Results 1 to 10 of about 1,344 (291)

Design and Simulation of Stellar Occultation Infrared Band Constellation

open access: yesRemote Sensing, 2022
This study provides an in-depth analysis of the characteristics of stellar occultation events. Using 10 target star sources, the influence of orbital elements on the number, duration, and distribution of stellar occultation events was simulated and ...
Qinglin Zhu
exaly   +5 more sources

Research on Stellar Occultation Detection with Bandpass Filtering for Oxygen Density Retrieval

open access: yesRemote Sensing, 2023
Stellar occultation instruments detect the transmission of stellar spectra through the planetary atmosphere to retrieve densities of various atmospheric components.
Zhaoai Yan, Junfeng Yang
exaly   +4 more sources

Oxygen and Air Density Retrieval Method for Single-Band Stellar Occultation Measurement

open access: yesRemote Sensing
The stellar occultation technique is capable of atmospheric trace gas detection using the molecule absorption characteristics of the stellar spectra. In this paper, the non-iterative and iterative retrieval methods for oxygen and air density detection by
Cui Tu, Junfeng Yang, Zhaoai Yan
exaly   +4 more sources

Comparison and Analysis of Stellar Occultation Simulation Results and SABER-Satellite-Measured Data in Near Space

open access: yesRemote Sensing, 2022
In this study, we analyze the accuracy of the stellar occultation technique to detect the oxygen number density and temperature in near space. Based on the validation of the algorithm related to stellar occultation using a single wavelength of 762 nm ...
Qinglin Zhu, Jiaji Wu, Cheng Xuan
exaly   +3 more sources

Occultation portal: A web-based platform for data collection and analysis of stellar occultations

open access: yesMonthly Notices of the Royal Astronomical Society, 2022
ABSTRACT Recording a stellar occultation is one powerful method that gives direct information about the physical properties of the occulting Solar system object. In order to obtain reliable and accurate results, simultaneous observations from different locations across-track of the projected path are of great importance.
Y Kilic   +11 more
openaire   +7 more sources

Accurate geometric albedo, shape, and size of Hi’iaka from a stellar occultation [PDF]

open access: yesNature Communications
Stellar 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
doaj   +2 more sources

A stellar occultation by the transneptunian object (50000) Quaoar observed by CHEOPS [PDF]

open access: yes, 2022
International audienceContext. Stellar occultation is a powerful technique that allows the determination of some physical parameters of the occulting object.
L. Delrez   +325 more
core   +8 more sources

Stratospheric temperature measurements from nanosatellite stellar occultation observations of refractive bending [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
Stellar occultation observations from space can probe the stratosphere and mesosphere at a fine vertical scale around the globe. Unlike other measurement techniques like radiosondes and aircraft, stellar occultation has the potential to observe the ...
D. L. McGuffin   +8 more
doaj   +1 more source

Stellar occultations by trans-Neptunian objects

open access: yesThe Astronomy and Astrophysics Review, 2023
Stellar occultations provide a powerful tool to explore objects of the outer solar system. The Gaia mission now provides milli-arcsec accuracy on the predictions of these events and makes possible observations that were previously unthinkable. Occultations return kilometric accuracies on the three-dimensional shape of bodies irrespective of their ...
Bruno Sicardy   +4 more
openaire   +6 more sources

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