JunoCam at PJ26

This is our report on the JunoCam images at Perijove-26 on 2020 April 10. Highlights were as follows:

--Spectacular cyclonic chaotic regions in most of the northern domains.

--A methane-band image of such a chaotic region inthe NNTB, showing that orange as well as white strips are at high altitude.

--A closeup of a white ‘bay’ in the NEBn, revealing enigmatic amorphous cloud texture.

--In the EZ, more widespread mesoscale waves than ever before seen by JunoCam, on an intricate background of pale ochre, white and blue-grey streaks.

--An excellent view of a very interesting sector of the S. Temperate domain, in which two long-lived structured sectors have just collided following oval BA, while a new structured sector may be arising preceding oval BA.  Features include STB segment A which is highly turbulent; the p. end of the STB Spectre which may have dissipated; and a new dark spot in the white STB, which is a cyclone with a reddish cloud cover.  Animations of maps will enable winds to be measured in all these structures.

--In the S4 domain, a bright outbreak in a pale reddish cyclonic oblong, a small-scale version of the STB Spectre in 2018.

--A high-amplitude wave in the S6 jet, coinciding with one in the edge of the South Polar Hood.

--The south polar polygon of cyclones is probably pentagonal again, but its centre is further from the pole than previously observed.

The text is in this PDF:     PJ26-report-JHR_text.pdf

Miniature copies of the figures are in this PDF:    PJ26-report-JHR_minifigs.pdf

Full-size figures are in this ZIP file:     PJ26_report_Figures.zip

Seven animations of JunoCam maps (Four pairs of maps covering the S. Temperate domain, one of the S4 domain, a triplet of south polar maps, and a blink showing the shadow of an inner satellite on the EZ) are in this ZIP file:     PJ26_report_Animations.zip

Below are (Fig.7) an excerpt from the global map, and (Anim-D) part of the S. Temperate map animation.