"ACT2 DR4 CMB" progressive survey

This Web resource contains HiPS(*) components for ACT2 DR4 CMB progressive survey.
  • Label: ACT2 DR4 CMB
  • Type: HiPS image
  • Best pixel angular resolution: 25.77"
  • Max tile order: 4 (NSIDE=16)
  • Available encoding tiles: png fits
  • Tile size: 512x512
  • FITS tile BITPIX: -64
  • Processing date: 2021-04-12T09:58Z
  • HiPS builder: Aladin/HipsGen v11.037
  • Coordinate frame: equatorial
  • Sky area: 11.654% of sky => 4807°^2
  • Associated coverage map: MOC
  • Original data access template: metadata.xml
  • Property file: properties
  • Base URL:
This survey can be displayed by Aladin Lite (see above), by Aladin Desktop client (just open the base URL)
or any other HiPS aware clients.
(*) HiPS is a recommended International Virtual Observatory Alliance standard:HiPS REC. The HiPS technology allows a dedicated client to access an astronomical survey at any location and at any scale. HiPS has been invented by CDS-Université de Strasbourg/CNRS (2015A&A...578A.114F). It is based on HEALPix sky tessellation and it is designed for astronomical scientifical usages (low distorsion, true pixel values...).