Occultations of astrophysical radio sources as probes of planetary environments: A case study of Jupiter and possible applications to exoplanets [PDF]
ApJ 836, 114 (2017), 2017 Properties of planetary atmospheres, ionospheres, and magnetospheres are difficult to measure from Earth. Radio occultations are a common method for measuring these properties, but they traditionally rely on radio transmissions from a spacecraft near the planet.
arxiv +1 more source
Determination of uncertainty profiles in neutral atmospheric properties measured by radio occultation experiments [PDF]
, 2021 Radio occultations are commonly used to assess remotely the thermodynamic properties of planets or satellites' atmospheres within the solar system. The data processing usually involves the so-called Abel inversion method or the numerical ray-tracing technique.
arxiv +1 more source
Ionospheric S4 Scintillations from GNSS Radio Occultation (RO) at Slant Path
Remote Sensing, 2020 Ionospheric scintillation can significantly degrade the performance and the usability of space-based communication and navigation signals. Characterization and prediction of ionospheric scintillation can be made from the Global Navigation Satellite ...
Dong L. Wu
semanticscholar +1 more source
Data intensive scientific analysis with grid computing [PDF]
, 2011 At the end of September 2009, a new Italian GPS receiver for radio occultation was launched from the Satish Dhawan Space Center (Sriharikota, India) on the Indian Remote Sensing OCEANSAT-2 satellite.
E. Kursinski +12 more
core +1 more source
Forecast Impact of FORMOSAT‐7/COSMIC‐2 GNSS Radio Occultation Measurements
Atmospheric Science Letters, 2020 The FORMOSAT‐7/COSMIC‐2 GNSS‐RO mission was launched on June 25, 2019, and it has provided a large increase in the number of GNSS‐RO observations available for operational numerical weather prediction (NWP) in the latitude band between ±40°. A key aim of
B. Ruston, S. Healy
semanticscholar +1 more source
Geophysical Research Letters, 2021 The wind shear theory is widely accepted as an explanation for the formation of a sporadic E (Es) layer, but the direct comparison of Es with the local wind shear has been limited due to the lack of neutral wind measurements. This study examines the role
Y. Yamazaki +9 more
semanticscholar +1 more source
Forthcoming Close Angular Approaches of Planets to Radio Sources and Possibilities to Use Them as GR Tests [PDF]
Solar System Research, 2009, Vol. 43, No. 4, pp. 313-318, 2009 During close angular approaches of solar system planets to astrometric radio sources, the apparent positions of these sources shift due to relativistic effects and, thus, these events may be used for testing the theory of general relativity; this fact was successfully demonstrated in the experiments on the measurements of radio source position shifts ...
arxiv +1 more source
Occultation observation to probe the turbulence scale size in the plasma tail of comet Schwassmann-Wachmann 3-B [PDF]
2007, ApJ, 668, L67, 2007 We present the occultation observation of compact radio source B0019-000 through the plasma tail of comet Schwassmann-Wachmann 3-B. The observation was made with the Ooty Radio Telescope at 326.5 MHz on 2006 May 26, when the plasma tail of the comet was in front of this source.
arxiv +1 more source
Upper atmospheres and diagnostic measurements [PDF]
, 1974 Candidate space missions to study the temperature profiles, and ratios of hydrogen to helium in outer planet atmospheres are discussed in terms of scientific payloads for optical occultation, radio occultation, and thermometer ...
Hunten, D.
core +1 more source
Consistency and structural uncertainty of multi-mission GPS radio occultation records
Atmospheric Measurement Techniques, 2019 . Atmospheric climate monitoring requires observations of high quality that conform to the criteria of the Global Climate Observing System (GCOS). Radio occultation (RO) data based on Global Positioning System (GPS) signals are available since 2001 from ...
A. Steiner +17 more
semanticscholar +1 more source