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import os
import numpy as np
import mpi4py.MPI as MPI
import galsim
import psutil
from datetime import datetime
from ObservationSim.Config import config_dir, ChipOutput
from ObservationSim.Instrument import Telescope, Filter, FilterParam, FocalPlane, Chip
from ObservationSim.Instrument.Chip import Effects
from ObservationSim.Instrument.Chip import ChipUtils as chip_utils
from ObservationSim._util import makeSubDir_PointingList
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from ObservationSim.Astrometry.Astrometry_util import on_orbit_obs_position
from ObservationSim.sim_steps import SimSteps, SIM_STEP_TYPES
def __init__(self, config, Catalog, work_dir=None, data_dir=None):
self.path_dict = config_dir(config=config, work_dir=work_dir, data_dir=data_dir)
self.tel = Telescope()
self.filter_param = FilterParam()
def prepare_chip_for_exposure(self, chip, ra_cen, dec_cen, pointing, wcs_fp=None):
# Get WCS for the focal plane
if wcs_fp == None:
wcs_fp = self.focal_plane.getTanWCS(ra_cen, dec_cen, pointing.img_pa, chip.pix_scale)
# Create chip Image
chip.img = galsim.ImageF(chip.npix_x, chip.npix_y)
chip.img.setOrigin(chip.bound.xmin, chip.bound.ymin)
chip.img.wcs = wcs_fp
# Get random generators for this chip
chip.rng_poisson, chip.poisson_noise = chip_utils.get_poisson(
seed=int(self.config["random_seeds"]["seed_poisson"]) + pointing.id*30 + chip.chipID, sky_level=0.)
# Get flat, shutter, and PRNU images
chip.flat_img, _ = chip_utils.get_flat(img=chip.img, seed=int(self.config["random_seeds"]["seed_flat"]))
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if chip.chipID > 30:
chip.shutter_img = np.ones_like(chip.img.array)
else:
chip.shutter_img = Effects.ShutterEffectArr(chip.img, t_shutter=1.3, dist_bearing=735, dt=1E-3)
chip.prnu_img = Effects.PRNU_Img(xsize=chip.npix_x, ysize=chip.npix_y, sigma=0.01,
seed=int(self.config["random_seeds"]["seed_prnu"]+chip.chipID))
return chip
def run_one_chip(self, chip, filt, pointing, chip_output, wcs_fp=None, psf_model=None, cat_dir=None, sed_dir=None):
chip_output.Log_info(':::::::::::::::::::Current Pointing Information::::::::::::::::::')
chip_output.Log_info("RA: %f, DEC; %f" % (pointing.ra, pointing.dec))
chip_output.Log_info("Time: %s" % datetime.utcfromtimestamp(pointing.timestamp).isoformat())
chip_output.Log_info("Exposure time: %f" % pointing.exp_time)
chip_output.Log_info("Satellite Position (x, y, z): (%f, %f, %f)" % (pointing.sat_x, pointing.sat_y, pointing.sat_z))
chip_output.Log_info("Satellite Velocity (x, y, z): (%f, %f, %f)" % (pointing.sat_vx, pointing.sat_vy, pointing.sat_vz))
chip_output.Log_info("Position Angle: %f" % pointing.img_pa.deg)
chip_output.Log_info('Chip : %d' % chip.chipID)
chip_output.Log_info(':::::::::::::::::::::::::::END:::::::::::::::::::::::::::::::::::')
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# Apply astrometric simulation for pointing
if self.config["obs_setting"]["enable_astrometric_model"]:
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date_str = dt.date().isoformat()
time_str = dt.time().isoformat()
ra_cen, dec_cen = on_orbit_obs_position(
input_ra_list=[pointing.ra],
input_dec_list=[pointing.dec],
input_pmra_list=[0.],
input_pmdec_list=[0.],
input_rv_list=[0.],
input_parallax_list=[1e-9],
input_nstars=1,
input_x=pointing.sat_x,
input_y=pointing.sat_y,
input_z=pointing.sat_z,
input_vx=pointing.sat_vx,
input_vy=pointing.sat_vy,
input_vz=pointing.sat_vz,
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input_date_str=date_str,
input_time_str=time_str
)
ra_cen, dec_cen = ra_cen[0], dec_cen[0]
else:
ra_cen = pointing.ra
dec_cen = pointing.dec
# Prepare necessary chip properties for simulation
chip = self.prepare_chip_for_exposure(chip, ra_cen, dec_cen, pointing)
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# self.cat = self.Catalog(config=self.config, chip=chip, pointing=pointing, cat_dir=cat_dir, sed_dir=sed_dir, chip_output=chip_output, filt=filt)
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# Initialize SimSteps
sim_steps = SimSteps(overall_config=self.config, chip_output=chip_output, all_filters=self.all_filters)
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if self.config["run_option"]["out_cat_only"]:
