ObservationSim.cfg

##################################################
#  Default configuration for CSSOS simulation    #
#     CSST-Sim Group, 2021/01/04, version 0.2    #
#                                                #
##################################################

# Observation setting
date_obs      210525                  # Observation date [yymmdd]
time_obs      120000                  # Observation time [hhmmss]
ra_center     60.0                    # Telesscope pointing center [degree] (Default)
dec_center   -40.0                     
psf_rcont     0.15,0.8                # Radius of the 80% flux concentration (for a Gaussian PSF)
image_rot    -113.4333                # Image orientation [degree]
sigma_spin    0.0                     # Image spin [degree]
rotateEll     0.0                     # Rotate the intrinsic ellipticity by a given angle  
                                      # (currently only support 0.0, 45.0, 90.0, 135.0 [degree])
survey_type   Photometric             # Survey simulation option:
                                      # 'Photometric': only run sims for photometric chips
                                      # 'Spectroscopic': only run sims for spectroscopic chps
                                      # 'All': run sims for all chips
psf_model     Interp                  # which PSF model to use:
                                      # 'Gauss': simple gaussin profile
                                      # 'Interp': Interpolated PSF from measured data 

#===========================================================
# Instrument effects
#===========================================================
field_dist       y                    # Y/N: Whether to add field distortion
abs_back         y                    # Y: add sky background + sky noise & dark + dark noise 
                                      # N: only add sky noise and dark noise
add_bias         y                    # Y/N: Whether to add bias-level to image
shutter_effect   y                    # Y/N: Whether to apply shutter effect
shutter_output   n                    # Y/N: Whether to export shutter effect 16-bit image (<=65535)
flat_fielding    y                    # Y/N: Whether to add flat-fielding effect
bias_output      y                    # Y/N: Whether to export bias frames
dark_output      y                    # Y/N: Whether to export the combined dark current file
flat_output      y                    # Y/N: Whether to export the combined flat-field file
prnu_effect      y                    # Y/N: Whether to apply PRNU effect
prnu_output      n                    # Y/N: Whether to export the PRNU (pixel-to-pixel flat-fielding) file
non_linear       n                    # Y/N: Whether to apply non-linearity
cosmic_ray       y                    # Y/N: Whether to add cosmic-ray
cray_differ      y                    # Y/N: Different cosmic-ray for calibration files or not
cte_trail        y                    # Y/N: Whether to simulate CTE trails
saturbloom       y                    # Y/N: Whether to simulate Saturation and Blooming
add_badcolumns   y                    # Y/N: Whether to add bad columns
add_hotpixels    y                    # Y/N: Whether to add hot pixels
add_deadpixels   y                    # Y/N: Whether to add dead(dark) pixels
readout16        n                    # Y/N: Whether to export as 16 subimages (channels) with pre- and over-scan
bright_fatter    y                    # Y/N: Whether to add brighter-fatter (also electron diffusion) effects
df_strength      2.3                  # Sillicon sensor diffusion strength
bias_level       500                  # e-/pixel
gain             1.1                  # Gain
full_well        90000                # Full well level [e-]
NBias            1                    # Number of frames to be exported
NDark            1                    # Number of frames to be exported
NFlat            1                    # Number of frames to be exported
dark_exptime     300                  # Exposure time for dark current frame
flat_exptime     150                  # Exposure time for flat field frame

#===========================================================
# Shear method
#===========================================================
shear_method  constant                # Only two methods are provided to generate mock shear field:
                                      # 'constant': all galaxies are assigned a constant reduced shear,
                                      #             but with different betas (orientations)
                                      # 'extra'   : from catalog(s) (not available yet)

# Constant shear field
reduced_g1  0.026                     # g1 component when 'shear_method'='constant'
reduced_g2  0.015                     # g2 component when 'shear_method'='constant'
reShear     E                         # Representation of the shear vertor

# Extra shear file
# shear_cat   mockShear.cat           # Extra provided shear catalog (currently not used)

#===========================================================
# Output directories
#===========================================================
mockImgDir    TEST                    # Name of subdirectory to save the mock image

#===========================================================
# Random Seeds
#===========================================================
seed_mock            12345678         # Seed for generating random values of ra, dec and av
seed_star            121212121        # Seed for generating random redshift, sed_type for stars
seed_gal             212121212        # Seed for generating random redshift, sed_type for galaxies
seed_Av              121212           # Seed for generating random intrinsic extinction
seed_CR              20210317         # Seed for generating random cosmic ray map
seed_flat            20210101         # Seed for generating random flat field
seed_prnu            20210102         # Seed for photo-response non-uniformity
seed_skynoise        20210201         # Seed for sky noise
seed_gainNonUniform  20210202         # Seed for Gain nonuniformity
seed_biasNonUniform  20210203         # Seed for Bias nonuniformity
seed_rnNonUniform    20210204         # Seed for ReadNoise nonuniformity
seed_badcolumns      20240309         # Initial Seed for Bad Columns
seed_defective       20210304         # Seed for Defective(bad) pixels