A dataset provided by the European Space Agency

Name Geospace Regions and Magnetospheric Boundaries (GRMB) identification dataset
Mission Cluster
URL https://csa.esac.esa.int/csa-sl-tap/data?RETRIEVAL_TYPE=product&DATASET_ID=C*_CT_AUX_GRMB*&START_DATE=2000-07-16T00:00:00Z&END_DATE=2026-08-22T00:00:00Z&DELIVERY_INTERVAL=ALL
DOI https://doi.org/10.57780/esa-85c563c
Abstract This Cluster auxiliary dataset locates each Cluster spacecraft in geospace.
Description The GRMB dataset provides the location of the 4 Cluster spacecraft in geospace based on 15 different labels.

Dataset IDDataset content
C1_CT_AUX_GRMBCluster 1 location in the geospace
C2_CT_AUX_GRMBCluster 2 location in the geospace
C3_CT_AUX_GRMBCluster 3 location in the geospace
C4_CT_AUX_GRMBCluster 4 location in the geospace

Cluster Exchange Format (CEF) metadata dictionary: see https://caa.esac.esa.int/documents/CAA-MDD-0001_v36.pdf
Previous list of magnetopause crossings list (2001-2009): see https://www.cosmos.esa.int/web/csa/crossings-techniques
Publication Grison, B., Darrouzet, F., Maggiolo, R. et al. Localization of the Cluster satellites in the geospace environment. Sci Data 12, 327 (2025). https://doi.org/10.1038/s41597-025-04639-z
Temporal Coverage 2001-01-01 - 2022-12-31
Mission Description Cluster is the first constellation of four scientific spacecraft to study the Earth-Sun connection in three dimensions. Cluster offers unique opportunities to investigate physical processes in near-Earth space. Those processes are essential to study and understand the effects of the Sun on the vast Earth’s environment that is a highly varying system both in time and space. The four Cluster spacecraft in a polar orbit are unique in their ability to obtain a three-dimensional picture of medium and large-scale plasma structures. The varying Cluster spacecraft formation from 3 km to a few tens of thousands kilometres along the orbit enables multi-point local measurements of different regions at different scales that cannot be done with any other space mission.

Escoubet, C.P., et al., The Cluster mission, Ann. Geophys., 19, 1197, 2001; https://doi.org/10.5194/angeo-19-1197-2001
Escoubet, C.P., et al., Cluster - Science and Mission Overview, Space Sci. Rev., 79, 11-32, 1997; https://doi.org/10.1023/A:1004923124586
Escoubet, C.P., et al., Cluster After 20 Years of Operations: Science Highlights and Technical Challenges, JGR: Space Physics, 126, 2021, e2021JA029474; https://doi.org/10.1029/2021JA029474
Masson, A., et al., The pioneer Cluster mission: preparation of its legacy phase near re-entry, Earth, Planets and Space, 76, 114, 2024; https://doi.org/10.1186/s40623-024-02060-1
Creator Contact Benjamin Grison, Institute of Atmospheric Physics, Czech Academy of Science, Czechia, grison@ufa.cas.cz
Publisher And Registrant European Space Agency
Credit Guidelines When publishing any works related to this dataset, please cite the reference publication:
Grison, B., Darrouzet, F., Maggiolo, R. et al. Localization of the Cluster satellites in the geospace environment. Sci Data 12, 327 (2025). https://doi.org/10.1038/s41597-025-04639-z