STK/Terrain, Imagery, & Maps, or STK/TIM, is a module that consists of geospatial data. It offers users convenience when searching for terrain and imagery as an additional and readily available data source. The table below describes STK/TIM’s four datasets that enhance the analyses within STK Professional Edition.

Dataset	Extent	Close-up	Info
SRTM ver 4.1 (Shuttle Radar Topography Mission) details			Terrain 90 meter resolution
NED (National Elevation Dataset) details			Terrain 30 meter resolution
EarthSat NaturalVue covering Korea details			Imagery 15 meter resolution
Microsoft Bing Maps details			Streaming Imagery and Maps (sub meter resolution in some places)

The SRTM, NED, and EarthSat datasets can be queried and downloaded from a server at AGI using the AGI Download Utility. Once downloaded, these three datasets are local to the user. Microsoft Bing Maps™ (formerly Microsoft Virtual Earth), on the other hand, is akin to Web mapping and it relies on data streaming over an Internet connection.