Abstract
The SET HASDM density database is available for scientific studies
through a SQL database with open community access. The information in
the SET HASDM density database covers the period from January 1, 2000
through December 31, 2019. Data records exist every 3 hours during solar
cycles 23 and 24. The database has a grid size of 10{degree sign} ×
15{degree sign} (latitude, longitude) with 25 km altitude steps
between 175-825 km. A description of the source of the database, its
validation, its information content, and its accessibility are provided.