Camera 2, Filter F204M Notes: Methane band. Thermal background important. Central wavelength: 2.0353 μm Mean wavelength: 2.0356 μm Peak wavelength: 2.0634 μm Wavelength range: 1.98–2.08 μm FWHM: 0.1043 μm Maximum throughput: 28.261% Central pixel fraction: 0.089 Figure A.26: NIC2, F204M Throughput