Notes about cylindrical maps and perijove passes
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 close-up images JunoCam can take are restricted to just a swath
of longitude, not the entire globe.
JunoCam points out along the solar arrays, and for most perijove passes
the solar arrays are oriented to the sun, so JunoCam is pointing 90 degrees
from the sun.
As
time goes on Juno’s orbit is moving around Jupiter. The most distant point of the orbit is moving
to Jupiter’s night side. Perijove
(“PJ”), the closest point in the orbit, is moving more to the sun-side, which
impacts JunoCam because this moves Jupiter off to the side of our field of
view. A simple comparison of the images
collected at PJ9 to PJ10 in the Processing gallery shows how the geometry is
changing the shape of the images.
For those of you who have been participating since the
beginning, we initially used this page to identify Points of Interest
(POIs). We would then vote on which
POI’s to take pictures of on any given perijove pass. This was a concept that we developed for
Juno’s 14-day mission plan. The
decision to stay in a 53-day orbit means that the viewing geometry changes more
and this impacts our ability to predict what will be in JunoCam’s field of
view. (To see the POI’s that were
selected in the past you can go to the Voting page.)
General Comments
332 Comments
I'd like to see these spots:
Whispy dark cloud -7.452°, 338.976°
Beethoven-60 69.786°, 83.7°
Would love to have an explanation of planning and work that went into the planning and acquisition of perijove 27 image 40 where Io is captured in partial occultation by Jupiter.
We got amazingly lucky! The timing of this image was not deliberate...
Hello! I am new to this so, can you explain me?
Hello everyone! This is my first comment/post on here, so please bear with me as my ADD can get the better part of my thoughts at times. It was recommended to me to post here after seeing results from a fluid dynamics project I am working on and share pictures of these observations.
Quick backstory of why I am here: I have been performing some random fluid experiments using a "cobbled together" rheoscopic fluid in bottles with the intent of monitoring convection and rotation to find evidence demonstrating proof-of-concept of an idea I have– to share with those who study severe weather/mesocyclones. The point is to observe flow dynamics without atmospheric interference, a.k.a. condensation. One day I decided to record a little "fun" with exaggerated manipulation with the bucket I use to discard contents of some of these bottles. The video recordings were mesmerizing to watch– as the flow patterns constantly evolved and changed. A single input of rotation lasts 7-10 minutes. I have even been able to induce one specific condition- one that is seen as transverse rotating cirrus clouds observed with tropical systems and supercells.
Now to get to the point. It was noticed that quite a number of these patterns are very close to many seen in the pictures taken by Juno of Jupiter's atmosphere. Perhaps further analysis of these patterns might help with understanding storm/rotation dynamics seen on Jupiter? I'd love to upload some of this video, but I cannot seem to do so without compression/losing the fine detail that shows what is happening (any advice would be greatly appreciated). So for now, here are some screenshots from some of those videos. I have edited the hue/saturation on some to highlight different features...and so that they don't all look the same.
With that said, if this catches the attention of anyone, I will be more than happy to share everything.
https://anonymousnamelss.imgur.com/all/
Apologies for the incorrect link to the images. Here is the correct one.
https://imgur.com/user/AnonymousNamelss/posts