The Hyperfine Transition for the Definition of the Second

Arias, E. F.; Petit, Gérard

doi:10.1002/andp.201900068

Cited by 14 publications

(7 citation statements)

References 31 publications

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“…The clock correction chain used by TEMPO2 to transfer the ToA reference from the Observatory clock to TT(BIPM18) is UTC(PKS)→UTC(GPS)→TT(TAI)→TT(BIPM18). TT(TAI)-UTC(GPS) is obtained from Circular T of the BIPM and the post-corrected timescales TT(BIPMxx)-TT(TAI), where xx is the year (20xx), are published annually by the BIPM-see Arias & Petit (2019) for a recent discussion of reference timescales.…”

Section: The Ppta Dr2 Timing Data Setmentioning

confidence: 99%

The Parkes Pulsar Timing Array project: second data release

Kerr

Reardon

Hobbs

et al. 2020

Publ. Astron. Soc. Aust.

165

125

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We describe 14 yr of public data from the Parkes Pulsar Timing Array (PPTA), an ongoing project that is producing precise measurements of pulse times of arrival from 26 millisecond pulsars using the 64-m Parkes radio telescope with a cadence of approximately 3 weeks in three observing bands. A comprehensive description of the pulsar observing systems employed at the telescope since 2004 is provided, including the calibration methodology and an analysis of the stability of system components. We attempt to provide full accounting of the reduction from the raw measured Stokes parameters to pulse times of arrival to aid third parties in reproducing our results. This conversion is encapsulated in a processing pipeline designed to track provenance. Our data products include pulse times of arrival for each of the pulsars along with an initial set of pulsar parameters and noise models. The calibrated pulse profiles and timing template profiles are also available. These data represent almost 21 000 h of recorded data spanning over 14 yr. After accounting for processes that induce time-correlated noise, 22 of the pulsars have weighted root-mean-square timing residuals of $<\!\!1\,\mu\text{s}$ in at least one radio band. The data should allow end users to quickly undertake their own gravitational wave analyses, for example, without having to understand the intricacies of pulsar polarisation calibration or attain a mastery of radio frequency interference mitigation as is required when analysing raw data files.

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Section: The Ppta Dr2 Timing Data Setmentioning

confidence: 99%

The Parkes Pulsar Timing Array project: second data release

Kerr

Reardon

Hobbs

et al. 2020

Publ. Astron. Soc. Aust.

165

125

View full text Add to dashboard Cite

show abstract

“…The clock correction chain used by t e m p o 2 to transfer the ToA reference from the Observatory clock to TT(BIPM18) is UTC(PKS)→UTC(GPS)→TT(TAI)→TT(BIPM18). TT(TAI)-UTC(GPS) is obtained from Circular T of the BIPM and the post-corrected time scales TT(BIPMxx)-TT(TAI), where xx is the year (20xx), are published annually by the BIPM -see Arias & Petit (2019) for a recent discussion of reference timescales.…”

Section: The Ppta Dr2 Timing Data Setmentioning

confidence: 99%

The Parkes Pulsar Timing Array Project: Second data release

Kerr,

Reardon,

Hobbs

et al. 2020

Preprint

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We describe 14 years of public data from the Parkes Pulsar Timing Array (PPTA), an ongoing project that is producing precise measurements of pulse times of arrival from 26 millisecond pulsars using the 64-m Parkes radio telescope with a cadence of approximately three weeks in three observing bands. A comprehensive description of the pulsar observing systems employed at the telescope since 2004 is provided, including the calibration methodology and an analysis of the stability of system components. We attempt to provide full accounting of the reduction from the raw measured Stokes parameters to pulse times of arrival to aid third parties in reproducing our results. This conversion is encapsulated in a processing pipeline designed to track provenance. Our data products include pulse times of arrival for each of the pulsars along with an initial set of pulsar parameters and noise models. The calibrated pulse profiles and timing template profiles are also available. These data represent almost 21,000 hrs of recorded data spanning over 14 years. After accounting for processes that induce time-correlated noise, 22 of the pulsars have weighted root-mean-square timing residuals of < 1 µs in at least one radio band. The data should allow end users to quickly undertake their own gravitational-wave analyses (for example) without having to understand the intricacies of pulsar polarisation calibration or attain a mastery of radio-frequency interference mitigation as is required when analysing raw data files.

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“…The main activity of the Time Department is related to the computation and improvement of the reference time scale Coordinated Universal Time (UTC), its rapid approximation UTCr, and the contribution to the key comparison CCTF-K001.UTC [30][31][32]. In 2019, the department's research activities were devoted to the improvement and development of time transfer techniques, as well as to the analysis of the robustness of the current UTC and UTCr algorithms.…”

Section: Timementioning

confidence: 99%

News from the BIPM laboratories—2019

et al. 2020

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In order to fulfil its mission to ensure and promote the global comparability of measurements, the BIPM operates laboratories in the fields of physical metrology, time, ionizing radiation and chemistry. These laboratories act as centres for scientific and technical collaboration between Member States providing capabilities for international measurement comparisons on a sharedcost basis. They coordinate international comparisons of national measurement standards agreed to be of the highest priority, and they establish and maintain appropriate reference standards for use as the basis of key international comparisons at the highest level and provide selected calibrations from them.In the following sections, we provide highlights of the work they have undertaken during 2019.

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The Hyperfine Transition for the Definition of the Second

Cited by 14 publications

References 31 publications

The Parkes Pulsar Timing Array project: second data release

The Parkes Pulsar Timing Array project: second data release

The Parkes Pulsar Timing Array Project: Second data release

News from the BIPM laboratories—2019

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