Dark Energy Survey Data Release 2 (DES DR2) is a dataset captured by the Dark Energy Camera (DECam), ...
The data from DES DR2 originates from observations conducted between August 15, 2013, and January 9, ...
DES DR2 includes 96,263 DECam exposures, of which 83,706 are part of the wide-field survey and 12,557 ...
Characteristically, each location in DES DR2 is typically observed by 7-10 overlapping DECam exposures ...
You can get the more detailed information through https://des.ncsa.illinois.edu/releases/dr2.