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Space United States

T-43 Hours and Counting 192

An anonymous reader submits "As seen on NASA TV, for the first time in over two years, the countdown clock has started at 6:00 PM EDT for the Wednesday 3:51 PM EDT launch of Space Shuttle Discovery on the first of the return to flight test flights. The launch is not for certain due to weather issues associated with hurricane Dennis. Currently it is estimated for a 70% chance of launch on Wednesday, with the chances lowering later in the week. If you are confused on how T-43 hours equals almost 3 days, perhaps you should read Countdown 101."
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T-43 Hours and Counting

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  • NASA TV (Score:3, Informative)

    by rerunn ( 181278 ) on Sunday July 10, 2005 @07:35PM (#13029424)
    NASA TV certainly has come a long way since the days of CUSeeMe rooms. Anyone remember those?
    • Re:NASA TV (Score:5, Funny)

      by mcc ( 14761 ) <amcclure@purdue.edu> on Sunday July 10, 2005 @07:47PM (#13029489) Homepage
      Anyone remember those?

      All I remember about CUSeeMe is a lot of nudity.

      Man.... NASA sure has gotten a lot more conservative since then
    • Re:NASA TV (Score:3, Insightful)

      by Danathar ( 267989 )
      yea.....I also remember them providing a multicast feed of NASA TV to the Education/Research community. That feed mysteriously dissapeared years ago. Now the only way to watch it in high quality (NOT WEBSTREAMING) and multicasted is via the University of Oregon...why NASA does not do this themselves is beyond me, it's not like they could'nt throw up a multicast feed in Mpeg-1 in say 20 min.
  • by spectral ( 158121 ) on Sunday July 10, 2005 @07:36PM (#13029429)
    Where you have short periods of time that somehow extend to 2-5x as long as they're 'supposed to', because of all the time stoppage in the middle!
  • by ChillyWillie ( 887514 ) on Sunday July 10, 2005 @07:37PM (#13029436)
    Maybe NASA is leasing their timer from the NFL where the last several minutes really takes a half hour.
  • Hurray! (Score:5, Interesting)

    by Fjornir ( 516960 ) on Sunday July 10, 2005 @07:38PM (#13029446)
    Worlds grow old and suns grow cold
    And death we never can doubt.
    Time's cold wind, wailing down the past,
    Reminds us that all flesh is grass
    And history's lamps blow out.

    But the Eagle has landed; tell your children when.
    Time won't drive us down to dust again.

    Cycles turn while the far stars burn,
    And people and planets age.
    Life's crown passes to younger lands,
    Time brushes dust of hope from his hands
    And turns another page.

    Yet the Eagle has landed; tell your children when.
    Time won't drive us down to dust again.

    But we who feel the weight of the wheel
    When winter falls over our world
    Can hope for tomorrow and raise our eyes
    To a silver moon in the opened skies
    And a single flag unfurled.

    For the Eagle has landed; tell your children when.
    Time won't drive us down to dust again.

    We know well what Life can tell:
    If you would not perish, then grow.
    And today our fragile flesh and steel
    Have laid our hands on a vaster wheel
    With all of the stars to know

    That the Eagle has landed; tell your children when.
    Time won't drive us down to dust again.

    From all who tried out of history's tide,
    Salute for the team that won.
    And the old Earth smiles at her children's reach,
    The wave that carried us up the beach
    To reach for the shining sun.

    And the Eagle has landed; tell your children when.
    Time won't drive us down to dust again
    • Re:Hurray! (Score:3, Interesting)

      by PingXao ( 153057 )
      Very nice. I'm glad I didn't see the off-topic mods for this or I would have been really ticked off.

      By now we all know the race to the Moon and Apollo were rooted in the Cold War, and politics had as much to do with that magnificent success as science and exploration. Yet, it was an adventure people will forever look back upon even after those of us who remember the day are gone.

      For many, myself included, who were young and not driven by politics or Cold War rhetoric and one-upsmanship, landing on the M
  • Plug Time (Score:4, Interesting)

    by othiekan ( 772037 ) on Sunday July 10, 2005 @07:47PM (#13029492)
    Since we've got a Shuttle launch post here on slashdot, i think its time to show you the Cheshire Catalyst's Space/Launch stuff that pertains to this. FAQ: http://space.launch.info/faq.html [launch.info] Launch Schedule: http://space.launch.info/launch.html [launch.info] He also has a page about "How to become an astronaut" Enjoy The Info! 73 DE KI4GMB
  • by RickPartin ( 892479 ) on Sunday July 10, 2005 @07:47PM (#13029494) Homepage
    What the "T" in "T Minus bla bla" means? Not knowing has always bugged me.
    • T is simply an arbitrary fixed timescale for the launch, it could easily be "a, b, c" etc but it provides a time frame for how long certain activities ought to take.
    • by battamer ( 846008 ) on Sunday July 10, 2005 @07:53PM (#13029528)
      Time. As in liftoff time. Before the liftoff, the clock regesters as "T minus ..." after liftoff it regesters as "T plus..."
      • It is supposed to be Time minus 43 hours, but it comes out to be roughly sixty-five hours until launch.

