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Notes about cylindrical maps and perijove passes

We create cylindrical maps from the telescopic images supplied by our amateur astronomers, and we update them every 2 weeks. Jupiter has a dynamic atmosphere where winds in the belts (brown) and zones (white) go in opposite directions. Storms develop and evolve, and other atmospheric features come and go. With each new map, we move all of the POI markers — sometimes POIs disappear, sometimes they get torn apart.

In its 53 day orbit, Juno spends most of the time distant from Jupiter. The spacecraft swoops from the north to the south pole in just 2 hours, which we call a "perijove pass". That means that the images JunoCam can take are restricted to a swath of longitude – we will not be able to select from all the points of interest every orbit. On the Voting page we will say which POI's are likely to be within our field of view on a given perijove pass and you will participate in the selection of which POI's to image.

We will have a conversation on every perijove pass about which POIs to image, and the debate will be based on the threads of discussion associated with those POIs. 

General Comments

If you'd like to share commentary on Jupiter's atmosphere that is not related to a specific Point of Interest, please contribute below.


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  1. comment by Kenkellermann-27 on 2017-03-25 16:50 UT

    In conjunction with Juno's perijoves, HST has been taking observations of the aurorae. I compiled some of these into animated GIFs. Thought you folks might be interested.

  2. comment by Kenkellermann-27 on 2017-03-25 16:39 UT
    comment removed.
  3. comment by Saramanshad-42 on 2017-03-22 18:17 UT

    Hello, please tell me what moons of Jupiter Juno will fly at the time of nearest perijove

  4. comment by Candy on 2017-03-16 05:11 UT

    We will try to observe the moons but Juno's elliptical polar orbit does not bring the spacecraft very close to them.