Wednesday, February 12, 2020

Station Keeping Maneuver #20 Today

SDO will execute Station Keeping Maneuver #20 today at 2230 UTC (5:30 p.m. ET). From 2200 to 2250 UTC (5:00-5:50 p.m. ET) science data may be missing or blurred. Station-keeping maneuvers are designed to keep SDO’s orbit in the right place when the spacecraft travels through the geostationary belt twice each day.

Tuesday, February 11, 2020

Happy Anniversary SDO!

Ten years ago, 11 Feb 2010, SDO rose majestically into the Florida skies. Since that day we have taken and recorded over 350 million images of the Sun.
Here's the image closest to the launch time, a lovely 211 Å image showing a large coronal hole over the South Pole and a smaller one over the north. Pretty typical solar minimum portrait!

Over the next year, Solar Cycle 25 will become more and more apparent. SDO will be there, observing the Sun and its magnetic field.

Congratulations to the SDO teams and all the people who enjoy our data!

Wednesday, January 8, 2020

Calibration Maneuvers Today

Today from 1315-1915 UTC (8:15 am - 2:15 pm ET) SDO will perform the EVE Field of View and HMI/AIA Flatfield calibration maneuvers. Science data recorded during these maneuvers may be missing, incomplete, or blurry.

Monday, January 6, 2020

Happy Perihelion!

On January 5, 2020, at 0547 UTC (2:47 am ET) the Earth reached perihelion in its orbit around the Sun. At that time the Earth was 147,091,144 km (91,381,199 mi) from the Sun. The Earth's will reach aphelion, the point in our elliptical orbit furthest from the Sun, on June 4, 2020. Enjoy the closest of our favorite star, the Sun!