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TT differs from Geocentric Coordinate Time (TCG) by a constant rate. Formally it is defined by the equation = +, where TT and TCG are linear counts of SI seconds in Terrestrial Time and Geocentric Coordinate Time respectively, is the constant difference in the rates of the two time scales, and is a constant to resolve the epochs (see below).
[b] TAI was henceforth a realisation of TT, with the equation TT(TAI) = TAI + 32.184 s. [ 16 ] The continued existence of TAI was questioned in a 2007 letter from the BIPM to the ITU-R which stated, "In the case of a redefinition of UTC without leap seconds, the CCTF would consider discussing the possibility of suppressing TAI, as it would ...
TT-UT1 2000+ ΔT vs. time from 1657 to 2022 [1] [2] In precise timekeeping, ΔT (Delta T, delta-T, deltaT, or DT) is a measure of the cumulative effect of the departure of the Earth's rotation period from the fixed-length day of International Atomic Time (86,400 seconds).
This article about a location in Đồng Tháp Province, Vietnam is a stub. You can help Wikipedia by expanding it.
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Sa Pa District is in Lào Cai Province, northwest Vietnam, 380 km northwest of Hanoi close to the border with China. The Hoàng Liên Sơn range of mountains dominates the district, which is at the eastern extremity of the Himalayas. This range includes Vietnam's highest mountain, Fan Si Pan, at a height of 3143 m above sea level.
Cái Nước is a rural district of Cà Mau province in the Mekong Delta region of Vietnam.As of 2019 the district had a population of 136,638. [1] [2] The district capital lies at Cái Nước.
The provinces of Vietnam are subdivided into second-level administrative units, namely districts (Vietnamese: huyện), provincial cities (thành phố trực thuộc tỉnh), and district-level towns (thị xã).