Results 31 to 40 of about 86,915 (297)
Assessment of Brightness Mitigation Practices for Starlink Satellites
, 2023 Photometric characteristics for all models of Starlink satellites launched to date are reviewed. The Original design that lacked brightness mitigation is the most luminous. SpaceX installed a sunshade on the VisorSat model which reduced its luminosity by a factor of 3.
Mallama, Anthony +6 more
openaire +2 more sources
Substructure around M31 : Evolution and Effects [PDF]
, 2006 We investigate the evolution of a population of 100 dark matter satellites orbiting in the gravitational potential of a realistic model of M31. We find that after 10 Gyr, seven subhalos are completely disrupted by the tidal field of the host galaxy.
Holmberg E. +6 more
core +2 more sources
Open soil surface brightness as a direct sign for soil recognition on LANDSAT images
Бюллетень Почвенного института им. В.В. Докучаева, 2013 The variability of the brightness heterogeneities of the open chernozemic soil surface on LANDSAT images obtained in different seasons and different dates of survey were investigated.
I. Yu. Savin
doaj +1 more source
Visual Brightness Characteristics of Starlink Generation 1 Satellites
, 2022 A large dataset of visual magnitudes for all three designs of Starlink satellites is analyzed. Brightness phase functions are derived for the Original, VisorSat and Post-VisorSat models. Similarities and differences between the functions for these spacecraft are noted. A metric called the characteristic magnitude is defined as the average brightness of
Mallama, Anthony, Respler, Jay
openaire +2 more sources
Satellite and Ground-Based Sensors for the Urban Heat Island Analysis in the City of Rome
Remote Sensing, 2010 In this work, the trend of the Urban Heat Island (UHI) of Rome is analyzed by both ground-based weather stations and a satellite-based infrared sensor.
Roberto Fabrizi +2 more
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Technical Note: 30 years of HIRS data of upper tropospheric humidity [PDF]
Atmospheric Chemistry and Physics, 2014 We use 30 years of intercalibrated HIRS (High-Resolution Infrared Radiation Sounder) data to produce a 30-year data set of upper tropospheric humidity with respect to ice (UTHi).
K. Gierens, K. Eleftheratos, L. Shi
doaj +1 more source
TCCL-DenseFuse: Infrared and Water Vapor Satellite Image Fusion Model Using Deep Learning
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 This article proposes an infrared and water vapor channel satellite image fusion model (TCCL-DenseFuse) based on DenseNet. The infrared channel satellite image reflects the ground and cloud top infrared radiation or the distribution of temperature, and ...
Chang-Jiang Zhang +4 more
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Characteristics of Summer Hailstorms Observed by Radar and Himawari-8 in Beijing, China
Remote Sensing, 2022 Severe hailstorms frequently occurred in Beijing between May and August 2021, leading to extensive hail damage. These hailstorms were observed by radar and satellite data, and reported by surface observers.
Yingying Jing +6 more
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The Brightness of VisorSat-Design Starlink Satellites
, 2021 The mean of 430 visual magnitudes of VisorSats adjusted to a distance of 550-km (the operational altitude) is 5.92 +/-0.04. This is the characteristic brightness of these satellites when observed at zenith. VisorSats average 1.29 magnitudes fainter than the original-design Starlink satellites and, thus, they are 31% as bright.
openaire +2 more sources
Лëд и снег, 2015 In the frame of the work we have had investigated the utility of 6.9GHz dual polarization passive microwave data from the sensor AMSR-E for quantitative assessment of spatial and temporal variations of permafrost, seasonally frozen grounds and sea ice ...
V. V. Melentiev, I. V. Matelenok
doaj +1 more source