think the highest previous was ~ 8V??)
@TildalWave Why would I want to? Because you write awesome answers!
@Undo Oww cheers! blushes
There's others that write awesome answers too BTW ;)
I need to add to some threads tomorrow, or even ask a few questions for TOTW... it's been a while since I wrote anything, almost 3 days now LOL
so much to read...
@TildalWave Well yeah, but in a recent survey of the top ten awesome answers, nine were found to bear the name TildalWave and the diamond of perfection.
@Undo huh? where?
02:34
@TildalWave In the 10k awesome answer list, of course :)
gtg, brb.
02:56
back
This answer needs some editing.
press Undo :P
AAAARRGHHH!
lol
$\underline{\rm Z}$
Oy @ManishEarth!
03:52
waves drowsily
@TildalWave the applet simply doesn't load here. how long did it take to load on your browser?
@Undo was ist das?
Does S1's 0.12_c_ qualify as relativistic velocity?
p.s. precursor to possible question "What is the boundary figure for relativistic velocity?"
@Undo you might be interested, or anyone else on a mac: itunes.apple.com/us/app/skysafari-3/id437108143?mt=8
SkySafari 3, FREE FOR COMET ISON - THRU DEC 1ST 2013!
@Everyone dunno, worked fine for me... try reloading or check in console if there's some other issue
04:11
I have no idea how to proceed on this one:
0
Q: How does curiosity finds it's own way to destination?

HashWhat kind of technique does curiosity employ to find the safest (probably not the fastest) way to the destination that was given by NASA from earth?

I'm half tempted to flag as VLQ, actually.
@Undo it plays halo3, and tries out the one of the buggies :P
@Undo Give @Hash time to edit it, add more detail to it? I've added a few quote-worthy sources in the comment. It's a start, but there's tons of articles on the subject online.
@Tildal Yes, but any decent answer to that question is going to require tons of research - maybe close the q itself as too broad? (Just me thinking out loud)
@Undo No need, it's not that difficult to answer really. It depends on the answerer then to what detail they'd like to go. It can be dismissed with a few bullet points and links, or delve in detail about fine points to it. I don't think the question is bad, but the answer leaves much to be desired so far.
OK, question needs a bit of finetuning re grammar used, but it's not too bad otherwise
Anyway, you all have fun, I'm off to bed... about time too, it's 5 am ;) Good night!
'Night, @Tildal!
I'm out for the night too. Might go lurk around Meta for a while, then go to bed.
04:29
abck
'nini @Tilda @Und
 
2 hours later…
06:17
@Undo ?
 
3 hours later…
09:29
@Undo:
in The Whiteboard, 25 mins ago, by ChrisF
Who's behind the mass flaggings of "+1" type comments?
09:48
hi @ManishEarth
what's new?
exams over.
Me back to work on graphene, once I can get the @#@!% SSH working
sounds like fun
very stressful time for me at the moment
10:05
No stress today - holiday!
 
2 hours later…
11:49
_glares_

Why isn't the perihelion an event here?
c'est terrible. An empty Pod Bay?
12:09
@TildalWave you have got a job here space.stackexchange.com/questions/2653/…
hi @Every
'o @Has
@Every have you checked that answer in the link above ?
12:54
back
@Has Which answer?
13:20
@Every the link that i provided for TildalWave
That's a question ...
@Every yeap but the answer ' I want questions only.... :( ![
]1'
Worthy of a down-vote I think.
Doesn't really attempt to answer the question, does it?
Was that your answer?
@Every but the image he added is very ridiculous..
Just put a comment in there to convey to him/her/it that he hasn't really answered the question, and how you feel about the image
Might add a link to the 'how to answer' page too
14:07
bbl.
14:39
still in one piece
@Hash deleted, thanks ;)
@Hash it was likely probing for future spamming, the message doesn't have to make any sense, what matters to them is ability to post content onto the pages here
That image might also be a signature for all we know... just something that's relatively easy to search on via Google. A spammer's portfolio in a sense.
 
