PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/25-04:42:30
G01     223.7          14.6                7.7 +/-    1.13      19.4 +/-    1.13  0.040 / 0.050
G03     282.1          67.5                3.1 +/-    1.14       3.3 +/-    1.14  0.030 / 0.040
G09     296.7          11.5                3.1 +/-   21.28       8.2 +/-   21.28  0.280 / 0.290
G14     90.4           20.7                3.6 +/-    1.67       7.7 +/-    1.67  0.220 / 0.420
G16     148.4          47.0                7.2 +/-    1.14       9.4 +/-    1.14  0.040 / 0.070
G22     210.8          68.3                4.7 +/-    0.92       5.0 +/-    0.92  0.040 / 0.070
G23     308.9          38.2                3.7 +/-    1.41       5.6 +/-    1.41  0.090 / 0.190
G26     97.5           55.9                5.2 +/-    0.54       6.1 +/-    0.54  0.080 / 0.200
G31     45.5           32.0                2.1 +/-    0.54       3.5 +/-    0.54  0.050 / 0.090