699-416

SUB-APPENDIX F14 - WAC FM WEIGHTED RADIOMETRIC CONVERSION FACTORS PER FILTER COMBINATION
(for calibration testing performed with the sphere)
Integral of SpRad/pA*wind*optics*filt1*filt2*qe over wavelength (weights the SpRad*wind by the bandpasses of the components seeing the light)
Integral of optics*filt1*filt2*qe over wavelength
(weighting function to divide out)
Weighted Average of SpRad/pA Transmitted Through the Chamber Window (Integral #1 / Integral #2)
COMBO #
FILTER 1
FILTER 2
Integral #1
Integral #2
Result
1
CB2
CL2
1.3548
15.129
0.089549871
2
CB3
CL2
0.1295
0.65429
0.197924468
3
CB3
IRP0
0.12846
0.64901
0.197932235
4
CB3
IRP90
0.12486
0.64901
0.192385325
5
CL1
BL1
11.299
67.253
0.168007375
6
CL1
CL2
77.216
708.35
0.109008259
7
CL1
GRN
27.399
252.27
0.108609823
8
CL1
HAL
1.582
17.771
0.089021439
9
CL1
IR1
19.574
209.61
0.093382949
10
CL1
RED
29.006
298.31
0.097234421
11
CL1
VIO
1.874
8.2598
0.226882007
12
IR2
CL2
3.8399
35.079
0.109464352
13
IR2
IR1
1.3768
14.452
0.095267091
14
IR2
IRP0
3.7903
34.616
0.109495609
15
IR2
IRP90
3.7903
34.616
0.109495609
16
IR3
CL2
2.1199
11.377
0.186332073
17
IR3
IRP0
2.0996
11.264
0.186399148
18
IR3
IRP90
2.0996
11.264
0.186399148
19
IR4
CL2
0.50552
0.80286
0.629649005
20
IR4
IRP0
0.5015
0.79601
0.630017211
21
IR4
IRP90
0.5015
0.79601
0.630017211
22
IR5
CL2
0.12683
0.11926
1.063474761
23
IR5
IRP0
0.12616
0.11855
1.064192324
24
IR5
IRP90
0.12616
0.11855
1.064192324
25
MT2
CL2
0.67378
7.0989
0.094913296
26
MT2
IR1
0.61256
6.4539
0.094913153
27
MT3
CL2
0.24354
1.9548
0.124585635
28
MT3
IRP0
0.24086
1.9333
0.124584907
29
MT3
IRP90
0.24086
1.9333
0.124584907

SAMPLE CALCULATION - Shows an example of a calculation for the clear1/clear2 filter combination performed with data at every 50 nm (result slightly varies from value shown above). The values shown above were calculated from data interpolated at every 0.1 nm.

Spectral Radiance (SpRad) units are in nw/cm2 /sr/nm. With calibration testing performed with the sphere, each picoamp (pA) of measured light output provides the specified amount of SpRad units.

There are a total of 29 filter combinations.

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