Welcome to Discussion
Join the Mission Juno virtual imaging team by helping us to identify what images to capture with JunoCam now that we're at Jupiter!
At each perijove pass, we'll ask you to start voting on which POIs you're most interested in. In the meantime, please participate in the general conversation, comment on POIs identified by the community, or suggest a new feature that hasn't yet been discussed yet.
At each perijove pass, we'll ask you to start voting on which POIs you're most interested in. In the meantime, please participate in the general conversation, comment on POIs identified by the community, or suggest a new feature that hasn't yet been discussed yet.
Explore the map below
Click on POIs in the map or browse the POI list for details and discussion threads!
map : 2018-08-28 UT
Cylindrical map generated from data submitted via the JunoCam Planning section.
General Comments
313 Comments
Can someone point me towards algorithms for map-projecting RAW JunoCam data onto equirectangular maps? Anyone knows how this is done?
Greetings -
I have tried numerous times to bring out the intricacies of the Jovian cloud forms from the raw images, such as the nimbus-like cloud tops and appearance of layering. I just cannot find it there in the 1600 X 1600 pixel images provided for the general public's use. If I may respectfully use as an example, the images of Mr. Eichstadt or Mr. Gill show unprecedented details and sharpness. I have tried to replicate their works using a rather ancient version of Photoshop, and I believe it is still capable enough to produce the basics. I have to suspect that there are other forms of raw images or data from which are somehow accessible, but not to the public. Am I correct?
The raw images are indeed posted, but they are much more difficult to use. When you go to download an image it is the "striped" version on the far left. That is where Mr. Gill and Mr. Eichstadt start. Most people do not have the sophisticated image processing tools they have, which is why we post the other (albeit lower resolution) images for people to use.
Dear JunoCAM Team, NASA, MSSS, can we work out and discuss the Colors a bit more here on the Discussion section?
As far as I understand scientific terms, what the JunoCAM Tool is showing are approximately raw; TRUE; realistic Colors of Jupiter. It is showing the Reflected Light in Colors from the planetary surface at the right orbital distance from the Star...
When the Citizen Scientists and Artists are enhancing; enriching; sharpening the raw images they are showing a '(NATURAL COLOR)' or an Image of Jupiter as it should look at the Earth Orbital Distance from the Star in an approximate Human Eye Resolution in Pixels... ?
The JunoCam images that have been processed to show Jupiter in true color should be comparable to what you would obtain if you could orbit Jupiter in a spaceship and photograph it with a typical camera (or even a phone). Even though Jupiter is five times farther from the Sun than the Earth is, the sunlight at Jupiter easily bright enough for typical consumer-type cameras. It's roughly comparable to an overcast/cloudy day on Earth.
When processing the raw JunoCam images into true color images some corrections have to be made to the original, raw data. Otherwise you get orange or yellow colored images which is not at all like Jupiter's color. The correction can be done using true color Earth-based Jupiter images as a reference, or by using Jupiter's spectrum to compute the correct overall color. Also some areas on Jupiter are known to be approximately white and these can be used as a reference.
The resolution of the JunoCam images is rather similar to the resolution (or resolving power) of the human eye - maybe slightly lower. This is different from most other spacecraft images which usually have a much narrower field of view than JunoCam (and therefore higher resolution). This means that what you see in a true color JunoCam image should be rather similar to what you would see with your own eye's from the spacecraft's location, both in terms of color and resolution.
Hello.
Can you please tell me how far north in latitude the image at
https://photojournal.jpl.nasa.gov/catalog/PIA21641
shows? It's centered on Jupiter's south pole, but I'd like to know the northern extent.
Thanks so much,
Michael E. Bakich
Senior editor / Photo editor
ASTRONOMY magazine
21027 Crossroads Circle
Waukesha, WI 53187
262.798.6612
mbakich@Astronomy.com
show the 4 inner moons of Jupiter
Metis,
Adrastea,
Amalthea
Thebe.
JunoCAM is a scientific tool that is specially Designed; Calibrated and Adjusted to take high resolution images from a certain Space altitude while orbiting around Jupiter. Even if is directed to some of those tiny objects they perhaps wont be focused and will be barely visible in some pixel size. It will be not possible to clear; sharpen or focus them with any of the available software. You must know that I am just an amateur and not a specialist or professional, so you might need an assistance from one of those.
The inner moons are too tiny for us to resolve - they are only about a pixel in size.