Images from the "Akatsuki" orbiter revealed something similar to jet stream winds in the low and middle cloud region, which extends from 45 to 60 kilometers in altitude. The wind speed maximized near the equator. In September 2017 JAXA scientists named this phenomenon 'Venusian equatorial jet'. They also published results on equatorial winds at cloud-top level by tracking clouds on the UV spectrum. A significant result in 2018 is the appearance of thick clouds of small particles near the transition between upper and middle clouds, what was described as a "new and puzzling morphology of the complex cloud cover." By 2017, the science team published 3D maps on the Venus atmosphere structure. The physical quantities retrieved include the pressure, the temperature, the vapor density, and the ionospheric electron density and their variations. By the year 2019, the first results about the morphology, temporal changes and the winds at the middle clouds of Venus were published and merited the cover in Geophysical Research Letters, reporting unexpectedly high contrasts that might indicate the presence of absorbers like water.