if step != "scie_obs":
continue
chip_output.Log_info("Starting simulation step: %s, calling function: %s"%(step, SIM_STEP_TYPES[step]))
obs_param = pointing.obs_param["call_sequence"][step]
step_name = SIM_STEP_TYPES[step]
try:
step_func = getattr(sim_steps, step_name)
chip, filt, tel, pointing = step_func(
chip=chip,
filt=filt,
chip_output.Log_info("Finished simulation step: %s"%(step))
except Exception as e:
traceback.print_exc()
chip_output.Log_error(e)
chip_output.Log_error("Failed simulation on step: %s"%(step))
break
chip_output.Log_info("check running:1: pointing-%d chip-%d pid-%d memory-%6.2fGB"%(pointing.id, chip.chipID, os.getpid(), (psutil.Process(os.getpid()).memory_info().rss / 1024 / 1024 / 1024) ))
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# def run_one_chip_calibration(self, chip, filt, pointing, chip_output, skyback_level = 20000, sky_level_filt = 'g', wcs_fp=None, psf_model=None, cat_dir=None, sed_dir=None):
# # # Get WCS for the focal plane
# # if wcs_fp == None:
# # wcs_fp = self.focal_plane.getTanWCS(ra_cen, dec_cen, pointing.img_pa, chip.pix_scale)
# # Create chip Image
# chip.img = galsim.ImageF(chip.npix_x, chip.npix_y)
# chip.img.setOrigin(chip.bound.xmin, chip.bound.ymin)
# # chip.img.wcs = wcs_fp
# pf_map = np.zeros_like(chip.img.array)
# if self.config["obs_setting"]["LED_TYPE"] is not None:
# if len(self.config["obs_setting"]["LED_TYPE"]) != 0:
# print("LED OPEN--------")
# led_obj = FlatLED(chip, filt)
# led_flat = led_obj.drawObj_LEDFlat(led_type_list=self.config["obs_setting"]["LED_TYPE"], exp_t_list=self.config["obs_setting"]["LED_TIME"])
# pf_map = led_flat
# # whether to output zero, dark, flat calibration images.
# expTime = self.config["obs_setting"]["exp_time"]
# norm_scaler = skyback_level/expTime / self.filter_param.param[sky_level_filt][5]
# if skyback_level == 0:
# self.config["ins_effects"]["shutter_effect"] = False
# if chip.survey_type == "photometric":
# sky_map = np.ones_like(chip.img.array) * norm_scaler * self.filter_param.param[chip.filter_type][5] / self.tel.pupil_area
# elif chip.survey_type == "spectroscopic":
# flat_normal = np.ones_like(chip.img.array)
# if self.config["ins_effects"]["flat_fielding"] == True:
# chip_output.Log_info("SLS flat preprocess,CHIP %d : Creating and applying Flat-Fielding" % chip.chipID)
# msg = str(chip.img.bounds)
# chip_output.Log_info(msg)
# flat_img = Effects.MakeFlatSmooth(
# chip.img.bounds,
# int(self.config["random_seeds"]["seed_flat"]))
# flat_normal = flat_normal * flat_img.array / np.mean(flat_img.array)
# if self.config["ins_effects"]["shutter_effect"] == True:
# chip_output.Log_info("SLS flat preprocess,CHIP %d : Apply shutter effect" % chip.chipID)
# shuttimg = Effects.ShutterEffectArr(chip.img, t_shutter=1.3, dist_bearing=735,
# dt=1E-3) # shutter effect normalized image for this chip
# flat_normal = flat_normal * shuttimg
# flat_normal = np.array(flat_normal, dtype='float32')
# sky_map = calculateSkyMap_split_g(
# skyMap=flat_normal,
# blueLimit=filt.blue_limit,
# redLimit=filt.red_limit,
# conf=chip.sls_conf,
# pixelSize=chip.pix_scale,
# isAlongY=0,
# flat_cube=chip.flat_cube)
# sky_map = sky_map * norm_scaler
# chip.img = chip.addEffects(
# config=self.config,
# img=chip.img,
# chip_output=chip_output,
# filt=filt,
# ra_cen=pointing.ra,
# dec_cen=pointing.dec,
# img_rot=pointing.img_pa,
# exptime=self.config["obs_setting"]["exp_time"],
# pointing_ID=pointing.id,
# timestamp_obs=pointing.timestamp,
# pointing_type=pointing.pointing_type,
# sky_map=sky_map, tel=self.tel,
# post_flash_map=pf_map,
# logger=chip_output.logger)
# datetime_obs = datetime.utcfromtimestamp(pointing.timestamp)
# date_obs = datetime_obs.strftime("%y%m%d")
# time_obs = datetime_obs.strftime("%H%M%S")
# h_prim = generatePrimaryHeader(
# xlen=chip.npix_x,
# ylen=chip.npix_y,
# pointNum=str(pointing.id),
# ra=pointing.ra,
# dec=pointing.dec,
# pixel_scale=chip.pix_scale,
# date=date_obs,
# time_obs=time_obs,
# exptime=self.config["obs_setting"]["exp_time"],
# im_type='DARKPF',
# sat_pos=[pointing.sat_x, pointing.sat_y, pointing.sat_z],
# sat_vel=[pointing.sat_vx, pointing.sat_vy, pointing.sat_vz],
# chip_name=str(chip.chipID).rjust(2, '0'))
