File:Leapsecond.ut1-utc.svg

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Summary

Description
English: Plot showing the difference UT1−UTC in seconds. Vertical segments correspond to leap seconds. Red part of graph was prediction (future values) at the time the file was made.
Čeština: Graf zobrazující rozdíl UT1−UTC v sekundách. Svislé úseky odpovídají přestupným sekundám. Červená část je předpověď budoucích hodnot (v okamžiku vytvoření grafu).
Date 2017-01-05, last update 2024-07-04
Source Own work using: https://maia.usno.navy.mil/ser7/finals.all
Author Tomia (talk · contribs)
Petr Kadlec (talk · contribs)
Gordon P. Hemsley (talk · contribs)
RP88 (talk · contribs)
Permission
(Reusing this file)
This work is ineligible for copyright and therefore in the public domain because it consists entirely of information that is common property and contains no original authorship.
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

Other versions
  • Original PNG image (2005)
    Original PNG image (2005)
  • Derivative SVG image (2008)
    Derivative SVG image (2008)
SVG development
InfoField
 
The SVG code is valid.
 
This plot was created with Gnuplot.

Source code

Generated using the following scripts: 

wget https://maia.usno.navy.mil/ser7/finals.all  cut -c 1-2,3-4,5-6,8-15,58,59-68 --output-delimiter " " finals.all > finals-cut.txt grep "P" finals-cut.txt > finals-pred.txt grep "I" finals-cut.txt > finals-iers.txt  gnuplot leapsecs.gnuplot

leapsecs.gnuplot contains commands for gnuplot 6.0: 

set xdata time set timefmt "%Y-%m-%d" set format x "%Y" set xrange ["1973-01-01":"2026-01-01"] set yrange [-0.9:0.9] set xtics "1970-01-01", 5 years set mxtics time 1 year set grid lt 3 lc 0 set terminal svg font "Arial,16" set style line 1 lc rgb 'dark-green' lt 1 set style line 2 lc rgb 'red' lt 1 unset key makedate(y,m,d,j) = sprintf("%04d-%02d-%02d", (j <= 51543 ? 1900 + y : 2000 + y), m, d) set output 'Leapsecond.ut1-utc.svg' plot \     'finals-iers.txt' \         using (makedate($1,$2,$3,$4)):($6) \         with lines linestyle 1 title 'Measured', \     'finals-pred.txt' \         using (makedate($1,$2,$3,$4)):($6) \         with lines linestyle 2 title 'Predicted' set output

Captions

Plot showing the difference UT1−UTC in seconds

media type

image/svg+xml

File history

Click on a date/time to view the file as it appeared at that time.

(newest | oldest) View (newer 10 | ) (10 | 20 | 50 | 100 | 250 | 500)
Date/TimeThumbnailDimensionsUserComment
current20:29, 4 July 2024Thumbnail for version as of 20:29, 4 July 2024600 × 480 (305 KB)RP88Updated to use data available as of 2024-07-04. Updated to use gunplot 6.0.
02:57, 3 January 2024Thumbnail for version as of 02:57, 3 January 2024600 × 480 (301 KB)RP88Updated to use data available as of 2024-01-03. Prediction through 2025.
03:17, 4 August 2023Thumbnail for version as of 03:17, 4 August 2023600 × 480 (298 KB)RP88Updated to use data available as of 2023-08-03. Prediction through 2024.
15:17, 30 September 2022Thumbnail for version as of 15:17, 30 September 2022600 × 480 (246 KB)Mormegilupdated to current data
08:59, 1 April 2022Thumbnail for version as of 08:59, 1 April 2022600 × 480 (242 KB)Mormegilupdated to current data
09:02, 4 January 2021Thumbnail for version as of 09:02, 4 January 2021600 × 480 (238 KB)Mormegilupdated to current data
08:16, 29 April 2020Thumbnail for version as of 08:16, 29 April 2020600 × 480 (235 KB)Mormegilupdate data
14:00, 24 September 2019Thumbnail for version as of 14:00, 24 September 2019600 × 480 (234 KB)Mormegilupdated to current data with prediction until 2020-09
10:46, 23 January 2019Thumbnail for version as of 10:46, 23 January 2019600 × 480 (231 KB)Mormegilupdated to current data
07:47, 13 August 2018Thumbnail for version as of 07:47, 13 August 2018600 × 480 (229 KB)Mormegilupdated to current data
(newest | oldest) View (newer 10 | ) (10 | 20 | 50 | 100 | 250 | 500)

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Metadata

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