1 hour later…
16:03
@TildalWave Inspite of such security that stackexchange has, how does these peoples spam over here ?
@Hash Mostly manually I guess, same as we post stuff, they just do it through proxies more so they can easily change their IP address. Some aren't even that good LOL
most scripts would get caught tho
In this vacation i must learn how to find spam still long way to go @TildalWave
19
A: Is there a spam storm?

TildalWaveEvery single day is a spam storm day. To give you an idea, take a look at these statistics (on 04/02/2013) from Project Honey Pot, which is just one out of many such networks for identifying spammers and spambots: Or check live statistics for past 10 minutes from UCEPROTECT network. These ar...

holidays make no difference ;)
stormy weather on the internet every day
@Everyone server is overloaded what is it?
ah I know it I actually had it open from before
16:09
It's the perihelion range/velocity calculator
it's not too accurate actually, just a projection
Heh. Stack-overflow, you think? Is any site at present giving real-time velocity (8 min late, that is)
there, another one from NASA Eyes for the perihelion
@Every have you seen the ison comet.?
@Tilda URL please
16:11
@Everyone it could be inferred through SOHO / STEREO observations
@nasa_eyes puts #ISON @ 844,000 mph (377.3 km/s or 0.126% c) at perihelion on 11/28 @ 7:38 UTC http://eyes.jpl.nasa.gov/launch2.html?document=$SERVERURL/content/documents/comets/comets.xml http://t.co/EObjN3F86n
@Hash Now? No. My view, East & West, blocked by taller buildings
you'll have to install it tho
Awww
@Everyone ah wait the URL broke here ...
Praised be the man/woman/... who invented the tiny-url
Blarg. 12kbps
16:13
this is latest
hmmm no actually from front it's a bit more recent even
Anyhow would that be experiencing tides that close to Sol at that 800K kmph velocity?
Split.
Torn in two, unless I miss me guess
@Everyone sure
It's all up to #ISON how it takes the corner. Will it understeer/oversteer and be torn apart as it slingshots past the Sun? #willitbreakup
joking a bit on the jargon there ;) but it's not far from the truth either...
What's that artifact at about 8'o clock in the image above the comet tail?
Does it go around the sun, or just bounce off?
it should now be basically a molten dirtball held together by surface pressure and inertia, not much more
look how elongated its nucleus is
16:16
@All i find that velocity increase as the distance between the sun and the comet decrease :-)
@Everyone should be Antares
And thus I end this existence; remember me.
Antares? oh .. right
0
Q: TOTW - Haiku questions?

geoffcLike my question TOTW - Alliteration questions? could we consider a Topic of the Week where the questions are in the form of a haiku? Just looking for a fun way to raise interest... (Also since Meta points don't count, lets see how many downvotes I can generate, in good faith!)

