PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-14:12:50
G01     243.4          31.9                6.1 +/-    1.66      10.3 +/-    1.66  0.080 / 0.090
G03     313.6          54.3                3.5 +/-    1.08       4.2 +/-    1.08  0.080 / 0.120
G14     67.2           36.2                4.8 +/-    1.44       7.4 +/-    1.44  0.060 / 0.050
G16     163.6          21.2                7.1 +/-    2.68      15.2 +/-    2.68  0.040 / 0.050
G18     213.7          21.3                7.6 +/-    2.63      16.2 +/-    2.63  0.090 / 0.110
G22     283.8          75.3                5.3 +/-    0.83       5.4 +/-    0.83  0.090 / 0.110
G23     291.3          23.0                6.0 +/-    1.49      12.3 +/-    1.49  0.050 / 0.100
G26     134.7          42.2                7.5 +/-    0.76      10.5 +/-    0.76  0.070 / 0.110
G31     40.4           53.6                5.3 +/-    0.73       6.4 +/-    0.73  0.030 / 0.030
G32     80.4           23.0                5.8 +/-    1.24      11.9 +/-    1.24  0.030 / 0.030