Archive for September, 2011

Delay in new SDO and STEREO data

You may have noticed a delay in the availability of new SDO images. We are currently troubleshooting the issue with the pipeline we use to obtain near real time images of the Sun. We are also currently developing an alternate capability that will provide you with at least some images at a lower cadence and a lower spatial resolution.

Our pipeline that provides the most recent high quality STEREO data is also temporarily unavailable. We took that offline to diagnose issues in the pipeline that are causing it to crash unexpectedly. Also, we are fixing an image processing issue whereby some COR2 images appeared as a solid white annular region.

We apologize for the interruption to our services, and for any inconvenience this may cause. We are working hard to get these images to you.

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User highlight: spiraling AIA 304

Helioviewer user otraLoly was first to share this rather spectacular looking event in SDO AIA data yesterday:

As the event progresses, you can clearly see that the material is spiraling around as it slowly moves away from the Sun’s surface. It may be associated with an ejection seen in LASCO C2, although the data here is as yet incomplete. Other users have also shred movies of the same event: here is one shared by danielchangck:

and another movie shared by papavalium:

If you find something interesting, please let us know by either emailing us at, or by sharing it on via YouTube.


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Amazing aurora, as seen from the International Space Station.

This amazing video of the aurora was taken from the International Space Station:

Aurora are caused by the interaction of solar-sourced particles with the Earth’s magnetic field and atmosphere. During times of geomagnetic storms (as has happened recently) the aurora get pushed towards the equator, leading to many more people being able to see them.

This video, and many others taken from the International Space Station can be found here.

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Service resumed

We are very pleased to announce that Helioviewer Project services are now back online.

This means that, JHelioviewer, and other applications that use Helioviewer Project services are now available and should be working as before. If you encounter any problems with any of our services please let us know. We are currently filling in missing data from 2011/08/05 through to 2011/09/16, and we ask for your patience during the next couple of weeks as we fill in the gaps. If you notice any gaps, please let us know, as we are eager to have as complete a record of solar activity as possible.

We do apologize for the interruption in service. This was caused by two distinct and unfortunately simultaneous hardware malfunctions on our server that took a long time to repair. We are looking exploring options that will ensure such a long break in service does not happen again. We are back now, and we hope you continue to explore your heliosphere!

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