Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract This paper presents key results achieved on analysis of relation between high-quality simultaneous Dobson, Brewer ground and TOMS-V8, GOME-WFDOAS satellite total ozone observations for Hradec Kralove, Czech Republic. St...

The objectives of on-orbit servicing (OOS) missions include manipulation, proximity operations and inspection of target satellites. Therefore the servicer satellite often has to be teleoperated at low latency for several minutes to fulfill these tasks. That means communication plays a crucial role for OOS missions because real time teleoperation including high data rates has to be realized. So ...

Though the level of precise timekeeping for military satellite communications (milsatcom) applications may not be as stringent as that required for satellite navigation, milsatcom poses its own unique timekeeping problems. For example, milsatcom timekeeping must be precise without putting an undue burden on a ground station? workload. Further, milsatcom timekeeping must be robust, with the abil...

This paper presents key results achieved by an analysis of the relation between high-quality simultaneous Dobson, Brewer ground and TOMS-V8, GOME-WFDOAS satellite total ozone observations for Hradec Kralove, Czech Republic. Statistically significant seasonal differences with maxima up to 4% of monthly averages have been found between Dobson and Brewer measurements during the winter/spring month...

In an ideal case telepresence achieves a state, where a human operator can no longer di erentiate between an interaction with a real environment or a technical mediated one. This state is called transparent telepresence. The applicability of telepresence to on-orbit servicing (OOS), i.e. an unmanned servicing operation in space, teleoperated from ground in real time, is veri ed in this paper. F...

This paper presents a new approach for assessing faultmode risk in a Ground Based Augmentation System (GBAS) such as the Federal Aviation Administration’s Local Area Augmentation System (LAAS). According to current GBAS standards, the ground system is burdened with the full responsibility for protecting users from hazardous navigation errors that might result from a satellite fault. Unfortunate...

In order to improve the routine of water quality monitoring and reduce the risk of accidental or deliberate contaminations, this paper presents the development of in-situ water quality monitoring and analysis system based on small satellite technology. A space mission design and analysis was performed in this work. The system consists of three segments; space segment including a constellation o...

M.J. Brewer *, Texas AgriLife Research and Department of Entomology, Texas AgriLife Research and Extension Center at Corpus Christi, Corpus Christi, TX 78406; J.S. Armstrong, USDA ARS Beneficial Insect Research Unit, Kika de la Garza Subtropical Agricultural Research Center, Weslaco, TX 78596; E.G. Medrano, USDA ARS Cotton Pathology Research Unit, Southern Plains Agricultural Research Center, C...