PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/30-23:13:10
G10     299.2          52.5               11.8 +/-    1.60      14.5 +/-    1.60  0.080 / 0.090
G14     210.6          12.2                2.9 +/-   32.03       7.8 +/-   32.03  0.080 / 0.080
G15     46.5           31.0                7.9 +/-    1.29      13.6 +/-    1.29  0.030 / 0.040
G20     289.4          40.8                7.9 +/-    0.45      11.4 +/-    0.45  0.030 / 0.030
G21     97.4           74.6               12.2 +/-    0.62      12.6 +/-    0.62  0.250 / 0.520
G24     94.3           26.7               11.1 +/-    1.31      20.8 +/-    1.31  0.110 / 0.530
G27     299.6          34.5               10.8 +/-    1.79      17.3 +/-    1.79  0.130 / 0.130
G32     210.7          34.9               16.1 +/-    1.98      25.6 +/-    1.98  0.080 / 0.120