SUNRISE

SUNRISE is a balloon-borne 1-meter solar telescope (designed to be very light weight). It has made three flights, termed SUNRISE I (June 2009), SUNRISE II (June 2013) and SUNRISE III (July 2022), with a fourth flight in development for June 2024. Collaborators include NASA, the MPIA, the NAOJ, and a Spanish consortium. Observations have been largely spectropolarimetry, and have included near infrared, visible light, and ultraviolet. SUNRISE III instruments:

• SUSI (Sunrise Ultraviolet Spectropolarimeter and Imager).
• TuMAG (Tunable Magnetograph) spectropolarimeter.
• SCIP (Sunrise Chromospheric Infrared Spectropolarimeter).

Some instruments on the earlier flights:

• CWS (Correlating Wavefront Sensor) - CCD-based wavefront sensor.
• SuFI (Sunrise Filter Imager) - ultraviolet filtered imager.
• IMaX (Imaging Magnetograph Experiment) - visible-light instrument looking to measure Zeeman effect on an iron spectral line.
• SUPOS - near-infrared spectropolarimeter.