Results 1 to 10 of about 373 (258)
Design and Simulation of Stellar Occultation Infrared Band Constellation
Remote 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, Xiang Dong
exaly +4 more sources
Research on Stellar Occultation Detection With Bandpass Filtering for Oxygen Density Retrieval
Remote Sensing, 2023 Stellar occultation instruments detect the transmission of stellar spectra through the planetary atmosphere to retrieve densities of various atmospheric components.
Zhaoai Yan, Xiong Hu, Cui Tu
exaly +3 more sources
Remote 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 ...
Jiaji Wu, Qinglin Zhu, Xiang Dong
exaly +3 more sources
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
doaj +2 more sources
Oxygen and Air Density Retrieval Method for Single-Band Stellar Occultation Measurement
Remote SensingThe 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
Zhaoai Yan, Xiong Hu, Cui Tu
exaly +3 more sources
Stratospheric temperature measurements from nanosatellite stellar occultation observations of refractive bending [PDF]
Atmospheric 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
Retrieval of the Stratospheric Density by the Star Occultation
Aerospace, 2023 The navigation by the stellar refraction is important for a LEO (Low-Earth-Orbit) satellite, especially in a GNSS (Global Navigation Satellite System)-denied environment, since it is totally autonomous.
Kedong Wang, Zhennan Li, Shaoxiong Zhang
doaj +1 more source
The Upper Atmosphere of Uranus from Stellar Occultations. I. Methods and Validation
The Planetary Science Journal, 2023 Measurements made by the Voyager 2 spacecraft during its flybys of Uranus in 1986 found warm stratospheric and hot thermospheric temperatures that cannot be explained by solar energy alone.
William R. Saunders +4 more
doaj +1 more source
The Planetary Science Journal, 2021 In 2019, the Research and Education Collaborative Occultation Network (RECON) obtained multiple-chord occultation measurements of two Centaur objects: 2014 YY _49 on 2019 January 28 and 2013 NL _24 on 2019 September 4.
Ryder H. Strauss +48 more
doaj +1 more source
Retrieval of ozone profiles from GOMOS limb scattered measurements [PDF]
Atmospheric Measurement Techniques, 2011 The GOMOS (Global Ozone Monitoring by Occultation of Stars) instrument on board the Envisat satellite measures the vertical composition of the atmosphere using the stellar occultation technique. While the night-time occultations of GOMOS have been proven
S. Tukiainen +7 more
doaj +1 more source