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    HMI Roll Maneuver Today

    SDO will perform a roll maneuver today starting at 1630 UTC (12:30 pm ET). The Sun may appear to rotate in images taken during this maneuver. The roll angle will be removed in the science data.

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    More Calibration Maneuvers

    Today SDO will perform the EVE Field of View maneuver at 1315 UTC (9:15 a.m. ET) and the HMI/AIA Flatfield maneuver starting at 1630 UTC (2:20 p.m. ET. While the maneuvers are running the SDO science...
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    EVE Cruciform Tomorrow; An SDO Cover Story

    Tomorrow, July 1, 2015, SDO will perform an EVE cruciform calibration material. From 1800-2230 UTC (2:00-6:30 p.m. ET), SDO will look to and fro and up and down to allow EVE scientists to keep track...
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    Temporary Data Outage

    The SDO data system is undergoing an upgrade today, and there will be no images available until the upgrade is completed. We're very sorry for any inconvenience.


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    A Flare, A CME, A Storm!

    http://4.bp.blogspot.com/-hz8nK4H-pjM/VYlXSFkOwyI/AAAAAAAAAyE/7DxD3aXILS8/s320/iswa_download.png
    Yesterday wee saw an M6.5 flare from active region 12372 followed by a filament liftoff, which turned...
  6. SDO/EVE Calibration Rocket Did Not Follow Planned Trajectory

    The SDO EVE calibration rocket was cut down by range safety about 16 seconds after launch. The rocket did not fly the planned trajectory and was cut down when it appeared that it could fly out of the...
  7. 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,...
  8. 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.



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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...
  17. 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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