Images from ECHO

[Velocity Images][Difference Images][Animations][ECHO Homepage]

Doppler Image ECHO Velocity Images
These Velocity images pictorially show the radial (line of sight) velocity of the sun across its entire surface. The gradient from left to right is due to the sun's rotation, which is towards the observer at the left limb and away from the observer at the right limb. The mottled surface is due to solar flow patterns such as granulation and supergranulation, as well as the oscillations.

The time stamp in the lower left corner is DDThh:mm in UTC.

12:30 Doppler Image 12:31 Doppler Image 12:32 Doppler Image 12:33 Doppler Image 12:34 Doppler Image 12:35 Doppler Image 12:36 Doppler Image 12:37 Doppler Image 12:38 Doppler Image 12:39 Doppler Image
Velocity Image ECHO Difference Images
These images are obtained by taking the difference between two successive Velocity images. This removes the signal from the solar rotation and the long lived flow patterns and allows easier visualization of the oscillatory signal. The darkness/brightness of each pixel represents how fast that part of the sun is moving towards/away from the observer.
12:31 Velocity Image 12:32 Velocity Image 12:33 Velocity Image 12:34 Velocity Image 12:35 Velocity Image 12:36 Velocity Image 12:37 Velocity Image 12:38 Velocity Image 12:39 Velocity Image 12:40 Velocity Image
ECHO Velocity Animations
These animations are much like those produced by time-lapse photography. As you watch the time stamp you will notice several minutes are displayed every second.

Velocity Animation 344 kB Animated GIF (10 frames)

Velocity Animation 47 kB MPEG (10 frames)

ECHO Difference Animations

Difference Animation 344 kB Animated GIF (10 frames)

Difference Animation 47 kB MPEG (10 frames)

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