        So if we really want to be honest about the count-down, we should say T-65 and then only hold when there is a real delay rather than having four or twelve hour holds which aren't counted.
        • I'd LOVE to have planned hold-times in my software development schedule!
        • So if we really want to be honest about the count-down,

          In some parliaments, (eg, Australia, UK) sometimes a piece of legislation is absolutely required to be passed on a certain date. But when midnight approaces debate is still continuing, so then an official will ceremonially physically stop the clock in the hall until the motion has passed, and it is recorded as passing at the time on the clock.

        • So if we really want to be honest about the count-down, we should say T-65 and then only hold when there is a real delay rather than having four or twelve hour holds which aren't counted.

          Why would we want to be honest about the count-down? Is that more important than the shuttle?

          All that would achieve is to raise the bar as to when a stoppage was put on. There's more pressure to get it done in 5 min 4 seconds rather than when the check is done. Which would you rather have?

          Also, I'm guessing NASA p
    • by iamlucky13 ( 795185 ) on Sunday July 10, 2005 @08:04PM (#13029592)
      It makes more sense if you say the whole phrase:

      T minus 43 hours = launch time minus 43 hours
    • T means Texas, where Houston Control is located. It's just a guess that Lyndon Johnson put the T back into Texas during his years in the White House.
    • As others have said, T = Time. Note that they typically only use T if they are counting in hours or less. If we're talking days, it is typically D-3 = 3 days before. That is where D-Day comes from.

      Kjella
      • Here at Cape Canaveral there are several letters that get used. L (only for minus count, up till coming out of the final hold point) is the actual time till planned launch time. L of course for launch. R has also been used for days prior to launch for Titans. All of these times are based on preparation actions. Some are based on time before launch. Some, you don't want to accomplish until you get past a milestone, which are what the built-in holds, and holdpoints are there for.
      • Actually, the phrase "D-Day" came from the Normandy landings of WW2, where they had to code the possible landing dates to further confuse German spies. A, B, and C days were a wash because of bad weather, and D day was the lucky winner.
        • by Anonymous Coward
          Did you make that up? Every landing in WWII had a D-Day and an H-Hour. North Africa, Sicily, Italy, every one of those Pacific islands ... it's just a designation for the actual day of the attack. Nothing to do with coding different dates as different letters.

          • From wikipedia.org on D-Day:

            D-day for the invasion of Normandy was originally set for June 5, 1944, but bad weather caused Gen. Dwight Eisenhower to delay until June 6, and that date has been popularly referred to ever since by the short title "D-day". (In French, it is called jour-J.) Because of this, planners of later military operations sometimes avoided the term. For example, Douglas MacArthur's invasion of Leyte began on "A-day", and the invasion of Okinawa began on "L Day". MacArthur's proposed inva
      • D-Day was the fourth date available for the British sojourn to France in 1944.
        Before it were A-Day, B-Day and C-Day, all of which were cancelled due to bad weather.

        Do you Americans no nothing about WWII except the big bomb bit?
  • by OverlordQ ( 264228 ) on Sunday July 10, 2005 @08:02PM (#13029579) Journal
    Linkeh [nasa.gov].

    Information about tuning in to NASA TV can be found here [nasa.gov] as well.
  • by Somegeek ( 624100 ) on Sunday July 10, 2005 @08:03PM (#13029589)
    Is no one else surprised that they are possibly launching this mission on a 13th? I know that there is no real reason to the bad luck that NASA has had with that number, but I wonder about the possible affects of people on the project worrying about bad luck, and that causing a problem?

