3-COLOR MESSENGER MDIS MAP PROJECTED MULTISPECTRAL RDR V1.0

This product has higher spatial resolution than, and complements, an 8-color multispectral map acquired during the primary mission. This product is photometrically normalized to a solar incidence angle (i) : 30 degrees, emission angle (e) : 0 degrees, and phase angle (g) : 30 degrees at a spatial sampling of 128 pixels per degree. The map is divided into 'tiles', each representing the NW, NE, SW, or SE quadrant of one of the 13 non-polar or one of the 2 polar quadrangles or 'Mercury charts' already defined by the USGS.

Each tile is composed of 3 bands corresponding to 3 of the 11 WAC filters. Each tile also contains backplanes describing ancillary information. The subset of 3 of 11 available multispectral filters samples both albedo and spectral slope over MDIS's wavelength range.

The fewer colors than in the Primary Mission 8-color product is to balance the higher spatial resolution to manage data volume during acquisition.