Results 51 to 60 of about 1,544 (147)

Submicrosecond time transfer between the United States, United Kingdom, and Australia via satellite [PDF]

During 1972 time transfer experiments were run between the U.S. Naval Observatory and the Royal Greenwich Observatory and, in 1973, between the U.S. Naval Observatory and the Division of National Mapping in Canberra, Australia.
Easton, R. L., Morgan, P., Smith, H. M.
core   +1 more source

A Comparative Study of SBAS Systems for Navigation in Geostationary Orbit [PDF]

, 2015
Real data has been collected from space demonstrating the CanX-2 receiver’s ability to track the WAAS, EGNOS, GAGAN, and MSAS systems. Two types of analysis were performed, in order to assess the suitability of SBAS ranging measurements as a source of ...
Kahr, Erin, Montenbruck, Oliver, O'Keefe, Kyle   +2 more
core  

Satellite Emission Range Inferred Earth Survey (SERIES) project [PDF]

The Global Positioning System (GPS) was developed by the Department of Defense primarily for navigation use by the United States Armed Forces. The system will consist of a constellation of 18 operational Navigation Satellite Timing and Ranging (NAVSTAR ...
Buennagel, L. A., Macdoran, P. F., Neilan, R. E., Spitzmesser, D. J., Young, L. E.   +4 more
core   +1 more source

Detection of elusive Radio and Optical emission from Cosmic-ray showers in the 1960s

, 2011
During the 1960s, a small but vibrant community of cosmic ray physicists, pioneered novel optical methods of detecting extensive air showers (EAS) in the Earth's atmosphere with the prime objective of searching for point sources of energetic cosmic gamma-
Fegan, David J.
core   +1 more source

Application of "Galileo High Accuracy Service" on Single-Point Positioning. [PDF]

Sensors (Basel), 2023
Angrisano A, Ascione S, Cappello G, Gioia C, Gaglione S.   +4 more
europepmc   +1 more source

INSTITUTE OF PHYSICS PUBLISHING [PDF]

doi:10.1088/0026-1394/42/4/005 Geodetic techniques for time and frequency comparisons using GPS phase and code ...
Jim Ray, Ken Senior
core   +1 more source

The Implementation of Precise Point Positioning (PPP): A Comprehensive Review. [PDF]

Sensors (Basel), 2023
Elsheikh M, Iqbal U, Noureldin A, Korenberg M.   +3 more
europepmc   +1 more source

TEMPO2, a new pulsar timing package. I: Overview

, 2006
Contemporary pulsar timing experiments have reached a sensitivity level where systematic errors introduced by existing analysis procedures are limiting the achievable science.
Backer, Backer, Bell, Blandford, Damour, Damour, Feissel, Folkner, Foster, Foster, G. B. Hobbs, Guinot, Harada, Hilton, Hobbs, Hobbs, Irwin, Issautier, Jenet, Kopeikin, Kopeikin, Lange, Lieske, Lorimer, Lyne, Lyne, Lyne, Manchester, McCarthy, Petit, Phillips, Press, R. N. Manchester, R. T. Edwards, Ryba, Seiber, Seidelmann, Shapiro, Shklovskii, Spitzer, Splaver, Stairs, Standish, Standish, Taylor, Taylor, van der Swaluw, Wall, Wang, Wex, Wolszczan   +50 more
core   +1 more source

Manned Mars mission solar physics: Solar energetic particle prediction and warning [PDF]

There are specific risks to the crew of the manned Mars mission from energetic particles generated by solar activity. Therefore, mission planning must provide for solar monitoring and solar activity forecasts.
Suess, S. T.
core   +1 more source

Prehistory of Transit Searches

, 2018
Nowadays the more powerful method to detect extrasolar planets is the transit method. We review the planet transits which were anticipated, searched, and the first ones which were observed all through history. Indeed transits of planets in front of their
A Helden Van, A Lecavelier des Etangs, A Lecavelier des Etangs, AM Lagrange, D Belorizky, D Lardner, DM Kipping, E Ledger, E Piggot, EJ Korpela, FJ Baumgartner, G Galilei, G Rémy, Goodricke, H Deeg, J Kepler, J Kepler, J Kepler, J Napier, J Schneider, J Schneider, J Tarde, JM Vaquero, L. R. Doyle, Laurance R. Doyle, LFA Arnold, M Hoskin, M Mayor, MAC Perryman, N Copernicus, O Struve, P Gassendi, R Lallemand, Strand KAa, UJ Verrier Le, VB Kostov, W Borucki   +36 more
core   +2 more sources