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Observations of artificial satellites
Annals of Geophysics, 1964 The following publication gives the results of photographic<br />observations of artificial satellites made at Asiago during the second<br />and third year of this programme.
A. MAMMANO
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ON CONDUCTION OF THE ORBITS OF ARTIFICIAL SATELLITES
Odessa Astronomical Publications, 2017 Two-channel photoelectric photometer was made in 1971 in the Uzhgorod State University, which was intended for calculating of brightness of low-orbital satellites.
M. V. Bratijchuk +3 more
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Científica, 2022 There are different ways to solve motion problems, namely, Newtonian, Lagrangian, Hamiltonian, powerful methods in solving any problem related to motion and its possible causes.
Mario Antonio Ramirez Flores +1 more
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The Astronomical Journal, 2023 The apparent brightness of satellites is calculated as a function of satellite position as seen by a ground-based observer in darkness. Both direct illumination of the satellite by the Sun as well as indirect illumination due to reflection from the Earth
Forrest Fankhauser +2 more
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Development of an Autonomous Redundant Attitude Determination System for Cubesats [PDF]
Journal of Aerospace Technology and Management, 2020 This work deals with the problem of the design of an autonomous redundant system for the attitude determination of nanosatellites. The system consists of a circuit board equipped with three microcontrollers, a magnetic field sensor in three axes, and ...
Ricardo O. Duarte +3 more
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GEO satellite station keeping mass design based on data mining [PDF]
فصلنامه علوم و فناوری فضایی, 2021 n GEO communicational satellites, thrusts are being used for many missions such as station keeping, longitude change maneuver and actuators desaturation. These types of actuators need fuel and its estimation requires many complicated calculations.
Ehsan Maani +2 more
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Chirp pseudo‐noise signal and its receiving scheme for LEO enhanced GNSS
IET Radar, Sonar & Navigation, 2022 Low earth orbit (LEO) constellations for enhancing global navigation satellite systems (GNSS) have been investigated and studied due to their higher floor power and rapid geometric changes. Compared with GNSS based on medium orbit (MEO) and geostationary
Xin Zhao +4 more
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Positioning via GEO communication satellites’ signals of opportunity
IET Radar, Sonar & Navigation, 2021 Inherent vulnerabilities seriously weaken global navigation satellite system service capability, particularly in hostile environments where electronic jamming, blocking, and deception can occur.
Yuanyuan Gao +5 more
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Improved position estimation method for locating an encrypted COSPAS‐SARSAT beacon
IET Radar, Sonar & Navigation, 2021 This study addresses a signal processing technique in a search and rescue system. An international disaster rescue communications support programme such as COSPAS‐ search and rescue satellite‐aided tracking (SARSAT) estimates the position of a beacon ...
Jung‐Hoon Lee +3 more
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IET Radar, Sonar & Navigation, 2021 Global navigation satellite systems (GNSSs) are increasingly used for multi‐satellite missions in space service volume (SSV). However, the performance of GNSS‐based autonomous orbit determination (AOD) for SSV users is severely constrained by limited ...
Kui Lin +4 more
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