diff --git a/detector/stx_detector_response_matrix.fits.gz b/detector/stx_detector_response_matrix.fits.gz
new file mode 100644
index 0000000..bf8a528
Binary files /dev/null and b/detector/stx_detector_response_matrix.fits.gz differ
diff --git a/grid/CFL_subcoll_transmission.txt b/grid/CFL_subcoll_transmission.txt
new file mode 100644
index 0000000..9282b9a
--- /dev/null
+++ b/grid/CFL_subcoll_transmission.txt
@@ -0,0 +1,33 @@
+subc_n,subc_label,intercept,slope[1/deg]
+1,3c,0.2977,0.0235
+2,5c,0.1768,-0.0008
+3,10a,0.2358,-0.0004
+4,8c,0.2381,-0.0028
+5,4b,0.1967,0.0066
+6,5a,0.1879,0.0065
+7,3a,0.2717,0.0231
+8,7b,0.2105,-0.0032
+9,cfl,0,0
+10,bkg,0,0
+11,1a,0.1091,0.0230
+12,2a,0.1226,0.0154
+13,1b,0.0360,0.0087
+14,9b,0.2469,0.0015
+15,6a,0.1995,0.0074
+16,9a,0.2395,0.0031
+17,2c,0.1722,0.0186
+18,1c,0.0851,0.0227
+19,2b,0.0715,0.0089
+20,10b,0.2418,-0.0120
+21,8a,0.2164,-0.0019
+22,10c,0.2457,-0.0010
+23,4c,0.2105,0.0143
+24,7a,0.1998,-0.0013
+25,4a,0.1964,-0.0024
+26,8b,0.2254,-0.0013
+27,6b,0.1854,-0.0158
+28,7c,0.2230,0.0041
+29,3b,0.2721,0.0048
+30,5b,0.2058,-0.0223
+31,6c,0.1973,-0.0031
+32,9c,0.2404,0.0059
diff --git a/grid/grid_param_front.txt b/grid/grid_param_front.txt
index a8782d8..f2992d3 100644
--- a/grid/grid_param_front.txt
+++ b/grid/grid_param_front.txt
@@ -36,4 +36,4 @@
 29	0.077942	50.202	0.0629	0.0460	0.0011	0.0029	0.3597	0.0446	1.180051
 30	0.160430	10.117	0.0747	0.0772	0.0007	0.0014	0.3903	0.0590	1.810433
 31	0.228535	109.322	0.0951	0.1190	0.0006	0.0014	0.3838	0.0595	2.070182
-32	0.682316	51.715	0.4884	0.3384	0.0018	0.0026	0.3980	0.0000	0.000000
\ No newline at end of file
+32	0.682316	51.715	0.4884	0.3384	0.0018	0.0026	0.3980	0.0000	0.000000
diff --git a/grid/nom_bkg_grid_transmission.txt b/grid/nom_bkg_grid_transmission.txt
new file mode 100644
index 0000000..b0376d4
--- /dev/null
+++ b/grid/nom_bkg_grid_transmission.txt
@@ -0,0 +1,14 @@
+;Nominal transmission factors for on-axis grid transmission in BGK detector pixels ECMD - 18-Feb-21
+;N.B. tranmission for fully covered pixels is currently set to 0 
+0.1039555 
+0.0010396 
+0.0103956 
+0.0000000 
+0.0000000 
+0.0103956 
+0.0010396 
+0.1039555 
+0.0000000 
+0.0000000 
+0.0000000 
+0.0000000 
diff --git a/grid/nom_grid_transmission.txt b/grid/nom_grid_transmission.txt
new file mode 100644
index 0000000..9066f74
--- /dev/null
+++ b/grid/nom_grid_transmission.txt
@@ -0,0 +1,34 @@
+;Nominal transmission factors for on-axis grid transmission ECMD - 2-Feb-21
+;N.B. CFL and BKG detector tranmission is set to 0 
+0.3559085 
+0.2298681 
+0.2603604 
+0.2568778 
+0.2702536 
+0.2302091 
+0.3796341 
+0.2483881 
+0.0000000 
+0.0000000 
+0.2055873 
+0.2289985 
+0.0838536 
+0.2633221 
+0.2313121 
+0.2613568 
+0.2866279 
+0.1721743 
+0.2097021 
+0.2665489 
+0.2469983 
+0.2565149 
+0.2677553 
+0.2308408 
+0.2700689 
+0.2488385 
+0.2203447 
+0.2580339 
+0.3645456 
+0.2430636 
+0.2500564 
+0.2610453