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Tide Gauge Details - Chile - Antarctica Base Prat 3

Device description

Name
Chile - Antarctica Base Prat 3
Country
Chile
Group
TD UNESCO
Lat/Lon
-62.479271 / -59.662899

Last measured values

Time(UTC)
02 Aug 2026 08:36:50
Latency
6154
Level
1.2

Harmonics

Points count
3963711
First date
15 Jun 2015 13:04
Last date
02 Aug 2026 06:50

Click on following link to see data:

Harmonics Constatns
Comp # Period (day) Cos factor (m) Sin factor (m)
0 0.00000 1.64894E+0 0E+0
1 0.12877 -6.06129E-5 2.34791E-4
2 0.12886 -5.18375E-5 -8.39315E-5
3 0.12938 -3.14388E-4 8.34978E-5
4 0.14707 -7.85566E-4 -6.31008E-5
5 0.16841 6.78964E-5 -1.34269E-4
6 0.16857 8.84517E-4 -1.8479E-4
7 0.17036 4.12227E-4 -1.1536E-4
8 0.17052 -1.23136E-3 -8.87395E-4
9 0.17251 5.28141E-4 -7.62422E-4
10 0.17470 1.88679E-4 3.5674E-4
11 0.19989 -4.11772E-4 -5.52414E-4
12 0.20545 6.84406E-4 1.01784E-4
13 0.24966 1.17517E-3 -1.5197E-3
14 0.25000 -4.76577E-4 -3.27315E-4
15 0.25395 -3.12598E-3 -9.81282E-4
16 0.25431 1.92925E-4 1.05494E-3
17 0.25631 -4.28443E-6 7.3494E-4
18 0.25667 -3.2199E-5 1.75123E-5
19 0.25876 2.59006E-3 -3.40384E-3
20 0.26122 -9.88445E-4 1.06762E-3
21 0.33303 2.69941E-3 1.65946E-4
22 0.34071 -1.38103E-4 -3.97825E-4
23 0.34135 -4.41554E-4 -1.44405E-3
24 0.34502 1.52054E-3 1.39145E-3
25 0.34943 -3.00639E-3 5.33052E-4
26 0.48977 6.21802E-4 -2.55443E-3
27 0.49109 8.03516E-4 -2.52772E-3
28 0.49863 -6.81921E-2 3.27658E-2
29 0.49932 8.74549E-4 2.31809E-3
30 0.50000 2.30232E-1 -8.74267E-2
31 0.50798 -1.55383E-2 5.09143E-3
32 0.50924 5.26783E-3 2.02803E-3
33 0.51606 -8.08037E-4 7.23602E-3
34 0.51679 3.72423E-4 -7.12835E-3
35 0.51753 -2.88096E-1 -3.35378E-1
36 0.51826 -5.51051E-3 -5.08105E-3
37 0.52608 -8.59083E-3 -8.67127E-3
38 0.52743 -2.60542E-2 5.24108E-2
39 0.53632 -2.25987E-3 4.30797E-3
40 0.53772 3.00755E-3 -2.29381E-5
41 0.54697 3.3945E-4 -9.4528E-4
42 0.54843 -9.71053E-4 1.3489E-4
43 0.89909 8.2741E-4 6.28728E-4
44 0.92942 1.98731E-3 -4.41197E-3
45 0.93417 -1.04354E-3 1.02081E-3
46 0.96244 -1.11858E-2 6.79529E-3
47 0.96696 1.36959E-3 1.42837E-3
48 0.99185 -1.1588E-3 -7.71038E-3
49 0.99455 1.86325E-4 6.09162E-4
50 0.99727 1.29054E-1 2.56563E-1
51 1.00000 2.47972E-3 -2.95644E-3
52 1.00275 2.57313E-2 8.97135E-2
53 1.00551 2.29222E-3 3.02251E-3
54 1.02954 9.68266E-4 3.5342E-3
55 1.03472 1.98768E-2 -5.74609E-3
56 1.04061 -1.04445E-3 5.86539E-4
57 1.06951 2.5303E-3 -2.15267E-3
58 1.07581 2.95664E-1 -1.88577E-2
59 1.11346 1.35589E-2 3.63487E-3
60 1.11951 -9.74125E-3 -6.76481E-2
61 1.16035 1.7989E-3 -1.10145E-2
62 1.16693 -1.03501E-2 2.7893E-3
63 1.21136 -3.1435E-3 1.49429E-4
64 13.66079 2.82389E-3 2.30433E-2
65 14.76529 6.67292E-3 2.64331E-3
66 27.55455 -1.22286E-2 -1.4501E-2
67 31.81193 -5.63867E-3 1.05045E-2
68 182.62118 8.48993E-3 -2.16774E-2
69 365.25998 5.29618E-2 1.33048E-2
Mathematical Formula
Tide calculation mathematical formula
Visual Basic Syntax
Function EstimateTideValues() As [Function]
                        Dim Pi As [Double] = Math.PI
                        Dim sum As [Double] = harmonics(0, 1)
                        For k As Int16 = 1 To harmonics.GetUpperBound(0)
                        Dim period As [Double] = 2 * Pi / harmonics(k, 0)
                        Dim coefCos As [Double] = harmonics(k, 1)
                        Dim coefSin As [Double] = harmonics(k, 2) 
                        sum = sum + coefCos * Math.Cos(time * period)
                        sum = sum + coefSin * Math.Sin(time * period)
                        Next
                        Return sum
                        End Function
C# Syntax
double EstimateTideValues()
                        {
                        double Pi = Math.PI;
                        double sum = harmonics[0, 1];
                        for (int k=1; k <= harmonics.GetUpperBound(0); k++)
                        {
                        double period = 2 * Pi / harmonics[k, 0];
                        double coefCos = harmonics[k, 1];
                        double coefSin = harmonics[k, 2];
                        sum += coefCos * Math.Cos(time * period);
                        sum += coefSin * Math.Sin(time * period);
                        }
                        return sum;
                        }

Axis ranges

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