Direct comparisons of European primary and secondary frequency standards via satellite techniques

F. Riedel; A. Al-Masoudi; E. Benkler; S. Dörscher; V. Gerginov; C. Grebing; S. Häfner; N. Huntemann; B. Lipphardt; C. Lisdat; E. Peik; D. Piester; C. Sanner; C. Tamm; S. Weyers; H. Denker; L. Timmen; C. Voigt; D. Calonico; G. Cerretto; G. A. Costanzo; F. Levi; I. Sesia; J. Achkar; J. Guéna; M. Abgrall; D. Rovera; B. Chupin; C. Shi; S. Bilicki; E. Bookjans; J. Lodewyck; R. Le Targat; P. Delva; S. Bize; F. N. Baynes; C. F.A. Baynham; W. Bowden; P. Gill; R. M. Godun; I. R. Hill; R. Hobson; J. M. Jones; S. A. King; P. B.R. Nisbet-Jones; A. Rolland; S. L. Shemar; P. B. Whibberley; H. S. Margolis

doi:10.48550/arXiv.1910.06736

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Originalsprache	Englisch
Aufsatznummer	045005
Fachzeitschrift	METROLOGIA
Jahrgang	57
Ausgabenummer	4
Publikationsstatus	Veröffentlicht - 21 Juli 2020

Abstract

We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-based frequency comparison techniques: broadband Two-Way Satellite Time and Frequency Transfer (TWSTFT) and Global Positioning System Precise Point Positioning (GPS PPP). With an enhanced statistical analysis procedure taking into account correlations and gaps in the measurement data, combined overall uncertainties in the range of 1.8 × 10-16 to 3.5 × 10-16 for the optical clock comparisons were found. The comparison of the fountain clocks yields results with a maximum relative frequency difference of 6.9 × 10-16, and combined overall uncertainties in the range of 4.8 × 10-16 to 7.7 × 10-16.

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Direct comparisons of European primary and secondary frequency standards via satellite techniques. / Riedel, F.; Al-Masoudi, A.; Benkler, E. et al.
in: METROLOGIA, Jahrgang 57, Nr. 4, 045005, 21.07.2020.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Riedel, F, Al-Masoudi, A, Benkler, E, Dörscher, S, Gerginov, V, Grebing, C, Häfner, S, Huntemann, N, Lipphardt, B, Lisdat, C, Peik, E, Piester, D, Sanner, C, Tamm, C, Weyers, S, Denker, H, Timmen, L, Voigt, C, Calonico, D, Cerretto, G, Costanzo, GA, Levi, F, Sesia, I, Achkar, J, Guéna, J, Abgrall, M, Rovera, D, Chupin, B, Shi, C, Bilicki, S, Bookjans, E, Lodewyck, J, Le Targat, R, Delva, P, Bize, S, Baynes, FN, Baynham, CFA, Bowden, W, Gill, P, Godun, RM, Hill, IR, Hobson, R, Jones, JM, King, SA, Nisbet-Jones, PBR, Rolland, A, Shemar, SL, Whibberley, PB & Margolis, HS 2020, 'Direct comparisons of European primary and secondary frequency standards via satellite techniques', METROLOGIA, Jg. 57, Nr. 4, 045005. https://doi.org/10.48550/arXiv.1910.06736, https://doi.org/10.1088/1681-7575/ab6745

Riedel, F., Al-Masoudi, A., Benkler, E., Dörscher, S., Gerginov, V., Grebing, C., Häfner, S., Huntemann, N., Lipphardt, B., Lisdat, C., Peik, E., Piester, D., Sanner, C., Tamm, C., Weyers, S., Denker, H., Timmen, L., Voigt, C., Calonico, D., ... Margolis, H. S. (2020). Direct comparisons of European primary and secondary frequency standards via satellite techniques. METROLOGIA, 57(4), Artikel 045005. https://doi.org/10.48550/arXiv.1910.06736, https://doi.org/10.1088/1681-7575/ab6745

Riedel F, Al-Masoudi A, Benkler E, Dörscher S, Gerginov V, Grebing C et al. Direct comparisons of European primary and secondary frequency standards via satellite techniques. METROLOGIA. 2020 Jul 21;57(4):045005. doi: 10.48550/arXiv.1910.06736, 10.1088/1681-7575/ab6745

Riedel, F. ; Al-Masoudi, A. ; Benkler, E. et al. / Direct comparisons of European primary and secondary frequency standards via satellite techniques. in: METROLOGIA. 2020 ; Jahrgang 57, Nr. 4.

