What is the OMI swath?
The instantaneous swath of any imaging instrument, including OMI, is the width of the region that is actually observed across the track of the instrument at any time during any particular overflight. The global measurement mode is the default mode, sampling the complete swath of 2600 km for the complete wavelength range. The ground pixel size at nadir position in the global mode is 13 x 24 km2 (along-track x cross-track) for the UV-2 and VIS channels, and 13 x 48 km2 for the UV-1 channel. The spatial zoom-in mode has a nadir ground pixel size of 13 x 12 km2, but the swath width has a minimum of 725 km. The spatial zoom-in mode is used one day each 32 days, always above the same geo-locations. In the spectral range of 264-311 nm, the pixel size in the cross-track direction is twice as large (that is, a nadir ground pixel size of 13 x 24 km2). The swath is symmetric with respect to the sub-satellite track. The spatial zoomin mode results in two products: • A Zoom Radiance product consist
