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Merge pull request #23 from lsst-dm/tickets/DM-47187
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DM-47187: Update from synthLSST to real ComCam color terms.
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erykoff authored Jan 7, 2025
2 parents dba50e2 + 377cd2f commit b1b1a02
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6 changes: 6 additions & 0 deletions bin.src/measure_comcam_colorterms.py
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#!/usr/bin/env python

from lsst.the.monster import ComCamSplineMeasurer

measurer = ComCamSplineMeasurer()
measurer.measure_spline_fit(bands=["u", "g", "r", "i", "z", "y"])
24 changes: 24 additions & 0 deletions colorterms/Monster_to_ComCam_band_g.yaml
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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
28 changes: 28 additions & 0 deletions colorterms/Monster_to_ComCam_band_i.yaml
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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
28 changes: 28 additions & 0 deletions colorterms/Monster_to_ComCam_band_r.yaml
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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
18 changes: 18 additions & 0 deletions colorterms/Monster_to_ComCam_band_u.yaml
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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
22 changes: 22 additions & 0 deletions colorterms/Monster_to_ComCam_band_y.yaml
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@@ -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
28 changes: 28 additions & 0 deletions colorterms/Monster_to_ComCam_band_z.yaml
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@@ -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
Binary file added data/calspec/c26202_mod_008.fits
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8 changes: 8 additions & 0 deletions data/throughputs/README
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Expand Up @@ -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.
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