DM-47187: Update from synthLSST to real ComCam color terms.

bin.src/measure_comcam_colorterms.py

@@ -0,0 +1,6 @@
+#!/usr/bin/env python
+
+from lsst.the.monster import ComCamSplineMeasurer
+
+measurer = ComCamSplineMeasurer()
+measurer.measure_spline_fit(bands=["u", "g", "r", "i", "z", "y"])

colorterms/Monster_to_ComCam_band_g.yaml

@@ -0,0 +1,24 @@
+flux_offset: 0.0
+nodes:
+- 0.35
+- 0.7285714285714285
+- 1.1071428571428572
+- 1.4857142857142858
+- 1.8642857142857143
+- 2.242857142857143
+- 2.6214285714285714
+- 3.0
+source_color_field_1: monster_DES_g_flux
+source_color_field_2: monster_DES_i_flux
+source_field: monster_DES_g_flux
+source_survey: Monster
+spline_values:
+- 0.9977035338305718
+- 0.9945069060455712
+- 0.9945290189002378
+- 0.9935595093133707
+- 0.9919568364518895
+- 0.9880568810813198
+- 0.9826858328755973
+- 0.9727218091093088
+target_survey: ComCam

colorterms/Monster_to_ComCam_band_i.yaml

@@ -0,0 +1,28 @@
+flux_offset: 0.0
+nodes:
+- 0.35
+- 0.6444444444444444
+- 0.9388888888888889
+- 1.2333333333333334
+- 1.5277777777777777
+- 1.8222222222222224
+- 2.1166666666666667
+- 2.4111111111111114
+- 2.7055555555555557
+- 3.0
+source_color_field_1: monster_DES_g_flux
+source_color_field_2: monster_DES_i_flux
+source_field: monster_DES_i_flux
+source_survey: Monster
+spline_values:
+- 1.0024897270144373
+- 0.9929411338709319
+- 0.9827578858690795
+- 0.972527362241766
+- 0.9596272533424577
+- 0.9441152612780851
+- 0.9203293140085828
+- 0.8948180766545992
+- 0.8669012786683447
+- 0.8395057765541502
+target_survey: ComCam

colorterms/Monster_to_ComCam_band_r.yaml

@@ -0,0 +1,28 @@
+flux_offset: 0.0
+nodes:
+- 0.35
+- 0.6444444444444444
+- 0.9388888888888889
+- 1.2333333333333334
+- 1.5277777777777777
+- 1.8222222222222224
+- 2.1166666666666667
+- 2.4111111111111114
+- 2.7055555555555557
+- 3.0
+source_color_field_1: monster_DES_g_flux
+source_color_field_2: monster_DES_i_flux
+source_field: monster_DES_r_flux
+source_survey: Monster
+spline_values:
+- 0.9875867681371967
+- 0.9735663747321471
+- 0.9601700359973154
+- 0.9477505905558333
+- 0.9351812661798063
+- 0.9204264652100641
+- 0.9011205372511717
+- 0.8787272652873112
+- 0.8524882809693558
+- 0.8239493327993768
+target_survey: ComCam

colorterms/Monster_to_ComCam_band_u.yaml

@@ -0,0 +1,18 @@
+flux_offset: 0.0
+nodes:
+- 0.35
+- 0.4375
+- 0.5249999999999999
+- 0.6124999999999999
+- 0.7
+source_color_field_1: monster_DES_g_flux
+source_color_field_2: monster_DES_r_flux
+source_field: monster_SDSS_u_flux
+source_survey: Monster
+spline_values:
+- 1.1744485105957316
+- 1.138572963077543
+- 1.1166661995392342
+- 1.128442879245455
+- 1.144844329061915
+target_survey: ComCam

colorterms/Monster_to_ComCam_band_y.yaml

@@ -0,0 +1,22 @@
+flux_offset: 0.0
+nodes:
+- 0.0
+- 0.11666666666666665
+- 0.2333333333333333
+- 0.35
+- 0.4666666666666666
+- 0.5833333333333333
+- 0.7
+source_color_field_1: monster_DES_i_flux
+source_color_field_2: monster_DES_z_flux
+source_field: monster_DES_y_flux
+source_survey: Monster
+spline_values:
+- 1.0306658767442902
+- 1.0188952600271353
+- 1.014526124052815
+- 1.0115064917525474
+- 1.0068120628850747
+- 1.0023654531587292
+- 0.9976634639826649
+target_survey: ComCam

colorterms/Monster_to_ComCam_band_z.yaml

@@ -0,0 +1,28 @@
+flux_offset: 0.0
+nodes:
+- 0.0
+- 0.07777777777777778
+- 0.15555555555555556
+- 0.23333333333333334
+- 0.3111111111111111
+- 0.3888888888888889
+- 0.4666666666666667
+- 0.5444444444444445
+- 0.6222222222222222
+- 0.7
+source_color_field_1: monster_DES_i_flux
+source_color_field_2: monster_DES_z_flux
+source_field: monster_DES_z_flux
+source_survey: Monster
+spline_values:
+- 1.0034256417369722
+- 0.9823321493075006
+- 0.9617081342430235
+- 0.9449114281475789
+- 0.9304983472860474
+- 0.9161310649815223
+- 0.9016639437101419
+- 0.8855745776192167
+- 0.8677137568969393
+- 0.8506685283214435
+target_survey: ComCam

data/throughputs/README

@@ -2,6 +2,14 @@ The LSST throughputs (version 1.9) were downloaded from
 https://raw.githubusercontent.com/lsst/throughputs/main/baseline/ on
 2023-11-03.
 
+The ComCam throughputs were assembled by combining version 1.9 of
+lsst/throughputs "lens1", "lens2", "lens3", "m1", "m2", "m3", and "atmos_std"
+components with the ITL throughput average as ingested into
+`$OBS_LSST_DATA_DIR/comCam/transmission_sensor/r22_s10` (note that all sensors
+were assumed to be the same as of 2024-12-12. Then this combined throughput was
+multipled by the reference filter curves in
+https://raw.githubusercontent.com/lsst/throughputs/main/baseline/.
+
 The DES throughputs were downloaded from
 https://noirlab.edu/science/sites/default/files/media/archives/documents/scidoc1884.txt
 on 2023-11-03.