– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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2020 BIPM-APMP Training course: Timescale and Algorithms

BIPM-APMP Training course

The BIPM and APMP are organizing a joint training initiative on Timescale and Algorithms ("TTA2020"). The training is intended to support institutes in the improvement of national standard time, national services in Time and Frequency metrology, and contributions to Coordinated Universal Time (UTC) through participation in BIPM Circular T / Key Comparison CCTF-K001.UTC.

The programme will cover the practical aspects that will enable participants to gain a basic knowledge in national time scale generation, measurements and evaluation of the data, and steering to UTC. The course includes practical exercise in data analysis and open source software code for data processing and evaluations will be provided. Detailed information on the training brochure.


  • Programme highlights:

  • Basic knowledge
    of creating a timescale
    • Generation of UTC timescale
    • Realization of a UTC(k)
    • How to design a system
    • Example of actual UTC(k) systems
    Clock data analysis
    • Clock behaviour
    • Exercise 1: Checking typical noise,
      estimation of Allan deviation
    Time comparison for timescales
    • Time scale comparison by GNSS
    Good data acquisition
    • Measurement, errors and calibration
    • Exercise 2: Checking measurement data
      (plotting, fitting, filtering)
    • Exercise 3: Anomaly detection
    Simulation of atomic timescales
    • Calculation of an average timescale
    • Exercise 4: Computing a timescale (simulation)
    • Exercise 5: Supplementary training
      (grouping on different subject)
    General framework
    • Regional framework
    • International framework


  • Expected participants:
    • This training is designed for experts who are/will be in charge of operating national standard time and participating in UTC, or who are already contributing but have encountered difficulties with data quality. Conditions for candidates are given in the application document.
    • Some participants from APMP may receive support from the MEDEA project. Experts from other RMOs are welcome at their own expenses. For organization reasons, the number of participants is limited to 25.

  • Dates and venue:
    • 1-3 July 2020, Bangkok, Thailand. More information on the dedicated webpage.
      The course has been postponed due to the Covid-19 pandemic. Further information and new dates will be given as soon as possible.

  • Application process:

  • Support/sponsor:
    • Financial support by the APMP-APLMF-PTB MEDEA project and LNE-SYRTE.
    • Organization support by NIMT, Thailand.


    BIPM CB&KT programme