add option to save cosmic ray image

ObservationSim/Instrument/Chip/ChipUtils.py

@@ -53,32 +53,34 @@ def getChipSLSConf(chipID):
     if chipID == 30: confFile = ['CSST_GI8.conf', 'CSST_GI7.conf']
     return confFile
 
-def generateHeader(chip, ra_cen, dec_cen, img_rot, im_type, pointing_ID, exptime=150., project_cycle=6, run_counter=0, timestamp = 1621915200):
-    datetime_obs = datetime.utcfromtimestamp(timestamp)
-    date_obs = datetime_obs.strftime("%y%m%d")
-    time_obs = datetime_obs.strftime("%H%M%S")
+def generateHeader(chip, pointing, img_type=None, img_type_code=None, project_cycle='9', run_counter='1'):
+    if (img_type is None) or (img_type_code is None):
+        img_type = pointing.pointing_type
+        img_type_code = pointing.pointing_type_code
+
     h_prim = generatePrimaryHeader(
         xlen=chip.npix_x, 
         ylen=chip.npix_y, 
-        pointNum = str(pointing_ID),
-        ra=ra_cen, 
-        dec=dec_cen, 
+        pointing_id = pointing.obs_id,
+        pointing_type_code = img_type_code, 
+        ra=pointing.ra, 
+        dec=pointing.dec, 
         pixel_scale=chip.pix_scale,
-        date=date_obs,
-        time_obs=time_obs,
-        im_type = im_type,
-        exptime=exptime,
+        time_pt = pointing.timestamp,
+        exptime=pointing.exp_time,
+        im_type=img_type,
+        sat_pos=[pointing.sat_x, pointing.sat_y, pointing.sat_z],
+        sat_vel=[pointing.sat_vx, pointing.sat_vy, pointing.sat_vz],
         project_cycle=project_cycle,
         run_counter=run_counter,
-        chip_name=str(chip.chipID).rjust(2, '0')
-        )
+        chip_name=str(chip.chipID).rjust(2, '0'))
     h_ext = generateExtensionHeader(
         chip=chip,
         xlen=chip.npix_x, 
         ylen=chip.npix_y, 
-        ra=ra_cen, 
-        dec=dec_cen,
-        pa=img_rot.deg, 
+        ra=pointing.ra, 
+        dec=pointing.dec, 
+        pa=pointing.img_pa.deg, 
         gain=chip.gain, 
         readout=chip.read_noise, 
         dark=chip.dark_noise, 
@@ -87,24 +89,22 @@ def generateHeader(chip, ra_cen, dec_cen, img_rot, im_type, pointing_ID, exptime
         pixel_size=chip.pix_size,
         xcen=chip.x_cen,
         ycen=chip.y_cen,
-        extName='SCIE',
-        timestamp = timestamp,
-        exptime = exptime,
-        readoutTime = chip.readout_time)
+        extName=img_type,
+        timestamp=pointing.timestamp,
+        exptime=pointing.exp_time,
+        readoutTime=chip.readout_time,
+        t_shutter_open=pointing.t_shutter_open, 
+        t_shutter_close=pointing.t_shutter_close)
     return h_prim, h_ext
 
-def outputCal(chip, img, ra_cen, dec_cen, img_rot, im_type, pointing_ID, output_dir, exptime=150., project_cycle=6, run_counter=0, timestamp = 1621915200):
+def output_fits_image(chip, pointing, img, output_dir, img_type=None, img_type_code=None, project_cycle='9', run_counter='1'):
     h_prim, h_ext = generateHeader(
         chip=chip, 
-        ra_cen=ra_cen,
-        dec_cen=dec_cen,
-        img_rot=img_rot,
-        im_type=im_type,
-        pointing_ID=pointing_ID,
-        exptime=exptime,
+        pointing=pointing, 
+        img_type=img_type, 
+        img_type_code=img_type_code,
         project_cycle=project_cycle,
-        run_counter=run_counter,
-        timestamp=timestamp)
+        run_counter=run_counter)
     hdu1 = fits.PrimaryHDU(header=h_prim)
     hdu1.add_checksum()
     hdu1.header.comments['CHECKSUM'] = 'HDU checksum'

ObservationSim/sim_steps/add_cosmic_rays.py

@@ -14,5 +14,17 @@ def add_cosmic_rays(self, chip, filt, tel, pointing, catalog, obs_param):
         chip=chip, 
         exptime=exptime, 
         seed=self.overall_config["random_seeds"]["seed_CR"]+pointing.id*30+chip.chipID)
-    # [TODO] output cosmic ray image
+    # Save cosmic ray image
+    if (obs_param) and ("save_cosmic_img" in obs_param) and (obs_param["save_cosmic_img"] is not None):
+        if obs_param["save_cosmic_img"]:
+            chip_utils.output_fits_image(
+                chip=chip,
+                pointing=pointing,
+                img=crmap_gsimg,
+                output_dir=self.chip_output.subdir,
+                img_type='CRS',
+                img_type_code=pointing.pointing_type_code,
+                project_cycle=self.overall_config["project_cycle"],
+                run_counter=self.overall_config["run_counter"]
+            )
     return chip, filt, tel, pointing
\ No newline at end of file

config/obs_config_SCI_WIDE_phot.yaml

@@ -48,6 +48,7 @@ call_sequence:
     # [Optional]: exposure time of the pointing will be used as default.
     # Set it here is you want to override the default
     # exptime: 150. # [s]
+    save_cosmic_img:  YES # # Whether to export cosmic ray image
   # Add Poission noise and dark current
   poisson_and_dark:
     # [Optional]: exposure time of the pointing will be used as default.