DESCRIPTION OF THE IMAGES:


- a short report of my recent work -

Jupiter was observed at Calar Alto (Spain) during the impact week in the near infrared wavelength band. On these images an artificial grid is fitted, taking into account the subearth point, the apparent radius, the flatness of the planet and so on. (see Orig.png)

Once the grid is established, the image structures are enhanced by the unsharp masking method:

The image is smoothed by convolution with a matrix kernel and then subtracted from the original frame. This works like a lowpass or a first deviation. High spatial frequencies are enhanced. (see unsh_msk.png)

When this is done, a projection to a cone takes place. The cone is touching the planet at the averaged impact latitude at -43.5 degrees in order to minimize distortion.

The images

   16_22_08.png, 16_22_38.png, 17_19_53.png, 17_20_25.png
   18_22_02.png, 18_20_11.png, 18_21_36.png, 18_21_46.png
   18_22_45.png, 19_19_52.png, 19_20_06.png, 19_20_19.png
   19_22_18.png, 20_19_31.png, 20_21_28.png, 21_19_38.png
   21_21_39.png and 22_20_00.png
show these projections.
The filenames have the form date_hour_minute.

Please note:


Muenchen, 24.8.95
Johannes Babion