The Rockets for Extended-source X-ray Spectroscopy: instrument updates, results from the first flight, and future outlook

The Rockets for Extended-source X-ray Spectroscopy (tREXS) are a series of sounding rocket instruments designed to detect diffuse soft-X-ray emission from astrophysical sources. tREXS house a multi-channel grating spectrograph that uses passive, mechanical beam shapers, arrays of co-aligned reflection gratings, and an extended focal plane based around Teledyne CIS 113 CMOS sensors. We present here an update on the instrument, results from the first flight, and a discussion of the future outlook.