Voting Round :

PJ4 Encounter

CLOSED : 2017-01-23 17:00:00
Perijove on : 2017-02-02 12:59 UT
About This Round
This will be the first time we open up the complete perijove pass for images you select. BE SURE if you have a candidate that you have entered a POI for it! We go by votes, not by sites suggested in the comments. On every pass we will take an image of the north pole and an image of the south pole. The rest are up to you! The spacecraft orientation is what we call "MWR-nadir". It is optimized for the MicroWave Radiometer instrument so the effect is to point JunoCam at the groundtrack below the spacecraft, not offset to the side.
Perijove Predict Map
About Perijove Predict Maps

Every perijove pass we have the challenge of predicting where Points of Interest will be as the different zones of the planet have different wind velocities. This map shows our effort to rotate the latitudinal zones with their different wind speeds to predict what will be under the Juno groundtrack.

Winner Selection
The votes are in! We will be able to image the top 10 in the priority set by your votes. In addition we will pick up 5 others because they are close in latitude to the top vote-getters. This assumes of course that the we have done a good job in predicting the wind speed at each latitude, and where the points of interest will be. Our top vote recipient, Oval BA, is right on the edge of where we predict we will be able to image, so we have our fingers crossed that we will get that one.

We started the process of generating image commands as soon as the voting closed. We looked first at the predictions of what time an image would need to be taken to get a particular POI. We have constraints on how closely together we can take images, because an image must be moved from the camera to the spacecraft computer before we take the next one. That means if targets are closer together in time than 90 sec we combined them. We took the time that corresponded to the higher priority target, but we will get the other POI's in the image.

We then started planning images in priority order until we used up all the available data volume.

The list of POI’s we will image in order of the votes they received is as follows, with the “+” indicating targets we combined:
Oval BA
Structure01 + Outbreak!
The big red stripe v2
Turbulence + Hotspot
The wonderful south pole
Dark spot in turbulence + White spot Z + Band transition
North pole on Jupiter + Darker skies
Cap of Jupiter
Dark spot
Jovian antarctica

These images will be available after we get "C kernels" which is a file with the spacecraft orientation as a function of time. This data is necessary for us to process the data before we put it on the website. It takes two days for us to get that data from the navigation team. Since that is a Saturday we will begin running the data through our pipeline on Monday.

Candidate Points of Interest

Voting has closed for this round. View results in the POI list below. Be sure to keep an eye on the Processing Gallery for images of POIs selected during this round of voting taken by the JunoCam!
Cylindrical map generated from data submitted via the JunoCam Planning section.

Voting Round Discussion

General discussion about this round.


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  1. comment by Bilal-85 on 2017-01-23 22:51 UT

    Too short a round. I just found out about this and I wanted to participate, only to find that voting is already closed.....

  2. comment by Schiele-38 on 2017-01-23 14:22 UT


  3. comment by Pyatnitskij-76 on 2017-01-23 13:15 UT

    Is there any way you can position the camera to get a look back of earth? Or how about two shots taken at two different time to show just how fast the spacecraft is traveling.