Two lunar occultations of the Crab Nebula
Radio interferometric observations on lunar occultations of Crab Nebula
SEARCH · Search NASA
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Radio interferometric observations on lunar occultations of Crab Nebula
Earth and sun occultation data evaluation for use in differential correction of lunar satellite orbit
Lunar occultation and provisional identification of radio source MSH 19-27
Mariner IV radio occultation measurements of Mars upper atmosphere
Operational system temperature at Mars Deep Space Station during solar occultation of Mariner IV
Mariner IV occultation experiment on Martian atmosphere, using amplitude and frequency changes of tracking and telemetry signal
Mars atmosphere and ionosphere analyzed by measuring effect on radio occultation of planet, determining shape, atmosphere density profile, diurnal variations, etc
Mars atmosphere models based on Mariner IV OCCULTATION deriving electron number density, temperature, pressure, mass density, etc, noting carbon dioxide presence
Lunar occultation and identification of MSH 19-27 radio source, noting computer analysis of brightness distribution
Lunar occultation and identification of radio source MSH 21-23
Photoelectric device for recording occultations of stars by moon
Radio source MSH 21-23 observation during lunar occultation, using parabolic antenna and switched- type gain modulated receiver
Mars atmosphere and ionosphere analyzed by measuring effect on radio occultation of planet, determining shape, atmosphere density profile, diurnal variations, etc
Ground instrumentation system for Mariner IV OCCULTATION experiment, using Doppler frequency perturbation method for Mars atmospheric parameters determination
Diameter and position of radio source 3C 132 determined by lunar occultation, confirming identification with red galaxy
The launches of the CHAMP, SAC-C, and GRACE spacecraft have started a campaign of dense remote sensing of atmospheric refractivity profiles using GPS radio-occultations of the Earth's atmosphere.
GPS radio occultations captured by receivers on board the CHAMP and SAC-C spacecraft were used to study the evolution of temperature profiles in the Arctic region north of 65 degrees.