3) NORTH POLAR CYCLONES MAPS, PJ41-PJ72

In addition to the north polar region maps posted above, we provide full-resolution maps of the latitudes >70 or 75°N, to show the circumpolar cyclones (CPCs).  As Juno’s perijove drifted northwards, the resolution on the northern CPCs has increased; these maps are provided at 60 px/deg or, more recently, 120 px/deg. 

Strong enhancement has been applied to bring out maximum detail in the terminator region.  Some of the maps have also been sharpened by blending with a small proportion of a “high-pass” version produced by G.E. (filtered for high spatial frequencies).  In addition to the unlabelled maps, our individual perijove reports often included copies with the CPCs labelled, and combined maps from pairs of perijoves to show the complete pattern of the CPCs; a few of these are also included in these ZIP files.  There were no images of the CPCs at PJ48, PJ61, or PJ71.

The changes in the northern CPCs during the mission have been described in our perijove reports, and in EPSC presentations:
Rogers JH, Eichstaedt G, Hansen CJ, Orton GS & Momary T (2021)  ‘Behaviour of Jupiter’s polar polygons over 4 years’.   EPSC Abstracts Vol. 15, EPSC2021-57.  https://doi.org/10.5194/epsc2021-57.

Brueshaber S, Williams I, Rogers JH, Eichstaedt G. Orton G, Hansen C, Fletcher LN & Bolton S (2025), ‘Morphological and Positional Changes in Jupiter’s Northern Polar Cyclones’.  EPSC Abstracts Vol. 19, EPSC-DPS2025-711.

PJ41-PJ60_N-polar-CPCs-maps_75N
PJ62-PJ72_N-polar-CPCs-maps_75N