Mission OverviewBUBO logo showing an owl and a sun inside a lyre

The MUlti-slit Solar Explorer (MUSE) is a satellite currently being designed by Lockheed Martin with the objective of studying the sun's atmosphere and understanding the physical mechanisms that drive coronal heating and eruptions (solar flares and coronal mass ejections).  The satellite will contain two state of the art instruments, an extreme ultraviolet (EUV) multi-slit spectrograph and a high-resolution imager that will work in tandem to observe the sun in greater detail and at faster timescales than ever before.  

The Student Built Ultraviolet Burst Observer (BUBO) is an instrument included in the MUSE mission that will be designed, fabricated, and tested by SSEL students. It is a full-sun field of view instrument that will be mounted on the deck of the MUSE satellite. BUBO detects light through three separate channels sensitive to EUV, soft x-ray (SXR), and hard x-rays (HXR) at a cadence of 100 Hz. Although BUBO is not an imager, it will be able to locate signals on the sun's surface to a precision of approximately 1500 km. This instrument is investigating if there are sub-second, quasi-periodic pulsations (QPPs) in SXR, HXR, and EUV during a solar flare, what is the thermal evolution of the late phase of a solar flare on a centi-second timescale, and the dynamic nature of flare ribbons. 


The BUBO team will be presenting the preliminary design for the instrument during the MUSE preliminary design review with NASA in March 2024.

BUBO is slated to be delivered to Lockheed Martin at the end of 2026 and the MUSE satellite is scheduled to launch in 2027.