Why was an image deleted from NASA online data of the Magnetosphere?

Dateline March 12, 2012. Something odd and strange.. gone from public view. A few handy folks online hit the data before it was hidden. And they show the appearance of the Magnetosphere reversing…? A cosmic ray burst? What exactly happened on this day is unknown right now.. but much speculation exists over why an image was hidden.

[youtube http://www.youtube.com/watch?v=aUeqkwzykM4]

And another video explaining why the anomaly is anomalous..

[youtube http://www.youtube.com/watch?v=-J2GyUcuAfM]