LNE-SYRTE is responsible for primary metrology missions of gravimetry in France. At the Trappes site , the iGrav #005 superconducting gravimeters and the CAG transportable absolute atomic gravimeter  are operating. This laboratory has been designed to accommodate other gravimeters for metrological comparisons tests and calibrations [3, 4]. The team's primary activity is to provide the absolute value of g continuously to the neighbouring Kibble balance experiment, previously for Planck constant determination and now for the implementation of the new definition of the kilogram . Research activities are aimed at both improving the accuracy of the CAG, of 20nm.s-2  currently , to a level below 10nm.s-2, and its long term sensitivity, of 0.6nm.s-2 currently, to a level below 0.1nm.s-2.
The description of the formats/products can be found in the EOST products document.
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If you use these data, please cite: Merlet, S. and F. Pereira dos Santos (2020): Superconducting Gravimeter Data from LNE-SYRTE Trappes - Level 1. GFZ Data Services. http://doi.org/10.5880/igets.tr.l1.001.
 S. Merlet, A. Kopaev, M. Diament, G. Genevès, A. Landragin and F. Pereira Dos Santos, Microgravity investigations for the LNE watt balance project, Metrologia 45 (2008), 265-274.
 A. Louchet-Chauvet, T. Farah, Q. Bodart, A. Clairon, A. Landragin, S. Merlet, F. Pereira Dos Santos, Influence of transverse motion within an atomic gravimeter, New J. of Phys. 13 (2011) 065025.
 S. Merlet, Q. Bodart, N. Malossi, A. Landragin, F. Pereira Dos Santos, O. Gitlein and L. Timmen, Comparison between two mobile absolute gravimeters : optical versus atomic interferometers, Metrologia 47 (2010), L9-L11.
 A. Louchet-Chauvet, S. Merlet, Q. Bodart, A. Landragin, F. Pereira Dos Santos, H. Baumann, G. D'Agostino and C. Origlia, Comparison of 3 absolute gravimeters based on different methods for the e-MASS project, IEEE Trans. on Instrum. Meas. 60 (2011), 2527-2532.
 M. Thomas, D. Ziane, P. Pinot, R. Karcher, A. Imanaliev, F. Pereira Dos Santos, S. Merlet, F. Piquemal and P. Espel, A determination of the Planck constant using the LNE Kibble balance in air, Metrologia 54 (2017) 468-480.
 R. Karcher, A. Imanaliev, S. Merlet and F. Pereira Dos Santos, Improving the accuracy of atom interferometers with ultracold atoms, New J. of Phys. 20 (2018) 113041.