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The SDO website file server has been replaced and the data are being restored from backup. We hope to get all of the processing scripts and associated software installed in the next couple of days....

There has been a temporary outage of the browse data on the SDO Website. Science data from all three of the instruments are still available through the science data access points:

- EVE data
-...

The new foundation model using SDO data has been released! The Surya Heliophysics Foundation Model was trained on nine years of SDO data, and will improve predictions of solar activity such as ...

SDO's 31st eclipse season begins at 07:21 UT on July 10, 2025, and will last until August 7. SDO's orbit is geosynchronous, inclined relative to the Earth's axis so most of time SDO has a 24/7 view...

Solar flares are classified using the X-ray brightness (see an explanation here), and "X class" flares are the strongest. The sunspot and magnetic active region complex that produced many M-class...

SDO will see 4 lunar transits between April and July 2025. Two look like the Moon is just brushing by the Sun and one is pretty nice looking.
There are lunar transits on April 27, 2025 and April 28,...

At 12 noon PT, 4 Feb 2025, the HMI/AIA JSOC at Stanford has resumed normal data services. A small fraction of the data files were lost and are being restored from a tape backup.
Congratulations to...

The JSOC repair continues. This week we have started serving 15 min cadence images from AIA and HMI for Space Weather operators and others at the SDO website https://sdo.gsfc.nasa.gov. Stanford...

A cooling water line burst in the Stanford building housing the SDO HMI JSOC yesterday. Several inches of water were in the JSOC room. As of this morning it appears the flooding has been drained but...

SDO images look partial today as we are off-pointed to look for the tail of Comet C/2025 S1 (ATLAS) as it goes by perihelion. This is a Kreutz comet with a perihelion distance of 1.7 Rsun (0.7 Rsun...

A cable cut in New Mexico is causing some of the SDO telemetry to be delayed to the science teams. As a result, the teams do not know the roll angle of SDO and the images appear to be rotating as we...

Today is the Summer Solstice, the longest day in the Northern hemisphere and the shortest day in the Southern. That officially happens at 20:50 UTC (4:50 pm ET). This solstice is the first day of...

On April 8, 2024, people along a path from Mexico thru the USA and into Canada were treated to a total solar eclipse. SDO waited until much later in the day (actiually the next day in the UT...

Today SDO will execute the EVE Field of View (at 1315 UTC, 9:15 am ET) and the HMI/AIA Flatfield (at 1630 UTC, 12:30 pm ET) calibration maneuvers. During these maneuvers SDO science data may be...

SDO will execute Momentum Management Maneuver (Delta-H) #49 today. Between 1830 UTC (2:30 pm ET) and 1910 UTC (3:10 pm ET) science data may be missing or blurred.

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On April 8, 2024, a large swath of North America will enjoy a Total Solar Eclipse from Mazatlán up through Texas to Maine and the Maritime Provinces of Canada. Although those along the path of...

SDO will execute Station Keeping maneuver #28 today from 2315-2400 UTC (6:15-7:00 pm ET). During a maneuver SDO science data may be missing or blurred. These maneuvers are needed to maintain SDO's...

Between 0557--0612 UTC (01:57--02:12 ET) on 18 Jun 2023, SDO is experience a brief lunar transit. The Moon will cover about 3% of the Sun, but because it will pass over the top diode SDO will leave...

All is Go for the launch of the SDO EVE calibration rocket (NASA #36.389) on May 3. The EVE Team has approvals from NASA, WSMR (White Sands Missile Range, where the flight will occur), and the Navy...

The SDO Team will power cycle Inertial Reference Unit #2 (IRU-2) today. These cold starts are used to maintain the IRUs and ensure their longevity. The spacecraft will execute a series of off-point...