Results 31 to 40 of about 6,304 (254)

THE METHOD FOR FAST DETERMINATION OF GEOSTATIONARY ARTH SATELLITE ORBIT FROM ANGULAR COORDINATES MEASUREMENTS

open access: yesOdessa Astronomical Publications, 2017
Classical Laplas method for determination of Keplerian orbital elements is described. The values obtained are improved by the method of differential corrections.
O. A. Bazyey   +2 more
doaj   +1 more source

SPECTRAL OBSERVATIONS OF GEOSTATIONARY SATELLITES

open access: yesEurasian Physical Technical Journal, 2022
One of the main tasks of the situational awareness system in near-Earth space is to determine the type and class of observed objects by analyzing its reflection spectra. This paper proposes a methodology and interpretation of the spectral observational data of geostationary orbit satellites obtained at the Tian
Serebryanskiy, Alexander   +4 more
openaire   +2 more sources

Optimal Co-location of Geo-satellites in the Orbital Slot of 120 Degrees East Using Differential Game Theory [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی
Due to the increasing demand for locating satellites in the geostationary orbit and considering the operational limitations in defining the geo-orbital slots, the use of a same location by several satellites is one of the solutions to increase the ...
fatemeh amozegary   +2 more
doaj   +1 more source

The Potential Impact of Assimilating Synthetic Microwave Radiances Onboard a Future Geostationary Satellite on the Prediction of Typhoon Lekima Using the WRF Model

open access: yesRemote Sensing, 2021
Geostationary meteorological satellites can provide continuous observations of high-impact weather events with a high temporal and spatial resolution.
Yuanbing Wang   +3 more
doaj   +1 more source

Drift of geostationary satellites

open access: yesScientific Herald of Uzhhorod University.Series Physics, 2005
Для трех режимов движения представлены простые уравнения изменения дрейфа и долготы неуправляемых геостационарных спутников. Приводятся примеры использования этих уравнений: определение параметров коррекции активных геоста-ционарних ...
openaire   +3 more sources

Spatial metrics in fire ecology: seeking consistency amidst complexity

open access: yesBiological Reviews, EarlyView.
ABSTRACT Technological advances, including remote sensing, have led to a proliferation of metrics used in ecological studies to examine spatial patterns of fire regimes and their ecological effects. Researchers can use many different metrics to analyse spatial variation in both fire events and resulting fire regimes, including fire size, shape ...
Alexander R. Carey   +5 more
wiley   +1 more source

Key Challenges for Commercializing Perovskite–Silicon Tandem Solar Cells

open access: yesCarbon Energy, EarlyView.
This review discusses the scientific and technological challenges in advancing perovskite–silicon tandem solar cells (PSTSCs) from lab‐scale to commercial viability, focusing on long‐term stability, scalability, and economic feasibility. Key issues include intrinsic and extrinsic degradation factors, installation conditions, environmental impacts, and ...
Bilal Mehmood   +16 more
wiley   +1 more source

Control of colocated geostationary satellites [PDF]

open access: yes, 1996
Control of the inter-satellite distances within a cluster of colocated satellites located in the same GEO window is examined with regards to the close approaches between pairs of satellites. Firstly, the orbital evolution and station keeping control of a
Hardacre, S.
core  

The Impacts of Southwest Indian Ocean Tropical Cyclones on Transient Weather in Réunion

open access: yesInternational Journal of Climatology, EarlyView.
Tropical cyclones which make passage near Réunion can have significant impacts on transient weather relative to long‐term means on the island. In this paper, these impacts were determined by a topological analysis of non‐landfalling tropical cyclones. The relationship between storm intensity, distance, duration, and seasonality plays an equal role in ...
Alexi M. Marinaki, Jennifer M. Fitchett
wiley   +1 more source

Debris mitigation in geostationary earth orbit [PDF]

open access: yes, 2004
Paper presented at Dynamics and Control of Systems and Structures in Space (DCSSS), 6th conference, Riomaggiore, Italy, July 2004The Inter-Agency Debris Committee recommendation for the reorbiting of geostationary satellites at the end of life ...
Laura Todd   +3 more
core  

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