The Experts below are selected from a list of 171 Experts worldwide ranked by ideXlab platform
Nasa - One of the best experts on this subject based on the ideXlab platform.
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Interim Definitive Orbit for the Satellite 1959 Alpha Vanguard-II
2019Co-Authors: NasaAbstract:A summary of certain position information indicating accuracies for the orbital arcs underlying the ephemeris is presented in table 1. The detailed ephemeris information is presented at the end of this report in the form of tables which give the latitude and longitude of the sub satellite point and the satellite height for each minute of time. The subsatellite point is defined here as the point on the earth's surface over which the satellite was determined to be at the indicated time. This form of presentation was recommended by the International Geophysical Year agencies concerned, for use in specifying the orbital positions of IGY satellites. time is specified by giving in columns, the day, hour, and minute of greenwich mean time.
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Interim Definitive Orbit for the Satellite 1958-Alpha, Explorer-1
2019Co-Authors: NasaAbstract:A summary of certain position information indicating accuracies for the orbital arcs underlying the ephemeris is presented in table 1. The detailed ephemeris information is presented at the end of this report in the form of tables which give the latitude and longitude of the subsatellite point and the satellite height for each minute of time. The subsatellite point is defined here as the point on the earth's surface over which the satellite was determined to be at the indicated time. The form of presentation was recommended by the International Geophysical Year agencies concerned, for use in specifying the orbital positions of IGy satellites. time is specified by giving in columns, the day, hour, and minute of greenwich mean time.
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Interim Definitive Orbit for the Satellite 1958-Epsilon, Explorer-IV
2019Co-Authors: NasaAbstract:A summary of certain position information indicating accuracies for the orbital arcs underlying the ephemeris is presented in table 1. The detailed ephemeris information is presented at the end of this report in the form of tables which give the latitude and longitude of the subsatellite point and the satellite height for each minute of time. The subsatellite point is defined here as the point on the earth's surface over which the satellite was determined to be at the indicated time. This form of presentation was recommended by the International Geophysical Year agencies concerned, for use in specifying the orbital positions of IGY satellites. time to specified by giving in columns, the NASA day, hour, and minute of greenwich mean time.
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ASTP Technical Air-To-Ground Voice Transcription
2013Co-Authors: NasaAbstract:The transcription of the technical air-to-ground voice communication of the Apollo-Soyuz Test Project mission was presented. The transcript was divided into three columns giving, respectively, the time, speaker, and text. All times are expressed in greenwich mean time for the appropriate Julian dates. The speaker column indicates the source of transmission; the text column contains the verbatim transcript of the communications. Special symbols were used to report garbling, pauses or self-interruptions, interruptions by other speakers or abrupt terminations, emphasized words, obliterations, and material translated from Russian.
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ASTP Onboard Voice Transcription
2013Co-Authors: NasaAbstract:The transcription is presented of the Apollo-Soyuz Test Project voice communications as recorded on the command module data storage equipment. Data from this recorder are telemetered (dumped) to Space Tracking and Data Network sites for retransmission to the Johnson Space Center. The transcript is divided into three columns -- time, speaker, and text. The greenwich mean time column consists of three two-digit numbers representing hours, minutes, and seconds (e.g., 22 34 14) for the Julian dates shown at the top of the page on which a new day begins. The speaker column indicates the source of a transmission; the text column contains the verbatim transcript of the communications.
Dirk H. R. Spennemann - One of the best experts on this subject based on the ideXlab platform.
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Just how international is my Web site? Estimating reach through analysis of hourly demand
First Monday, 2005Co-Authors: Dirk H. R. SpennemannAbstract:The increased commercialisation of Internet domain sales created the unanticipated side effect that domain extensions no longer signify the residence of the domain user. As a result, the analysis of the domain attributes in the Web access logs no longer provides accurate information on the origin of the users and thus of the geographical ‘reach’ of a given site. This study provides an alternative method to assess the geographical ‘reach’ by calculating the average demand for Web pages in hourly intervals originating from each time zone. The resulting analysis tool, which relates to greenwich mean time, is location independent and can be applied to Web sites world wide.
Mark Garcia - One of the best experts on this subject based on the ideXlab platform.
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Space to Ground: Summer Road Trip: 07/14/2017
2017Co-Authors: Mark GarciaAbstract:The astronauts levitated cells with magnets this week and learned how to maximize their space exercise. In case you didn't know, the crew sets their clocks to greenwich mean time.
Eric Pawson - One of the best experts on this subject based on the ideXlab platform.
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local times and standard time in new zealand
Journal of Historical Geography, 1992Co-Authors: Eric PawsonAbstract:Abstract The transition from local times to a national standard time first occurred in Britain in the late-1840s to meet the requirements of railway operation. Many other countries followed this lead in the last two decades of the nineteenth century. New Zealand however preceded the trend, when its parliament voted to adopt New Zealand mean time (NZMT), calculated as eleven and a half hours in advance of greenwich mean time, in 1868. The stimulus for this move was to facilitate the operation of its rapidly expanding telegraph service, there being no railway network at that date. This article explores the geography of local times that existed in New Zealand before 1868, discusses the adoption of NZMT in that year and assesses the extent to which the new standard was adhered to as a measure of public time thereafter.
Amy Spencer - One of the best experts on this subject based on the ideXlab platform.
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Integrated management of airport surface and airspace constraints for departures: An operational sequence
IEEE Aerospace and Electronic Systems Magazine, 2011Co-Authors: Alicia Borgman, Philip J. Smith, Mark Evans, Roger Beatty, Ken Durham, Charles E. Billings, Eric Wiley, Amy SpencerAbstract:Herein we provide an operational sequence indentifying a set of future roles and responsibilities for Air Navigation Service Provider (ANSP) and flight operator staff. It also identifies procedures and technologies necessary to support activities proposed withing future operational concepts for an Integrated Arrival/Departure Control Service, Dynamic Departure Routing, and airport surface management, with a focus on near- to mid-term (2015-2018) technical capabities. This operational sequence is then utilized to identify critical human factors considerations at an abstract level. The operational sequence is organized according to a timeline and the assumed context for the scenario. All times are reported in Zulu (greenwich mean) time.
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Integrated management of airport surface and airspace constraints for departures: An operational sequence
29th Digital Avionics Systems Conference, 2010Co-Authors: Alicia Borgman, Philip J. Smith, Mark Evans, Roger Beatty, Ken Durham, Charles E. Billings, Eric Wiley, Amy SpencerAbstract:This paper provides an operational sequence identifying a set of future roles and responsibilities for Air Navigation Service Provider (ANSP) and flight operator staff. It also identifies procedures and technologies necessary to support activities proposed within future operational concepts for an Integrated Arrival/Departure Control Service, Dynamic Departure Routing and airport surface management, with a focus on near-to mid-term (2015–2018) technical capabilities. This operational sequence is then utilized to identify critical human factors considerations at an abstract level. The operational sequence is organized according to a timeline and the assumed context for the scenario. All times are reported in Zulu (greenwich mean) time.