IIs there a chance that it hits the sun?
@Hash Depends on what it is made of, I think. But very unlikely it'll make much of a splash
More than inertia ... I think
@Tilda @Geoff How much would it mass by virtue of that 0.1c velocity?
16:22
what is the meaning of
@Hash topic of the week
@John thanks .. ;-);-)
@Has Thanks (+:
45 min ago
nice shot of ISON nucleus
@Hash no
Hmm?
16:29
no way. even if it breaks up ... simply too much solar pressure
What I'm really curious about - what got it moving towards Sol 5M years ago anyway? Tiff within the family?
@Everyone I don't understand your question there, what do you mean with "mass by virtue"?
@Everyone aliens of course
@Tilda Doesn't it feel heavier the faster it goes?
@Tilda Don't say that )+: You're giving me the goose-bumps
@Everyone hehehe
seriously. ought to see my forearms
no fair
16:33
I thought we can put everything down to aliens if we don't know the cause?
sure we can.
but how much does it mass per special relativity? is 0.1c relevant in that context?
I just saw some video on youtube where the author shows some animations from SOHO (like the one above, just stitched frames) and asks what is the object behind the Sun, as if it's something strange and artificial ... it was just a background star, or perhaps a planet (looked like Mercury to me)... and then he fired up celestial sim and looked at what could be behind the Sun from vantage point of Mars LOL
Clever
@Everyone likely, but I'd guess out of my head that you'd get far greater tidal forces by simply being that close to the Sun... it's close to one Sun radius in distance to it now
within 1 radius I think
16:57
In related news, I have given my comment flagger to the people at Programmers:
in The Whiteboard, 8 hours ago, by ChrisF
Who's behind the mass flaggings of "+1" type comments?
in The Whiteboard, 8 hours ago, by ChrisF
While I can see the benefit of getting rid of said comments, I don't really appreciate logging in to see so many flags on Programmers each morning.
back
_now knows @Undo 's real name is @ChrisF _ q+:
@Everyone I can guarantee you it isn't :P
Scroll up q+:
@Everyone What am I scrolling up to?
heh. you troll, you (+:
Is ISON on topic in The Observatory?
17:08
@Everyone No reason it wouldn't be. It's on topic here, though :)
In that case, would someone please take pity on puir little Everyone, and convey present velocity/range of that celestial body?
I would if I could find it :)
fries
17:42
Awake, anyone?
I am!
Did you point the comet at a flag too?
@Everyone It was getting on my nerves.
Tsk.
18:07
Are we there yet?
18:32
looks like ISON has evaporated
and this is from an hour before
still waiting for DSO images
sniffle
Did it achieve 0.1%?
well dunno these are totally unconfirmed, could be just underexposure since the part of the image is hitting corona
Uh
Underexposure?
about 15 minutes later it still looks "OK" on STEREO ... but it is in a sense now just a stretched ball of plasma, who knows if it'll be able to keep together
@Everyone short exposure
Another 20 minutes
18:47
about yes
Closer to 50 minutes by my estimate. Should be there 19:38 UTC/GMT
sorry, miscalculated there... 50 minutes
SDO is moving in position: sdowww.lmsal.com/suntoday_v2/…
any time now
Thought it's 1918
19:00
I think that's it, looks like it's bought it by tidal forces... that looks like plasma remains to me near the middle of the image
So. RIP means Rest in Plasma ...
Puir S1, to come all this distance
How much did it achieve anyway?
19:22
there's no nucleus visible any more on thermal imaging either
@Everyone got us all looking, that's quite a feat :)
19:50
Blimey looks like everyone missed that SDO frame I captured there up and retweeting my post like crazy, even the more official ones. I did have just enough room in the tweet to mention it's Falcon 9 next... still getting 20 new emails notifications per minute, grrrrr!!
there you go, so you don't feel left out :)
Now really... Falcon 9 is next. Don't even mention ISON!!
Tonight's Falcon 9 launch is targeting a 5:39pm ET liftoff - 1st Thanksgiving launch from Cape Canaveral since 1959. Happy #Spacegiving!
ugh. I ought not nod off here at the system; too old to do things like that anymore
anyhow, 'nini. Have a fulfilling launch
20:44
Oy @TildalWave, awake?
21:00
aye
sup?
@TildalWave Mind providing an example of the HTML used to show comment flags in the mod queue? I can provide the comment flag.
@Undo Not sure what you mean? A printscreen? It's a mess, just imagine a line of text about the flag (the reason), then if it's a certain type of a flag you see who posted it, and below it you have the link to the post where it was posted and a few buttons with options what to do with it. Nothing fancy really
I always open the thread it was posted in so I see it in context, make my mind about it better ... so that mod page is just a list of flags. I don't think anyone ever went to design it either, doesn't look like it LOL
@TildalWave Another mod I talked to suggested making it a 10k /review item - whatcha think of that?
21:11
@Undo dunno, you see that's policy and I have a policy not to give opinions on policies
@TildalWave Ah, I have a policy not to have policies :)
But thanks :)
it's not my policy :P
22:02
We'll be live with webcast for the SpaceX Falcon 9 launch in about 15 minutes :)
22:15
Lol, I think we just pinned that twice :P
darn now I can't pin it again
@Undo can you try?
Just did :P
It's not pinned
just starred
OK wait
Live stream for the launch of the SpaceX Falcon 9 on its SES 8 mission to GTO is now available via SpaceX Webcast More via these links: Press Kit (PDF) | Photos | Videos
I think you whacked me with your hammer. Be careful with that thing! :)
@Undo yup, and it tells me the same and I was that bloody moderator that unpinned it LOL
22:19
28
Q: Clearing chat pins results in a self-imposed moratorium on future actions

