PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-03:28:00
G08     273.2          21.0                7.0 +/-    1.93      14.9 +/-    1.93  0.140 / 0.210
G10     43.9           61.7                3.0 +/-    0.68       3.4 +/-    0.68  0.080 / 0.210
G11     314.7          14.1                5.6 +/-    4.48      14.3 +/-    4.48  0.060 / 0.150
G14     253.4          62.8                6.0 +/-    2.40       6.6 +/-    2.40  0.090 / 0.170
G18     83.0           42.3                4.8 +/-    1.07       6.7 +/-    1.07  0.040 / 0.030
G21     152.5          22.6                6.0 +/-    2.64      12.3 +/-    2.64  0.040 / 0.030
G24     44.1           16.9                3.7 +/-    0.72       8.9 +/-    0.72  0.050 / 0.060
G27     236.4          20.6                9.5 +/-    2.50      20.7 +/-    2.50  0.050 / 0.070
G31     180.2          22.1                6.0 +/-    1.71      12.5 +/-    1.71  0.080 / 0.120
G32     301.2          75.6                6.8 +/-    1.14       7.0 +/-    1.14  0.100 / 0.150