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Organizing Jovian Dopplergram Data

Presentation #103.07 in the session The Sun and Solar System.

Published onJul 01, 2023
Organizing Jovian Dopplergram Data

The physical properties of the inner cores of the giant planets are poorly known. To date, such investigations have been limited to measuring gravitational influences from a handful of orbital probes. The most recent attempt to map the interior is via PMODE (the Planetary Multilevel Oscillations and Dynamics Experiment, used on the Haleakala 3.6m telescope), designed to probe the Jovian core by collecting Dopplergrams. Small radial velocity shifts from Jupiter’s upper cloud decks enable us to map its atmospheric dynamics and consequently its interior via dioseismology (techniques akin to helioseismology, applied to Jupiter). This campaign produced a rich dataset with >50,000 x 30-sec exposures over 24 nights. These unique data currently lack basic archival header information such as pointing locations, planetary latitude, instrumental statistics etc., which makes efficient analysis challenging. Our goal is to collect and insert required header information automatically into each individual FITS file so that we may upload the entire database to NASA’s Planetary Data System for the general scientific community. The indexed catalog will open up a significant wealth of data for further study of Jupiter’s interior. We present the current status of this project, the ultimate end goals and a plan for future analysis.

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