CalebSeven steps to reproduce a trivial yet annoying bug whereby acting as a moderator bans yourself from taking future action. Be a moderator and take your mod-hammer with you into chat. Pin a chat message. Unpin same. Realize you didn't really want to unpin it; you were acting prematurely. Try to ...

@Undo Ah yes cheers, I knew that something like that might happen, I just forgot about it.
Oooh, I'm in time for a launch? When is it @TildalWave?
Perfect.
well T-14 minutes
22:26
I'm an engineer - I was rounding
'happy with the rocket where it is' - well leave it there!
I have an uncontrollable urge to say 'KABOOM' whenever someone says 'initiating terminal count'.
@Undo or else "bip bip beeeeeeeeeeeeeee"
@RoryAlsop hehe was close enough
it's now T-10
This is my first live launch, methinks.
"bleeding in the first-stage engines' EEEK!
nitro purge ... @Undo pay attention where it comes out from, there's an exhaust redirection tunnel under it
22:32
There's some snow on that grass, let's see if it melts :)
The holder thingy is falling off! Run!
slow falling this :)
It's big.
Takes longer to fall :)
T-4
T-2
T-1 min
T-10 sec
22:39
t-10
8
4
Aborting?
abort?
:(
blimey on T-2 sec
never saw it aborted that close
that says T+2
ah yes
22:40
What happened?
apparently shutdown after ignition on T+2 sec
Any chance for launch today?
so they can potentially restart from +2 seconds?
no they'll reset to T-13 min, at least that's to my understanding
@Tildal So we could launch today?
22:42
yup
And here i thought it was fate that just after an hour long car ride there was a launch :[
Good.
> Launch window: 22:39-23:44 GMT (5:39-6:44 p.m. EST)
This was on the first window
0
Q: What caused SES-8's Falcon 9's launch computer to shutdown at T-2 seconds?

UndoSES-8 had its launch aborted at T-2 seconds. What, exactly, caused the flight computer to decide the engines weren't ready?

(might get some traffic)
@Undo That was T+2 seconds
22:46
this is the problem with commercial launchers, detail is scarce and you'll likely only hear what sounds good for them, even if it's a failure
@David Really? @Tildal?
@Undo yup
as @RoryAlsop pointed out, it's been aborted after ignition on T+2 sec
Fixed.
Resetting the clock to T-13
@Undo you'll likely have to wait for any good answer on that tho
@Tildal Of course.
Sounds like a dragon or something.
22:48
I had better get some popcorn. I bet that's why i got aborted in the first place. The rocket must've done a scan and found that not everyone that was watching had a bag of popcorn.
pops popcorn
So, are they going to send someone in there to fix whatever went wrong, or are they just going to keep trying?
I think they said something about sending a launch team to analyze the telemetry data
They said something about "The rocket looked at the telemetry data and aborted the launch at T+2 seconds"
SpaceX has the best live streaming thing I've seen.
Really? Its super glitchy for me.
@D
@David on the Livestream link?
22:51
It's not bad here - and I only have 2Mb broadband
@Undo Yes
@DavidFreitag set the quality to fit your bandwidth, there's an icon on bottom right if you hover over it
there's no "auto" like with livestream / ustream
Clock reset.
Ah, muuuuch better.
Why do they keep saying 'entering 1'? Do they have a keyboard with buttons '1' and '0' or something, and '1' does something?
00:00 - 23:0023:00 - 00:00

« first day (134 days earlier)      last day (4103 days later) »