SDO | News & Resources

SDO Mission Blog

This is the Solar Dynamics Observatory Mission blog. It will consist of mission status, news, and event updates.


SDO will execute momentum management maneuver (MM) #40 today starting at 1910 UTC (2:10 pm ET). The maneuver should take about 30 minutes. During a maneuver SDO science data may be missing or blurred. These maneuvers are needed to keep SDO accurately pointed at the Sun and taking data.
From 2100 UTC (5:00 pm ET) on April 28, 2021, to 1100 UTC (7:00 am ET) on April 29, 2021, SDO will off-point from the center of the Sun. This will support the PSP perihelion passage at 0900 UTC, April 29, 2021.

This is an opportunity for you to examine the middle corona that is not normally seen in the AIA field-of view. The exposure time will be increased, there will be fewer AIA images, and lossless compression will be used to download the images. That means you will be able to bring out details in the middle corona by co-adding frames.

The SDO website is undergoing some maintenance today, April 27, 2021. Some site features and pages will be unavailable during this time. We apologize for the inconvenience. 
SDO will perform the EVE Cruciform Calibration Maneuver today from 1300 UTC (9:00 am ET). During the maneuver science data may be missing or blurred.

You are Invited to Contribute your Solar Research to a Topical Collection of Solar Physics on “Celebrating A Solar Cycle of Discovery with SDO”

 

We solicit manuscripts on this general subject for inclusion in a Topical Collection of Solar Physics.  The deadline for submission of statements of interest (SOI) with a tentative title, abstract, author list, and three suggestions for referees, via e-mail to solar.cycle.with.sdo@gmail.com is 15 June 2021, and the nominal deadline for manuscript submission is 22 October 2021.

This Topical Collection is an outgrowth of the “SDO 2021 Science Workshop: A Solar Cycle of Discovery,” which was held as a series of virtual workshops 12 February – 15 April 2021 (http://sdo2021.lws-sdo-workshops.org). This Topical Collection is not a conference proceeding, and it is not limited to research presented at the workshop. All submissions must be complete original papers that meet the regular quality requirements of the Journal. The Topical Collection will start off with several invited reviews to summarize the subject and frame the work in the research papers which follow. Please consult https://link.springer.com/journal/volumesAndIssues/11207?tabName=topicalCollections for recent Topical Collections.

Topics to be included in the Topical Collection include:

·         Subsurface Flows, the Dynamo, and the Solar Cycle

·         Magnetic Flux in the SDO Era: From Emergence to Eruption

·         Vector Magnetic Field: Progress and Prospects

·         Energy and Mass Transfer Between the Corona and the Chromosphere

·         Short-term Solar Variability

·         Phun with Photons: Response of atmospheres to EUV variability

·         The SDO Corona and Beyond

·         SDO for Space Weather: Science and Applications

For further information, and submission of statements of intent, please contact John Leibacher (Solar Physics editor: john.leibacher.sola@gmail.com) or Dean Pesnell (guest editor), Ryan Milligan (guest editor), and Shin Toriumi (guest editor) at solar.cycle.with.sdo@gmail.com.

SDO will execute two calibration maneuvers on April 7, 2021. The EVE Field of View (FOV) maneuver will begin at 1315 UTC (8:15 am ET). The HMI/AIA Flatfield maneuver will begin at 1630 UTC (11:30 am ET). During a calibration manuever the SDO science data may be missing or blurred. HMI science data is only available when SDO is in Sun-pointing mode.
Here is an AIA 171 Å picture from today's maneuver. The straight edges on the left and top show that SDO is pointed slightly away from Sun center. The image is re-centered by the processing software.
SDO was launched 11 years ago on February 11, 2010. It was a beautiful launch into mostly clear skies over the Kennedy Space Center in Florida. SDO has watched almost all of Solar Cycle 24, and now the beginning of Solar Cycle 25. Scientists have used SDO data to publish over 5000 papers on how the Sun works, emphasizing the creation and destruction of the solar magnetic field. Here's a movie of the Sun in AIA's 193 Å passband on February 11, 2021, showing a large filament (dark line in the southern hemisphere) just outside of a dark coronal hole. There's a bright region to the left of the filament that sits over a magnetic field concentration that never formed a sunspot. It looks like Solar Cycle 25 will be as much fun as SC 24!