Opened 20 months ago

Last modified 20 months ago

#594 new task

Fenix Calibration, 2015

Reported by: lah Owned by:
Priority: immediate Milestone:
Component: Processing: general Keywords: calibration, fenix
Cc: Other processors:

Description (last modified by dac)

Data location: ~arsf/arsf_data/2015/misc/2015_cal_feb_gloucester

Change History (6)

comment:1 Changed 20 months ago by lah

Produced wavelength scale with parameters below, removing bad lines (from fityk output .peaks files) with unrealistic FWHMs and large errors from spectral line test:

config file (/processed_lah/calibration_config.cfg):

  • day: d3-1
  • linefile: spectral_lines_aug15.csv
  • sample_hdr_file: /users/rsg/arsf/calibration/2014/fenix/fenix_201405.hdr

cal_spectral.py:

  • --hwhm
  • --offset2 -8

final anchors: -1.3922212, -9.664062
final VNIR start: 379.792 nm
final SWIR start: 970.172 nm

All processing files stored in /processed_lah. Analysis outputs stored in /results (dated Sept 16).

comment:2 Changed 20 months ago by dac

  • Description modified (diff)

comment:3 Changed 20 months ago by dac

Redid spectral calibration using initial offset of -5.6, as found from comparison of minima in Fenix data from 2014, all processed with old calibration.

Final anchors: -0.929688, -6.546777
final VNIR start: 380.255 nm
final SWIR start: 969.272 nm

Processing stored under ./processed_sept_dac

Used '20150812_lah_cal_fixes' branch.

Continuing to radiometric calibration

comment:4 Changed 20 months ago by lah

Original calibration of 9nm offset had SWIR band starting at 967.348 nm, so not convinced that either of these calibration files is ideal.

comment:5 Changed 20 months ago by dac

Generated bandsets for VNIR binning of 4 and 8 using:

gen_bandsets.py --sensor fenix -b 2 -o fenix_201509_vnirbinning4 fenix_201509.txt --makesourcefile
gen_bandsets.py --sensor fenix -b 4 -o fenix_201509_vnirbinning8 fenix_201509.txt --makesourcefile

comment:6 Changed 20 months ago by lah

'Bad pixel File'

Generated bad pixel file using config settings below. Removed +1 from autodarkstartline in badpixel_detection script, as was using a line of the dark frames in calculations, particularly affecting method A.

VNIR:
A_thresh = 10
B_spectralwidth = 3
B_spatialwidth = 10
B_thresh = 10
C_thresh = 0.9825
D_spectralwidth = 1
D_spatialwidth = 18
D_thresh = 3
F_thresh = 0.1

SWIR:
A_thresh = 10
B_spectralwidth = 3
B_spatialwidth = 10
B_thresh = 20
C_thresh = 0.9825
D_spectralwidth = 1
D_spatialwidth = 18
D_thresh = 3
F_thresh = 0.3

Last edited 20 months ago by lah (previous) (diff)
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