Great Red Spot changes (updated)

2019-08-13 19:07 UT
Credit : NASA / JPL-Caltech / SwRI / MSSS / Björn Jónsson © cc nc sa
Submitted By : Bjorn_Jonsson

So far the Great Red Spot (GRS) has been well imaged during five of Juno's perijoves (there are additional perijoves where lower resolution images were obtained). This is a montage of five map-projected GRS mosaics processed from images obtained during these perijoves and is an update to an earlier version (here perijove 21 has been added). At the time of this writing perijove 21 is the most recent perijove. The mosaics show how the GRS and nearby areas have changed over the course of the Juno mission. The mosaics cover planetographic latitudes 4.7 to 38 degrees south.

The resolution of the source data is highly variable and this can be seen in some of the mosaics. The viewing geometry also varies a lot. Some of the images were obtained almost directly above the GRS (in particular some of the perijove 7 images) whereas other images were obtained at an oblique viewing angle (in particular the perijove 17 images).

These are approximately true color/contrast mosaics but there may be some inaccuracies in areas where the original images were obtained at a highly oblique angle. The contrast is also lower in these areas.