This is a pannable, zoomable web atlas for Atacama Cosmology Telescope (ACT)'s 6th data release (DR6). The initial view is a multifrequency view of an ACT DR6+Planck coadd, where the red, green and blue color channels correspond to ACT's f090, f150 and f220 bands respectively. Here the CMB looks like a gray fog, synchrotron sources look like red dots, dust looks light blue and tSZ dark blue.
Pan and scroll using the mouse, like on google maps. Use the keyboard to change what is shown.
On computers without a keyboard, such as a mobile phone or tablet, you can press the hamburger icon in the top right, which gives you a virtual keyboard with the buttons above. This is clunky, but works in a pinch.
You can do an object lookup by shift-cliking on a spot in the map, using NED. This can take a few seconds.
The ACT data is served as raw bytes encodes as PNG tiles, which is then decoded and turned into real images on the fly in the browser. This is why it's possible to change the color scale interactively. This works in Firefox and Chrome-like browsers, but not in Safari. In safari the ACT map will look like random blotches of color!
