A dataset provided by the European Space Agency

Obs ID 1328792
Target/Line-of-sight HD 80606
Gaia DR2 ID Gaia DR2 1019003226022657920
URL https://cheops.unige.ch/archive_browser/?visit-id=1328792
DOI https://doi.org/10.5270/esa-jm2aszk
Author European Space Agency
Description of observation
  • Target RA (J2000): 140.656570 °
  • Target Dec (J2000): 50.60373 °
  • Gaia GMag: 8.82

  • Programme ID: CH_PR110044
  • Programme Manager: DELINE
  • PI of observing programme: Benz
  • Title of programme: ATMOS.CHAR - Flash heating of an eccentric gas giant
  • Abstract: This program will observe the very eccentric (e > 0.9) planetary system HD 80606 over 7.5 consecutive days to cover a phase curve range from the occultation to the transit of the planet (including the periastron passage). The prime goal is to detect photometric signal due to stellar light reflected from the planet (geometric albedo) during the occultation and assess the presence of atmospheric clouds. A possible detection of varying geometric albedo could allow us to constrain cloud evaporation caused by the increasing irradiation as the star-planet distance decreases. The coverage of the transit will provide highly precise planet-to-star radii ratio together with the capacity to probe the environment of the giant planet for potential ring, satellite or torus. Finally, this will be first observation of both occultation and transit of HD 80606 b in a single visit, which will allow the precise calculation of the relative timing between the two conjunctions. This value will be key for the analysis of already existing HST and TESS data.
Temporal Coverage 2021-01-01T01:38:00Z / 2021-01-04T21:50:00Z
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 2024-10-31T19:59:33Z
Keywords CHEOPS, EXOPLANETS, wide-band photometer
Acknowledgements https://www.cosmos.esa.int/web/cheops-guest-observers-programme/publication-guidelines
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2024, 'HD 80606', 3.0, European Space Agency, https://doi.org/10.5270/esa-jm2aszk