Calibration of the TWSTFT link between OCA and OP using a GPS link calibration

Myrtille Laas-Bourez (1) , Clément Courde (1) , Etienne Samain (1) , Philippe Guillemot (2) , Joseph Achkar (3, 4) , Pierre Uhrich (3, 4) , J-L. Onetto (1) , Daniele Rovera (3, 4)

1 GEOAZUR 7329 - Géoazur
2 CNES - Centre National d'Études Spatiales [Toulouse]
3 SYRTE - Systèmes de Référence Temps Espace
4 Références micro-ondes et échelles de temps

Three independent time transfer techniques are in use in Observatoire de la Côte d'Azur (OCA): GPS, TWSTFT and T2L2. In Autumn 2013, a GPS receiver relative calibration campaign has been carried out. The result of this campaign, primary intended to compare GPS with T2L2, have allowed the calibration of the TWSTFT link between OCA and OP. We computed for OCA the value of CALR = -7111.9 ns, with an uncertainty U= 2.8 ns at k=2. From this calibration we caracterise the others links with the triangle closure technique.

Domaines: Astrophysique [astro-ph]

Myrtille Laas-Bourez, Clément Courde, Etienne Samain, Philippe Guillemot, Joseph Achkar, et al.. Calibration of the TWSTFT link between OCA and OP using a GPS link calibration. 28th European Frequency and Time Forum (EFTF), Jun 2014, Neuchâtel, Switzerland, Switzerland. ⟨10.1109/EFTF.2014.7331434⟩. ⟨hal-03734139⟩