THEMISasi

Reads and plots THEMIS ASI video data of aurora, including calibration for azimuth/elevation and coordinate transformations.

Read & plot 256x256 "high resolution" THEMIS ASI ground-based imager data from Python. THEMIS ASI data are collected with the original 2002 design, using Starlight-Xpress Lodestar MX716 cameras with monochrome Sony ICX249AL imaging chips. A subregion from full-size 752 x 582 pixels (512 x 512 pixels) are 2x2 binned to 256 x 256 pixels and retrieved over USB 1.1 for disk storage. This package also reads the THEMIS ASI star registered plate scale, giving azimuth and elevation for each pixel. The software supports downloading data concurrently using asyncio, loading calibration data with azimuth/elevation information, coordinate conversion to RA/Dec, video playback, and plotting pixel time series.