This is a quick rendition of Jupiter at 5.1 microns, with the GRS front and center, from NASA’s Infrared Telescope Facility using SpeX last night…dodging clouds.   
We hope to get Juno’s PJ13 longitude tomorrow morning.  Then I dash to the airport to pursue even longer wavelengths from Subaru.     
Needless to say, this is a very unusual configuration around the GRS.   
There is some evidence for the beginning of EZ brightening in a very narrow and faint band.


[Glenn S. Orton : [California Institute of Technology,USA]