DKIST

DKIST (for Daniel K. Inouye Solar Telescope, earlier called the Advanced Technology Solar Telescope, ATST) is a National Solar Observatory (NSO) 4-meter solar telescope at Haleakala Observatory, Hawaii. It is an off-axis Gregorian telescope, which saw first light in 2019 and began operation in 2021. Instruments:

• VBI - visible broadband imager.
• ViSP - visible spectropolarimeter.
• VTF - visible tunable filter.
• DL-NIRSP - diffraction-limited near-infrared spectropolarimeter.
• Cryo-NIRSP - cryogenic near-infrared spectropolarimeter.