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  1. Thread: HMI Roll Tonight

    by SDO
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    HMI Roll Tonight

    Tonight, April 9, 2014, from 0519-1200 UTC (1:19 am - 8:00 am ET). SDO will execute the HMI Roll maneuver. The spacecraft will spin 360 degrees about the line to the Sun center. It stops along the...
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    EVE Cruciform on April 2, 2014

    http://4.bp.blogspot.com/-PMRhy-IAHhw/Uz1sELtgGKI/AAAAAAAAAoA/yydeOyWVpxw/s320/20140402_212404_512_0171.jpg
    Yesterday, between 1730 and 2230 UTC (1:30 pm to 6:30 pm ET) SDO did the EVE cruciform...
  3. X-1 Flare Yesterday with a Nice Coronal Dimming

    The X-1 flare on Saturday produced a very nice example of coronal dimming. Here is a short movie showing five hours of the Sun in the AIA 193 passband. After the flare happens in the upper right...
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    Momentum Management Maneuver Today

    Today at 1840 UTC (2:40 pm ET) SDO will execute a momentum management maneuver. For about 45 minutes from 1815 to 1900 UTC SDO data may be unavailable.



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    SDO on the Astronomy Picture of the Day

    http://4.bp.blogspot.com/-CfSHu4PftZw/UyBQKsouTsI/AAAAAAAAAmw/QVdM6BW-4dM/s320/Screen+shot+2014-03-12+at+8.16.02+AM.png
    An very nice animation of SDO images for the month of January 2014 is featured...
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    Stationkeeping Maneuver Today

    Today at 2035 UTC (5:35 pm ET) SDO will execute a stationkeeping maneuver. For about 45 minutes from 2015 to 2100 UTC SDO data will be unavailable.



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    2014 Spring Eclipse Season has Begun

    http://1.bp.blogspot.com/-6V5BFaz_RJ0/Uw-t-YOjAfI/AAAAAAAAAmg/ilomieQnQYk/s320/20140227_072943_1024_0193.jpg
    The SDO 2014 Spring Eclipse Season has begun! For the next 3 weeks the Earth will pass...
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    Whoa, an X4.9 Flare!

    http://2.bp.blogspot.com/-JINMOkxR2iQ/UwyN-9V-3YI/AAAAAAAAAmQ/JyJgN1fEo0c/s320/20140225_004702_1024_0094.jpg
    This morning the Sun released an X4.9 flare from AR 11990 at 13 S, 78 E on the solar...
  9. Thread: Solar Max Geek Out

    by SDO
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    Solar Max Geek Out

    http://4.bp.blogspot.com/-PnQCV9f-ES0/UwuqswLTUtI/AAAAAAAAAmA/66IwHEgmFvA/s400/EVE_strip.png
    When I think about solar maximum it isn’t just sunspot number. I think about how bright the Sun has...
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    A New Room for the SDO Website Server

    This morning we are moving the computers that host the SDO website into a new server room at Goddard. The website will be offline for about 1 hour starting at 1500 UTC (10 am ET). The EVE Field of...
  11. Four Years of SDO and A New Look for our Website!

    http://1.bp.blogspot.com/-dMbPcdCZsD4/UvpQnRcplDI/AAAAAAAAAlk/RpBaflawzLM/s320/AV021+Launch.jpg
    It was a cold day in Florida when SDO was launched on February 11, 2010. The Goddard Space Flight...
  12. Thread: A Lunar Transit

    by SDO
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    A Lunar Transit

    Today the Moon passed between SDO and the Sun from 1331-1556 UTC (8:31-1056 am ET). At 2.5 hours in length, it was the longest lunar transit so far in the SDO mission. ...
  13. SDO Flight Dynamics Predicted Events for the Beginning of 2014

    The SDO Flight Dynamics team has produced and delivered the first quarter predictions. They extend to the beginning of the Fall Eclipse Season on 2014-247. The highlights are listed below:

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  14. Thread: Happy Perihelion!

    by SDO
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    Happy Perihelion!

    Today, January 4, at 1200 UTC (7 am EST), the Earth was at perihelion. This is when we were closest to the Sun in our orbit around the Sun. At perihelion, the center of the Earth was a little over...
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    Was Comet ISON Seen in AIA 4500?

    http://1.bp.blogspot.com/-6SWYI-KjNYI/UsG1NpfCKzI/AAAAAAAAAk0/8aqE_Mcyj4Q/s320/20131128_180007_512_4500.jpg
    A recent blog post at The Astronomy Stackexchange asked whether an AIA image taken during...
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    JSOC data flow has been restored

    Images are flowing again from the SDO JSOC. Many thanks to the people who worked this weekend to repair the system.



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    JSOC Disks Under Repair

    http://2.bp.blogspot.com/-OCvwSqFc0uY/UrbfUOnrIDI/AAAAAAAAAkk/VHFl-toGyTk/s320/Images_Unavailable.png
    The SDO HMI/AIA data distribution system is undergoing some emergency repairs, and image updates...
  18. Thread: It's The Solstice

    by SDO
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    It's The Solstice

    Tomorrow, December 21, 2013 at 1711 UTC (12:11 pm ET) is the winter solstice in the northern hemisphere (the summer solstice in the southern hemisphere). In the north we will have the shortest day...
  19. SDO is Almost Four Years Old and Our First Problems Arise

    SDO is now approaching four years old and we are seeing things that we have to figure out how to handle. Today I'll write about the AIA 4500 Å images.
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    Lunar Transit, December 2, 2013

    http://3.bp.blogspot.com/-OeZp8d49-NU/Up0A1nvYK-I/AAAAAAAAAj0/aW9-EwXYaLk/s320/20131202_153010_512_0094.jpg
    Today from 1503 – 1551 UTC (10:03-10:51 am ET) SDO watched the moon move across our view...
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