The 200k series

Standard procedure: "the Martian surface is covered in 10,372 individual sheets in equal-area projections:

• Sinusoidal Projection for latitudes between 85° north and south and
• Lambert Azimuthal Equal-Area Projection around the poles.

While all map sheets cover 2° in latitude, the longitude extent increases from 2° in the equatorial zone towards 360° at the poles.

More Information

Based on: HRSC data

Editors: Alberz J, Jaumann R, Neukum G (TU, DLR, FUB)

Date: 2005-2007

References 

https://astrogeology.usgs.gov/search/map/Research/ISPRS/ISPRS_465_J_Albertz

"Each map sheet has been generated automatically using the software PIMap" (Source)