Accurate geometric albedo, shape, and size of Hi’iaka from a stellar occultation [PDF]
Nature CommunicationsStellar occultations, when a distant object passes in front of a star and casts a shadow on Earth, are a powerful tool to probe the physical properties of solar system bodies.
Estela Fernández-Valenzuela +73 more
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Geophysical Research Letters, 2023 The shape of the two gas giants, Jupiter and Saturn, is determined primarily by their rotation rate, and interior density distribution. It is also affected by their zonal winds, causing an anomaly of O(10 km) at low latitudes.
E. Galanti, Y. Kaspi, T. Guillot
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On the capability of the future ALTIUS ultraviolet–visible–near-infrared limb sounder to constrain modelled stratospheric ozone [PDF]
Atmospheric Measurement Techniques, 2021 ALTIUS (Atmospheric Limb Tracker for the Investigation of the Upcoming Stratosphere) is the upcoming stratospheric ozone monitoring limb sounder from ESA's Earth Watch programme.
Q. Errera +8 more
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The Planetary Science Journal, 2023 In support of studies of decadal-timescale evolution of outer solar system atmospheres and ring systems, we present detailed Earth-based stellar occultation predictions for Jupiter, Saturn, Uranus, Neptune, Titan, and Triton for 2023–2050,
Richard G. French, Damya Souami
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Improved Determination of Europa's Long‐Wavelength Topography Using Stellar Occultations
Earth and Space Science, 2021 Europa Clipper will arrive at Jupiter at the end of this decade and will explore Europa through a series of flybys. One of its many goals is to characterize Europa's topography and global shape using the Europa Imaging System and Radar for Europa ...
Jacob N. H. Abrahams +6 more
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Retrieval of vertical profiles of atmospheric refraction angles by inversion of optical dilution measurements [PDF]
Atmospheric Measurement Techniques, 2015 In this paper, we consider occultations of celestial bodies through the atmospheric limb from low Earth orbit satellites and we show how the usual change of tangent altitude associated with atmospheric refraction is inseparably connected to a variation ...
D. Fussen +7 more
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ODNet: A Convolutional Neural Network for Asteroid Occultation Detection
The Astronomical Journal, 2022 We propose to design and build an algorithm that will use a convolutional neural network (CNN) and observations from the Unistellar Network to reliably detect asteroid occultations.
Dorian Cazeneuve +5 more
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Estimation of refractivity uncertainties and vertical error correlations in collocated radio occultations, radiosondes, and model forecasts [PDF]
Atmospheric Measurement Techniques, 2022 Random uncertainties and vertical error correlations are estimated for three independent data sets. The three collocated data sets are (1) refractivity profiles of radio occultation measurements retrieved from the Metop-A and B and COSMIC-1 missions, (2)
J. K. Nielsen +3 more
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CHIMERA Occultation Constraints on the Abundance of Kilometer-scale Kuiper Belt Objects
The Astronomical Journal, 2023 Occultations provide indirect sensitivity to the number density of small Kuiper Belt objects (KBOs) too faint to directly detect telescopically. We present results from the Caltech HI-speed Multicolor camERA (CHIMERA) survey with the Palomar Hale ...
Qicheng Zhang +5 more
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Evaluation of atmospheric profiles derived from single- and zero-difference excess phase processing of BeiDou radio occultation data from the FY-3C GNOS mission [PDF]
Atmospheric Measurement Techniques, 2018 The Global Navigation Satellite System (GNSS) Occultation Sounder (GNOS) is one of the new-generation payloads onboard the Chinese FengYun 3 (FY-3) series of operational meteorological satellites for sounding the Earth's neutral atmosphere and ...
W. Bai +29 more
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