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Science

New Service from NOAA - Real-Time Solar Imaging 13

InfoSec writes "I was checking out the National Weather Service in the US earlier and I noticed a new feature added to their site.... Near real-time solar imaging!!! The images are VERY kewl. Does this mean that we'll soon be predicting solar events?"
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New Service from NOAA - Real-Time Solar Imaging

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  • by Anonymous Coward on Friday April 11, 2003 @07:25AM (#5709549)
    I've heard there's a delay of 8 minutes or so.
  • by GSearle ( 40628 ) on Friday April 11, 2003 @07:59AM (#5709709) Homepage
    If you want to see a lot more realtime solar imagery, go to the SOHO [nasa.gov] web site. This is a satellite installed at the Lagrange point between the Earth and the Sun. It's bristling with sensors, all dedicated to watching the Sun.
  • hmm... (Score:3, Informative)

    by C21 ( 643569 ) on Friday April 11, 2003 @09:09AM (#5710167)
    that depends on who you mean by "we". Amateur astronomers already predict solar events, such as when we're entering a coronal hole, when high radiation is going to hit. Mostly they predict these kind of things so they can catch auroras, but some of it is just purely scientific, as well. There's sun watch groups you can join.
  • more (Score:4, Informative)

    by barakn ( 641218 ) on Friday April 11, 2003 @10:38AM (#5710862)
    The SXI data has been available for weeks. It replaces x-ray images which were on the Internet for years from the Yohkoh satellite until it saw one too many eclipses [isas.ac.jp] and spun out of control [isas.ac.jp] in Dec. 2001. Other near-real-time (or at least daily) images of the sun can be found in numerous [nasa.gov] places [maj.com]: SOHO and SXI are not the only sources. And there already are predictions [noaa.gov] of solar events.
  • by Orne ( 144925 ) on Friday April 11, 2003 @11:33AM (#5711286) Homepage
    The National Oceanic and Atmospheric Administration (NOAA [noaa.gov]) already tracks "space weather". Check out this Primer [noaa.gov] for a good introdcution about what we already know.

    Why is this important? Whenever the Earth's magnetosphere is hit by a solar storm, the change in magnetic field induces a DC ground current in the metal in the earth. For most applications, this has no effect. For the bulk power grid [pjm.com], this is significant -- this DC current seeps into the grid through ground taps, and can damage AC systems. Because the (very) high voltage equipment depends on (very) low currents, these fluctuations can be enough to damage transformers and cause problems on a state-wide scale.
  • I can't see ! I can't see.

    Shouldn't there be some kind of warning ?
  • Celestia (Score:3, Interesting)

    by Picass0 ( 147474 ) on Friday April 11, 2003 @03:20PM (#5712981) Homepage Journal
    At the risk of looking like a blatent karma-whore, this would make a great source for real time celestia [shatters.net] texture maps!!!
  • Spooky ! [noaa.gov]

    If the link doesn't work try viewing an image from 2003-04-11 at +/- 03 hours.
  • Real-time imagery of the aliens cannot be denied! I mean, it is clear that this image [nasa.gov] shows two huge drumsticks aliens are using to play our sun.
  • This thread is down my alley, so to speak. The US official "Space Weather" (i.e. solar-terrestrial data, predictions, aurora, solar images) site is www.sec.noaa.gov - to see current conditions go to sss.sec.noaa.gov/SWN SOHO data/images are very much operational - a quick link is on the front page at SpaceWx.com It is an aging research satellite with a limited lifetime. The new operational SXI data/images (at X-ray / EUV wavelengths) developed at NOAA/Space Environment Center are delayed several minutes
  • Technically it's not realtime, seeing as it takes about 6 (?) minutes for light to travel from the sun to the earth. Hah!
    :p

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