Calibration lamp NGC772 G092

This data cube was supplied by Benoît Epinat and corresponds to the spectrograph of a calibration lamp imaged before data aquisition in a run made to observe NGC772.

The reduction was made using Tuna v0.16.4.

The code for reducing it was:

import time
import tuna
tuna.log.set_path ( "test.log" )
tuna.log.verbose ( "file", "DEBUG" )

def reduce_test ( file_name ):
  file_object = tuna.io.read ( file_name )
  start = time.time ( )
  reducer = tuna.pipelines.calibration_lamp_high_resolution.reducer (
    calibration_wavelength = 6598.953125,
    finesse = 12,
    free_spectral_range = 8.36522123894,
    interference_order = 791,
    interference_reference_wavelength = 6562.7797852,
    pixel_size = 9,
    scanning_wavelength = 6616.89,
    tuna_can = file_object,
    channel_subset = [ 0, 1, 2, 5 ],
    continuum_to_FSR_ratio = 0.125,
    noise_mask_radius = 9,
    dont_fit = False,
    unwrapped_only = False,
    verify_center = None )
  reducer.join ( )
  print ( "Tuna took {:.1f}s to reduce.".format ( time.time ( ) - start ) )
  return reducer

test = reduce_test ( "/home/nix/cold_store/fpdata_NGC772_Benoit_Epinat_2014-11-05/G092/G092.AD3" )
tuna.tools.plot_high_res ( test )

The output from running it was:

Log file set to test.log.
Handler <logging.FileHandler object at 0x7f20187c3860> set to 10.
Successfully read adhoc 3d object from file /home/nix/cold_store/fpdata_NGC772_Benoit_Epinat_2014-11-05/G092/G092.AD3.
Starting tuna.pipelines.calibration_lamp_high_resolution pipeline.
Continuum array created.
Barycenter done.
Noise map created with lower_value = 4.0.
Searching for concentric rings in plane 0.
Concentric rings structure: ((216.70845070644381, 256.06969280465921), [231.99294249957384, 109.89700028991167, 310.27998456965793], [0, 1, 2])
Ring structure obtained from plane where borders occupy 28% of the array.
sorted_radii = ['109.90', '231.99', '310.28']
inital_gap = 2.61e+06 microns
channel_gap = 31.5815982991933 microns.
Airy <|residue|> = 35.4 photons / pixel
sorted_distances == [101.97874125187644, 226.0981120852606, 349.79260244157507]
Phase map unwrapped.
Wavelength calibration done.
Parabolic model fitted.
Tuna took 146.4s to reduce.