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...

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 ...

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 P...

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, b...

The 2023-094 FDS Quarterly (Long-Set) Predicts have been delivered. They include events through 05 Nov 2023. The highlights are: 20 May ...

Tomorrow, June 29, 2022, the Moon will transit the Sun between 0519 and 0554 UTC (01:19 and 1:54 am ET). At its peak the Moon will cover abo...

January 13, 2021, will see the Moon pass across the face of the Sun between 0556 and 0625 UTC (00:56 and 1:25 am ET). Here's a movie of ...

Just two weeks ago the Full Moon and Mars had a bright conjunction in the night sky. Tomorrow the New Moon will glide between SDO and the Su...

Yesterday, from 6:00--8:33 pm, the Moon moved between SDO and the Sun. These lunar transits happen a few times each year. Here is the FOT ...

SDO will experience a lunar transit on September 28, 2019. Here is a movie from the Flight Operations Team that shows SDO, the Sun, and th...

The long lunar transit SDO saw last night was quite a show. Here's a movie in AIA 171 Å from March 6, 2000 UTC, to March 7, 0400 UTC (Ma...

The previously scheduled station-keeping maneuver is delayed until next week (February 27). It's time to talk the lunar transit of March...

Nine years ago today, at 10:23 am ET, SDO rose into the sky atop an Atlas V 401 launch vehicle. Since that day SDO has returned over 350 mil...

SDO will experience a lunar transit on November 7, 2018. Here is a movie from the Flight Operations Team that shows SDO, the Sun, and the ...

SDO will experience a double lunar transit on September 9 and 10, 2018. Here is a movie from the Flight Operations Team that shows SDO, th...

It was a lovely fall day in Maryland. A perfect day for a lunar transit! Here's an AIA 171 Å image showing the Moon blocking a slice o...

The wobbling images tell us that another round of calibration maneuvers has started. Today we have the EVE Field of View and AIA/HMI flatfie...

The next set of SDO maneuvers and other niceties has been released. July 5, 1818 UTC 1320-1920 UTC (10:20 am ET - 3:30 pm ET) - EVE FOV a...

SDO had another visit from the Moon today, as it passed between SDO and Sun. Here are two AIA 193 images showing the Moon moving onto and r...

Here is a video showing the lunar transit SDO will see on August 21, 2017. While some in the United States will see a Total Solar Eclips...