Release note for v0_01 (3 Apr 2024)
 This is an internal data release for Hector, version v0.01.
 If your have any queries, please contact Sree Oh (sreemario@gmail.com).

1. Release catalogue: release_catalogue_v0_01.csv
  name = galaxy id
  filename = cube filename
  ccd = blue(BL) or red(RD) arm
  identifier = cube identifier (A-Z)
  version = version of data release
  infile = original cube name
  runid = observing run id
  ra, dec = right ascension, declination
  xcen, ycen = x, y centres of the cube (target)
  texp = integrated exposure time
  ndither = number of RSS frames combined for the cube
  inst = instrument name 
  probe = Hexabundle name
  tile = tile name
  field = filed name (all values are 1 for Hector but SAMI will have values)
  source = object source. WAVES(W) or cluster(C) or star fields(S)
  type = object type. star(S) or galaxy(G)
  fwhm = mean PSF FWHM in arcsec
  trans = mean relative transmission

2. List of runs to be included (YYMMDD_YYMMDD)
  *220817_220904
  *220914_220925
  *221019_221030
  230417_230430
  230613_230626
  230710_230724
  230809_230814
  230906_230917
  231004_231009
  231106_231119
  231206_231219
  Please note that runs prior to 2023 (marked with *) are considered commissioning runs. Exercise caution when using commissioning data.

3. v0_01 Cubes (~1.7T)
 Data releases v0_01 release 3714 cubes including 1421 unique galaxies
 The cubes are uploaded to the data central clouds:
 https://cloud.datacentral.org.au/apps/files/?dir=/Hector/Data_Release/release_v0_01

 It is recommanded to use rsync:
 rsync -avz -e 'ssh -p 2232' hector@uploads.datacentral.org.au:/data/Data_Release/release_v0_01 ./
 L3tMe!nPle@se 

4. Reduction note
  Preprocessing:
  - Overscan correction is applied to all frames. No additional bias correction using bias frames is performed.
  - No Dark and Lflat corrections
  - Bias column at the middle of all ccd4 (Spector Red) frames is removed by the pipeline
  - Tramline Mapping is performed using dome flats for the red ccds (ccd2 & ccd4) and twilight flats for the blue ccds (ccd1 & ccd3).
  - Arc solutions: For AAOmega blue (CCD1), arc solutions from 2dfdr are enhanced using twilight data.
	For Spector blue, no additional corrections are made with twilight, with an uncertainty of approximately 0.5Å.
  - Flat fielding is excuted using dome flats for red ccds (ccd2 & ccd4) and using twilight flats for blue ccds (ccd1 & ccd3)
  - Througput is estimated using twilight flats where available

  Pre-cubing
  - Primary flux calibration is conducted using reliable reference standard stars within each run, while deliberately excluding overly bright or low-resolution stars. 
	In the absence of suitable standard star frames, or when the transfer function significantly deviates from the mean transfer function, the mean transfer function is employed.
  - Telluric correction is applied through the Molecfit pipeline provided by ESO
	Note: For this release, telluric correction failed for three frames of the H01_T209 tile in November 2023.
  - Secondary flux calibration is performed using stars with H and U probes during each observation
  - Secondary flux calibrations are omitted for commissioning runs lacking well-positioned stars in the bundle, and no quality control parameters (such as FWHM or transmission) are available for these runs.
  - Chromatic variations in distortion (CVD) is corrected based on an empirically defined optical models
  - Alignment of RSS frames is using the centre of mass of the object in eash frame

  Cubing
  - The cubing process follows the SAMI drizzle method. Please refer to the SAMI Data Reduction (DR) papers for detailed information.
  - The minimum requirement for cubing is to have at least 6 RSS frames with an FWHM of less than 4 arcseconds and a transmission greater than 0.333.
  - The X and Y dimensions of the cubes are adjusted according to the data. While the X and Y sizes are consistent within each cube, they vary from galaxy to galaxy.
  - Spectra are displayed within a wavelength range where the absolute transmission exceeds 0.05.

 Then, enjoy the cubes!