A dataset provided by the European Space Agency

Obs ID 2771302
Target/Line-of-sight SoM - Pre-PLATO TTVIGIL (Transit Timing Variation observations to fill In Gaps In Long-baseline data)
Gaia DR2 ID Gaia DR2 4608935250790855296
URL https://cheops.unige.ch/archive_browser/?visit-id=2771302
DOI https://doi.org/10.57780/esa-759tzcw
Author European Space Agency, Benz
Description of observation
  • Target RA (J2000): 267.640502929688 °
  • Target Dec (J2000): 36.5702209472656 °
  • Gaia GMag: 10.486
  • Programme ID: CH_PR149004
  • Programme Manager: WILSON
  • PI of observing programme: Benz
  • Title of programme: SoM - Pre-PLATO TTVIGIL (Transit Timing Variation observations to fill In Gaps In Long-baseline data)
  • Abstract: Important current questions of exoplanet science require an underlying precise determination of planet internal structures that can be done by studying their mass and/or orbital evolution. Transit timing variations (TTVs) can bypass stellar activity issues that can hinder RVs observations to achieve accurate mass determination, and transit timing monitoring may reveal tidal decay that can inform the orbital evolution history of planets. The accuracy of these methods is mainly driven by 1) the knowledge of individual transit centre times and 2) the number of transits obtained, and their baseline and sampling. PLATO will launch at the end of 2026 and focus on the detection of new exoplanets around bright stars. A supplementary scientific outcome will be the continuous observation of known exoplanets that will provide TTV/tidal decay monitoring. However, to constrain planetary masses and orbit evolution we need to fill in gaps in the long-baseline data between the discovery transits and those that PLATO will observe. To do this we will observe transits of known exoplanets in the PLATO long- stare fields that are visible by CHEOPS.
Temporal Coverage 2025-05-26T07:31:56Z / 2025-05-26T21:22:00Z
Version 3.0
Mission Description CHEOPS (Benz et al., https://doi.org/10.1007/s10686-020-09679-4) is a European Space Agency (ESA) mission in partnership with Switzerland with important contributions to the payload and the ground segment from Austria, Belgium, France, Germany, Hungary, Italy, Portugal, Spain, Sweden and the United Kingdom.

The satellite has a single payload comprising an ultra-high precision photometer covering the 330 - 1100 nm wavelength range in a single photometric band. Observations are made as part of the Guaranteed Time Observing Programme that is formulated by the CHEOPS Science Team, and the Guest Observers Programme through which the Community at large can apply for CHEOPS time.
Creator Contact https://www.cosmos.esa.int/web/cheops/contact
Date Published 2026-03-05T11:41:53Z
Keywords CHEOPS exoplanet data, ESA CHEOPS mission dataset, exoplanet transit photometry data, high-precision space photometry observations, exoplanet light curves dataset, ultra-high precision stellar photometry, transit depth measurements, exoplanet radius determination data, time-series photometric observations, short-cadence photometry dataset, CHEOPS calibrated level 2 data, aperture photometry space data, stellar variability monitoring data, transiting exoplanet observations, hot Jupiter transit photometry, super-Earth transit data, exoplanet ephemeris refinement observations, phase curve photometry dataset, space-based optical photometry, visible wavelength exoplanet data, FITS light curve files, flux time-series exoplanet data, CHEOPS observation ID dataset, exoplanet follow-up observations, stellar host characterization photometry, ESA CHEOPS science archive data, precision transit timing measurements
Acknowledgements https://www.cosmos.esa.int/web/cheops-guest-observers-programme/publication-guidelines
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Benz et al., 2026, 'SoM - Pre-PLATO TTVIGIL (Transit Timing Variation observations to fill In Gaps In Long-baseline data)', 3.0, European Space Agency, https://doi.org/10.57780/esa-759tzcw