LESIA Observatoire de Paris-PSL CNRS vopdc cdpp Sorbonne Université cnes Université de Paris

Cassini/RPWS/HFR LESIA/Kronos Northern and Southern SKR Phase Systems V1.0

Thursday 4 March 2021, by Baptiste Cecconi

This collection is composed of the Southern and Northern SKR phase systems derived from Cassini/RPWS/HFR (Radio and Plasma Waves Science / High Frequency Receiver) measurements, as described in Lamy (2011).

This collection is part of the Cassini/RPWS/HFR LESIA/Kronos Collection (https://doi.org/10.25935/1SXH-AQ56).

Link to data repository

Description

The detailed content is described on the dedicated LESIA/Kronos SKR Periodicities page.

The data collection contains yearly ASCII files (also available in VOTable format) of the Southern and Northern SKR phase systems derived from Cassini/RPWS/HFR (Radio and Plasma Waves Science / High Frequency Receiver) measurements, as described in Lamy (2011).

Content

The collection is composed of 8 plain ASCII files (19.3 MB) containing data as described below:

  • Time (ISO-8601 format) Year-DoY HH:MM:SS
  • P_N: Northern SKR dominant period (decimal hours)
  • P_S: Southern SKR dominant period (decimal hours)
  • Phi_N: Northern SKR phase system (degrees)
  • Phi_S: Southern SKR phase system (degrees)
  • Drift_N: Northern SKR Peak phase (degrees)
  • Drift_S: Northern SKR Peak phase (degrees)

The Phi_N and Phi_S are the Northern and Southern phases at the current time. The Phase system is adjusted such as the SKR emission intensity peaks at Phi=0. The Drift_N and Drift_S are peak phases in a fixed periodicity frame, set to 10.7928 h and 10.6 h for the Southern and Northern sources, respectively).

Coverage and sampling

  • Time range: 2004-001 (Jan. 1st) to 2010-193 (July 12th).
  • Time resolution is 3 minutes.

Acknowledgements

The Cassini/RPWS Southern and Northern SKR phase systems collection has been produced by L. Lamy, from the Observatoire de Paris/LESIA Cassini-RPWS team, with the support of CNRS and CNES.

Contact

Any other question or request should be addressed to contact.maser@obspm.fr

References

  • Lamy, L. 2011. " Variability of Southern and Northern SKR Periodicities". Proceedings of the 7th International Workshop on Planetary, Solar and Heliospheric Radio Emissions, p. 39-50, Graz, Austria. doi:10.1553/PRE7s39

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