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The Galactic globular clusters (GGCs) located towards the Galactic bulge havegenerally been excluded from large-scale photometric GGC surveys due to severetotal and differential extinction. Here, we present an overview of a HubbleSpace Telescope program designed to obtain deep, high spatial resolutionmultiband imaging of 16 poorly studied GGCs located towards the inner Galacticbulge and disk. In this first paper of a series resulting from theseobservations, we give an overview of target cluster selection, observations anddata reduction procedures for optimizing the resulting photometric catalogs.Artificial star tests are used to compare the respective advantages ofdifferent data reduction strategies in terms of photometric and astrometricprecision and photometric incompleteness. We present the resultingcolor-magnitude diagrams (CMDs) of all target clusters in severalcolor-magnitude planes, along with CMDs of comparison fields from parallelobservations. For each target cluster, we summarize existing studies, anddiscuss their CMDs qualitatively in the context of these results.

Deep Hubble Space Telescope Imaging of Globular Clusters Towards the Galactic Bulge: Observations, Data Reduction and Color-Magnitude Diagrams