Table 1. Side-by-Side Comparison of the Three Direct Sun Instruments


	FTUVS	MF-DOAS	Pandora

Instrument spectral range	488-498 nm	282-498 nm	265-500 nm
Spectral window for NO2 fit	488-498 nm	405-430 nm	370-500 nm
Spectral resolution	~0.001 nm	~0.8 nm	~0.4 nm
Total integration time	17 min	20 ms-60 s	20 s
Number of scans per cycle	40	1	50-2500
Spectral sampling of the grating spectrometers		7.8 pixels per FWHM	3 pixels per FWHM