PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-03:27:40
G08     305.6          20.9                9.1 +/-    1.93      19.6 +/-    1.93  0.100 / 0.090
G10     335.4          60.4                5.6 +/-    0.56       6.3 +/-    0.56  0.100 / 0.060
G14     219.8          35.3               10.5 +/-    1.65      16.6 +/-    1.65  0.060 / 0.070
G15     47.2           11.0                5.5 +/-    1.22      15.1 +/-    1.22  0.080 / 0.060
G18     40.3           59.3                7.4 +/-    0.64       8.4 +/-    0.64  0.020 / 0.020
G21     136.4          54.5                7.9 +/-    0.32       9.5 +/-    0.32  0.030 / 0.020
G24     72.3           30.4                7.0 +/-    1.46      12.1 +/-    1.46  0.030 / 0.040
G27     269.2          37.0                8.0 +/-    1.88      12.2 +/-    1.88  0.040 / 0.030
G32     226.2          54.3                8.6 +/-    2.65      10.4 +/-    2.65  0.080 / 0.130