Perijove 20

By Philosophia-47 on 2019-06-17 UT

Here is a report on the JunoCam images at PJ20.  Juno did not pass near famous features, but got excellent views of all latitudes.  Highlights include:

--More examples of chaotic cyclonic regions (FFRs) that may be generating new spots from their western ends, including cyclones and anticyclones and amorphous dark grey patches, in several northern domains and in the S3 domain.

--First view of the darkened region of N. Temperate Zone (N. Temperate Disturbance) which appears to be partly made up of such dark grey material.

--Specatacular panoramas of the ochre-shaded Equatorial Zone, with a major NEBs dark formation (‘hot spot’) and its large dark bluish festoon; on the small scale, a fascinating variety of clouds and streaks and waves, including previously unobserved phenomena.

--A fine view of the ‘String of Pearls’ in the S2 domain , and of the white cyclonic oblong between two of them, which closely resembles the former STB Ghost.

The report is posted as a PDF, and the full-size figures will be added in a ZIP file.  This report covers the non-polar latitudes: Part II, giving an update on the polar regions, wil be added in due course.

--John Rogers.



  1. comment by Philosophia-47 AUTHOR on 2019-06-21 09:49 UT

    Here are the full-size figures for Part II in a ZIP file.

  2. comment by Philosophia-47 AUTHOR on 2019-06-21 09:48 UT

    Here are the full-size figures for Part I in a ZIP file.

  3. comment by Philosophia-47 AUTHOR on 2019-06-21 09:47 UT

    Here is Part II of the report, covering the polar regions.

    These reports on the polar regions are sequential updates which don't contain much background explanation, but overviews of the topics are given at these links:

          'Jupiter's polar polygons':

          'Jupiter's high-latitude hazes'