Today's Data Granule Maps
The Aqua satellite on which AIRS flies makes two passes per day over the globe, orbiting Earth from pole to pole. On the ascending pass, the satellite is moving from the south pole to north pole. On the descending pass, the satellite is moving from the north pole to the south pole.
The AIRS instrument sweeps along the orbit gathering data. The data is then sectioned into pieces called "granules". Each AIRS data granule is roughly 2250 x 1650 kilometers, or 1400 x 1025 miles. AIRS data users use maps like these when making requests from AIRS data servers.
Maps are updated at the top of the hour
(8:00, 9:00, 10:00...)
Latest ASCENDING granule map
satellite is moving from the south pole to the north pole
Latest DESCENDING granule map
satellite is moving from the north pole to the south pole
Latest NORTH POLAR granule map
Latest SOUTH POLAR granule map