File:Leapsecond.ut1-utc.svg

Original file ‎(SVG file, nominally 600 × 480 pixels, file size: 301 KB)


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 2024-01-03
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)
  • 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 5.0: 

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 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

Items portrayed in this file

depicts

Coordinated Universal Time

UT1

leap second

copyright status

copyrighted, dedicated to the public domain by copyright holder

copyright license

Creative Commons CC0 License

MIME 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 | older 10) (10 | 20 | 50 | 100 | 250 | 500)
Date/TimeThumbnailDimensionsUserComment
current02:57, 3 January 2024600 × 480 (301 KB)RP88Updated to use data available as of 2024-01-03. Prediction through 2025.
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 2022600 × 480 (246 KB)Mormegilupdated to current data
08:59, 1 April 2022600 × 480 (242 KB)Mormegilupdated to current data
09:02, 4 January 2021600 × 480 (238 KB)Mormegilupdated to current data
08:16, 29 April 2020600 × 480 (235 KB)Mormegilupdate data
14:00, 24 September 2019600 × 480 (234 KB)Mormegilupdated to current data with prediction until 2020-09
10:46, 23 January 2019600 × 480 (231 KB)Mormegilupdated to current data
07:47, 13 August 2018600 × 480 (229 KB)Mormegilupdated to current data
21:34, 5 January 2017600 × 480 (221 KB)RP88Updated to use data available as of 2017-01-05, post leap second.
(newest | oldest) View (newer 10 | older 10) (10 | 20 | 50 | 100 | 250 | 500)

Global file usage

The following other wikis use this file:

  • Usage on ar.wikipedia.org
    • ثانية كبيسة
  • Usage on azb.wikipedia.org
    • دونیانین ایستاندارد زامانی
  • Usage on be.wikipedia.org
    • Секунда каардынацыі
  • Usage on ca.wikipedia.org
    • Segon intercalar
  • Usage on cs.wikipedia.org
    • Přestupná sekunda
  • Usage on da.wikipedia.org
    • Skudsekund
  • Usage on el.wikipedia.org
    • Εμβόλιμο δευτερόλεπτο
  • Usage on es.wikipedia.org
    • Segundo intercalar
    • DUT1
  • Usage on et.wikipedia.org
    • Maailmaaeg
  • Usage on fi.wikipedia.org
    • Karkaussekunti
  • Usage on fr.wikipedia.org
    • DUT1
    • Heure Unix
  • Usage on he.wikipedia.org
    • דקה מעוברת
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    • Prijestupna sekunda
  • Usage on hu.wikipedia.org
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    • Liekā sekunde
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    • Saat lompat
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    • Skuddsekund
  • Usage on pl.wikipedia.org
    • Sekunda przestępna
    • Ruch obrotowy Ziemi
  • Usage on pt.wikipedia.org
    • Segundo intercalar
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    • Дополнительная секунда
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    • برابر عالمي وقت
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Metadata

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