DECam filter information

• The DES standard bandpasses as used in the DES Data Release 1 (DR1) is available in the following table (available in both fits and ascii formats).  This table, also known as version Y3A2_20170715, is an updated characterization of the Blanco/DECam total system response (instrument and atmosphere) for the g, r, i, z and Y bands. The system responses (grizY columns) includes the total throughput of the system (instrument + atmosphere). If you want the system throughput without the atmosphere, divide the grizY column by the atm column. For more info, see the DR1 paper [1]. Notice that this new calibration does not imply changes of the filters/CCDs over time. Thus, this table is relevant for use with all DECam data since September 2012. The responses in this table have not been normalized. Absolute calibration/normalization will be provided soon.
  • Fits table [2]
  • Ascii table [3]
  • README [4]

DES DR1 Standard Bandpasses for the DECam g, r, i, z and Y filters. The bandpasses represent the total system throughput, including atmospheric transmission (airmass = 1.2) and the average instrumental response across the science CCDs.