# Finding raw HST data for WFC or HRC?

I'm doing a project that requires raw .fits images that contain a certain galaxy from the HST (F814W filter).

I've been able to find the calibrated images of the WFC view using the MAST data portal. However, there is no raw data listed. I would also like to find any of the corresponding HRC data as well if possible.

If anyone out there knows where to find the data, please let me know!

• For my curiosity: what kind of projects require uncalibrated data with all the instrument artefacts? Nov 19 '21 at 12:01
• Using it to generate a noise map for strong lensing ray tracing simulations. Will probably be unnecessary in the long run, but it may be useful to compare it to previous results that have been computed from a raw data pipeline. Nov 19 '21 at 23:42

You can get these data from MAST but it's not terribly obvious. Once you have filtered down to the data you want, selecting the data for download will produce a box that allows Uncalibrated file types to be returned. Searching the MAST archive for Hubble Space Telescope(HST) data from the Advanced Camera for Surveys (ACS; which contains the Wide Field Camera (WFC) and High Resolution Camera (HRC) you seek) in the specified filter (F814W; a Wide Filter, centered at 814 nm) for galaxy data (MAST query URL) should produce a display that looks like:
Clicking the 'Download Data' button will (might take a while if you have lots of datasets selected) bring up a dialog box which allows you to select 'Uncalibrated' and/or 'Reference' to see those file types along with the pipeline processed calibrated images (note the _raw and _spt FITS files options that have now appeared):