# h_ext = generateExtensionHeader(
# chip=chip,
# xlen=chip.npix_x,
# ylen=chip.npix_y,
# ra=pointing.ra,
# dec=pointing.dec,
# pa=pointing.img_pa.deg,
# gain=chip.gain,
# readout=chip.read_noise,
# dark=chip.dark_noise,
# saturation=90000,
# pixel_scale=chip.pix_scale,
# pixel_size=chip.pix_size,
# xcen=chip.x_cen,
# ycen=chip.y_cen,
# extName='SCI',
# timestamp=pointing.timestamp,
# exptime=self.config["obs_setting"]["exp_time"],
# readoutTime=chip.readout_time)
# chip.img = galsim.Image(chip.img.array, dtype=np.uint16)
# hdu1 = fits.PrimaryHDU(header=h_prim)
# hdu1.add_checksum()
# hdu1.header.comments['CHECKSUM'] = 'HDU checksum'
# hdu1.header.comments['DATASUM'] = 'data unit checksum'
# hdu2 = fits.ImageHDU(chip.img.array, header=h_ext)
# hdu2.add_checksum()
# hdu2.header.comments['XTENSION'] = 'extension type'
# hdu2.header.comments['CHECKSUM'] = 'HDU checksum'
# hdu2.header.comments['DATASUM'] = 'data unit checksum'
# hdu1 = fits.HDUList([hdu1, hdu2])
# fname = os.path.join(chip_output.subdir, h_prim['FILENAME'] + '.fits')
# hdu1.writeto(fname, output_verify='ignore', overwrite=True)
# # chip_output.Log_info("# objects that are too bright %d out of %d" % (bright_obj, self.nobj))
# # chip_output.Log_info("# objects that are too dim %d out of %d" % (dim_obj, self.nobj))
# # chip_output.Log_info("# objects that are missed %d out of %d" % (missed_obj, self.nobj))
# del chip.img
# chip_output.Log_info("check running:2: pointing-%d chip-%d pid-%d memory-%6.2fGB" % (
# pointing.id, chip.chipID, os.getpid(), (psutil.Process(os.getpid()).memory_info().rss / 1024 / 1024 / 1024)))
def runExposure_MPI_PointingList(self, pointing_list, chips=None, use_mpi=False):
if use_mpi:
comm = MPI.COMM_WORLD
ind_thread = comm.Get_rank()
num_thread = comm.Get_size()
for ipoint in range(len(pointing_list)):
# Construct chips & filters:
pointing = pointing_list[ipoint]
pointing_ID = pointing.id
self.focal_plane = FocalPlane(chip_list=pointing.obs_param["run_chips"])
# Make Chip & Filter lists
self.chip_list = []
self.filter_list = []
self.all_filters = []
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for i in range(self.focal_plane.nchips):
chipID = i + 1
chip = Chip(chipID=chipID, config=self.config)
filter_id, filter_type = chip.getChipFilter()
filt = Filter(
filter_id=filter_id,
filter_type=filter_type,
filter_param=self.filter_param)
if not self.focal_plane.isIgnored(chipID=chipID):
self.chip_list.append(chip)
self.filter_list.append(filt)
self.all_filters.append(filt)
if chips is None:
# Run all chips defined in configuration of this pointing
run_chips = self.chip_list
run_filts = self.filter_list
nchips_per_fp = len(self.chip_list)
else:
# Only run a particular set of chips (defined in the overall config file)
run_chips = []
run_filts = []
for ichip in range(len(self.chip_list)):
chip = self.chip_list[ichip]
filt = self.filter_list[ichip]
if chip.chipID in chips:
run_chips.append(chip)
run_filts.append(filt)
nchips_per_fp = len(chips)
pid = os.getpid()
sub_img_dir, prefix = makeSubDir_PointingList(path_dict=self.path_dict, config=self.config, pointing_ID=pointing_ID)
# chip_output.Log_info("running pointing#%d, chip#%d, at PID#%d..."%(pointing_ID, chip.chipID, pid))
chip_output = ChipOutput(
config=self.config,
focal_plane=self.focal_plane,
chip=chip,
filt=filt,
exptime=pointing.exp_time,
pointing_type=pointing.pointing_type,
prefix=prefix,
ra_cen=pointing.ra,
dec_cen=pointing.dec)
chip_output.Log_info("running pointing#%d, chip#%d, at PID#%d..."%(pointing_ID, chip.chipID, pid))
self.run_one_chip(
chip=chip,
filt=filt,
chip_output=chip_output,
pointing=pointing)
# if self.config["obs_setting"]["survey_type"] == "CALIBRATION":
# self.run_one_chip_calibration(chip=chip,
# filt=filt,
# chip_output=chip_output,
# pointing=pointing,
# skyback_level = self.config["obs_setting"]["FLAT_LEVEL"],
# sky_level_filt = self.config["obs_setting"]["FLAT_LEVEL_FIL"])
# else:
# self.run_one_chip(
# chip=chip,
# filt=filt,
# chip_output=chip_output,
# pointing=pointing)
chip_output.Log_info("finished running chip#%d..."%(chip.chipID))
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for handler in chip_output.logger.handlers[:]:
chip_output.logger.removeHandler(handler)