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  1. Launching a Sounding Rocket to Help Calibrate NASA's SDO

    Tomorrow at high noon Mountain Time, the SDO EVE calibration sounding rocket will launch from White Sands Missile Range in New Mexico. It is only 15 minutes of flight with 5 minutes of solar viewing,...
  2. Thread: DDS offline

    by SDO
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    DDS offline

    The SDO DDS went offline at about 2247 UTC (6:47 p.m. ET). The SDO Flight Operations Team is looking into the outage.



    More...
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    IRU Calibration Maneuver is Complete

    Today's IRU calibration Maneuver has finished. Here is a short movie showing what SDO did. We first pointed the high-gain antennas away from the Earth (that's why we didn't receive any science data)....
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    IRU Calibration Maneuver

    SDO will perform an IRU Calibration maneuver on May 13, 2015 from 0400 UTC (Midnight) to 1200 UTC (8 a.m. ET). The spacecraft will perform a series of roll, pitch, and yaw maneuvers designed to...
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    Momentum Management Maneuver #22 Complete

    SDO executed Momentum Management Maneuver #22 today at 1815 UTC (2:15 pm ET). We used 48.8 gr (1.72 oz) of propellant to change the reaction wheel speeds to the desired rotation rates. Science data...
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    SDO 171 and 304 images get brighter

    We've adjusted the settings on the AIA 171 ┼ (yellow) and 304 ┼ (orange) images - the Sun isn't getting brighter, the settings have been changed so features show up better. The image below shows the...
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    Happy 5th Birthday to SDO Science Data!

    Today is the 5th birthday of SDO Science Data. On May 1, 2010, SDO was commissioned as a NASA observatory and began sending science data to scientists and the public. We have watched Solar Cycle 24...
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    Spring Maneuvers and Beakman

    SDO has performed maneuvers the past two Wednesdays. The EVE cruciform on April 8 and the field of view rasters on April 15.

    Today SDO was featured in Beakman Jax in the Washington Post and...
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    SDO is Back in Science Mode

    SDO returned to science mode at 1534 UTC (11:34 a.m. ET). The high-gain antennas were configured for the remainder of day today through the high-gain antenna handover tonight. The HMI roll maneuver...
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    SDO is Almost Back to Normal

    SDO is now pointing at the Sun with one high-gain antenna returning science data. The other high-gain antenna is pointing in the wrong direction and engineers are working on the best way to move it...
  11. Thread: SDO Offline

    by SDO
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    SDO Offline

    Last night at 0551 UTC (0152 a.m. ET), as SDO began the scheduled roll calibration maneuver, the ACS went into Sun-acquisition mode. SDO remains in that mode while the engineers look for the cause....
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    Data Delivery System in Maintenance Mode

    The SDO Data Delivery System (DDS) is the interface between the antennas that receive the SDO data and the science data centers. At this time we are performing maintenance on the DDS and hope to have...
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    How Loud is the Sun?

    Tuesday morning was our last eclipse of the Spring 2015 eclipse season, so SDO is back to solar data 24/7.
    A recent post on reddit.com asked whether the inside of the Sun would be the loudest place...
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    The First X-class Flare of 2015!

    Active Region 12297 was the site of two M-class flares yesterday and an X2.1 starting today at 1611 UTC (12:11 p.m. ET). AR 12297 is in the southern hemisphere of the Sun.

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    Spring 2015 Eclipse Season has Begun

    http://2.bp.blogspot.com/-W_NVhTiX0BA/VO0Q9LHG-1I/AAAAAAAAAv8/Vir1qriYEcU/s320/20150223_071148_512_0171.jpg
    The spring 2015 eclipse season has begun! Yesterday at 0711 UTC (2:11 am ET) the Earth...
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    SDO is in the News!

    http://4.bp.blogspot.com/-xpll_-M38f8/VOOdfbNlLjI/AAAAAAAAAvs/IYA0CDhZ6xc/s320/20150215__SJM-SOLARFLARE-0216~2.JPG
    The San Jose Mercury News had a front-page story about predicting solar flares....
  17. SDO's Fifth Anniversary and DSCOVR's New Beginning

    SDO's 5th anniversary of launch was celebrated with the release of a Five year video by the GSFC Office of Communications.



    We also attended the opening of the Solarium exhibit that features...
  18. Thread: Five Years of SDO

    by SDO
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    Five Years of SDO

    http://1.bp.blogspot.com/-FLDCZZpHLkw/VNps6oXvq3I/AAAAAAAAAvc/0yBrY5IPqYg/s320/SDOspectrum5th.png
    It is hard to believe that the SDO launch was 5 years ago! Tomorrow, February 11, is the fifth...
  19. Thread: Today's Maneuvers

    by SDO
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    Today's Maneuvers

    http://4.bp.blogspot.com/-ODOJnS6Sl6g/VNJLt6nuH0I/AAAAAAAAAvM/aqTd-Hwa6cM/s320/20150204_142256_512_0193.jpg
    Today, February 4, 2015, SDO performed two maneuvers, the EVE FOV from 1315-1557 UTC...
  20. Celebrate the "Year of Light" With a Beautiful SDO Image!

    http://3.bp.blogspot.com/-14U1pDfeets/VM_c1prLGBI/AAAAAAAAAu8/OGbyxtXmjrw/s320/latest_512_0193-2.jpg
    UNESCO has declared 2015 as the International Year of Light. A story on CNN showed NASA images...
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