This directory contains selected datasets related to the measurements made by the instruments onboard the Cluster spacecraft 1 (Rumba). Subdirectory names and their content descriptions: /cis-codif/ Composition and Distribution Function analyser (CODIF) of Cluster Ion Spectrometry (CIS) experiment /cis-hia/ Hot Ion Analyser (HIA) of Cluster Ion Spectrometry (CIS) experiment /cp/ Cluster Parameter /edi/ Electron Drift Instrument (EDI) /efw/ Electric Field and Wave experiment (EFW) /fgm/ Fluxgate Magnetometer (FGM) /graphics/ Pre-generated 6-hour and one-orbit quicklook plots that can be browsed with Plot Walk (https://spdf.gsfc.nasa.gov/plot_walk/) /jp/ JSOC Catalogues (ISE=Identified Science Events; PMP=Predicted Magnetic Positions; PSE=Predicted Scientific Events) /pea-heea/ High Energy Electron Analyser (HEEA) of Plasma Electron And Current Experiment (PEACE) /pea-leea/ Low Energy Electron Analyser (LEEA) of Plasma Electron And Current Experiment (PEACE) /pea/ Plasma Electron And Current Experiment (PEACE) /pp/ Prime Parameters /rap-ies/ Imaging Electron Spectrometer (IES) of Research with Adaptive Particle Imaging Detectors (RAPID) /rap-iims/ Imaging Ion Mass Spectrometer (IIMS) of Research with Adaptive Particle Imaging Detectors (RAPID) /sta/ Spatio-Temporal Analysis of Field Fluctuation experiment (STAFF) /up/ Unvalidated Prime Parameters /wbd/ Wide Band Data instrument (WBD) /wbd_bm2/ Burst Mode 2 (BM2) of Wide Band Data instrument (WBD) /whi/ Waves of High frequency and Sounder for Probing of Electron density by Relaxation experiment (WHISPER)