    A self-fulfilling bad luck prophecy, something going wrong because they are worried about bad luck?
  • Anyone know what the policy is for watching a shuttle launch? I wouldn't mind making a trip out there to see it before the shuttles get the axe in the future. It might be 80s technology but it was definitely a first and a workhorse. A lot of things were done with the shuttles and their crews.
    • Re:Visit Policy (Score:2, Informative)

      by othiekan ( 772037 )
      Basically, its come to somewhere nearby, and watch. If you dont want to spend a whole lot of time or money, i suggest Titusville (where I live) This place is right across the Indian River Lagoon from the Island NASA is on. There are many parks, and space-related memorial sites to view the launch from. While you're here, you can also visit the Space Museum, and take a trip out to the KSC Visitor's Center for a day. 73 DE KI4GMB
      • Any particularly good spots that you can recommend for your fellow Slashdot brethren? I plan to go Wed and want to get a good spot. I might drive up Tuesday night and car camp if it ensures my getting a good spot. I figure tickets are gone by now. I'd even kayak (outside restricted space of course) if it ensured a good sight.
      • Can we stay at your place? Do you have spare beds? Does your Mom make good tuna salad?
      • You lucky americans! Up here in Canada, I'll have to fallback to that damn Windows Media stream :(

        Oh well, at least we have good beer!
    • Re:Visit Policy (Score:2, Interesting)

      by Yardboy ( 742224 )
      I believe you have to request a (free) pass ahead of time. 3 days might be cutting it a little short - I know that most night launches are 'sold out' well in advance. The NASA site should have all the info you need on requesting a pass.

      I was given a pass from a friend who lived in Titusville at the time, back in 91 or 92. It was awesome watching the launch. Even from several miles away where you are allowed to be, the ground shook and the air crackled.

      c.
      • I'm planning a later visit but thanks for the info. Someone once told me that a shuttle launch sounds like a string of dynamites going off. I can't wait to experience it. It's very beautiful and awesome in a very nerdy way.
    • Personally, the family and I just happened to be in the area on the day of launch, heading back north from the Keys. I was channel-surfing on the radio, stumbled upon the station that NASA was broadcasting on, and noticed that we were just close enough to barely make it on time.

      We got off at the exit, drove until we heard T -5 announced on the radio, and then just pulled off the road. I grabbed the video camera, we all climbed up on to the roof of the motorhome, and watched the launch.

      Total planning tim
    • " might be 80s technology [...]"

      More 70s [wikipedia.org] technology, with preparations even in the 60s.

    • It might be 80s technology but it was definitely a first and a workhorse.

      With the recent cuts in the space budget (except for military programs), 80s tech is actually cutting edge.

  • by Yardboy ( 742224 ) on Sunday July 10, 2005 @08:19PM (#13029671)
    T-19 hours and holding This built-in hold typically lasts four hours. * Demate the orbiter's midbody umbilical unit I don't have any idea what this means, but it sounds really sexy. yb.
    • Re:T-19 Hours... (Score:3, Informative)

      by richdun ( 672214 )
      lol...

      Umbilicals provide power and such to the shuttle while it is on the pad. The shuttle's batteries/fuel cells provide enough power for the mission, but they like to run it on Earth-based power for as long as possible before setting it on its own power.

      Just think of "Demate the orbiter's midbody umbilical unit" as "Unplug laptop" before taking it off your desk. I know, not so sexy, but just imagine the laptop is a Powerbook G5 or an Alienware Media Center laptop that is liquid cooled, overclocked, an
      • but just imagine the laptop is a Powerbook G5 or an Alienware Media Center laptop that is liquid cooled, overclocked, and only 1" thin/5 lbs. ...but with an 8088 processor inside.
      • Umbilicals provide power and such to the shuttle while it is on the pad. The shuttle's batteries/fuel cells provide enough power for the mission, but they like to run it on Earth-based power for as long as possible before setting it on its own power.

        Just think of "Demate the orbiter's midbody umbilical unit" as "Unplug laptop" before taking it off your desk.

        Mostly correct. Power to the Shuttle systems comes in via the tail service masts (the big white boxes on either side of the rudder when the Shut

  • by Andy Gardner ( 850877 ) on Sunday July 10, 2005 @08:21PM (#13029679)
    http://www.nasa.gov/images/content/64568main_ffs_g allery_mcc_image2.jpg [nasa.gov]

    Assistant: Sir, the TV ratings for the launch are the highest in ten years.

    Everyone: Yay!

    Controller: And how's the spacecraft doing?
    Assistant: I dunno. All this equipment is just used to measure TV ratings.

