The International Earth Rotation and Reference Systems Service (IERS), formerly the International Earth Rotation Service, is the body responsible for maintaining...
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abandoned IERS Earth Orientation Center: Earth rotation data and interactive analysis International Earth Rotation and Reference Systems Service (IERS) If...
43 KB (4,885 words) - 04:03, 17 December 2024
maintained by the International Earth Rotation and Reference Systems Service (IERS). Practical navigation systems are in general referenced to a specific...
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months in advance in "Bulletin C" produced by the International Earth Rotation and Reference Systems Service. The leap seconds cannot be predicted far in advance...
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International Celestial Reference System and Frame (Technical report). Frankfurt am Main: International Earth Rotation and Reference Systems Service (IERS)...
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International Earth Rotation and Reference Systems Service (IERS). It passes about 5.3 arcseconds east of George Biddell Airy's 1851 transit circle, and thus it...
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Leap second (category Articles needing additional references from December 2023)
in advance by the International Earth Rotation and Reference Systems Service (IERS), to ensure that the difference between the UTC and UT1 readings will...
71 KB (7,625 words) - 11:17, 16 December 2024
Sidereal time (redirect from Earth rotation angle)
University Press. ISBN 0-521-63280-3. "Earth Rotation Angle". International Earth Rotation and Reference System Service. 2013. Retrieved 20 March 2018. Explanatory...
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the International Earth Rotation and Reference Systems Service Time Lord Award, recognition of lifetime achievement granted by the International Timing...
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Observatory and HM Nautical Almanac Office. Besides the IAU list of units and constants, also the International Earth Rotation and Reference Systems Service defines...
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Satellite navigation (redirect from Satellite navigation systems)
The International GNSS Service (IGS) International Global Navigation Satellite Systems Society Inc (IGNSS) International Earth Rotation and Reference Systems...
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Day length fluctuations (category Earth)
interactions between the dynamic atmosphere and Earth itself. The International Earth Rotation and Reference Systems Service monitors the changes. In the absence...
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Polar motion (redirect from Earth Wobble Cause)
motion of the Earth is the motion of the Earth's rotational axis relative to its crust.: 1 This is measured with respect to a reference frame in which...
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ever-changing orientation of the Earth in space are available from the International Earth Rotation and Reference Systems Service. Examples include: J2000: One...
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from a measure of the Earth's angle with respect to the International Celestial Reference Frame (ICRF), called the Earth Rotation Angle (ERA, which serves...
22 KB (2,389 words) - 17:02, 14 December 2024
definitions and numerical standards. International Earth Rotation and Reference Systems Service. For complete document see Gérard Petit and Brian Luzum...
10 KB (1,152 words) - 12:54, 23 January 2024
Astronomical unit (redirect from Distance from the earth to the sun)
no. 36: General definitions and numerical standards (Report). International Earth Rotation and Reference Systems Service. Archived (PDF) from the original...
53 KB (5,370 words) - 18:29, 22 November 2024
day. Earth's rotation period relative to the fixed stars, called its stellar day by the International Earth Rotation and Reference Systems Service (IERS)...
218 KB (19,311 words) - 11:05, 21 December 2024
Day (category Articles needing additional references from May 2023)
announced in advance by the International Earth Rotation and Reference Systems Service (IERS), which measures the Earth's rotation and determines whether a leap...
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also works for the International Earth Rotation and Reference Systems Service. In recognition of his work on Global Positioning System (GPS) satellite navigation...
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Prime meridian (redirect from International Prime Meridian)
to denote the Earth's prime meridian (0° longitude) by the International Earth Rotation and Reference Systems Service, which defines and maintains the...
60 KB (4,777 words) - 22:16, 9 October 2024
time and solar time. Its measurement by several observatories is coordinated by the International Earth Rotation and Reference Systems Service (IERS)...
19 KB (2,441 words) - 16:58, 14 December 2024
GPS-based laboratory time references routinely achieve 10 ns precision. International Earth Rotation and Reference Systems Service Precision Time Protocol...
10 KB (1,147 words) - 16:57, 21 November 2024
Geodesy (redirect from Geodetic and Geomatic Engineering)
such frame is WGS84, as well as frames by the International Earth Rotation and Reference Systems Service (IERS). GNSS receivers have almost completely...
40 KB (4,385 words) - 19:35, 8 December 2024
taken over by the International Bureau of Weights and Measures (BIPM) and the International Earth Rotation and Reference Systems Service (IERS). The creation...
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Intercalation (timekeeping) (category Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference)
intercalation. The International Earth Rotation and Reference Systems Service can insert or remove leap seconds from the last day of any month (June and December...
6 KB (878 words) - 21:58, 22 September 2024
Tidal acceleration (section Earth–Moon system)
as ΔT. Recent values can be obtained from the International Earth Rotation and Reference Systems Service (IERS). A table of the actual length of the day...
36 KB (4,749 words) - 18:19, 7 December 2024
General. 1971. (Irish statute) International Earth Rotation and Reference Systems Service The original BBC World Service GMT time signal in MP3 format...
21 KB (2,461 words) - 00:32, 17 December 2024
Time in Finland (section Notes and references)
2022. Heikki 1999, p. 100. "Leap Seconds List". International Earth Rotation and Reference Systems Service. Archived from the original on 5 March 2022. Retrieved...
49 KB (4,676 words) - 17:41, 29 October 2024
introduction of improved transportation and communications systems in the 20th century that the question of an International Date Line truly became a question...
47 KB (5,471 words) - 01:45, 21 December 2024