This is the collection of reduced spectra from the high-resolution near-infrared spectrograph NIRPS (Near Infra-Red Planet Searcher) in operation at the ESO La Silla 3.6m telescope.

NIRPS complements HARPS, extending its capability into the infrared. It offers a wavelength range from 970 to 1850 nm. The median resolving power is 82000 in the High Accuracy mode and 75000 in High Efficiency mode. The spectrograph is fed with two fibres, fibre A is placed on the object, fibre B can be used to either measure the sky background or to simultaneously collect light from a reference calibration source. A Fabry-Perot (FP) cavity is the operationally used simultaneous reference which allows to measure the instrumental drift between the night-time observation and the daytime wavelength calibration.

The release covers all NIRPS science data in both HA and HE modes. All data have been reduced automatically using the Data Reduction Software (DRS) pipeline version 3.2.6 or higher developed by the NIRPS Consortium and made publicly available to the community. It includes extraction of the spectrum, flat fielding, wavelength calibration, flux calibration and telluric correction. Sky subtraction can only be performed if fibre B is placed on sky. A cross correlation with a stellar reference mask is executed in order to calculate the radial velocity (RV) of the observed object.

This is an open stream release. It is complete from start of operations on 1st April 2023 until present. Data content is not fixed but grows with time as new data is acquired and processed.

The spectra and associated data products are available from the ESO Science Archive Facility, either from the web-based interactive Science Portal or via Table Access Protocol, along with comprehensive data release documentation. The DOI assigned to the NIRPS data collection is 10.18727/archive/92.