![Large Synoptic Survey Telescope Large Synoptic Survey Telescope](/download/attachments/123794839/image2019-6-27_15-54-17.png?version=1&modificationDate=1561643655950&api=v2)
Principle of operations
- 90% of the observing time of the telescope devoted to a deep-wide-fast survey
- one complete visit of the southern hemisphere sky every 3-4 nights, from 2022 for 10 years
- 43% of the celestial sphere will be covered by this survey
- each patch of the sky to be visited about 1000 times
Science themes determining the nature of dark energy and dark matter
- taking an inventory of the solar system
- exploring the transient optical sky
- mapping the structure and evolution of the Milky Way