  • by xmas2003 ( 739875 ) * on Sunday July 10, 2005 @08:23PM (#13029683) Homepage
    The locals already know this, but for those /.'ers that happen to be in the area, one easy and decent place to see the launch is from Cocoa Beach since it is just across the water from the launch pad. I saw a pre-dawn launch a while back from the Hilton that was pretty darn awesome. They have a big parking lot and you can simply walk through the lobby, grab a drink, check out the bikini's - maybe the Coppertone Girl [komar.org] will be there - and then watch the sky light up ... although won't be quite as awesome as a night launch.

    /.'ers will be checking their watches to measure the delay from seeing engine ignition to when you hear it and the dividing by 5 to get the distance in miles! ;-)

  • quicktime formats? (Score:3, Interesting)

    by v1 ( 525388 ) on Sunday July 10, 2005 @08:23PM (#13029685) Homepage Journal
    Strange, at nasa's nasatv page they list links for flash, realplayer, wmp, and quicktime. I can't see any use for the quicktime, as the nasatv appears to only be on realplayer and wmp. Is there really a quicktime link buried somewhere, or is that quicktime download link irrelevent?

    http://www.nasa.gov/multimedia/nasatv/index.html [nasa.gov]
  • Wait, so, T minus 43 hours is NOT in fact 43 hours before the launch. May I ask WTF? Dude, I've got this crazy idea, I know it's radical, just follow me here!

    Let's have a countdown. Right? Only it shows the actual time until countdown. Crazy right? A timer that gives useful information?

    • Re:T... as in WTF? (Score:5, Interesting)

      by heypete ( 60671 ) <pete@heypete.com> on Sunday July 10, 2005 @08:56PM (#13029799) Homepage
      That would work...except for the built-in holds where they do various checks. If a check fails, they have to keep the countdown timer paused until the problem is resolved.

      Also, even without the built-in holds, what would happen if during the countdown a problem is detected and they need to repair it? Stop the clock? Keep it running?

      I would much rather have NASA and their scientists/engineers do things right, rather than be pressed for time. If they have to hold for a few hours at T-43 hours, so be it.

      T0 is launch time, period. They don't launch at T+5 hours because there was an issue and they kept the clock running.

      It's just the way it works. I guess when one is launching a multi-billion dollar spacecraft on top of hundreds of thousands of gallons/pounds/whatever of rather volitile fuels, strapped to Big Beefy Missiles, carrying a multi-million/billion dollar payload, I'm pretty sure one doesn't want something to go wrong, and thus take every practical measure to ensure that the launch goes off without a hitch.
  • by Anonymous Coward on Sunday July 10, 2005 @08:36PM (#13029722)
    "Clear the blast danger area of all nonessential personnel" What kind of flight plan is that? Shouldn't they leave the nonessential people in the blast danger area, and the essential people get to spare their lives???
  • by Baricom ( 763970 ) on Sunday July 10, 2005 @09:44PM (#13029981)
    Here's a quick nitpick about the linked Countdown 101 [nasa.gov] from the summary - the clock in the picture reads +00:00:05, yet the caption says it was taken "before a Space Shuttle launch."

    I enjoy bloopers, and hopefully somebody else will too. :)
  • No wonder! (Score:5, Funny)

    by Cervantes ( 612861 ) on Sunday July 10, 2005 @09:52PM (#13030017) Journal
    Sheesh, no wonder every time you guys get something from a foreign provider you always screw up the conversion... it's bad enough you have feet instead of meters, gallons instead of liters..... but, come on man, you guys just have to have your own special, unique number of hours in 3 days?!? It was all fine and good that you started spelling things differently after the War of Independance, but that's just wrong!
  • I live in Tampa and the wife and I are thinking of taking our baby to see the launch. How early do you need to arrive?
    Oh, and yes, some of us here at slashdot have spouses and even (gasp) offspring!
    (sarcastic comment overload)
    • if you'd like to see the launch from the ground, get here a couple hours ahead... i suggest stopping at my workplace (Krystal) and grabbing some burgers to whittle the time away. If you go to the right place, there might even be someone with a direct link to the count down. Hope to see you, and good luck! 73 DE KI4GMB
  • Still confused ... (Score:4, Informative)

    by dougmc ( 70836 ) <dougmc+slashdot@frenzied.us> on Sunday July 10, 2005 @10:20PM (#13030117) Homepage
    If you are confused on how T-43 hours equals almost 3 days, perhaps you should read Countdown 101."
    I had to read Countdown 101 a few times before I realized what I was missing. It's the ... and holding periods that make up the difference. I guess when they start working on those things, the clock stops. Which seems very odd, but I guess they're just not sure how long they'll take.

We are each entitled to our own opinion, but no one is entitled to his own facts. -- Patrick Moynihan

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