GENERAL INFORMATION Title of Dataset: PPPP beam profiles and measured Shack Hartmann slopes Author/Principal Investigator Information Name: Nazim Ali Bharmal ORCID: 0000-0003-3708-2153 Institution: Durham University Address: Physics, Lower Mountjoy, South Road, Durham DH1 3LE Email: n.a.bharmal@durham.ac.uk Author/Associate or Co-investigator Information Name: Carlos Gonzalez Gutierrez ORCID: Institution: University of Oviedo Address: C/Independencia 13, 33004 Oviedo, Spain Email: gonzalezgcarlos@uniovi.es Date of data collection: 2021-08-09 to -24 Geographic location of data collection: PPPPP experiment, Durham (see https://doi.org/10.1117/1.JATIS.5.2.029002) Information about funding sources that supported the collection of the data: UKRI-STFC grant ST/T000244/1 SHARING/ACCESS INFORMATION Licenses/restrictions placed on the data: CC BY-SA, https://creativecommons.org/licenses/by-sa/4.0/ Links to publications that cite or use the data: *TODO INSERT DOI* Links to other publicly accessible locations of the data: None Links/relationships to ancillary data sets: None Was data derived from another source? No Recommended citation for this dataset: Bharmal N.A., Gonzalez Gutierrez C., Morris T.M., de Cos Juez F.J. (2023): PPPP beam profiles and measured Shack Hartmann slopes from the PPPPP experiment. Durham University. (dataset) DOI: http://doi.org/10.15128/r2np193923h DATA & FILE OVERVIEW Folder List: Each folder consists of a run with a different gain but an identical number of instances of data recorded. Date Name Length Gain ---------------------------------------------- 2021-08-09 DS_5 20000 0.1 2021-08-10 DS_6 20000 0.325 2021-08-11 DS_7 20000 0.55 2021-08-12 DS_8 20000 0.775 2021-08-13 DS_9 20000 1.0 2021-08-14 DS_10 20000 0.1 2021-08-15 DS_11 20000 0.325 2021-08-20 DS_13 20000 0.55 2021-08-23 DS_14 20000 0.775 2021-08-24 DS_15 20000 1.0 Within each folder, file names follow this template, Name Description ------------------------------------------------------------------------ HHhMM_slopes.fits SH WFS slopes (frames averaged) per instance HHhMM_wfe.fits Calculated wavefront error for each instance, arbitrary units (uncalibrated) HHhMM_References.fits Reference images for P1, P2, SH WFS slopes HHhMM_aberrations.fits Calculated aberration amplitudes of Zernike polynomials, following Noll 1982 HHhMM_beamProfile1.fits P1 beamprofiles (frames averaged) per instance HHhMM_beamProfile2.fits P2 beamprofiles (frames averaged) per instance HHhMM_actuators.fits Actuators sent for each instance HHhMM_variables.txt Configuration variables for the script, 'frameNos' represent the averaging from frames for each instance of this run. HHhMM_intensities.fits P1 and P2 camera total image intensities pre-normalisation HHhMM_ppppp-ph29-0.6.log Log from script, for debugging purposes HHhMM_variances.png Graphical overview of data, quicklook Finally, there is an additional data file, gDARCM_i.pickle.npy Wavefront reconstruction matrix which is used to compute the wavefront error from the slopes. The FITS files are written using a custom (Python 2.x) code but are consistent with the FITS standard. The npy file is a version 1.0 numpy array pickle. Relationship between files, if important: Additional related data collected that was not included in the current data package: None Are there multiple versions of the dataset? No METHODOLOGICAL INFORMATION Description of methods used for collection/generation of data: An automated script (written in Python 2.7, available from NAB) ran the experiment, PPPPP, which had three cameras, identically controlled via three instances of the DARC RTC, and one DM, controlled via a separate computer that interpreted commands sent remotely from the script. Configuration files for DARC are also available (from NAB). Methods for processing the data: All data as provided was collected by the cameras in the PPPPP experiment. Instrument- or software-specific information needed to interpret the data: data are all stored as FITS files, readable with the astropy.io.fits Python library and so compatible with standard libraries. Standards and calibration information, if appropriate: None Environmental/experimental conditions: STP, during night hours to remove effects of ambient vibrations Describe any quality-assurance procedures performed on the data: The HHhMM_variances.png files are plots showing the variability of each frame for the injected aberrations on the DM, the measured WFS slopes, and the measured intensity in the PPPP cameras (averaged) People involved with sample collection, processing, analysis and/or submission: NAB, machine learning led by CGG but not included in this dataset DATA-SPECIFIC INFORMATION FOR .fits FILES: HHhMM_References.fits There are three HDUs, the first is the reference image from the P1 camera: NAXIS = 2 DESC = Centered reference P1, cropped from the full image NAXIS1 = 300 NAXIS2 = 300 RADII = Fitted radii for y-, then x-binning OFFSETS = Fitted centre offset for y-, then x-binning SCALES = Fitted scaling for y-, then x-binning LINEARS = Fitted linear component for y-, then x-binning FRAMEN = 10 the second is the reference image from the P2 camera: (as above) and the third is the reference slopes vector from the WFS: NAXIS = 1 NAXIS1 = 74 FRAMEN = 50, frames averaged DESC = Centroid references Each .fits file below is structured as pairs of HDUs. The first of the pair is described below and represents a subset of the instances for the relevant data stored in the pair. The second of the pair represents the timing for each instance of the data subset. Hence a pair is (data HDU, timing HDU). All the pairs together represent all the instances, and therefore the complete data for that run of the experiment. Below is described the structure of the first extension, repeated until the dataset is complete. (The exception is for the intensities where the data is not stored as pairs of HDUs but instead singly, and so without timing.) The timing HDU in a pair has the same length as the data HDU's last axis. HHhMM_beamProfile1.fits NAXIS = 3 DESC = Centred beam-profile P1, cropped from the full image NAXIS1 = 300 # vertical dimension NAXIS2 = 300 # horizontal dimension NAXIS3 = 249 # frame number HHhMM_beamProfile2.fits As 'beamProfile2' but for camera P2 HHhMM_intensities.fits NAXIS = 2 DESC = P1 and P2 intensities, pre-normalisation NAXIS1 = 2 NAXIS2 = 249 # frame number HHhMM_aberrations.fits NAXIS = 2 DESC = Aberrations NAXIS1 = 12 # Zernike polynomial (Noll ordering) index, from Z4 inclusive NAXIS2 = 249 HHhMM_slopes.fits NAXIS = 2 DESC = Slopes NAXIS1 = 74 # slope index, arranged as XYXY...XYXY NAXIS2 = 249 HHhMM_actuators.fits NAXIS = 2 DESC = Actuators NAXIS1 = 40 # DM actuator index, not including the tip/tilt actuators NAXIS2 = 249 HHhMM_wfe.fits NAXIS = 1 DESC = Wavefront Error, arb. units, reconstruction using a synthetic IMX and Tikhonov regularisation, stored as `gDARCM_i.pickle.npy' NAXIS1 = 249