ACS Mosaic Information


The ACS v1.3 mosaic was generated from version 1.3 of the COSMOS ACS data, using IRSA's Mosaic Toolkit. The mosaic as a single file, is a 108,291 x 108,291 pixel FITS image, which is 87GB in size. Since this file is over 2GB is size (unix 32bit "large file" limit), the full-resolution mosaic cannot be downloaded in its entirety via HTTP. Instead, you can download one of the scaled-down images listed below, or download the mosaic as a set of 49 tile FITS images, which can be found here and are described in more detail in the table below.

Scaled-down ACS Mosaics:

ACS Mosaic Tiles:

Click on the tile number to download each FITS (gzip format) image slice of the mosaic. Each file is under 2GB in size when unzipped (15,490 pixels on a side). North is "up" on image below.

7_1 7_2 7_3 7_4 7_5 7_6 7_7
6_1 6_2 6_3 6_4 6_5 6_6 6_7
5_1 5_2 5_3 5_4 5_5 5_6 5_7
4_1 4_2 4_3 4_4 4_5 4_6 4_7
3_1 3_2 3_3 3_4 3_5 3_6 3_7
2_1 2_2 2_3 2_4 2_5 2_6 2_7
1_1 1_2 1_3 1_4 1_5 1_6 1_7