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title = "Direct comparisons of European primary and secondary frequency standards via satellite techniques",

abstract = "We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-based frequency comparison techniques: broadband Two-Way Satellite Time and Frequency Transfer (TWSTFT) and Global Positioning System Precise Point Positioning (GPS PPP). With an enhanced statistical analysis procedure taking into account correlations and gaps in the measurement data, combined overall uncertainties in the range of 1.8 × 10-16 to 3.5 × 10-16 for the optical clock comparisons were found. The comparison of the fountain clocks yields results with a maximum relative frequency difference of 6.9 × 10-16, and combined overall uncertainties in the range of 4.8 × 10-16 to 7.7 × 10-16. ",

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TY - JOUR

T1 - Direct comparisons of European primary and secondary frequency standards via satellite techniques

AU - Riedel, F.

AU - Al-Masoudi, A.

AU - Benkler, E.

AU - Dörscher, S.

AU - Gerginov, V.

AU - Grebing, C.

AU - Häfner, S.

AU - Huntemann, N.

AU - Lipphardt, B.

AU - Lisdat, C.

AU - Peik, E.

AU - Piester, D.

AU - Sanner, C.

AU - Tamm, C.

AU - Weyers, S.

AU - Denker, H.

AU - Timmen, L.

AU - Voigt, C.

AU - Calonico, D.

AU - Cerretto, G.

AU - Costanzo, G. A.

AU - Levi, F.

AU - Sesia, I.

AU - Achkar, J.

AU - Guéna, J.

AU - Abgrall, M.

AU - Rovera, D.

AU - Chupin, B.

AU - Shi, C.

AU - Bilicki, S.

AU - Bookjans, E.

AU - Lodewyck, J.

AU - Le Targat, R.

AU - Delva, P.

AU - Bize, S.

AU - Baynes, F. N.

AU - Baynham, C. F.A.

AU - Bowden, W.

AU - Gill, P.

AU - Godun, R. M.

AU - Hill, I. R.

AU - Hobson, R.

AU - Jones, J. M.

AU - King, S. A.

AU - Nisbet-Jones, P. B.R.

AU - Rolland, A.

AU - Shemar, S. L.

AU - Whibberley, P. B.

AU - Margolis, H. S.

PY - 2020/7/21

Y1 - 2020/7/21

N2 - We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-based frequency comparison techniques: broadband Two-Way Satellite Time and Frequency Transfer (TWSTFT) and Global Positioning System Precise Point Positioning (GPS PPP). With an enhanced statistical analysis procedure taking into account correlations and gaps in the measurement data, combined overall uncertainties in the range of 1.8 × 10-16 to 3.5 × 10-16 for the optical clock comparisons were found. The comparison of the fountain clocks yields results with a maximum relative frequency difference of 6.9 × 10-16, and combined overall uncertainties in the range of 4.8 × 10-16 to 7.7 × 10-16.

AB - We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-based frequency comparison techniques: broadband Two-Way Satellite Time and Frequency Transfer (TWSTFT) and Global Positioning System Precise Point Positioning (GPS PPP). With an enhanced statistical analysis procedure taking into account correlations and gaps in the measurement data, combined overall uncertainties in the range of 1.8 × 10-16 to 3.5 × 10-16 for the optical clock comparisons were found. The comparison of the fountain clocks yields results with a maximum relative frequency difference of 6.9 × 10-16, and combined overall uncertainties in the range of 4.8 × 10-16 to 7.7 × 10-16.

KW - cesium fountain clocks

KW - GPS

KW - optical clocks

KW - remote clock comparison

KW - two-way satellite time and frequency transfer

KW - weighted autocovariance estimate

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U2 - 10.48550/arXiv.1910.06736

DO - 10.48550/arXiv.1910.06736

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VL - 57

JO - METROLOGIA

JF - METROLOGIA

SN - 0026-1394

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M1 - 045005

ER -

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Direct comparisons of European primary and secondary frequency standards via satellite techniques

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