The TES Aura L1B Spectra Nadir data contains spectra and noise-equivalent
spectral radiance (NESR) data, geolocation, engineering, production history,
and data quality information.
A Nadir sequence with in the TES Global Survey is two low resolution scans over ... the same ground locations. The Nadir standard product consists of four files,
where each file is composed of the Global Survey Nadir observations from one of
four focal planes for a single orbit, i.e. 72 orbit sequences. The Global
Survey Nadir observations currently only use a single set of filter mix.